TW201042002A - Composition for organic electroluminescent device, organic electroluminescent device, organic EL display and organic EL illumination - Google Patents

Abstract

The present invention has an object of providing an inexpensive and high performance organic electroluminescent device by a composition for an organic electroluminescent device that is used for the manuracture of an organic electroluminescent device having a low molecular weight organic layer formed by a wet film formation method and improves the uniformity of film formation. A composition for an organic electroluminescent device comprising a light emitting material, a charge transporting material, a high molecular weight compound, and an organic solvent, wherein the high molecular weigth compound consists only of atoms selected from the group consisting of a hydrogen atom, sp2 carbon atom, sp3 carbon atom, sp3 oxygen atom and silicon atom (in which all of sp2 carbon atoms contained in the high molecular weight compound constitute an aromatic hydrocarbon group).

Description

201042002 VI. Description of the Invention: The present invention relates to a composition for an organic electroluminescence device for forming an organic layer of an organic electroluminescence device. Further, the present invention relates to an organic electroluminescence device having an organic layer formed using a composition for an organic electroluminescence device, an organic EL display, and an organic EL illumination. [Prior Art] The organic electroluminescence device is usually provided with an anode, a cathode, and a ruthenium on the substrate, and an organic layer such as a light-emitting layer or a charge transport layer interposed between the anode and the cathode. The method of forming the organic layer is a vacuum deposition method or a wet film formation method. The vacuum evaporation method has the following advantages: a high-quality film can be uniformly formed on a substrate, a device which is easy to be laminated and which is easy to obtain excellent characteristics, and which is rarely mixed into the source, and impurities which are self-manufacturing processes; currently practical organic electroluminescent elements Mostly, it is made by vacuum evaporation using a low molecular material. On the other hand, the wet film formation method has the advantages that it does not require a vacuum process and is easy to enlarge. It is possible to add a plurality of materials having various functions to the i layer (coating liquid). In the case of using the wet film forming method, the material usually uses a high score. Sub-material = However, the two-molecular material has the following problems: it is difficult to control the polymerization. The amount of the knife is cloth, and when it is continuously driven, it will be bowed from the end. The inferiority caused by the base is difficult to achieve the high purity of the southern molecular material itself and contains impurities; in addition to the use of components of the polymer material, the other has not yet reached the practical level. Therefore, as an attempt to solve the above problems, the patent document 1 and 099107425 4 201042002 In the literature 2, it is proposed to form an organic layer by a wet film formation method using a low molecular material or the like, but these elements have insufficient luminous efficiency and are not practical. Further, for example, Patent Document 3 discloses that when the luminescent low molecular material is formed by a wet film formation method by an inkjet method, the relative viscosity of the solution relative to the solvent is adjusted. Stability and uniformity of the thickness of the luminescent layer in the pixel. However, the component characteristics obtained have yet to be improved. [PRIOR ART DOCUMENT] [Patent Document 1] Patent Document 1: Japanese Patent No. 3,069,139, Patent Document 2: Japanese Patent Laid-Open Publication No. H-273859 (Patent Document 3: Japanese Patent Laid-Open Publication No. 2008-277322) [Problem to be Solved] An object of the present invention is to provide a composition for an organic electroluminescence device comprising a light-emitting material, a charge-carrying material, a molecular compound, and an organic solvent, which is improved in film formation uniformity, and is inexpensive and high-performance. Organic electroluminescent element. • (Means for Solving the Problem) • When the organic layer is formed by a wet film formation method, a layer is formed by using a composition obtained by dissolving or constituting a material in a solvent. In general, the composition for wet film formation adjusts the physical properties (viscosity, surface tension, etc.) according to the coating method and the object to be coated, but this is not sufficient, and it is found based on the research of the inventors and the like. The use of a specific polymer compound can have a significant influence on the uniformity of film formation 099107425 5 201042002, thereby completing the present invention. That is, the present invention provides an organic electroluminescence member, a 70-piece organic electroluminescence, and an organic EL display and an organic EL illumination, and the composition for the organic electroluminescence device A luminescent material, a charge transporting material, a polymer compound, and an organic solvent, characterized in that the polymer compound is selected only from the group consisting of a hydrogen atom, a sp2 carbon atom, a sp3 carbon atom, an oxygen atom, and a Shixi atom. The original (4) is composed of (wherein all of the sp2 carbon atoms contained in the polymer compound constitute an aromatic smoky group). The reason for the effect of the present invention which is obtained by the above-mentioned three molecular compound is presumed to be as follows. The polymer compound of the present invention does not contain a (tetra) atom and an unsaturated double bond in the structure. Therefore, 'electrical stability and heat gain are excellent, and it is not easy to cause cracking when the components are formed. More specifically, since it does not have a chemically unstable group, reduction or oxidation by electrons or holes is less likely to occur at the time of driving. That is, it is estimated that since electrons or hole reading are less likely to occur, and W mesh reduction or oxidation occurs as a solution, no gas is generated, so that the element characteristics are not affected. Further, the right polymer compound dissolved in a solvent has a constant diffusion of the polymer chain in the solution, i.e., the free volume of the polymer compound increases. It is presumed that the low molecular compound enters the gap of the polymer compound having an increased free volume, whereby the aggregation of the low molecular compounds with each other can be suppressed. Further, it has been found that in the composition for an organic electroluminescence device, the rate of change of the viscosity of the composition when the solvent is vaporized at 099107425 6 201042002 affects the uniformity of the formation. That is, the present invention provides the composition for an organic electroluminescence device described above, and an organic electroluminescence device comprising a layer formed using the same, and an organic EL display and an organic illumination. The composition is characterized by the following { The calculation method of the increase factor is calculated as the viscosity increase coefficient of 4 Q 2 or more. {Method for calculating the viscosity increase coefficient}

❹ After measuring the viscosity of the composition before concentration, the composition (1〇g) is subjected to hair drying and drying, and the weight of the composition is concentrated to 1/2 (5 g), 1/3 (3.3 g), 1/ Viscosity of the composition at 4 (2.5 g). The horizontal axis X is set to a multiple of the above-mentioned concentration concentration 〇, 2, 3, ...), and the vertical axis is defined as a viscosity, and the curve y obtained by striking the test material is approximated by an exponential function, and the following formula (1) is used. The form is calculated. y= // lxexp(nx(x-1)) (" is the viscosity increasing coefficient) (In the above formula, V 1 is the viscosity of the composition before concentration, n (the effect of the invention) 有机 using the organic electroluminescence of the present U The film made by Yuanxian Group is formed into a uniform film. More specifically, when the coating is performed in the area where the bank is drawn by the bank, the film thickness distribution in the bank is uniform. The film thickness distribution in the case of forming a light-emitting element in a large area is uniform. [Embodiment] 099107425 7 201042002 Hereinafter, embodiments of the present invention will be described in detail, but the description of the constituent elements described below is an embodiment of the present invention. In the present invention, the composition of the organic electroluminescence device of the present invention contains a luminescent material, and the composition of the organic electroluminescence device of the present invention is not limited to the above. a charge transporting material, a polymer compound, and an organic solvent, characterized in that the polymer compound is only selected from the group consisting of a hydrogen atom, a sp2 carbon atom, a 3 carbon atom, a ruthenium 3 oxygen atom, and a Shi Xi atom. Made up of atoms And all of the sp2 carbon atom-containing aromatic hydrocarbon groups contained in the polymer compound. [Polymer compound] The polymer compound contained in the organic electroluminescent device of the present invention is characterized in that it is a system It consists only of atoms selected from the group consisting of a hydrogen atom, an SP2 carbon atom, a P anaesthesia + sp3 oxygen atom, and a (tetra) group. All of the 叩 2 carbon atoms contained in the polymer compound constitute an aromatic hydrocarbon group. , the same molecular compound towel of the present invention, excellent in chemical stability of the special I. A preferred polymer compound of the oxygen-containing (four). The so-called polymer compound containing the cerium oxide bond, more specifically, A polymer compound containing a repeating unit represented by the following formula (X): [Chemical Formula 1] 099107425 8 (X) 201042002 R1

Si-0

I R2 (in the above formula (X), R1 and R2 each independently represent a hydrogen atom, an alkyl group, an aralkyl group, and an aromatic hydrocarbon group). In the above formula (X), R1 and R2 each independently represent a hydrogen atom or an alkane. Base, anthracene group and aromatic smoke base. Examples of the alkyl group include an alkyl group having a carbon number of 1 to 8, and examples thereof include an anthracenyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, a tert-butyl group, a pentyl group, a hexyl group, and a heptane group. Base, octyl, etc. Examples of the aromatic hydrocarbon group include an aromatic hydrocarbon group having 6 to 18 carbon atoms, and examples thereof include a phenyl group, a naphthyl group, an anthracenyl group, a phenanthryl group, a tetrahydronaphthyl group, a terphenyl group, and a chopstick base. , mercapto, fluorenyl, fused pentaphenyl, methylphenyl, benzyl, tolyl, alkylnaphthyl and the like. Examples of the aralkyl group include an aralkyl group having a carbon number of 7 to 30, and examples thereof include a benzyl group, a phenylethyl group, a phenylpropyl group, a phenylisopropyl group, and a phenylbutyl group. • Naphthyl fluorenyl, naphthylethyl, naphthylpropyl, naphthylbutyl, and the like. The polymer compound containing a decane bond in the present invention may further contain two or more repeating units represented by the above formula (X). In the above formula (X), a polymer compound represented by the following formula (XI) is more preferable in terms of thermal stability. [Chemical 2] 099107425 9 (XI) 201042002 ch^ H3C—S—— 〇

I

[T 1 -〒h3 - 1 1*1.5 Λ 〇* v/^ I 1 CH3 m 1 R2 ^ ch3

(In the above formula (XI), R is the same as the above formula (x). m and n represent an integer of 〇 25 25 (10). Here, in the above formula (XI), R 2 is the same as the above formula (χ). Furthermore, when ^ is 2 or more, the plurality of y contained in one chain may be different from each other. In the polymer compound of the present invention, the reason why the polymer compound containing a siloxane bond exhibits the effects of the present invention is presumed as follows. That is, the composition for an organic electroluminescence device of the present invention contains a composition of a light-emitting material, a charge transport material, and a solvent. In the case where the composition is wet-formed, the low molecular compound tends to form agglomerates at the time of film formation and drying. It is speculated that the aggregate will have an influence on the characteristics of the element. On the other hand, the structure of the polymer compound containing a siloxane bond is a helical structure. In other words, by including a polymer compound containing a 7-oxo bond in a helical structure, a low molecular compound is appropriately dispersed in the structure of the polymer compound, thereby suppressing the condensation of the low molecular compound, and thus it is presumed that there is a low molecular compound. The influence of the agglomeration on the component hiding, the phase domain (four) degree of pure molecular compound can improve the component characteristics. Specific examples of the polymer compound include the following, but the invention is not limited thereto as long as the effects of the present invention are not impaired. For example, dimethyl oxazepa oxime, methyl thioxanthene, methyl phenyl 099107425 201042002 methyl hydrogen _ oxygen fire, ring county Wei 1 (four) upgrade (four) purpose to reform stone Xi oxygen oxy 、, fluoroalkyl-based modified money, poly-wei oil, etc. Μ Μ 改 贝 夕 夕 又 又 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为 作为The death is from the surface of the polymer compound represented by the following formula (XX), which is more than [Chemical 3] - C-C-

