WO2022206710A1 - 显示面板和显示装置 - Google Patents

显示面板和显示装置 Download PDF

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Publication number
WO2022206710A1
WO2022206710A1 PCT/CN2022/083511 CN2022083511W WO2022206710A1 WO 2022206710 A1 WO2022206710 A1 WO 2022206710A1 CN 2022083511 W CN2022083511 W CN 2022083511W WO 2022206710 A1 WO2022206710 A1 WO 2022206710A1
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WIPO (PCT)
Prior art keywords
conductive layer
conductive
light
emitting device
cover plate
Prior art date
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Ceased
Application number
PCT/CN2022/083511
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English (en)
French (fr)
Inventor
郭利根
孙涛
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP22778892.4A priority Critical patent/EP4307380A4/en
Publication of WO2022206710A1 publication Critical patent/WO2022206710A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F3/00—Carrying-off electrostatic charges
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/871—Self-supporting sealing arrangements
    • H10K59/872—Containers
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F3/00—Carrying-off electrostatic charges
    • H05F3/02—Carrying-off electrostatic charges by means of earthing connections
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/131—Interconnections, e.g. wiring lines or terminals
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/871—Self-supporting sealing arrangements
    • H10K59/8721—Metallic sealing arrangements
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/871—Self-supporting sealing arrangements

Definitions

  • the present application relates to the technical field of displays, and in particular, to a display panel and a display device.
  • OLED display panel is a new development direction of display panel after LCD display panel. It has excellent characteristics such as no backlight, high contrast ratio, thin thickness, wide viewing angle, fast response speed, simple structure and process.
  • An electrostatic shielding layer is set in the OLED display panel to shield external static electricity.
  • a template, a foam adhesive layer and a copper foil are arranged on the back of the light-emitting device in sequence.
  • the template is used to shape the light-emitting device, and the foam adhesive layer is used for buffering.
  • the grounding of copper foil can lead away the charge on the back of the light-emitting device in time, and play a role in eliminating static electricity.
  • the cover plate is connected to the middle frame through an adhesive, the adhesive is an insulating material, the cover plate and the middle frame enclose a accommodating cavity, the light-emitting device is located in the accommodating cavity, and there is no electrical conduction between the components. sex.
  • the above-mentioned display panel device has poor shielding effect against static electricity, which causes static electricity to affect the display effect and even damage the driving circuit.
  • the present application provides a display panel and a display device, which improve the shielding effect of the display panel and the display device on static electricity, and solve the problems of poor static shielding effect of the display panel device.
  • a first aspect of the embodiments of the present application provides a display panel, including a light-emitting device and a cover plate, the cover plate is disposed on a side of a light-emitting surface of the light-emitting device, and the cover plate is disposed on a side away from the light-emitting device There is a first shield, and the first shield is grounded.
  • It also includes a conductive member, a substrate and a buffer layer are disposed between the light-emitting device and the first shielding member, and the conductive member is electrically connected to the light-emitting device and the first shielding member.
  • static electricity can be exported in time through the first shielding member, so as to avoid the accumulation of static electricity in the display panel and affect the luminous effect of the display panel.
  • the static electricity between the buffer layer, the buffer layer and the substrate can be discharged in time through the conductive member and the first shielding member, so as to avoid the accumulation of static electricity on the back of the light-emitting device, thereby affecting the normal operation of the driving circuit and improving the shielding effect of the display panel against static electricity. , to prevent static electricity from affecting the display effect and protect the drive circuit.
  • a first conductive layer is provided on the surface of the substrate on the side close to the light emitting device, and a second conductive layer is provided on the surface of the substrate on the side close to the buffer layer and a first via hole is opened on the substrate, and the first via hole communicates with the first conductive layer and the second conductive layer.
  • a third conductive layer is disposed in the first via hole, and two ends of the third conductive layer are respectively electrically connected to the first conductive layer and the second conductive layer.
  • the first conductive layer, the second conductive layer and the third conductive layer form the conductive member.
  • the static electricity between the substrate and the light-emitting device can be dissipated
  • the second conductive layer can be dissipated
  • the static electricity between the substrate and the buffer layer can be dissipated
  • the third conductive layer can be dissipated between the first conductive layer and the second conductive layer.
  • the static electricity of the conductive layer is discharged through the third conductive layer.
  • the buffer layer is a conductive layer.
  • the buffer layer can directly conduct the static electricity of the third conductive layer and the second conductive layer to the first shield.
  • the buffer layer is foam rubber, and the foam rubber is doped with conductive metal.
  • Conductive glue is provided on both sides of the foam glue.
  • conductive glue can be provided on both sides of the foam glue, and conductive metal is doped inside, so that the foam glue can not only play a role of bonding and buffering, but also can play a conductive role.
