EP2052585A1 - Composant tridimensionnel luminescent et procédé de fabrication dudit composant - Google Patents

Composant tridimensionnel luminescent et procédé de fabrication dudit composant

Info

Publication number
EP2052585A1
EP2052585A1 EP07788193A EP07788193A EP2052585A1 EP 2052585 A1 EP2052585 A1 EP 2052585A1 EP 07788193 A EP07788193 A EP 07788193A EP 07788193 A EP07788193 A EP 07788193A EP 2052585 A1 EP2052585 A1 EP 2052585A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
electroluminescent structure
adhesive
component
electroluminescent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07788193A
Other languages
German (de)
English (en)
Inventor
Manfred Hartmann
Mark Dr. Walter
Dietmar Wechselberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schreiner Group GmbH and Co KG
Original Assignee
Schreiner Group GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schreiner Group GmbH and Co KG filed Critical Schreiner Group GmbH and Co KG
Publication of EP2052585A1 publication Critical patent/EP2052585A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/20—Making multilayered or multicoloured articles
    • B29C43/203—Making multilayered articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/30—Making multilayered or multicoloured articles
    • B29C43/305—Making multilayered articles

Definitions

  • the present invention relates to a three-dimensionally designed light-emitting component and a method for producing the same.
  • it relates to such a component and method based on at least one electroluminescent film.
  • electroluminescent films consist of at least the following layers: a base film, a first electrode layer, a layer with luminescent pigments, a second, transparent electrode layer and a transparent cover film. Additional auxiliary layers such as barrier layers or dielectrics may be present. Furthermore, the cover and / or base films can simultaneously serve as electrode layers.
  • a segmentation of the electrode layer must be made, while the luminescent pigment layer is segmented as well as unsegmented structured controlled.
  • a segmentation of the pigment layer is usually carried out by printing different color pigment segments, while the electrode layers are effected by interrupting the electrical contacts within the layer and individual contacting of the segments thus obtained.
  • Such a flat film construction due to the complexity of the layers and the segmentation, is a product which is only to some extent suitable for deformation into the third dimension.
  • a use of electroluminescent films is also desired in applications where decorative components have uneven surfaces.
  • electroluminescent films on such components is only possible if the component does not have too uneven irregularities or strong surface curvatures, as otherwise easily air bubbles are trapped during application or the adhesive electroluminescent composite is positioned on the edge.
  • DE 19717740 A1 discloses a method in which an electroluminescent film is placed in an injection mold in the so-called in-mold process and back-injected with a hot, liquid plastic.
  • the film may have already been deformed in advance by deep drawing.
  • this poses the problem that the complex film structure can be easily damaged by the hot liquid plastic.
  • locally high temperature peaks occur, which locally cause damage to the film structure and thus may render the entire component useless.
  • the invention is therefore based on the object of providing a three-dimensional component with an electroluminescent film in such a way that a light-emitting molded body is formed reliably and even with more complex surface structures. It is likewise an object of the invention to provide a three-dimensional component equipped with an electroluminescent film, which has a higher stability and lower susceptibility to interference in comparison with the prior art.
  • the first object is achieved according to claim 1 by connecting an electroluminescent film with a workpiece, in which an electroluminescent structure is heated and for connecting the two Elements a boundary layer is activated.
  • an electroluminescent structure is heated and for connecting the two Elements a boundary layer is activated.
  • Claim 20 and its subclaims claim a corresponding three-dimensional component equipped with an electroluminescent film, the particularly preferred embodiments of which are the subject matter of claims 21-24.
  • FIG. 1 is a sectional view of an electroluminescent film and a workpiece for explaining a particularly preferred embodiment of the production process according to the invention
  • FIG. 2 shows the product according to the invention from the same manufacturing process
  • FIG. 3 is a sectional view of an electroluminescent film and a workpiece in a machine for explaining a particularly preferred embodiment of the production process according to the invention
  • FIG. 4 a flow chart for a production process according to the invention in linear representation
  • Figure 5 shows a workpiece which is required for a particular sub-embodiment of the manufacturing process.
  • a workpiece 101 is connected to an electroluminescent foil assembly 102.
  • This film consists of an electroluminescent film 103 (the layer structure described in the introduction) and a The activatable boundary layer 104 facing the workpiece 101.
  • the electroluminescent film structure 102 is connected to the workpiece by applying heat, in that the boundary layer 104 is activated by the heat and thus a connection between the two elements takes place.
  • a barrier layer may be an additionally applied layer, such as an activatable adhesive.
  • the activatable adhesives are then preferably to choose those that are activated or crosslinked especially by heat or by cooling processes after the application, for example, hot melt or multi-component adhesives or latent reactive adhesives that react by heat and harden it.
  • the last film layer of the electroluminescent film 103 which softens at a corresponding temperature and melts on the surface, whereby it can likewise be fused to the surface of the workpiece 101, can serve as the boundary layer.
  • the activatable boundary layer can also be the surface of the workpiece or both surfaces together. It is necessary for the process of the invention, the heating of at least one of the two elements to be connected, the associated activation of the boundary layer and the simultaneous merger of the two elements into a composite material.
  • a deformation process is carried out, which in turn is ideally heat-induced.
  • the planar electroluminescent foil 103 can be adapted to and connected to the three-dimensional surface of the workpiece by the heating. In comparison with an injection-molding process, this process is significantly more gentle on the material and, above all, has no such high material stresses locally due to uncontrollable temperature peaks. Rather, the electroluminescent film 103 is uniformly heated and thereby softer and more malleable in its consistency, so that material damage during this deformation can be virtually ruled out. Two effects of the deformation process which are completely surprising for the person skilled in the art are discernible.
  • a three-dimensional component 205 consists of a workpiece 201 to which an electroluminescent film 203 is connected by means of a melt 204.
  • FIG. 3 illustrates a specific embodiment of the manufacturing process according to the invention, based on which numerous variable embodiment elements can be explained.
  • a workpiece 301 is also connected to an electroluminescent film 303 with the aid of an activatable boundary layer 304.
  • a mold 307 in the form of a stamp having a contour corresponding to the workpiece presses the electroluminescent film 303 against the workpiece, which in turn is pressed from below by means of a counter tool, here Form a bottom plate 306 with air passages, is fixed.
  • At least one tool is necessary for the process, which holds at least one of the two elements to be connected in one position.
  • a second ie a counter-tool, can support the process.
  • a mechanical force and / or the application of gas overpressure or underpressure it is possible to use a mechanical force and / or the application of gas overpressure or underpressure.
  • a negative pressure for example, serve the air passages in the bottom plate 306.
  • stamp-like shapes are used in special cases, but also rollers (such as rotatable cylinders, balls, ellipses or cones, for example, with brush surface for better pressing the electroluminescent film on the workpiece).
  • a further distinction of the preferred production methods is whether previously isolated electroluminescent pieces of film are applied cyclically to individual workpieces or whether the process is a continuous process.
  • FIG. 4 Such a method is shown schematically in FIG. 4: a workpiece, here in the form of a workpiece strand 408, and an electroluminescent film 409, which is fed in web form from a roll, are fed into a machine 410, where they are heated by means of heat,
  • Positive and negative pressure (indicated by the arrows) merged and connected to each other in a method according to the invention.
  • An electroluminescent molded part strand 411 is led away from the machine, which is then separated into components, for example by punching, laser cutting or similar processes.
  • Advantage of the continuous process is the faster feasibility and the easier controllable process.
  • the disadvantage is that the production of more complex surface structures can be accomplished only with additional tools.
  • a hybrid between these two methods is the merging of individual workpieces, which are presented on a conveyor belt.
  • This workpiece 501 has one or more air passage channels 512. This makes it possible for a vacuum built up from the flat underside not only to attach to the side of the workpiece, but also directly to the surface. The electroluminescent film which is bonded to the workpiece is therefore sucked and fused uniformly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