1 I R4 R6 L "" xx > (in the above formula (XX), R3 to 6 VIII. R is independent of each other, and represents a hydrogen atom, an alkyl group, an arylalkyl group, and an aromatic hydrocarbon group. Among them, r3~ At least one of r6 represents an aromatic hydrocarbon group having a carbon number of 6 or more. Here, 'as a burnt group, an arylalkyl group, and an aromatic hydrocarbon group, it is preferably a polymer compound containing a ruthenium-oxygen bond as a ruthenium. The substituents are listed as the same substituents as the substituents. The aromatic hydrocarbon group having at least one of R3 to R6 is substituted with an aromatic hydrocarbon group having a carbon number of 6 to 18, and examples thereof include a phenyl group, a naphthyl group, a fluorenyl group, a phenanthryl group, and a fourth group. Hydronaphthyl, triphenyl, chopstick, fluorenyl fluorenyl, fluorenyl, nonylphenyl, phenyl, decylnaphthyl and the like. Furthermore, it is presumed that by replacing at least one of R3 to R6 with an aromatic hydrocarbon group, the polymer compound represented by the formula (XX) can function as a steric hindrance to form a helical structure B to 099107425 11 201042002, and thus the polymer The increase in the free volume retained in the molecule of the compound can exhibit a coagulation-suppressing effect of the low molecular compound. The polymer compound of the present invention may contain two or more kinds of repeating units represented by the above formula (XX). The carbon-carbon saturated bond of the formula (XX) is also chemically stable in the same manner as the decane bond, and has a small adverse effect on the characteristics of the device, so that it is a preferred structure. In the same manner as the polymer compound represented by the formula (X), the polymer compound represented by the formula (X) has a helical structure, so that aggregation of the luminescent material and/or the charge transporting material can be suppressed. Specific examples of the polymer compound include the following, but the invention is not limited thereto as long as the effects of the present invention are not impaired. For example, alkylstyrene such as polystyrene, polydecylstyrene, polyethylstyrene, polypropylstyrene or polybutylstyrene; other polyolefins, polyphenylene and the like can be given. The weight average molecular weight (Mw) of the polymer compound of the present invention is usually 1,000 or more, preferably 10,000 or more, and usually 1,000,000 or less, preferably 500,000 or less. When the right side is in the above range, the solvent in the composition for an organic electroluminescence device exhibits moderate solubility, and therefore the storage stability of the composition is good. The glass transition temperature of the polymer compound of the present invention is usually 8 Å. 〇 Above' is preferably l 〇 (above TC, more preferably 130. (: above. Again, glass 099107425 12 201042002, the higher the transfer temperature is) the aggregation inhibition effect of the low-molecular compound in the heating step when the component is fabricated The better, there is no special upper limit, usually i8 (rc or less. • The above-mentioned range _' is low molecular weight in the heating step when the device is fabricated, and the aggregation suppression effect of the compound is good' and the component is driven It is preferable that the deformation of the polymer compound of the present invention in toluene at normal temperature and normal pressure is usually 0.02% by weight or more, preferably 〇·2% by weight or less. The upper limit of the saturated solubility of the polymer compound is 50% by weight. The polymer compound having the saturated solubility in the above range is lower than the composition S. The 77-mer compound has a sufficiently large saturated solubility, so that the low-molecular compound starts to precipitate first after drying after film formation. At this time, the low-molecular compound precipitated as in the above L enters the polymer compound in the composition. In the spiral structure, it is preferable to suppress the effect of agglomeration between the low molecular compounds, and the polymer compound contained in the composition for organic electroluminescence is represented by the concentration of the phase solid phase. 1% by weight or more, preferably 5 parts by weight or more, more preferably 10% by weight or more, and usually less than 50% by weight, more preferably 4% by weight or less, still more preferably 3% by weight or less. When it is in the above range, it exhibits a moderate compatibility with the low knife component of the composition for an organic electroluminescence device, and therefore it is preferable to improve the light-emitting characteristics of the device. 099107425 13 201042002 [Tackification Coefficient] The viscosity increasing coefficient of the invention is calculated according to the following {method of calculating the viscosity increasing coefficient}. {Method for calculating the viscosity increasing coefficient} After measuring the viscosity of the composition (10 g) before concentration, the pressure is dried under reduced pressure, and the composition is determined by measurement. The weight of the material was concentrated to 1/2 (5 g), i/3 (3.3 phantom, i/4 (2.5 g).

The horizontal axis X is a multiple of the above-mentioned concentration concentration (1, 2, and 3), and the vertical axis y is defined as a viscosity. The curve obtained by dotting the measurement data is approximated by an exponential function, and is expressed by the following formula (1). The form calculates the value. y = β ixexp(nx(x^ 〇) (In the above formula, '~ is the viscosity of the composition before concentration, n is the viscosity increasing coefficient) The method for measuring the viscosity is not particularly limited, and for example, it can be used as the Ε type The meter (manufactured by Toki Seiki Co., Ltd.) was used to measure the viscosity of the material.

The amount of money at the time of measurement is 5. Hey. In the case of fine measurement, the fascination and the secret system are carried out within the scope of the transfer.疋W lOOrpm (About η) The viscosity increasing coefficient η calculated by the formula (1) is 0.3 or more, more preferably 〇4 or more, and is 3 or less, more preferably 2 or less. Usually 0.2 or more, preferably 'normally 4 or less' is better 099107425 201042002 Right is within the above range, then the flow of solute in the different warriors _, effect = surface electricity to make the composition easy Suppressed uniformity [not easy to apply to the coating film:: flatness is sufficient. Further, the surface roughness of the film surface is not affected. When the above-mentioned material coefficient is in the above range, the concentration of the polymer contained in the group for the organic electroluminescence device can be made equal to or greater than or equal to or less than the weight of the solid content. Hang 50 b

"The effect of the present invention can be further exerted by the group j of the organic electroluminescence device of the present invention having a coefficient η of 2 or more. The reason for this is presumed to be as follows. That is, the value of the right viscosity increasing coefficient η is in the above range. In the case, the flow caused by the change in the surface tension accompanying the evaporation of the local solvent or the solvent diffusion phenomenon is offset by the viscosity, so that the flow inhibition of the solute contained in the composition for the organic electroluminescence device is liable to occur. It is presumed that when the flow suppressing effect is produced, segregation or partial solute of the solute in the film can be suppressed, so that the uniformity of the film formed by the wet film forming method using the composition is excellent. [Organic electroluminescence of the present invention] Component and composition of the composition for a device of the present invention The composition for an organic electroluminescence device of the present invention further contains a luminescent material and a charge transporting material in addition to the specific polymer compound, and is preferably contained in the form of a low molecular compound. The molecular weight of the low molecular compound of the present invention is usually 10,000 or less, preferably 5,000 or less, more preferably 4,000 or less, and even more preferably 3,000 or less. Further, 'usually 100 or more, preferably 200 or more, more preferably 300 099107425 15 201042002 or more 'more preferably in the range of 400 or more. {Luminescent low molecular compound} Composition of the organic electroluminescent element of the present invention The luminescent low molecular compound is preferably a low molecular weight compound. The luminescent low molecular compound is not particularly limited as long as it is a compound having a luminescent property of a single molecular weight, and a known material can be used. It may be a fluorescent luminescent low molecular compound or a grading low molecular compound. From the viewpoint of internal quantum efficiency, a disc photoluminescent low molecular compound is preferred. The solubility is preferably such that the symmetry or rigidity of the molecule of the luminescent low molecular compound is lowered, or a lipophilic substituent such as an alkyl group is introduced. The following is a description of the fluorescent luminescent low molecular compound in the luminescent low molecular compound. Example 'But the fluorescent luminescent low molecular compound is not limited to the following examples. I) As a fluorescent luminescent material that emits blue light (Blue fluorescent material-material) 'Examples include naphthalene, anthracene, anthracene, anthracene, coumarin, chopsticks, p-bis(2-phenylphenyl)benzene, and the like. As a fluorescent material (green fluorescent material) for emitting green light, for example, an aluminum complex such as a quinacridone derivative, a coumarin derivative, or Al(C9H6NO)3 may be mentioned. For example, as a fluorescent material that emits yellow light (yellow camping light illuminating material 099107425 16 201042002), for example, rubrene, perimid〇ne derivatives, etc. are cited. For the photoluminescent material (red fluorescent luminescent material), for example, DCM (4-(dicyanoindenyl)_2-methyl«p-dimethylaminophenylethylidene)_4Η·η is 啥a compound, a benzopyrene derivative, a rhodamine organism, a benzothiazepine derivative, an azabenzothizone or the like. As the county illuminating (4), for example, (4) may be selected from the long-term chronological period (hereinafter, as long as there is no special supplementary explanation, referred to as the "periodic table", it refers to the long-period periodic table). An organometallic complex of a metal. As the metal selected from Groups 7 to U of the periodic table, nails, magnets, handles, silver, ruthenium, iron, ruthenium, platinum, gold, and the like are preferable. As a ligand of the complex, it is preferred that the (hetero)aryl group is a bite ligand, the (hetero)aryl group is a (hetero)aryl group such as a sial ligand, and the ratio is more than a saliva or a morphine. A ligand formed by a combination of lin and the like, and the tetra(4) is a phenyl (8) gamma or phenyl fluorene ligand. The so-called (hetero) aryl group means an aryl group or a heteroaryl group. #为鳞光发光材料' Specific examples include: tris(2.phenyl(tetra)pyridinium), tris(2-phenylpyridinium)phosphonium, tris(2-phenylpyridine)palladium, bis(2-phenylpyridine) Platinum, tris-(2-phenylpyridinium), bis(2-phenylpyridinium) ruthenium, octaethylplatinium porphyrin, octadecyl platinum porphyrin, octaethylpalladium porphyrin, octaphenyl palladium Wait. Further, the above-mentioned light emission (4) may be used only for secrets, or may be used in combination of two or more types. Specific examples of the luminescent low molecular compound are disclosed below, but the present invention is not limited to 099107425 17 201042002. Furthermore, Hex means hexyl. [Chemical 4]

099107425 18 201042002 [Chemical 5]

{Charge transporting low molecular compound} The composition for an organic electroluminescence device of the present invention preferably contains a charge transporting low molecular compound as a low molecular compound. In the present invention, the charge transporting low molecular compound may be used alone or in combination of two or more. In the light-emitting layer, it is preferred to use a light-emitting material as a dopant material, and a carrier low molecular compound is used as a host material. Charge Charge The charge transporting low molecular compound is not particularly limited as the compound used in the light-emitting layer of the conventional organic electroluminescence device, and is particularly preferably used as a host material of the light-emitting layer. Specific examples of the charge transporting low molecular compound include a compound, a mosquito-based compound, a phthalocyanine compound, an oligomeric a-cea-based compound, a polyphene-based compound, and a benzyl group. a phenyl-based compound, a compound obtained by linking a tertiary amine to a first-order sulfonium, an anthraquinone-based compound, a decazane-based compound, a compound of a compound, a phosphamethene-based compound, and a quinacridone. A compound, an anthraquinone compound, an anthraquinone compound, a squat compound, a mouth-biting compound, a phenanthrene compound, a gas diazole compound, a thiazole compound, or the like. For example, Μ, · bis [N-n-naphthyl)-N-phenylamino]biphenyl represents two aromatic amines which are substituted with a tertiary amine and two or more condensed doughs are substituted on the nitrogen atom. An amine-based compound having a star-shaped structure such as an amine (Japanese Patent Laid-Open No. Hei 5-234681), 4,4', 4"-tris(1-naphthylphenylamino)triphenylamine (J, Lumin. , 72-74, 985, 1997), aromatic amine compounds containing tetramers of triphenylamine (Chem c〇mmun, 2Π5, 1996), 2, 2|, 7, 7' _Four (diphenylamino)_9,9,_spiral singular s (Synth. Metals, Vol. 91, p. 209, 1997, carbazole biphenyl and other carbazole compounds, 2_(4 _Biphenyl)_5_(p-butylphenyl)-1,3,4-oxadiazole (tBu_PBD), 25•bis(1naphthyl)134 oxadiazole (BND) and other gas diazole compounds , 2,5_bis(6,2,2,|_bipyridyl))_1, thiazole compound such as p-Phenyl-3,4-diphenylthiazole (PyPySPyPy), 4,7_ben Base 1,10-Nianlin (3?]1611,匕&1;11〇卩1^113]11;111*〇111^), 2,9-dimercapto 4,7 base '1,1 〇_〇非淋(BCP , bathocuproin, etc., Parkine compound, etc. M T discloses a specific example of the charge transporting low molecular compound, but the present invention is not limited thereto. Further, Bu represents a butyl group. 099107425 20 201042002 [Chem. 6]