  • the buffer layer is an insulating layer.
  • the buffer layer mainly plays the role of buffering and bonding.
  • the conductive member includes a fourth conductive layer, the buffer layer is provided with a second via hole, and the fourth conductive layer is provided in the second via hole .
  • the second conductive layer and the third conductive layer can be communicated with the first shielding member through the fourth conductive layer, so as to facilitate the conduction of static electricity.
  • the conductive member includes a fifth conductive layer, and the fifth conductive layer is located on a side of the light emitting device.
  • the impedance of the fifth conductive layer is between 0-1 ⁇ 10 10 ohms.
  • the first conductive layer, the second conductive layer and the first shield can be connected through the fifth conductive layer on the side, and on the other hand, the static electricity on the side can be directly conducted to the first shield.
  • impedances of the first conductive layer, the second conductive layer, and the third conductive layer are between 0-1 ⁇ 10 10 ohms.
  • the first conductive layer, the second conductive layer and the third conductive layer are made of indium tin oxide.
  • the indium tin oxide can be disposed on the substrate by means of magnetron sputtering to form the first conductive layer, the second conductive layer and the third conductive layer.
  • the impedance of the buffer layer is between 0-1 ⁇ 10 10 ohms.
  • a second aspect of the embodiments of the present application further provides a display device, including a light emitting device and a cover plate, the cover plate is covered on one side of the light emitting surface of the light emitting device, and the cover plate is close to the side of the light emitting device
  • a display device including a light emitting device and a cover plate, the cover plate is covered on one side of the light emitting surface of the light emitting device, and the cover plate is close to the side of the light emitting device
  • a second shield is provided, and the second shield is grounded.
  • a sixth conductive layer is disposed on the cover plate, the sixth conductive layer is located on the side of the cover plate close to the light emitting device, and the sixth conductive layer is electrically connected to the second shielding member.
  • the static electricity on the cover plate can be exported in time through the second shielding member, so as to avoid the accumulation of static electricity on the cover plate.
  • it prevents static electricity from migrating from the cover plate to the back of the light-emitting device, thereby affecting the normal operation and light-emitting effect of the driving circuit of the light-emitting device.
  • the static electricity on the cover plate can be conducted in time through the sixth conductive layer.
  • static electricity is prevented from accumulating on the cover plate and migrating to the back of the light-emitting device, so as to avoid affecting the normal operation of the driving circuit, and improving the shielding effect of the display device against static electricity.
  • the display device includes a middle frame, the middle frame is disposed on a side of the cover plate close to the light-emitting device, and the cover plate is covered with the middle frame On the frame, the cover plate and the middle frame enclose an accommodation cavity, and the light-emitting device is arranged in the accommodation cavity.
  • the middle frame forms the second shield.
  • the middle frame can be set as the second shielding member, the existing component structure can be reasonably utilized, the number of parts to be set can be reduced, and the functions and functions of the middle frame can be enriched.
  • conductive glue is disposed between the middle frame and the cover plate, and the conductive glue connects the middle frame and the cover plate.
  • connection part between the middle frame and the cover plate can be conductive, and static electricity can be conducted through the conductive adhesive.
  • the middle frame is a metal piece
  • the sixth conductive layer is electrically connected to the middle frame.
  • the middle frame itself has the ability to conduct electricity, and can be used as a static conduction medium and a grounding medium.
  • the middle frame is an insulating member
  • a seventh conductive layer is provided on the side of the middle frame close to the cover plate, and the seventh conductive layer and the first The six conductive layers are electrically connected.
  • the material of the sixth conductive layer is ink, and the ink is doped with conductive metal.
  • the resistance of the sixth conductive layer can be reduced by doping the conductive metal, and the conductivity of the sixth conductive layer can be improved.
  • impedances of the sixth conductive layer and the seventh conductive layer are between 0-1 ⁇ 10 10 ohms.
  • the sixth conductive layer and the seventh conductive layer can have the ability to conduct static electricity, so as to facilitate the conduction of static electricity.
  • FIG. 1 is a schematic diagram of electrostatic induction of a display panel of the related art according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of the principle of holes in a TFT provided by an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of a display panel of the related art provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a partial structure of a mobile phone of the related art provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a first shielding structure of a display panel according to an embodiment of the present application.
  • FIG. 6 is a schematic cross-sectional structure diagram of a substrate of a display panel provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a second shielding structure of a display panel according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a middle frame, a cover plate, and a light-emitting device of a mobile phone according to an embodiment of the present application;
  • FIG. 9 is a schematic structural diagram of a cover plate of a mobile phone according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of the entire shielding structure of a mobile phone according to an embodiment of the application.