Procédé de fabrication d'un composant (205) luminescent tridimensionnel pourvu d'au moins une structure électroluminescente (102), selon lequel la structure électroluminescente est chauffée et reliée à une pièce (101, 201, 301) par activation à l'aide d'au moins une couche limite (104, 304) située entre les deux éléments. La présente invention concerne en outre un composant électroluminescent pourvu d'au moins une structure électroluminescente, dans lequel ladite structure électromuninescente est reliée à au moins une surrface d'une pièce par une masse fondue (204).
EP07788193A 2006-08-14 2007-08-03 Composant tridimensionnel luminescent et procédé de fabrication dudit composant Withdrawn EP2052585A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610037997 DE102006037997A1 (de) 2006-08-14 2006-08-14 Dreidimensionales Bauteil und Verfahren zur Herstellung desselben
PCT/EP2007/058056 WO2008019957A1 (fr) 2006-08-14 2007-08-03 Composant tridimensionnel luminescent et procédé de fabrication dudit composant

Publications (1)

Publication Number Publication Date
EP2052585A1 true EP2052585A1 (fr) 2009-04-29

Family

ID=38596894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07788193A Withdrawn EP2052585A1 (fr) 2006-08-14 2007-08-03 Composant tridimensionnel luminescent et procédé de fabrication dudit composant

Country Status (3)

Country Link
EP (1) EP2052585A1 (fr)
DE (1) DE102006037997A1 (fr)
WO (1) WO2008019957A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2886287A1 (fr) * 2013-12-20 2015-06-24 nolax AG Procédé de fabrication de composants hybrides
DE102016210990A1 (de) 2016-06-20 2017-12-21 Eos Gmbh Electro Optical Systems Tiefziehform und Verfahren zum Modellieren und Herstellen derselben

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0678216B1 (fr) * 1992-12-16 2003-03-19 Durel Corporation Dispositifs a lampes electroluminescentes et leur fabrication
JP3732252B2 (ja) * 1995-05-18 2006-01-05 大日本印刷株式会社 液晶表示装置用光制御機能性シートの製造方法
JP2691148B2 (ja) * 1995-08-22 1997-12-17 エドカ工業株式会社 シート状レンズの製法
DE102004013819A1 (de) * 2004-03-20 2005-10-06 Volkswagen Ag Schalter für ein Kraftfahrzeug
DE102004013820A1 (de) * 2004-03-20 2005-10-06 Volkswagen Ag Kunststoffbauteil für ein Kraftfahrzeug

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008019957A1 *

Also Published As

Publication number Publication date
WO2008019957A1 (fr) 2008-02-21
DE102006037997A1 (de) 2008-02-21

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