{Organic solvent} The composition for an organic electroluminescence device of the present invention usually further contains an organic solvent. The solubility parameter (Hildebrand Solubility Parameter) of the organic solvent contained in the composition for an organic electroluminescence device of the present invention is usually 8 cal/cm 3 or more, preferably 8.5 cal/cm 3 or more, and is usually 11 cal. Below /cm3, it is preferably 10.5 cal/cm3 or less. Further, as the solubility of the organic solvent, the luminescent low molecular compound and the charge transporting low molecular compound are usually dissolved in an amount of 0.01% by weight or more, preferably 0.05% by weight or more, more preferably at normal temperature and normal pressure. It is dissolved in 0.1% by weight or more. Specific examples of the organic solvent are given below, but as long as the effects of the present invention are not impaired, 099107425 21 201042002 is not limited thereto. For example, a hydrocarbon such as n-decane, cyclohexane, ethylcyclohexane, decahydronaphthalene or bicyclohexyl bromide; a stupid, xylene, trimethylbenzene, cyclohexylbenzene, tetrahydrogenated product; Aromatic hydrocarbons such as naphthalene; gas-benzene, dichlorobenzene, tri-benzene, etc., such as 1,2-dimethoxybenzene, u•dimethoxybenzene, benzene, phenyl An aromatic ether such as hydrazine, 2-methoxytoluene, 3-methoxytoluene, 4-methoxytoluene, a-methylanisole, 2,4-dimethylphenyl ether, diphenyl ether Benzene acetate, phenylacetate, benzoic acid, benzoic acid, ethyl benzoate, benzoic acid, benzoic acid, benzoic acid, butyl benzoate, etc. g with | hand _ and other alicyclic ketones; cyclohexanol, cyclooctanol and other cycloaliphatic alcohols; methyl ethyl _ butyl 阙 special aliphatic class ®; butanol, hexanol and other aliphatic alcohols Classes, such as ethylene glycol dimethyl ketone, ethylene glycol diethyl _, propylene glycol small monomethyl ether acetate (PGMEA) and other aliphatic ethers. Among them, preferred are alkane hydrocarbons and aromatic hydrocarbons. These solvents may be used singly or in combination of two or more kinds in any combination and in any ratio. Further, in order to obtain a more uniform film, it is preferred to evaporate the solvent from the liquid film immediately after film formation at an appropriate speed. Therefore, the boiling point of the solvent is usually rib c or more, preferably 10 (rc or more, more preferably 12 Å. Further, ## is 27 GC or less, preferably 25 (TC or less, more preferably The point of the Buddha is 23 〇 ° C or less. The effect of the present invention is not significantly impaired, and the amount of the solvent used is arbitrary, and is preferably 099107425 22 201042002 with respect to 100 parts by weight of the composition for an organic electroluminescence device. More preferably, it is more than 5 parts by weight, more preferably 8 parts by weight or more, further preferably 99.95 parts by weight or less, more preferably 99.9% by weight or less, particularly preferably 99.8 parts by weight or less. If the content is less than the lower limit, the viscosity may become too high, and the film forming workability may be lowered. On the other hand, if the upper limit is exceeded, the film obtained by removing the solvent after film formation may be present. When the thickness is insufficient, it is difficult to form a film. In the case where two or more kinds of solvents are used in combination as a composition for an organic electroluminescence device, the combination of the solvents § 10 satisfies the range. In order to improve film formability, the organic electroluminescence of the present invention The composition for a part may contain various additives such as a leveling agent or an antifoaming agent. {Other materials} Further, as a composition which can be contained in the organic electroluminescent device of the present invention, a surfactant and a viscosity adjustment are mentioned. Agent, filler particles, etc. As the surfactant, for example, anionic, cationic, non-ioning, and amphoteric materials can be used, and the possibility of adversely affecting electrical characteristics is low. It is preferable to use a non-ionic interface-active agent. Examples of the anionic surfactant include a sulphur-based sulfate-based surfactant such as "Emal 10" (made by Kao A Division), and " NB_L" and other naphthalene naphthyl phosphate surfactants, and special polymer surfactants such as "η·%-L-18" and "Homogenol L_丨〇〇". It is preferable that it is a special polymer type surfactant, and it is more preferable that it is a poly-alkaline type polymer type surfactant. The cationic surfactant is, for example, "Acetamin 24" ( Kao Corporation An alkylamine salt-based surfactant such as "manufactured"), and a four-stage ammonium salt-based surfactant such as "Quartamin 24P" or "Quartamin 86W". Among them, a 4-grade ammonium salt-based surfactant is preferred. More preferably, it is a stearyl trisyl-based salt-based surfactant. Further, as the non-ionic surfactant, "SH8400" (manufactured by Toray Silicone Co., Ltd.) and "KP341" (manufactured by Silicone Co., Ltd.) are mentioned. ) Fluoride-based surfactants, "FC430" (manufactured by Sumitomo 3M), "F470" (manufactured by Otsuka Ink Chemical Industry Co., Ltd.), and "DFX-18" (manufactured by Ne〇s) An active agent, a polyoxyethylene surfactant such as "Emulgen 104P" (manufactured by Kao Corporation) or "Emulgen A60". Among these, 'preferable is a polyoxynoxy surfactant, and more preferably a so-called polycondensation having a side chain of a polyether group or an aralkyl group added to a polydimethylmercapto alkane. Ether-modified or aralkyl-modified polyoxo-based surfactant. The surfactant may be a combination of two or more kinds, and examples thereof include a polyfluorene-based surfactant/fluorine-based surfactant, a polyfluorene-based surfactant, a special polymer-based surfactant, and a fluorine-based surfactant. / Combination of special polymer surfactants, etc. Among them, a polyfluorene-based surfactant/fluorine-based surfactant is preferred. In the combination of the polyoxymethylene surfactant/fluorine surfactant, a polyether modified polyoxon surfactant/oligomer type fluorine surfactant or the like can be given. Specifically, for example, "TSF 4460" (GE Toshiba 099107425 24 201042002)

"Manufactured by Silicone" / "DFX-18" (manufactured by Neos), "ΒΥΚ-300" (manufactured by BYK Chemie) / "S-393" (manufactured by Seimichemical), "KP340" (manufactured by Shin-Etsu Silicone) / "F-478" (manufactured by Otsuka Ink Co., Ltd.), "SH7PA" (manufactured by Toray Silicone) / * "DS-401" (manufactured by Daikin Co., Ltd.), "L-77" (manufactured by Nippon Unicar) / FC4430" (manufactured by Sumitomo 3M). The amount of the surfactant of the surfactant for the composition for an organic electroluminescence device of the present invention is usually 0.01% by weight or more, preferably 0.05% by weight or more, and usually 1% by weight or less, preferably 0. 2% by weight or less. Further, in order to adjust the viscosity, a viscosity adjusting agent may be contained. Examples of the viscosity adjuster include high molecular weight thickeners such as polystyrene, polyaminoethyl phthalate, and polyamidene, and solvent-based diluents such as high-boiling aromatic or ketone or ester. The content of the dot modifier of the composition for an organic electroluminescence device of the present invention is usually 0.01% by weight or more, preferably 0.5% by weight or more, and 〇 is usually 1% by weight or less, preferably 〇. 2 weight ° /. the following. Further, in order to adjust the coating film thickness and electrical characteristics, it may contain filler particles. The "filling particles" may, for example, be an inorganic pigment such as organic (iv), shitian or titanium oxide such as phthalocyanine or awake. The content of the filler of the composition for an organic electroluminescence device of the present invention is usually 0.01% by weight or more, preferably 0.5% by weight or more and usually 1% by weight or less, preferably 0.5% by weight. the following. [Physical properties and the like of the composition for an organic electroluminescence device] 099107425 25 201042002 The surface tension of the composition for an organic electroluminescence device of the present invention is usually 25 mN/m or more, preferably 28 mN/m or more. It is usually 40 mN/m or less, preferably 35 mN/m or less. If it is within the above range, the ejection stability at the time of ink jet or nozzle printing is good. Further, the composition for an organic electroluminescence device of the present invention has a boiling point of usually 150 ° C or higher, preferably 170 ° C or higher, and usually 270 ° C or lower, preferably 250 ° C or lower. If it is within the above range, the uniformity of discharge stability and coating drying is good. Further, the vapor pressure of the composition for an organic electroluminescence device of the present invention is usually 1 Pa or more, preferably 10 Pa or more, and usually 200 Pa or less, preferably 100 Pa or less. If it is within the above range, the uniformity of discharge stability and coating drying is good. Further, the specific gravity of the composition for an organic electroluminescence device of the present invention is usually 0.8 or more, preferably 0.85 or more, and usually 1.0 or less, preferably 0.95 or less. If it is within the above range, the ejection stability at the time of ink jet or nozzle printing is good. [Use] The composition for an organic electroluminescence device of the present invention is particularly preferably used in a wet film formation method of 099107425 26 201042002. The wet film forming method of the present invention refers to a spin coating method, a dip coating method, a die coating method, a bar coating method, a knife coating method, a roll coating method, a spray coating method, a capillary coating method, and an object. A method of forming a film using a composition containing an organic solvent, such as a spray method, a nozzle printing method, a screen printing method, a gravure printing method, a quick-drying printing method, or a lithographic printing. As for the ease of patterning, a die coating method, a roll coating method, a spray coating method, a composition jet method, and a quick-drying printing method are preferred. In particular, it is preferable to use an inkjet method and a nozzle printing method because it is easy to perform wet film formation in a region which is easily divided by the bank. Further, the composition for an organic electroluminescence device of the present invention is particularly preferably used for forming a light-emitting layer in an organic electroluminescence device. <Manufacturing Method of Composition for Organic Electroluminescence Device of the Present Invention> An example of a method for producing a composition for an organic electroluminescence device of the present invention is as follows, but the present invention is not limited thereto. In particular, the composition for an organic electroluminescence device of the present invention can be produced by using the following methods, particularly a combination of preferred methods, and the like. - [Dissolving step in the production method of the composition for an organic electroluminescence device of the present invention, usually including a dissolution step. The mixture was stirred with a mixture of solids in an organic solvent until the solid suspension could not be visually confirmed. The composition for an organic electroluminescence device of the present invention can be produced by dissolving and dissolving a low-molecular-weight compound 099107425 27 201042002 in an organic solvent. The rheology modifier refers to a material added to change the viscoelastic behavior of the solution, and examples thereof include an inorganic material such as alumina or clay, and a polymer described in the above (non-luminescent polymer). Or an organic material such as an oligomer, wherein the composition for the organic electroluminescence device is preferably a rheology modifier of a poly-sigma system, that is, the above-mentioned (non-light-emitting polymer) The polymer. The rheology modifier has a molecular weight of usually 1,000 or more, preferably 10,000 or more, and is usually 1,000 or less, preferably 500,000 or less. (Dissolution conditions) • The temperature in the dissolution step is usually 3 (TC or more, preferably 5 (TC is more than 100 ° C or less), preferably 80 ° C or less. Right is the above range In the case of the internal solvent, the concentration of the organic solvent may not be changed, or the solubility may be lowered, and the desired concentration is obtained, which is preferable in this respect. When the solute is dissolved in the solution, the mixture can be stirred while stirring. The dissolution rate is usually 10 rpm or more, preferably 20 ipm or more, and is usually 2 rpm or less, preferably 1 rpm or less. The environment is not particularly limited as long as the effect of the present invention is not impaired, and an inert gas is exemplified. Examples of the inert gas include nitrogen gas and argon gas, and nitrogen gas is preferred in terms of ease of handling. 099107425 28 201042002 [Filtering step] It is preferred to carry out the filtration after the dissolution. It is preferably carried out; in the case where the dissolution step is selected immediately after the dissolution step is cooled to the storage temperature), it is filled in the storage. Rong ^ (3 hot self-contained capacity The filter is removed from the device and is ready for use. 1 or its special group The absolute overshoot accuracy of the filter used in the transition of the present invention is usually 〇5 〇 or less, preferably 0.1 // m or less. <Organic Electroluminescence Element> The layer structure of the organic electroluminescence element produced by using the composition for an organic electroluminescence device of the present invention, a general method for forming the same, and the like will be described below with reference to Fig. 1 . 1 is a schematic view showing a cross section of a structural example of the organic electroluminescence device of the present invention. In Fig. 1, 1 denotes a substrate, 2 denotes an anode, 3 denotes an electric cavity injection layer, and 4 denotes a hole transport layer, 5 Indicates the bank, 6 indicates the light-emitting layer, '7 indicates the cathode, 8 indicates the electron injection layer, 9 indicates the electron transport layer, and I1 indicates the electron blocking layer. • [Substrate] The substrate becomes the support for the organic electroluminescent device. You can use stone and glass plates, metal plates or metal foils, plastic films or sheets, etc. The special ones are glass plates, or transparent synthesis of polyester, polydecyl acrylate, polycarbonate, polyfluorene, etc. Resin board. Use synthetic tree In the case of a grease substrate, it is necessary to pay attention to the gas property of 陴099107425 29 201042002. If the gas barrier property of the substrate is too small, there is a case where the organic electroluminescence device is deteriorated due to the ruthless engraving through the substrate, which is not preferable. A method of providing a dense oxidized oxide film or the like on at least one surface of a synthetic resin substrate to ensure gas barrier properties is also one of preferable methods. [Anode] The anode serves as a function of injecting a hole into a layer on the side of the light-emitting layer. The anode is usually made of a metal such as aluminum, gold, silver, nickel, palladium or platinum, a metal oxide such as an oxide of indium and/or tin, a copper iodide or the like, a carbon, or a poly(3-methyl). A conductive polymer such as thiophene, polypyrrole or polyaniline is used. The formation of the anode is usually carried out by a sputtering method, a vacuum deposition method, or the like. Further, when a fine particle such as silver or a fine particle such as copper iodide, a carbon black, a conductive metal oxide, or a conductive polymer fine powder is used to form an anode, it is dispersed in a suitable adhesive lyophile solution. And coating on the substrate whereby an anode can also be formed. Further, in the case of using a conductive polymer, an anode can be formed by electrolytically polymerizing a film directly onto a substrate or by coating a conductive polymer on a substrate (Appl. Phys. Lett., 60, 2711) Page, 1992). The anode pass system has a single layer structure, and a laminated structure including a plurality of materials may be formed as needed. The thickness of the anode varies depending on the desired transparency. In the case where transparency is required, the transmittance of visible light is usually set to 4 60% or more, preferably 〇/° or more at 5 Hz, and the thickness of the anode is usually 5 nm or more, 099107425 30 201042002 is preferably i 〇 nm or more, and is usually 'less than 1 〇〇〇 nm, and is transmitted below 500 nm. When the 疋 ^ 4 of g is opaque, the thickness of the anode is the thickness of the thickness, and the thickness of the 1% is 庶 • , ^ _ , can be / and the substrate is the same. Further, a different conductive material may be laminated on the 1% electrode. In order to remove the adhesion to the anode, adjust the free potential, and improve the hole injection, it is better to catch the door. « ^ Ultraviolet (UV) / oxygen treatment on the surface, or oxygen, animal 1) Six oxygen. 虱虱 Plasma treatment. 〇 [Current injection layer] The hole injection layer is from the anode to the anode. The layer of the handle transport hole is usually formed in the shape of the hole injection layer of the present description. ^ m,, a method can be vacuum evaporation method, wet film formation method, sub-heat special restriction, # In terms of Su Shi, for the low dark point of 4 I 7 cattle, the preferred method is to form a film and a human layer. The film thickness of the injection layer of the zoelectric hole is usually 5 Å, and it is usually more than the coffee, preferably around. Preferably, the thickness of the layer below 500 nm} {forming the electric feed by the wet film formation method to form the material of the electric hole injection layer by wet film formation and the case of appropriate entry layer The group 戍 戍 戍 ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电The lower layer layer forming composition was applied to a film of a relatively high temperature of 099107425 as an anode, and dried in 201042002 to form a hole injection layer. (Cone transporting compound) The hole injecting layer forming composition usually contains a hole transporting compound and a solvent as constituent materials of the hole injecting layer. When the hole-transporting compound is a compound having a hole transporting property generally used for a hole injection layer of an organic electroluminescence device, it may be a polymer compound such as a polymer or a low molecular compound such as a monomer. Preferred are polymer compounds. As the hole transporting compound, a compound having a free potential of 4.5 eV to 6.0 eV is preferred from the viewpoint that the charge from the anode to the hole injection layer is injected into the barrier. Examples of the hole transporting compound include an aromatic amine derivative, a phthalocyanine derivative, a phthalocyanine derivative, an oligomeric 11 propenophene derivative, a poly σ-phene derivative, and a benzyl phenyl derivative. A compound obtained by linking a tertiary amine to an S group, an anthracene derivative, a decane derivative, a decylamine derivative, a phosphonamine derivative, or an anthracene.丫 α-butanone derivatives, polyaniline derivatives, polyfluorene π derivatives, polyphenylene acetylene derivatives, polyphenylene acetylene derivatives, polyphthalocyanine derivatives, polyfluorene derivatives, carbon, and the like. Further, in the present invention, the derivative, for example, an aromatic amine derivative is a compound containing an aromatic amine itself and a compound having an aromatic amine as a main skeleton, and may be a polymer or a single body. The hole transporting compound used as the material of the hole injection layer may contain either one of the above compounds alone or in combination of two or more. In the case of containing two kinds of hole transporting compounds on 099107425 32 201042002, the combination thereof is arbitrary, and preferably one or two or more kinds of aromatic tertiary amine polymer compounds, and quinones or 2 The above other holes are used in combination with the compound. In the above examples, in terms of the amorphousness and the transmittance of visible light, it is difficult to use a linseed amine compound. Here, the term "aromatic tertiary amine compound" means a compound having an aromatic tertiary amine structure and also includes a compound having a group derived from an aromatic tertiary amine. 〇芳(4) The type of the tertiary amine compound has no special function, and the uniform luminescence produced by the smoothing effect of the silk surface is more preferable. The polymer compound having a weight average molecular weight of 1,000 or more and 1000 Å or less (repeating unit) Connected polymeric compounds). A preferred example of the aromatic tertiary amine polymer compound is a polymer compound having a repeating unit represented by the following formula (1).