  • FIG. 11 is a schematic structural diagram of a mobile phone according to an embodiment of the application.
  • FIG. 12 is an exploded view of a mobile phone according to an embodiment of the present application.
  • 100-display panel 200-display device; 1-battery; 2-circuit board;
  • 3-back cover 10-light-emitting device; 11-base layer; 12-source electrode;
  • 40-buffer layer 50-first shield; 60-conductor; 61-first conductive layer;
  • OLED display panel is a new development direction of display panel after LCD. It has excellent characteristics such as no backlight, high contrast ratio, thin thickness, wide viewing angle, fast response speed, simple structure and process.
  • the OLED device is composed of a substrate, a cathode, an anode, a hole injection layer, an electron injection layer, a hole transport layer, an electron transport layer, an electron blocking layer, a hole blocking layer, and a light-emitting layer.
  • the substrate is the basis of the whole device, and all functional layers need to be evaporated on the substrate of the device; the anode is connected to the positive electrode of the device with the applied driving voltage, and the holes in the anode will emit light in the device under the driving of the applied driving voltage.
  • the anode When the layer moves, the anode needs to have a certain light transmittance when the device is working, so that the light emitted inside the device can be observed by the outside world; the most commonly used material for the anode is indium tin oxide.
  • the hole injection layer can modify the anode of the device, and can smoothly inject holes from the anode into the hole transport layer; the hole transport layer is responsible for transporting holes to the light-emitting layer; the electron blocking layer will transport the holes from the cathode.
  • the electrons are blocked at the interface of the light-emitting layer of the device, increasing the concentration of electrons at the interface of the light-emitting layer of the device; the light-emitting layer is the place where the electrons and holes of the device recombine to form excitons and then the excitons de-excite light; the hole blocking layer will The holes of the anode are blocked at the interface of the light-emitting layer of the device, thereby increasing the probability of recombination of electrons and holes at the interface of the light-emitting layer of the device, and increasing the luminous efficiency of the device; the electron transport layer is responsible for transporting electrons from the cathode to the light-emitting device of the device.
  • the electron injection layer plays the role of modifying the cathode and transporting electrons to the electron transport layer; the electrons in the cathode will move to the light-emitting layer of the device under the driving voltage of the device, and then between the light-emitting layer and the empty space from the anode.
  • the holes are recombined.
  • the structure of LCD is to place a liquid crystal cell in two parallel glass substrates, a thin film transistor is arranged on the glass of the lower substrate, and a color filter is arranged on the glass of the upper substrate, and the rotation direction of the liquid crystal molecules is controlled by the signal and voltage change on the thin film transistor. , so as to control whether the polarized light of each pixel is emitted or not to achieve the display purpose.
  • the gate 13 is used to apply a voltage, and static electricity induces holes in the base layer 11 of the thin film transistor (Thin Film Transistor, TFT).
  • TFT Thin Film Transistor
  • I represents the saturation current flowing through the OLED
  • C OX represents the channel capacitance per unit area of the thin film transistor
  • ⁇ represents the channel mobility
  • W represents the channel width
  • L represents the channel length
  • V gs represents the gate The voltage between the pole and the source
  • V th represents the threshold voltage.
  • the change of the threshold voltage affects the change of the saturation current
  • the change of the saturation current finally affects the luminous brightness of the light-emitting layer, which causes the display panel to feel poor display.
  • a copper foil 15 is generally provided to shield external static electricity.
  • a substrate 30 , a buffer layer 40 and a copper foil 15 are arranged on the “back” of the light-emitting device 10 in sequence. 30 is used to shape the light-emitting device 10, the buffer layer 40 is used for buffering and bonding, and the grounding of the copper foil 15 can conduct the "back" charge of the light-emitting device 10 away in time to eliminate static electricity.
  • both the substrate 30 and the buffer layer 40 are made of insulating materials, the shielding structure cannot shield the static electricity between the substrate 30 and the light emitting device 10 and between the substrate 30 and the buffer layer 40, resulting in the "back" of the light emitting device 10.
  • the electrostatic shielding is not complete, so the shielding effect is not good, and the remaining static electricity is still easy to affect the display effect, and even damage the driving circuit.
  • the cover plate 20 of the mobile phone is connected to the middle frame 90 by an adhesive 91, and the adhesive 91 is made of insulating material.
  • the device 10 is located in the accommodating cavity, and there is no electrical conductivity between the components.
  • static electricity is easy to accumulate on the outer surface of the cover plate 20, and it is easy for the user's fingers to come into contact with static electricity, which affects the user experience.
  • the outer surface migrates to the "back" of the light-emitting device 10, thereby affecting the threshold voltage of the driving circuit, and further affecting the light-emitting brightness and display effect.