iD (in the formula (1), 'Arl and Ar2 are each independently, and represent an aromatic hydrocarbon group which may have a substituent or an aromatic heterocyclic group which may have a substituent. Ar3 to Ar5 represent a material group which may have a substituent or An aromatic heterocyclic group which may have a substituent. γ represents a linking group selected from the group consisting of the following groupings.

In Ar1 to Ar5, the two groups bonded to each other on the same circumference can also be bonded to each other by 099107425 33 201042002 to form a ring. [Chemical 8] ο „ II 3 -Ar8-S-Ar9- II ο

Ar11

Ar12——-Ar6—C—Ar7—— II ο f Ar13—C—C—Ar14— II Η Si I II It 0 Ο I R6 0 II Ar16 II —c— ——— I ——p— II 0

C-Ar15-C

II II oo (In the above formulas, Ar6 to Ar16 are each independently represented by an aromatic hydrocarbon group which may have a substituent or an aromatic heterocyclic group which may have a substituent. R5 and R6 each independently represent a hydrogen atom or an arbitrary substituent. The aromatic hydrocarbon group and the aromatic heterocyclic group of Ar1 to Ar16 are preferably derived from a benzene ring, a naphthalene ring, or a phenanthrene in terms of solubility, heat resistance, and hole injection/transportability of the polymer compound. The ring, the α-ceto ring, and the σ ring-based ring are more preferably a group derived from a benzene ring or a naphthalene ring.

The aromatic hydrocarbon group and the aromatic heterocyclic group of Ar1 to Ar16 may have a substituent. The molecular weight of the substituent is usually 400 or less, and preferably 250 or less. The substituent is preferably an alkyl group, an alkenyl group, a calcined oxygen group, an aromatic hydrocarbon group or an aromatic heterocyclic group. When R5 and R6 are arbitrary substituents, examples of the substituent include an alkyl group, a dilute group, an alkoxy group, a sulphur group, a sulphur group, and an aromatic hydrocarbon. 099107425 34 201042002 , an aromatic heterocyclic group, and the like. Specific examples of the aromatic tertiary amine polymer compound and the compound having the .L. <• repeating unit represented by the formula (I) include • % compound described in Ώ International Publication No. 2005/089024 Preferably, the 3,4-ethylenedioxythiophene is used as a polysodium benzoate in the same amount of polystyrene citrate. Conductive polymer which is polymerized, and the end of the polymer is blocked by methacrylate or the like. In the hole injection layer formation group, the concentration of the hole transporting compound in the warfare is the effect of the concentration of the hole, and in terms of the thickness of the film, usually

Tong Dan. /, L 々 horse 0.01% by weight or more, preferably (U weight 1 /. or more, more preferably 〇 5

n/ • More than 5% by weight, and usually, 70% I / 〇 or less, preferably 6 〇 weight # > - ° 乂 ’ is more preferably 50% by weight or less.

If the concentration is too large on the right side of the G, it may cause unevenness in μ, and if the right is too small, defects may occur in the hole in the film-forming layer. (Electron-accepting compound) The hole injecting layer preferably contains an electron-accepting compound, and therefore the preferred composition for the layer-in-layer also contains an electron-accepting compound. As the electron accepting compound, a compound having an oxidizing ability and having an ability to receive an electron from the above-mentioned hole-transporting compound is preferable. Specifically, a compound having an electron affinity of 4 eV or more is preferable, and a compound of: 099107425 35 201042002 The electron accepting compound 'is, for example, a salt selected from the group consisting of a triarylboron compound, a metal halide, a Lewis acid, an organic acid, a phosphonium salt, an arylamine and a metalloid, and an arylamine and a Lewis acid. Any of a group of two or more compounds in the group consisting of salts. Further, specifically, an organic group-substituted sulfonium salt such as 4-isopropylmethyl-phenylphosphonium tetrakis(pentafluorophenyl)borate or triphenylsulfonium tetrafluoroborate (International Publication No. 2005/ No. 089024). Gasification Heqing Japanese Patent Special Kaiping U_25 biliary bulletin), peroxydisulfate money and other inorganic compounds of the southern atomic price; tetracyanate and other green compounds, three (five gas phenyl ships) In the case of the above-mentioned electronic accepting compound, the electron-accepting compound may be used alone or in any ratio of two or more. The compound can oxidize the hole-driving compound, so that the conductivity of the hole injection layer can be improved. The content of the electron-accepting compound relative to the hole-transporting compound is usually ο·1 mol% or more, preferably 1 mol. The amount of the ear is at least 1%, and is usually 1% by mole or less, preferably 4% by mole or less. (Solvent) It is preferred that at least one of the solvents contained in the composition for the hole injection layer is A solvent that dissolves the material of the hole injection layer. Μ Also, solvent The boiling point is usually 叱 or more, preferably 14 generations or more, more preferably 2G (TC: or more, usually s., preferably, below. c. If the boiling point of the solvent is too low, then _ The film is dried at a faster rate than 099107425 36 201042002, and the film quality is deteriorated. Further, if the boiling point of the solvent is too high, the temperature of the drying step becomes high, and the other layers and the substrate ι (for example, a glass substrate) are defective. In the case of the solvent, an ether solvent, an ester solvent, an aromatic hydrocarbon solvent, a guanamine solvent, etc. are mentioned. Specific examples of the ether solvent include, for example, an ether solvent. An aliphatic ether such as ethylene glycol dimethyl ether, ethylene glycol diethyl ether or propylene glycol-1-'monodecyl ether acetate (PGMEA); 1,2-dimethoxybenzene, 1,3- 〇 曱 曱 曱 、 苯 苯 苯 苯 苯 苯 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 An aromatic ether such as 4-dimethylanisole, etc. Further, examples of the ester solvent include phenyl acetate, phenyl propionate, decyl benzoate, and ethyl benzoate. An aromatic ester such as a propyl benzoate or a butyl benzoate, etc. Further, examples of the aromatic hydrocarbon solvent include indene, quinone, cyclohexylbenzene, and 3-isopropylbiphenyl. 1,2,3,4-tetradecylbenzene, 1,4-diisopropylbenzene, cyclohexylbenzene, decylnaphthalene, etc. Further, as the guanamine-based solvent, for example, ruthenium, osmium - dimethylformamide, hydrazine, hydrazine-dimethyl acetamide, etc. Further, dimethyl sulfoxide or the like may be used as a solvent. - Among the above solvents, it is preferred to dissolve The ability of the hole to inject the material of the layer (solvency), or a solvent having a higher affinity with the material, because the concentration of the composition for the hole injection layer can be arbitrarily set, and the efficiency of the film formation step can be prepared. A composition of excellent concentration. Further, one type of the solvent may be used, or two or more types may be used in any combination and in any ratio. 099107425 37 201042002 (Other components) The material of the hole injection layer may contain other components in addition to the hole transporting compound and the electron accepting compound as long as the effect of the present invention is not significantly impaired. Examples of the other components include various luminescent materials, electronically-wheeled compounds, binder resins, and coating improvers. Further, the other components may be used singly or in combination of two or more kinds in any combination and in any ratio. (Film Forming Method) 'This group is prepared by applying a composition for a hole injection layer, and then applying a wet film forming method to a layer (material is an anode) corresponding to the lower layer of the electric or limb layer. It is dried to form an electric/human layer. After coating, it is usually dried by heating or the like. In the case of heating, the method of twisting (4) does not have a significant effect on the hair, and there is no mosquito. Examples of the _plus_ segment include a clean oven, a hot plate, an infrared ray, a halogen heater, and a test wave irradiation. Among them, in order to uniformly supply heat to the entire film, it is preferred to clean the oven and the heating plate. In the case where the electroceramic phase (4) contains the square amine polymer of the present month, it is crosslinked after coating. In the case of forming a layer by a vacuum ore method, first, two or more materials are used in one or two or more kinds of materials (hole transporting compound, electron grafting compound (4)). When it is clear, add it to each of the hanging pins. Exhaust the inside of the vacuum container with a suitable vacuum pump until it reaches about IG.4 pa. Then, heat the hanging 099107425 38 201042002 pot (when two or more materials are used, heat each crucible), control the evaporation amount and evaporate (in the case of using two or more materials, separate burrs Evaporation] A hole injection layer is formed on the anode of the substrate placed opposite to the steel. Further, when two or more kinds of materials are used, a mixture of the above may be added to the crucible to heat and evaporate to form a hole injection layer. Ο

The film thickness of the main entrance layer of the hole is usually 5 nm or more, preferably 1 〇 or more, and 2, usually 10 〇 00 nm or less, preferably 5 〇〇 11 瓜 or less, and the right film thickness is over. Thin 'has the possibility that the hole can be insufficiently filled, and if it is too thick, there is a possibility that the resistance becomes high. Furthermore, the hole injection layer can be formed by stacking several layers of the rabbits: the layer can be set as a composite material (4), and the layer can be a layer containing different materials of the same [hole transport layer]. The wet formation method may be that the (four) traces may be such that the wet film forming layer reduces the dark spots, and the preferred hole transport layer is in the presence of the f layer. The layer may be formed on the anode in the absence of an electric layer and may be formed on the anode when the organic layer of the invention is present. to make. The first 70 pieces of soil can be used as a material for forming a hole-transporting layer of 099107425 for the hole-transporting layer. It is preferable to have a high hole transportability, 39 201042002 and can efficiently transport the hole of the injection hole. material. Therefore, it is preferable that the free potential is small, the refractory property of the light is high, the material of the hole is large, and the sample is excellent, and it is difficult to form an impurity at the time of manufacture and (4). Further, in many cases, it is in contact with the light-emitting layer. Therefore, it is preferable that the shape of the light-emitting layer is not reduced or the excitation compound is formed between the light-emitting layer and the efficiency is lowered. The material of the above-mentioned hole transport layer may be a material used as a hole transport layer == material, for example, as a hole injection layer, a spiro derivative, and (4): oyster An arylamine derivative, a biological (10) (10) derivative cyanine derivative, (4) a derivative, (4) a wheeled organism, a _.. a royal thiophene derivative, an anthracene aromatic derivative, a metal complex, and the like. Poly (four) butterfly organism, (iv) amine derivative, with == substance, derivative, poly-aryl derivative, aryl-containing derivative, polyarylacetylene derivative, phenanthrene derivative, poly(p-acetylene) derivative Things and so on. Any of the materials, domain polymers, block polymers or graft copolymers. Further, it is also a polyarylamine derivative or a poly(arylene derivative) which is preferably a polymer or a surface of the u-terminal portion and has three or more. The (tetra)ylamine derivative is preferably a polymer comprising a repeating unit of the formula 099107425 201042002 represented by the following formula. Particularly preferred is a polymer comprising a repeating unit represented by the following formula (II), and in this case, Ara or Arb may be different in each repeating unit. [Chemistry 9]

-/Ara-N-V I w (II)

(In the formula (II), Ara and Arb are each independently and represent an aromatic aryl group or an aromatic heterocyclic group which may have a substituent.) The aromatic hydrocarbon group which may have a substituent may, for example, be derived from a benzene ring. Naphthalene ring, anthracene ring, phenanthrene ring, anthracene ring, fused tetraphenyl ring, anthracene ring, benzofluorene ring, chopstick ring, extended triphenyl ring, anthracene ring, fluorene ring, ring, etc. a base of 2 to 5 condensed rings and a group obtained by directly bonding two or more of the rings. Examples of the aromatic heterocyclic group which may have a substituent include a furan ring, a benzopyrene ring, an α-cembene ring, a benzo D-cembene ring, a σ specific ring, a ° ratio σ ring, σ东11 seat ring, Saki two-salt ring, Budu ring, taste σ ring, σ 咯 并 ρ 唾 唾 、 、 ° ° ° ° ° ° ° ° ° ° tr tr tr tr tr tr tr tr tr tr tr tr tr tr Deuterophene ring, porphin and porphin ring, furan 11 σ ring, furanfuran ring, σ cetofuran ring, benzoisosazole ring, benzoheptene 11 stagnation ring, benzene And ° meter σ seat ring, α than bite ring, π than α well ring, tower ring,.密11定环,三讲环,啥琳环, 异喧琳环,碎琳环,啥秀琳环, 啡11定环, 苯和σ米唾环,一定环,σ|:α坐琳环, σΙ: σ sits on the ketone ring, the ring or other 5- or 6-membered ring of a single ring or a 2~4 condensed ring, and the base of the ring of 099107425 41 201042002 directly bonded. In terms of solubility and heat resistance, it is preferably selected from the group consisting of a benzene ring, a naphthalene ring, an anthracene ring, a ° thiophene ring, a pyridinium ring, a ruthenium such as Α γ 3 and an Arb, respectively. a phenanthrene ring, a triphenyl ring, a fluorene, a D ring, a ring of a ring in a group consisting of a ring, and a group of two or more rings (for example, a biphenyl group or a triphenyl group). . ", Zhongxing and good 疋 are derived from the base of the stupid ring (phenyl), the base of the two benzene rings (the base), and the base derived from the anthracene ring (the base). Examples of the substituent which the aromatic hydrocarbon group and the aromatic heterocyclic group of Ara& Arb may have include an alkyl group, a dilute group, an alkynyl group, an alkoxy group, an aryloxy group, an alkoxycarbonyl group, and a dialkylamine. Base, diarylamino group, fluorenyl group, halogen atom, haloalkyl group, thiol group, arylthio group, dream base, shixi alkoxy group, cyano group, aromatic tobacco jade base, Fangxiang family Ring base, etc. The polyarylene derivative is a polymerization of an extended aromatic group such as an aromatic hydrocarbon group or an aromatic heterocyclic group which may have a substituent which is exemplified as Ara and Arb in the above formula (II). Things. As the poly(aryl) derivative, a polymer having a repeating unit of the following formula (III-1) and/or the following formula (III-2) is preferred. [化10]

099107425 42 201042002 (In the formula (III-l), Ra, Rb, and m are independently independent, and represent an alkyl group, an alkoxy group, a phenylalkyl group, a phenyl alkoxy group, a phenyl group, a phenoxy group, and a pyrenylbenzene group. a group, an alkoxyphenyl group, a thiol group, a methoxy group or a carboxyl group. 丨 and s are each independently, and represent an integer of 0 to 3. When t or s is 2 or more, one molecule The plural R3 or Rb may be the same or different, and the adjacent Ra or Rb may form a ring with each other) [Chemical 11]

(In the formula (111-2), '1^ and Rf are independent' respectively mean the same meaning as • Ra, Rb, R<^ Rd in the above formula (III-1). r and u are independent, respectively, indicating 〇~ In the case where r or u is 2 or more, the plural R and R contained in one molecule may be the same or different, and the adjacent Rf may form a ring with each other. ❹ The X table does not constitute a 5-member ring or A group of atoms or groups of 6-membered rings), as a specific example of X, may be -〇-, -BR-, -NR-, -SiR2-'-PL, SR CR; 2- or these bonded base. Further, r represents an arbitrary organic group of a hydrogen atom. The so-called organic group of the present invention is a group containing at least one carbon atom. Further, as the poly(aryl) derivative, it is preferred to include the following formula (III-3) in addition to the repeating unit containing the above formula (III-1) and/or the above formula (HI-2). The repeating unit represented. 099107425 43 201042002 [Chem. 12] c Ar N.

I Μ rg —A-*

N-——AI 3 (ΠΙ-

Arh (In the formula (III-3), Arc to Ar1· are each independently and represent an aromatic hydrocarbon group or an aromatic heterocyclic group which may have a substituent. v and w are each independently and represent 0 or 1) as Are~human 4 Specific examples are the same as Ara and Arb in the above formula (II). Specific examples of the above formulas (III-1) to (III-3) and specific examples of the polyarylene derivative are described in Japanese Patent Laid-Open Publication No. 2008-98619. In the case where the hole transport layer is formed by the wet film formation method, the composition for forming the hole transport layer is prepared in the same manner as the formation of the hole injection layer, and then wet-film formation is performed, followed by heating. dry. The composition for forming a hole transport layer contains a solvent in addition to the above-described hole transporting compound. The solvent to be used is the same as that of the above-mentioned composition for forming a hole injection layer. Further, film formation conditions, heat drying conditions, and the like are also the same as those in the formation of the hole injection layer. In the case where the hole transport layer is formed by a vacuum evaporation method, the film formation conditions and the like are also the same as those in the formation of the above-described hole injection layer. The hole transport layer may contain, in addition to the above-mentioned hole transporting compound, an electron transporting compound, a binder resin, a coatability improver, and the like, each of which is 099107425 44 201042002. The X' hole transport layer may be a layer formed by crosslinking a crosslinkable compound. The cross-linking compound is a compound having a hetero-hybrid group, and the money (four) is cross-linked to form a reticulated southern molecular compound. "The example of a cardioid group on the right side can be exemplified by a ring derived from an oxetane, an epoxy compound or the like; and a group derived from a vinyl group, a trifluorovinyl group, or a phenylethyl group. The group of the unsaturated double bond such as a brewing group, a mercaptoacrylic group or a cassia base is derived from the group of the present cyclobutene. (4) The compound may be any of a monomer, a silk, or a polymer. Crosslinking! Biochemical substances can only contain i species, and can also be combined in any combination and ratios of 2 to _. It is a parent compound, and it is preferred to use a hole having a crosslinkable group to transport the compound. The hole transporting compound may be exemplified by the above-mentioned examples, and the parenting group may be bonded to the main chain or the side chain of the hole transporting compound. It is particularly preferred that the crosslinkable group is bonded to the main chain via a linking group such as an alkyl group. Further, particularly as a hole transporting compound, it is preferable to include a polymer having a repeating unit having a crosslinkable group, preferably having a crosslinkable group bonded directly or via a linking group to the above formula. (π) or a polymer of the repeating unit of formula (nM)~(ΙΙΙ-3). As the crosslinkable compound, a hole-wheeling compound having a crosslinkable group is preferably used. Examples of the hole-transporting compound include pyronium 099107425 45 201042002 bite derivative, ° ratio well derivative, ° bite derivative, three-speaking derivative, 啥琳 derivative, and morphine derivative a nitrogen-containing aromatic compound derivative such as a saccharide derivative, a phthalocyanine derivative, or a ruthenium derivative; a triphenylamine derivative; a silole derivative; an oligomeric σ-cephene derivative, a condensed polycyclic aromatic Derivatives, metal complexes, and the like. Among them, preferred are nitrogen-containing aromatic derivatives such as Π σ 定 衍生物 derivatives, α 讲 derivatives, α 衍生物 derivatives, 讲 衍生物 derivatives, 啥 衍生物 derivatives, morphine derivatives, miso derivatives, and the like. A triphenylamine derivative, a silole derivative, a condensed polycyclic aromatic derivative, a metal complex, etc., particularly preferably a triphenylamine derivative. When the cross-linking compound is crosslinked to form a hole transporting layer, a composition for forming a hole transporting layer which is obtained by dissolving or dispersing a crosslinkable compound in a solvent is usually prepared by wet film formation. The membrane is crosslinked. The composition for forming a hole transport layer may contain an additive which promotes a crosslinking reaction in addition to the crosslinkable compound. Examples of the additive which promotes the crosslinking reaction include a pyrenyl benzophenone compound, an acid phosphine oxide compound, a metallocene compound, a polymerization initiator such as an ester compound, an azo compound or a phosphonium salt, and A polymerization accelerator; a photo-sensitizer such as a condensed polycyclic hydrocarbon, a porphyrin compound or a diaryl ketone compound. Further, a coating improver such as a leveling agent or an antifoaming agent; an electron accepting compound; a binder resin may be further contained. The composition for forming a hole transport layer usually contains 0.01% by weight or more of the crosslinkable compound, preferably 0.05% by weight or more, more preferably 0.1% by weight or more, and usually 50% by weight or less, preferably Contains 20 099107425 46 201042002% by weight or less 'more preferably 10% by weight or less. After forming a composition for forming a hole transport layer containing the crosslinkable compound having the above-mentioned concentration on a lower layer (usually a hole injection layer), the crosslinkable compound is irradiated by electromagnetic energy such as heating and/or light. Crosslinking forms a network polymer compound. The conditions such as temperature and humidity at the time of film formation are the same as those in the wet film formation of the above-described hole injection layer.加热 The heating method after film formation is not particularly limited. The heating temperature condition is usually 12 〇 C or more, and preferably 4 Å. 〇The following. The heating time is usually 1 minute or longer, preferably 24 hours or less. The heating means is not particularly limited, and a laminate having a layer forming a film may be placed on a hot plate or heated in an oven. For example, it can be used on a heating plate, and it can be heated by 12 (temperature above rc) for more than one minute. When the electromagnetic energy of the diaphragm is irradiated, the following methods can be used: direct use of super-nanometer mercury lamp, south pressure Irradiation of ultraviolet light, visible light, or infrared light source such as mercury lamp, tooth lamp, or infrared lamp; or irradiation using a photomask with an internal light source in alignment with an exposure machine or a conveyor belt type light irradiation device. Electromagnetic energy other than light is irradiated In the case of the case, for example, a method of irradiating with a so-called microwave oven which irradiates the microwave generated by the magnetron is used. As the irradiation time, it is preferable to set the conditions required to lower the solubility of the film, and the irradiation is usually performed. For more than two seconds, it is preferred to irradiate for less than 10 hours. 099107425 47 201042002 Heating and light, etc. 2 rows. In the case of combination, the irradiation can be carried out separately, or the order of combination is not particularly limited. Preferably, the film thickness of the hole transport layer is usually 5 or less and 100 or more m' or more, and the pass f is below the leg, preferably {the row}: ===! The arrangement of the rows, the shape of the rows, and the like can be appropriately selected. Depending on the shape of the light-emitting layer 6 and the cathode, it is preferably a mesh pattern or a striped pattern. When the layer of the divided region is a light-emitting layer, it may be: a pattern in which the pattern of the region is reversed, etc., for the purpose of cutting the cathode or the like, and setting the blade for the purpose, The above-mentioned contact row is used as a cathode separator, and the cathode of the organic electroluminescence panel is patterned in a stripe pattern. The cross-sectional shape of the contact row is also not particularly limited. For example, the cross-sectional shape may be a shape of 'half B'. Further, it may be a trapezoidal trapezoidal shape or a tapered shape. Further, the shape that is turned around on the art is not particularly limited, and has a shape of an opening such as a rectangle, a circle, or a rectangle having a circular shape, or a shape of a straight line. As the contact material, if it is a material that can form a bank in a target pattern, it is not particularly limited. For example, the bank can be made to have a f-load. When there is a charge and a rotation, there is an advantage that even if there is a residue of the contact material (poor peeling) in the light-emitting surface, the unevenness of the light emission of the element can be reduced. 099107425 48 201042002 As the material of the above-mentioned contact, anti-baked material such as anti-blocking agent, or used for: using screen printing, anti-Ir, and light-paying for the upper grid printing anti-I pest material directly to the s Material wealth. It is easy to deal with large-scale borrowing when it is used as a material for riding a bicycle. v ^. θ , hot 舄 development step, so there is no production caused by the developer, etc. " 〒 之 之 电 输 输 之 之 之 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 When the photoresist is used as the octagonal shape of the bank material, the following advantages can be used: • Known conditions can be used as the process conditions, and the micro- and field processing knowledge is more than six', and the positive and negative types are appropriately set. The material selection, exposure, development, bake, and the like can be relatively easily made into a cross-sectional shape such as a trapezoidal trapezoidal shape or a tapered trapezoidal shape.

G is also used as the material used for the formation of the hole-transporting layer as the above-mentioned contact material, for example, in the following aspects: after patterning, even if residual light remains on the hole transport layer, the function is The possibility of a layer having an impact is also small. Alternatively, the light lithography method using a photomask or the like can be used to form a concave cross-sectional shape of the material of the hole transport layer and also serve as a structure for the hole transport layer and the bank, thereby simplifying the manufacturing steps. As the photoresist used as the above-mentioned contact material, either a positive type or a negative type can be used. Examples of the positive-type resist include TELR-P003 PM (manufactured by Tokyo Ohka Kogyo Co., Ltd.) and MCPR i7010N (manufactured by Rohm and Hass Co., Ltd.). As an example of the negative photoresist, there is ZPN2464 (manufactured by Japan Zeon Co., Ltd.). The photoresist used is preferably selected according to the purpose of forming the bank. 099107425 49 201042002. For example, in the case of forming inkjet printing, the coffee makers form the ==::1 surface of the touch row, and the other is to use the case where the negative barrier is used in the ... , more reasonably, as a photoresist with an inverted cone-shaped contact. The sound is the same material as the hole-carrying layer, and can be injected using the above-mentioned holes; the material made in the barrier of the light layer, and the following hole-resisting layer, the description of any material 7 layer, electron blocking In the different illuminating color 面 in the column of the layer, etc., in order to spread the coating well, the mountain S wants to form the luminescent layer immediately after forming the platoon, and ... is preferably adjacent to the thin layer. Floor. As long as the pancreas is not significantly detrimental to the present invention, it is preferred that the upper and lower suspensions are 1. 〇 (4) is τ, preferably 1 〇... can be = layer (here, luminescent layer 6) or functional layer after the second uneven. Further, the first layer of the film formed on the hole of the hole is a film of the material, and the thickness of the film is larger than the film thickness of the layer 6 of the light-emitting layer. Further, the width of the contact row may be any width as long as it does not significantly impair the effect of the present invention, and is usually in terms of the resolution of the light, the adhesion between the layer on which the bank is placed, and the adhesion of the bank. 1 (four) or more, preferably H) (four) or more. Further, in general, the area in which the above-described arrangement is provided f is a non-light-emitting area of the organic electroluminescence element, and therefore, the luminous efficiency and the light-emitting area of the electroluminescence element, etc., the width of the arrangement is usually (4) The following is better than 099107425 50 201042002 is less than 100 am. [Light Emitting Layer] A light emitting layer is provided on the hole injection layer, or a light emitting layer is provided on the hole transport layer when the hole transport layer is provided. The light-emitting layer is interposed between the electrodes 2 and 9 for supplying an electric field, and is excited by the combination of the holes injected from the anode and the electrons injected from the cathode to become a layer of the main light-emitting source. The light-emitting layer is preferably formed by a wet film formation method using the composition for an organic electroluminescence device of the present invention. In other words, the composition for an organic electroluminescence device of the present invention is preferably a composition for forming a light-emitting layer. {Formation method of the light-emitting layer} When the light-emitting layer is formed by a wet film formation method, the compound described in the item [Low Molecular Compound] is dissolved in a solvent to prepare a composition for a light-emitting layer. The composition was applied and dried. Further, it is also possible to carry out crosslinking after coating as needed. Film formation, drying, crosslinking, and the like may be carried out in the same manner as in the hole injection layer and the crucible hole transport layer. The film thickness of the light-emitting layer may be any thickness as long as it does not significantly impair the effects of the present invention, and is usually 3 rnn or more, preferably 5 nm or more, and usually 20 nm or less, preferably 1 〇〇nm below the range. If the film thickness of the luminescent layer exceeds 4 Å, defects may occur on the film, and if it is too thick, the driving voltage may rise. [Curtain barrier layer] A hole blocking layer may be provided between the light-emitting layer and the electron injection layer described below. Electric 099107425 51 201042002 The hole barrier layer is a layer laminated on the light-emitting layer in contact with the interface of the cathode side of the light-emitting layer. The hole blocking @ has the effect of preventing holes from moving from the anode from reaching the cathode, and efficiently transferring electrons injected from the cathode toward the light-emitting layer. The required physical properties of the material constituting the hole blocking layer include high electron mobility, low hole mobility, large energy gap (difference between H〇M〇 and LUMO), and excitation of triplet energy levels ( T1) is higher. As a material of the hole blocking layer which satisfies the above conditions, for example, bis(2_methyl_8_recording) (benzene) and (2methyl-8-fabrin) (triphenyl) Mixing ligand complex compound; bis(2_曱基_8-啥琳) Ming-side oxy-bis-(2·methyl-8-喧琳) Ming-nuclear metal a metal complex such as a compound; a stupid vinyl compound such as a diphenylethylbiphenyl derivative (Japanese Patent Laid-Open Publication No. U-242 No. 6); 3_(4_biphenyl)4-stupyl_5_(4- Third butyl phenyl trisodium sulphate, etc. (Japanese Patent Laid-Open No. Hei 7-41759); phenanthroline derivatives such as 2,9-dimethylbiphenyl benzene, 1 〇 morpholine (Japanese patent) Further, a compound containing at least one substituted pyridine ring of 2, 4, and 6 described in International Publication No. 2005/022962 is also preferably used as a hole resistance. Further, the material of the barrier layer may be any of a variety of materials, and may be used in any combination or in any ratio. There is no limitation on the method of forming the electric/intermediate barrier layer. Membrane 099107425 52 201042002 method It is formed by the steaming method and other methods. The film thickness of the hole barrier layer is as long as it is not any thickness, usually 0.3, and the main 疋0.5 nm is usually less than 100 nm. If the barrier layer is too thin, there is a case where the hole blocking ability is blocked by the hole. If the hole blocking layer is too thick, the efficiency of the hole is reduced [electron transport layer] ο 〇 〇 〇 〇 〇 与 与 与 与 Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ 7 The electro-electrode electrodes 2 and 9 can be transported from the cathode i to the polishing layer. As a material satisfying the above conditions, a compound can be transported. Among them, a good injection effect from a cathode or an electron injecting layer is usually used. A compound having a high electron count and a high electron yield can efficiently transport a compound of an electron to be injected. As an example, a metal complex such as an aluminum complex of 8 hydroxyquinoline can be cited. (Japanese Patent Laid-Open Publication No. 59-94393), 1〇_经基苯附附琳Metal complex, oxadiazole, distyrylbiphenyl derivative, 嗟♦ derivative, flavonoid metal complex, 5 gram metal complex, benzo ruthenium complex, Benzothiazole metal complex, tribenzimidazolyl benzene (U.S. Patent No. 5,645,948), et al. (Japanese Patent Laid-Open No. Hei 6-207169), and morphine derivative (Japanese Patent Laid-Open No. 5) -331459 099107425 53 201042002), 2-t-butyl-9,1 (Kn - murine quinone di-negative amorphous carbonized stone, b, zinc, _ ^ type gas again electronic transmission layer 7<The material can be used in one type or in any ratio and used in two or more types. ^ Any combination The method of forming the electron transport layer 7 is not _. Therefore, a film method, a vapor deposition method, and other methods are formed. The film of the wet-type electron-transporting layer 7 has a thickness of 0, /, which does not significantly detract from the present invention, and can be any thickness, and is usually a result of J of more than Um, and is usually 疋5 to X of 30 Å or less. On the other hand, the [electron injection layer] has a range of 疋1〇〇mn or less. "The effect of the 35 scale axis from the cathode to the luminescent layer is the layer used for the high-efficiency. In order to carry out the belt with high efficiency, the electricity input =: r is good, the use of sodium or Alkali metal, barium or calcium is considered to be 4. In this case, it is an alkaline earth metal and 5 nm or less. The film thickness of the electron injecting layer is preferably further refined by 4,7-diphenyl_M〇_ Porphyrins and the like are represented by metal complexes such as 8-hydroxyl-recovery complexes; = organic or chemically-doped organic compound patents in the compound or compounded compound (described in No. 71) In the publication, Japanese Patent Laid-Open Publication No. 2002-10, and Japanese Patent Laid-Open Publication No. 2002-100482, etc., it is preferable that the film thickness of the scorpion A' is improved, and therefore the film thickness of 099107425 54 201042002 is usually 5 Nm is on μ & M, wherein preferably 10 nm or more, usually 200 nm or less, and the product is preferably less than 1 〇〇 ηπ1. Further, the material of the electron injection layer can be used. One type can be used in any group, and only two or more types can be used. There is no limit to the method of forming the electronic layer. Therefore, It is formed by a method, a steaming method, and other methods. The (cathode) electrode system functions as a function of injecting electrons into a layer on the side of the light-emitting layer (electron injection layer, etc.). The material 'can be the same as the material used in the above-mentioned anodes'. In order to efficiently inject electrons, it is a genus with a lower work function. If an example is given, tin, magnesium, indium H, silver can be used. As a specific example, a bismuth-silver alloy: a low work function alloy electrode such as a magnesium-indium alloy or an aluminum-lithium alloy can be used. One type may be used in any combination or in any ratio of two or more. The film thickness of the cathode is usually the same as that of the anode. Further, in order to protect the cathode including the low work function metal, the work function is higher and the buildup function is higher. A metal layer (not shown) which is stable in the air is preferred because the stability of the element is increased. To achieve this, for example, aluminum, silver, copper, chrome, chrome, gold, and the like can be used. These materials can be used in t Two or more types may be used in combination at any combination and in any ratio. 099107425 55 201042002 [Other layers] The organic electroluminescent device of the present invention may have other constitutions within the scope of its purpose. For example, as long as the properties are not impaired, the anode disk is used. In addition to the layers 3 to 8 in the above description, the cathode may include any layer, and any layer may be omitted. Examples of the layer that can be included include an electron blocking layer. The sound is disposed between the hole injection layer or the hole transfer layer and the light-emitting layer. The electron resistance layer functions as follows: by preventing the electrons moving from the light-emitting layer from reaching the hole injection layer or electricity The hole transport layer increases the recombination probability of the electrons in the hole layer in the light-emitting layer, and the generated exciton seals the (four) illuminant; the hole injected into the layer from the hole is efficiently transported toward the illuminating layer. In particular, when an constituting material is used or a blue luminescent material is used as the luminescent material, it is effective to provide an electron blocking layer. The required characteristics of the material of the electron blocking layer are as follows: the hole transport energy is high, the energy gap (the difference between the surface defects and the LUM〇) is large, and the excitation triplet energy level is relatively south. Further, in the case where the light-emitting layer is formed by a wet film formation method, the electron blocking layer is required to have a suitability for wet film formation. Examples of the material used for the above-mentioned electron-blocking layer include dioctyl and triphenylamine represented by F8_TFB, and one substance (International Publication No. 4/Dismissal No.). Further, one type of the material of the electron blocking layer may be used, or two or more types may be used in any combination and in any ratio. There is no limit to the method of forming the layer. Therefore, it can be formed by a wet film formation method of 099107425 56 201042002, an evaporation method, or the like. Further, at the interface between the cathode and the light-emitting layer or the electron transport layer 7, for example, a pole formed by a gasification clock (10), magnesium fluoride (10) (5), lithium oxide (Li 2 〇), carbonic acid planer (H) (CsC 〇 3), or the like is inserted. Thin insulating film (typically 〇1 nm~5 nm) is also an effective method to improve component efficiency (refer to Applied Physics).

Letters' 1997 'Vol. 70, ρρ· 152; Japanese Patent Laid-Open No. 1745-74586, IEEE Transactions on Electron Devices ' 1997, OV〇l. 44, ρρ· 1245 ; SID 04 Digest, pp. 154 Wait). Further, in the layer configuration described above, constituent elements other than the substrate 1 may be laminated in the reverse order. For example, in the case of the layer structure of the layer, the order of the cathode, the electron injection layer, the electron transport layer, the hole barrier layer, the light-emitting layer, the turtle transport layer, the hole injection layer, and the anode may be applied to the substrate 1. Set other components. Further, for example, the organic electroluminescence element of the present invention may be constituted by laminating constituent elements other than the substrate between at least one of the two substrates having transparency. In addition, for example, a structure in which a plurality of components (light-emitting units) other than the substrate are superimposed and a plurality of sections (a structure in which a plurality of light-emitting units are laminated) may be used. In this case, if a charge generation layer (CGL) containing, for example, pentoxide (V2〇5) is provided, the interface layer between the segments (between the light-emitting units) is replaced (at the anode is ΓΓΟ' When the cathode is A1, if it is two layers, the barrier between the segments is small, and it is more preferable from the viewpoint of luminous efficiency and driving voltage. 099107425 57 201042002 Further, the organic electroluminescence device can be configured as a single organic electroluminescence device, and can also be applied to a plurality of organic electroluminescence devices arranged in an array, and can also be applied to an anode. It is composed of a cathode. Further, in the above-described respective layers 91, components other than the components described as the materials may be contained as long as the effects of the present invention are not significantly impaired. <Organic EL display > Knife The organic EL display of the present invention is the one using the above-mentioned light-emitting element. The type of organic EL display of the present invention can be used to limit the amount of money, and the money can be used to defeat the organic money wire component. For example, it can be used as an "organic machine display": 8...issued, when the Jingshi, Anda thousand wave vector, Village;: The method of the present invention forms the organic EL display of the present invention. <Organic EL Illumination> The organic EL illumination system uses the above-described organic electroconductive of the present invention. The type and structure of the organic el illumination of the present invention can be used, and the organic electroluminescence device of the present invention can be used, and the organic electroluminescence device can be used according to the f method. The present invention is described in detail by the λ application, and the present invention is not limited to the purpose of the present invention, and the position is not limited to that of the case (Example 1). 099107425 Using the composition (4) prepared in the following manner, the coefficient of Zengle 58 201042002 was calculated as follows. (Preparation of Composition (A)) Using cyclohexylbenzene as a solvent, the organic compounds (C3), (C4), and ruthenium complex (D2) shown below were used in such a manner that the solid content concentration was 1% by weight. Dissolve as (C3) : (C4) : (D2) = 10 : 1〇: ι (weight ratio), filter using a membrane filter made of PTFE (polytetrafluoroethylene) with a pore size of 0.2 // m ,. 〇 [Chemistry 13]

Then, a non-luminescent polymer (weight molecular weight of about 500,000) represented by the following structural formula (HP1) is added in a Q form of 1/5 (by weight) based on the solid content of the solution, and is sufficiently dissolved. The composition for an organic electroluminescence device of the present invention was prepared. [Chem. 14]

(Calculation of viscosity increasing coefficient) 099107425 59 201042002 The viscosity of the composition (Α) prepared in the above manner was measured by an E-type rotational viscometer, that is, a τν_2〇 type viscometer (manufactured by Toki Sangyo Co., Ltd.). Then, the composition (A) (10 g) was stirred by a magnetic stirrer in a glass culture dish, and the solvent component was slowly volatilized under a reduced pressure atmosphere. The viscosity of the composition obtained when the weight of the above composition was reduced to 1/2 (5 g), 1/3 (3.3 g), and 1/4 (2.5 g) was measured in the same manner as in the composition before concentration. The results of the relationship between the measured concentration ratio and the viscosity of the composition are shown in Fig. 2, which is represented by graphing. Further, the viscosity increase coefficient calculated based on the index approximation curve obtained from Fig. 2 is shown in Table 2. (Example 2) The viscosity increasing coefficient was calculated in the same manner as in Example 使用 using the composition (B) prepared in the following manner. The results of the relationship between the concentration ratio of the measured enthalpy and the viscosity of the composition are shown in Table 1, and the graph is shown in Fig. 2 .增 Further, the viscosity increase coefficient calculated from the approximate curve obtained from Fig. 2 is shown in Table 2. (Preparation of the composition (B)) In the first embodiment (preparation of the composition (A)), the non-luminescent polymer represented by the above formula (Hpl) is changed to the following formula (HP2). The luminescent polymer ADS200RE (manufactured by American Dye Source Co., Ltd., molecular weight Mw = about 1 million), and the ratio of its solid content to the solution is changed from 0/5107425 60 201042002 to 1/5 (weight ratio) to 1/ A composition (B) for an organic electroluminescence device of the present invention was prepared by dissolving in the same manner as in Example 1 except for the above. [化15]

(Example 3) The viscosity increasing coefficient was calculated in the same manner as in Example 1 using the composition (C) prepared in the following manner. The results of the relationship between the measured concentration ratio and the viscosity of the composition are shown in Table 1, and the graph is shown in Fig. 2 . Further, the viscosity increase coefficient calculated from the index approximation curve obtained from Fig. 2 is shown in Table 2. (Preparation of Composition (C)) The non-luminescent polymer represented by the above formula (HP1) used in Example 1 was changed to a non-luminescent polymer KF represented by the following formula (HP3). -96-10000CS (weight molecular weight Mw = about 60,000) (manufactured by Shin-Etsu Silicone Co., Ltd.), and further changed its ratio to the solid content of the solution from 099107425 61 201042002 1/5 (weight ratio) to 1/10 ( The composition (C) for an organic electroluminescence device of the present invention was prepared by dissolving in the same manner as in Example 1 except for the above. [Chemistry 16]

(II cHa—έι—3&lt;έί—φ—έί^- ii; 丨 丨 fiber_1^ lion. mwMi (Comparative Example 1) The composition (D) prepared in the following manner was used in the same manner as in Example 1. The viscosity-increasing coefficient is calculated by the method. The results of the relationship between the measured concentration ratio and the viscosity of the composition are shown in Table 1, and the graph is obtained by charting in Fig. 2. Further, according to the index obtained from Fig. 2 The viscosity increase coefficient calculated by the approximate curve is shown in Table 2. (Preparation of Composition (D)) In Example 1, except that the non-light-emitting polymer represented by the above formula (HP1) was not added, The composition was prepared in the same manner as in Example 1 to obtain the composition (D). 099107425 62 201042002 [Table 1] Table 1 Relationship between concentration ratio and viscosity of the composition Concentration rate The viscosity (CP) of Example 1 Example 2 Viscosity (cP) Viscosity of Example 3 (cP) Viscosity of Comparative Example 1 (cP) xl 3.5 4.4 3.7 2.8 x2 4.6 7.1 5.2 3 x3 6.0 11.6 7.2 3.2 x4 7.8 19.0 10.0 3.4 [Table 2] Table 2 Example of viscosity increase coefficient Example 1 Example 2 Example 3 Comparative Example 1 &amp; viscosity coefficient 0.27 0.49 0.33 0.06 〇 <Evaluation of inkjet film forming property> (Real Example 4) The measurement sample shown in Fig. 3 was produced. 'The film shape of the light-emitting layer formed by the ink-jet method was evaluated. (Measurement of the sample substrate) &lt;Preparation of the substrate with the transparent conductive film&gt; Conventional photolithography and hydrochloric acid etching, which are formed by depositing an indium-tin oxide (yttrium) transparent conductive film on a glass substrate at a thickness of ❹120 nm (manufactured by Sanyo Vacuum Co., Ltd., sputtered film-forming product) A strip of 2 mm width is used to form an anode. The substrate on which the anode is formed is cleaned by ultrasonic cleaning using an aqueous solution of a surfactant, water washing with ultrapure water, ultrasonic cleaning with ultrapure water, and ultrapure water. After washing in the order of washing, the mixture is dried by nitrogen blowing, and finally subjected to ultraviolet ozone cleaning. &lt;Formation of a hole injection layer&gt;, and 'k'-preparation of a composition for forming a seven-hole injection layer. The polymer having the surface structure of the following 099107425 63 201042002 (the amount of the average molecular weight is 〇) is 2 weights and 0.4% by weight of the electron-accepting compound represented by the following formula (A1): solution: benzoic acid as a solvent In the middle A composition for forming a hole injection layer having a solid concentration of 2.4 mils is formed. [Chem. 17]

(A1) The above-described composition for forming a hole injecting layer is used; and film formation is performed on a substrate having _. Spin coating is applied to the air temperature two::: two air: in the middle of the 'rotation number is set to 15 〇 rpm, when rotating ^ ^, after the film on the hot plate, 卩 8 〇〇 c heating and then in the air of the oven, The 丄τ was subjected to baking at 230 C for 1 hour, and the above-mentioned aggregation was made to form a hole injection layer of 3 〇 nm. &lt;Formation of a hole transport layer&gt; 099107425 64 201042002 Then, a polymer having a repeating structure of the formula (7) of the composition for forming a hole transport layer is formed (the weight average molecule #^ is dissolved in a solvent as a solvent. The cyclohexyl double-use composition. The cyclohexylbenzene system is used in a commercial product = layer formation r〇^m, and the moisture wave degree is carried out in a nitrogen gas hand_box). Ο [Chem. 19]

(V) 基板 The substrate on which the hole injection layer was formed was placed in a nitrogen glove box, and the composition for forming a layer of the hole was used, and the layer was formed by spin coating on the hole injection layer. The number of suspected revolutions is set to 15 rpm and the rotation time is set to % seconds. In: After 'on the hot plate, to reduce the supply! In the hour, the above polymer was allowed to pass to form a hole transport layer having a film thickness of 30 nm. The preparation of the hole-shaped layered crucible composition, the coating by the spin coating method, and all the exposure to the line in a rat milk glove box having an oxygen concentration of 丨.0 ppm and a water concentration of 丨ppm. And proceed. &lt;Formation of undercoat layer&gt;. The underlying material was thoroughly mixed and thoroughly mixed, thereby preparing a polyethylene t-butyl ketone having a composition of hydrophilic epithelial compound _1 (Japanese catalyst 099107425 I (\η λ 65 201042002) 0.25 g) Polyvinylpyrrolidone K-30 (manufactured by Nippon Shokubai Co., Ltd.) as a hydrophilic compound-2, 0.75 g, polyether modified polydidecyloxynekane BYK-330 as a coating property adjuster (BYK Chemie) The company manufactures 1 mg, 100 g of propylene glycol monomethyl ether as solvent-1, and 100 g of 3-decyloxy-1-butanol as solvent-2. The composition for the undercoat layer is used by spin coating. The method was applied to the hole transport layer so as to have a dry film thickness of 70 nm to form an undercoat layer, and the drying was performed at 80 ° C for 1 minute using a hot plate. &lt;Formation of the bank> A photosensitive composition for forming a bank was prepared. &lt;Adhesive Resin-1&gt; The resin produced in the following Synthesis Example 1 was used. [Synthesis Example 1: Production of Adhesive Resin-1] Nitrogen replacement was performed while performing 145 parts by weight of propylene glycol monodecyl ether acetate was stirred, and the temperature was raised to 120 ° C. Styrene 2 was added dropwise thereto. 0 parts by weight, 57 parts by weight of glycidyl methacrylate, and 82 parts by weight of a monoacrylate FA-513M (manufactured by Hitachi Chemical Co., Ltd.) having a tricyclodecane skeleton, and further stirring was continued at 140 ° C for 2 hours. The inside of the reaction vessel was air-substituted, and 0.7 parts by weight of tris-didecylaminononylphenol and 0.12 parts by weight of hydroquinone were added to 27 parts by weight of acrylic acid, and the reaction was continued at 120 ° C for 6 hours. Thereafter, it was added. 52 parts by weight of tetrahydrophthalic anhydride (THPA) and 0.7 parts by weight of triethylamine were reacted at 120 ° C for 3.5 hours to obtain an alkali-soluble resin, that is, a binder resin, represented by the following formula: 099107425 66 201042002 - 1. The weight average molecular weight (Mw) of the resin is about 8000. [Chem. 20]

Dipentaerythritol hexaacrylate (DPHA) (manufactured by Sakamoto Chemical Co., Ltd.) &lt;ethylenically unsaturated compound-2&gt;

Denacol Acrylate DA-314 (manufactured by Nagase chemteX)

[Chem. 21] 099107425 67 201042002 &lt; Ethylene Unsaturated Compound-3 &gt; [Chem. 22]

&lt;Photopolymerization initiator-1 &gt;

Irgacure-907 (manufactured by Ciba Special Chemicals) [Chem. 23]

&lt;Coating property adjuster-1&gt; Polyether modified polydidecyloxynekane BYK-330 (manufactured by BYK Chemie Co., Ltd.) &lt;liquid-repellent component-1&gt;

Megafac RS-102 (manufactured by DIC Corporation) &lt;Solvent-1&gt; Propylene glycol monodecyl ether acetate The following materials were blended and thoroughly mixed to prepare a liquid photosensitive composition for the formation of a bank: a binder Resin-1 48 g, ethylenically unsaturated compound-1 24 g, ethyl acetonide unsaturated compound-2 24 g, ethylene unsaturation 099107425 68 201042002 compound called, "starting agent _13g, coating Sexual adjustment of mig, liquid-repellent component -1 〇.6 g, solvent -1,130 g. The liquid-repellent photosensitive composition was applied onto the undercoat layer formed by a spin coating method so as to have a dry thickness of 2 (4), thereby forming a liquid-repellent photosensitive composition layer. The drying was vacuum dried for 1 minute, and further, it was carried out under the conditions of a small minute by using a hot plate.

Then, 'the synthetic quartz mask is kept at a gap of 100 with respect to the liquid-forming layer composition layer, and 3 kw high-pressure mercury is used. Under the exposure conditions, the line width is 3G _, and the line spacing is deleted. The matrix pattern of the orthogonal grid pattern is subjected to exposure. And using a solution of 曱5 % 氢氧化 TM TM 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 水溶液 水溶液 水溶液 水溶液 水溶液 水溶液 水溶液 水溶液 水溶液 水溶液 水溶液 水溶液 水溶液 水溶液After the filming, it was dehumidified by compressed air by washing with a water spray for a few seconds. Then it was baked at 230. (: After baking in an oven for 3 minutes, a layer of the photosensitive composition having a liquid-repellent composition was obtained. The substrate of the matrix pattern is formed. Further, the step of forming the matrix pattern of the liquid-repellent photo-active composition layer is performed under yellow light intercepting ultraviolet light. &lt;Inkjet Film Formation&gt; The obtained composition (4) (1 5 g) was subjected to vacuum defoaming treatment, and then filled in an inkjet cartridge DMCq i 6 i 〇 (made by FU Conglm), using the inkjet printer DMP_2831 (FUjIFILM Dimatix) 099107425 69 201042002 (4), in the area defined by the above method, the height is 2 _, the opening P width is 70 (four) interval, and the area is divided into 11 droplets 4 The pi is the age of the voltage, and 3 drops are sequentially applied to each block (pixel). Sprayed to the area of the block, the area of the gpl0_ square, and then the pre-drying of the applied droplet-shaped composition under reduced pressure (1 Τοπ^) Then, calcination was carried out in a vacuum oven for 1 hour to obtain a matrix pattern-like luminescent layer film. <Measurement of luminescent layer film shape> by optical microscope (manufactured by OLYMPUS) and three-dimensional non-contact surface shape measurement Vertscan (manufactured by Ryoka System Co., Ltd.), observed and measured in the light-emitting layer which was subjected to ink-jet coating by the above-mentioned method, from the portion of the 4 (4) to the inner side of the 1G block X1Q block of the region (1) The state of the pixel film thickness in the bank is shown in Fig. 4. The obtained optical micrograph (4) and cross-sectional shape (b) are shown in Fig. 4. (Example 5) In Example 4, &lt;Inkjet film formation> In the same manner as in the example, the &lt;inkjet film formation&gt; and &lt;measurement of the light-emitting layer_form were carried out in the same manner as in the example except that the composition (8) was changed to the composition (9) obtained in the second embodiment. The optical microscope photograph (a) and the cross-sectional shape (b) are shown in Fig. 5. (Example 6) In Example 4, the composition (A) in &lt;Inkjet Film Formation&gt; was changed to the composition (C) obtained in Example 3 except that it was 099107425 70 201042002 In the same manner as in Example 4, &lt;inkjet film formation&gt; and &lt;measurement of the shape of the light-emitting layer film were carried out. The optical microscope photograph (a) and the cross-sectional shape (b) are shown in Fig. 6. (Comparative Example) 2) In the sixth embodiment, the composition (A) in the &lt;inkjet film formation&gt; was changed to the composition (D) of the article obtained in Comparative Example 1 except that it was the same as in Example 4. In the manner described above, &lt;inkjet film formation&gt; and &lt;measurement of the shape of the light-emitting layer film.光学 The obtained optical microscope photograph (a) and cross-sectional shape (b) are shown in Fig. 6. As shown in Fig. 4 to Fig. 6, in the case of using the composition for an organic electroluminescence device of the present invention, the film shape of the light-emitting layer is uniform. That is, in the case of forming an element, the electro-cmrent constriction generated when the film is not easily formed unevenly is formed, so that the driving life is long. Further, the organic electroluminescence device including such a film does not cause a short circuit or a dark spot. (Example 7) 〇 (Preparation of composition (E)) • The organic compounds (C5) and (D3) shown below were obtained by using cyclohexylbenzene as a solvent and having a solid content concentration of 1% by weight. (C5) : (D3) = .100 : 10 (weight ratio) ratio is dissolved, and filtered using a membrane filter with a pore diameter of 〇_2 “π!” [Chem. 24] 099107425 71 201042002

Then, the polymer compound represented by the above formula (HP3) is added so as to be 1/10 by weight based on the solid content of the solution (polyoxygenated oil KF-96-10CS: weight molecular weight Mw = about 1,000) The composition (E) for an organic electroluminescence device of the present invention is prepared by sufficiently dissolving it. Then, in the same manner as in Example 4, the composition (A) in the &lt;inkjet film formation&gt; was changed to the above composition (E), and inkjet was carried out in the same manner as in the fourth embodiment. Film formation> The film formation state was observed by an optical microscope. The results are shown in Fig. 8(a). (Comparative Example 3) (Preparation of the composition (F)) A composition (F) for an organic electroluminescence device was obtained in the same manner as in Example 7 except that the polymer compound was not added. Then, in the same manner as in the fourth embodiment, the composition (A) in the &lt;inkjet film formation&gt; was changed to the above-described composition (F), and inkjet was carried out in the same manner as in the fourth embodiment. Film formation> The film formation state was observed by an optical microscope. The results are shown in Fig. 8(b). As shown in Fig. 8, in the case of using the composition for organic electroluminescence device of the present invention 099107425 72 201042002, the fine structure visible in the light-emitting layer is reduced. Namely, a homogeneous film is formed by suppressing aggregation of a low molecular compound by containing a localized knife & The organic electroluminescent device having such a film has high efficiency and long life. (Example 8) (Preparation of the composition (G)) The organic compounds (C6), (C7), and (D4) shown below were used as a solvent using a cyclohexyl group as a solvent and a solid content concentration of 5% by weight. ), ¢) 5) Dissolve in a ratio of 〇 (C6) : (C7) : (D4) : (D5) = 25 : 75 : 5 ·· 7 (weight ratio), using a membrane filter of PTFE with a pore size of 0.2 Filtered.

[Chem. 25]

(C7)

Then, the polymer compound represented by the above structural formula (HP3) is added so as to be sufficiently dissolved in a solid content of the solution to be 1/100 (by weight), and the organic electroluminescent device of the present invention is prepared. The composition (G) was used. 099107425 73 201042002 (Preparation of organic electroluminescence element) &lt;Preparation of substrate with transparent conductive film&gt;, &lt;Formation of hole injection layer&gt;, &lt; Formation of hole transport layer &gt; Processing was performed in the same manner as in Example 4. &lt;Formation of Light-Emitting Layer&gt; Subsequently, the composition (G) was used for coating on the hole transport layer by spin coating. The number of rotations is set to 17 rpm and the rotation time is set to ι 2 〇. After the film formation, a light-emitting layer having a film thickness of 55 nm was formed on a hot plate under reduced pressure at 13 (r baking for 丨 hours to remove the solvent). Preparation of the composition for the light-emitting layer, using a spin coating method The coating and baking were all carried out in a nitrogen glove phase having an oxygen concentration of 1.0 ppm and a water concentration of 1 〇 ppm without exposure to air. &lt;Formation of a hole element layer and an electron transport layer. The substrate which has been formed into the light-emitting layer is transferred to the organic layer evaporation device, and is exhausted until the vacuum in the device reaches 24 χ 1 〇 .4 (5) or less, and the compound shown below in the vacuum deposition method is called The electric enthalpy layer is obtained, and the steaming degree is controlled to be layered on the luminescent layer in the range of .7 to (10) A/sec, and (4) to 1 Gnm. The degree of vacuum in the second plating is 2.4 to 2.7 x 10-4 Pa. Steaming [Chem. 26] 099107425 201042002

Ο Next, the following (4) is heated to carry out vapor deposition, and the electron transport layer is formed into a film. The vacuum degree during the treatment of money is controlled in the secret 4 h circumference, steaming Wei Qian money control U ~ L5 A / fi, n on the hole resistance layer on the layer, and forming a film thickness of 2 () Tengzhi Electronics Transport layer. [化27]

Here, the element that has been distilled to the electron transport layer is moved into the cathode vaporization chamber, so that the stripe-shaped mask of the 2 mm width, which is used as a cathode for the cathode, is orthogonal to the ITO stripe of the anode. Close to the component. As the electron injecting layer, firstly, a molybdenum boat was used, and the vapor deposition rate was controlled at ~0.4 A/sec, and the degree of vacuum was controlled at 3.2 to 6.7 x 10 4 Pa, so that Dunhua clock (LiF) was formed into a film at a film thickness of 0.5 nm for electron transport. On the floor. Then, as a cathode, 099107425 75 201042002 Similarly, the aluminum is heated by a molybdenum boat, the evaporation rate is controlled at 0 7 to 5.3 A/sec, and the degree of vacuum is controlled at 2.8 to 11 lxio-4 Pa to form a film thickness of 80 nm inscription layer. The substrate temperature at the time of vapor deposition of the above two layers was maintained at room temperature. &lt;Sealing of the element&gt; Next, in order to prevent deterioration of the element due to moisture or the like in the air during storage, the sealing treatment is performed by the method described below. Apply a photocurable resin (ThreeB〇n (ie IE 30Y-437)) to the center of the glass plate of '23 mm x 23 mm size' in the air-glove glove phase. A wet sheet (manufactured by Humidity Getter Sheet XDynic Co., Ltd.), on which a substrate on which a cathode has been formed is bonded so that a vapor deposition surface and a desiccant sheet face each other. Thereafter, only a photocurable resin is applied. The area was irradiated with ultraviolet light to harden the resin. An organic electroluminescence element having a light-emitting area portion of a size of 2 imnx 2 mm was obtained in the above manner, and the luminance half life of the element was shown in Table 3. (Example 9) (Composition (Production of the material (H)) The polymer compound represented by the above formula (Hp3) is changed to a polymer compound represented by the following formula (Hp4) in the preparation of the composition (G) The composition (H) for an organic electroluminescence device of the present invention was prepared in the same manner as in Example 8 except for the above. [Chem. 28] 099107425 76 201042002

CH* (Production of Organic Electroluminescence Element) Next, in the formation of the light-emitting layer of Example 8, 'the composition (H) was used instead of the composition (G), and otherwise An organic electroluminescence element was produced in the same manner. The luminance half life of this element is shown in Table 3. (Example 10) (Preparation of Composition (I))

In the case of the preparation of the composition (G), the polymer compound represented by the above formula (HP4) is changed to the polymer compound represented by the following formula (HP 5), and The composition (1) for an organic electroluminescence device of the present invention was prepared in the same manner as in Example 8. [化29]

Sl·CHa (HP5) (manufactured by an organic electroluminescence device), and then in the formation of the light-emitting layer of Example 8, the composition (I) is used instead of the composition (G), A 099107425 77 201042002 organic electroluminescent device was fabricated in the same manner as in Example 8. The half life of the element is shown in Table 3. (Comparative Example 4) (Preparation of Composition (J)) In the same manner as in Example 8, except that the polymer compound was not added, the present invention was prepared in the same manner as in Example 8 (preparation of the composition (G)). Composition (J) for an organic electroluminescence device. (Production of Organic Electroluminescence Element) Next, in the formation of the light-emitting layer of Example 8, the composition (G) was used instead of the composition (G)', except that it was the same as Example 8. The organic electroluminescent element is produced in the same manner. The luminance half life of this element is shown in Table 3. It is known that the organic electroluminescent device of the present invention has a long life. [Table 3] Example 8 Example 9 Example 10 Comparative Example 4 Brightness half life (set Comparative Example 4 to 1.0) 1.3 1.7 ^~~1 1.0 Here, the brightness half life is set to be Comparative Example 4 It is expressed as the relative value of 1. The present application is based on Japanese Patent Application No. 2009-061664, filed on Jan. (Industrial Applicability) The present invention can be preferably used in various fields in which organic electroluminescence elements are used, such as flat panel displays (for example, OA computers or wall-mounted televisions), and light sources that function as surface illuminants ( For example, the light source of the photocopier, liquid crystal display 099107425 78 201042002 display and measuring instrument type backlight source), display board [schematic description] ~ 蝼 and other fields. Structure of Optical Element Fig. 1 is a cross-sectional view schematically showing an example of the organic electroluminescence of the present invention. And the relationship between the components of several parts in Comparative Example 1. The vertical axis represents the viscosity of έ and 夂, and Fig. 2 shows the condensing ratio of Examples 1 to 3 and the viscosity of the composition (cP) ’. The horizontal axis represents the concentration ratio. 3 is a cross-sectional view schematically showing the structure of the substrates of Examples 4 to 7 and Comparative Example 2. Measurement sample Fig. 4 is a view showing (a) and cross-sectional shape (b) of the light-emitting layer film obtained in Example 4.卞Micrograph photograph ’ Fig. 5 is a view showing the reason (a) and the cross-sectional shape (b) of the light-emitting layer film obtained in Example 5.卞Micrograph Fig. 6 is a view showing the luminescent layer film 埯 O (a) and the cross-sectional shape (b) obtained in Example 6. Fig. 7 is a view showing "(a) and cross-sectional shape (b) of the light-emitting layer 比较 obtained in Comparative Example 2. Photograph of the micro-mirror of the light collector 10 is shown in Example 7. (a) of the light-emitting layer film and the wind of the light-emitting layer film obtained in Comparative Example 3, "Photograph of the microscope photograph (b). [Main component symbol description 1 substrate, Yougan I member micro x, 099107425 79 201042002 2 Anode 3 hole injection layer 4 hole transport layer 5 contact row 6 light-emitting layer 7 cathode 8 electron injection layer 9 electron transport layer 10c organic electro Light-emitting element 11 electron blocking layer 099107425 80

Claims (1)

201042002 VII. Application for a patent, a composition for an organic electroluminescence device, comprising a luminescent material, a charge transporting material, a polymer compound, and an organic solvent; wherein the polymer compound is selected only by The atom in the group consisting of a gas atom, an sp2 carbon atom, a ruthenium: a sub-two, and an atomic group (the same is a saponin hydrocarbon group). The rhyme is composed of a composition for a surface light-emitting element of the first aspect of the invention, and the main skeleton of the polymer material is a oxy-fired bond. ^ The composition for an organic electroluminescence device according to item 1, wherein the same knife compound comprises a repeating unit represented by the following formula (XX): [Chemical Formula 1] R3 - C - C - R6 (XX) (The above formula (XX) towel 'R~han 6 each independently represents a hydrogen atom, a burnt group, an aromatic group and an aromatic hydrocarbon group; however, at least one of r3 to r6 is an aromatic smoke having a reading of 6 or more. base). 4. The composition for an organic electroluminescence device according to any one of the above claims, wherein the polymer compound is contained in an amount of not less than 5% by weight and not more than 50% by weight based on the solid content. 099107425 201042002 5. If the composition of the patent scope is 1 = part, the viscosity-increasing coefficient η of the organic electroluminescent element of any item of item ^ is G.2 or more; (calculation method of viscosity increasing coefficient) {Method for calculating viscosity increasing coefficient j Measurement of composition before concentration> Drying, measuring the viscosity of the composition after the composition was weighed and then decompressing the composition (1G g); concentrating to 1/2 ( 5g), 1/3 (3.3 (4) seems to set the horizontal axis X as the upper block 澧 as the viscosity, using the exponential function 'degree multiple (du 2, 3 · ·.) 'vertical axis y approximation, with the following formula (1) Open the curve calculated by the measurement data and calculate the value: y= # lxexp(nx(x~!)) (In the above formula, from 1 is the concentration before the organic electroluminescence. The method for producing a viscosity-increasing coefficient is characterized in that the organic electroluminescent element obtained by the application of the patent range is from the fifth to the fifth, and is formed by an inkjet method or a nozzle printing method. An organic electroluminescent device comprising an anode and a cathode, and an organic material disposed between the anode and the cathode At least one layer of the organic layer is an organic layer formed by using the composition for an organic electroluminescence device according to any one of claims 1 to 5. 8. An organic EL display, It comprises the electroluminescent element of the seventh patent scope of the patent application. 9 'organic rainbow illumination' which contains the electroluminescent element of the seventh application patent scope. 099107425 82