  • the display panel 100 can be applied to electronic equipment, wherein the electronic equipment may include but not limited to mobile phones, tablet computers, notebook computers, ultra-mobile personal computers (ultra-mobile personal computers) computer, abbreviated as UMPC), handheld computer, walkie-talkie, netbook, POS machine, personal digital assistant (personal digital assistant, referred to as PDA), wearable device, virtual reality device and other mobile or fixed terminals with display panel 100, in this
  • the electronic device is described by taking a mobile phone as an example.
  • the display panel 100 may include a light-emitting device 10 and a cover plate 20 , the cover plate 20 is covered on the light-emitting surface side of the light-emitting device 10 , and a side of the cover plate 20 away from the light-emitting device 10 is provided with a first A shield 50, the first shield 50 is grounded.
  • the display panel 100 further includes a conductive member 60 , a substrate 30 and a buffer layer 40 are disposed between the light-emitting device 10 and the first shielding member 50 , and the conductive member 60 is electrically connected to the light-emitting device 10 and the first shielding member 50 .
  • the static electricity on the "back" side of the light-emitting device 10 can be conducted to the first shielding member 50 through the conductive member 60, that is, the side of the light-emitting device 10 away from the cover plate 20, between the light-emitting device 10 and the substrate 30, between the substrate 30 and the cover plate 20.
  • the static electricity between the buffer layers 40 can be conducted to the first shielding member 50 in time, so as to prevent the static electricity from accumulating on the “back” of the light emitting device 10 , thereby affecting the normal operation of the driving circuit.
  • grounding the first shielding member 50 is to electrically connect the first shielding member 50 to the negative electrode in the mobile phone, so that static electricity can flow into the negative electrode through the first shielding member 50 in time to prevent static electricity from affecting the driving circuit.
  • the first shielding member 50 in the present application is copper foil, which is a cathodic electrolytic material, has a wide temperature range, has excellent conductivity, and can provide better electromagnetic Shielding and antistatic effect.
  • a first conductive layer 61 may be provided on the surface of the substrate 30 on the side close to the light emitting device 10
  • a second conductive layer 61 may be provided on the surface of the substrate 30 on the side close to the buffer layer 40 .
  • Layer 62 a first via hole 64 may also be opened on the substrate 30 , and the first via hole 64 communicates with the first conductive layer 61 and the second conductive layer 62 .
  • a third conductive layer 63 is disposed in the first via hole 64 , and two ends of the third conductive layer 63 are electrically connected to the first conductive layer 61 and the second conductive layer 62 respectively.
  • the first conductive layer 61 is provided so that the static electricity between the substrate 30 and the light emitting device 10 can be conducted through the first conductive layer 61
  • the second conductive layer 62 is provided so that the static electricity between the substrate 30 and the buffer layer 40 can pass through the second conductive layer 62 conducts conduction
  • the third conductive layer 63 is arranged so that the static electricity of the first conductive layer 61 and the second conductive layer 62 can be conducted through the third conductive layer 63 .
  • the electrostatic conduction paths between the substrate 30 and the light emitting device 10 may be the first conductive layer 61 , the third conductive layer 63 , the second conductive layer 62 , the buffer layer 40 , and the first shield 50 ; the substrate 30 and the The conduction path of the static electricity between the buffer layers 40 can be the second conductive layer 62, the buffer layer 40, and the first shield 50 in sequence; the conduction path of the static electricity between the buffer layer 40 and the first shield 50 can be directly conducted to the first A shield 50 .
  • the buffer layer 40 can be a conductive layer, so that the buffer layer 40 can directly conduct static electricity from the third conductive layer 63 and the second conductive layer 62 to the first shield 50 .
  • the buffer layer 40 may be foam glue, and the thickness of the foam glue may be between 50-100 um, so that the thickness of the display panel 100 can be reduced as much as possible.
  • the foam rubber can be doped with conductive metal, and both sides of the foam rubber can be provided with conductive glue. In this way, the first shielding member 50 and the substrate 30 can be bonded through foam glue, conductive glue is provided on both sides of the foam glue, and the conductive metal is doped inside, so that the foam glue can play the role of bonding and buffering, Can also play a conductive role.
  • the foam glue is based on ethylene-vinyl acetate copolymer (ethylene-vinyl acetate copolymer, referred to as EVA) or polyethylene (polyethylene, referred to as PE) foam as the base material and is coated on one or both sides. It is made of solvent-based (or hot-melt) pressure-sensitive adhesive and then released paper. It does not contain harmful and toxic substances, does not pollute the equipment, and is not corrosive to metals. In addition, it has excellent wettability, easy to bond, easy to manufacture and easy to punch. Specifically, dust or oil stains on the surface of the substrate 30 and the light-emitting device 10 should be removed before sticking, and the surfaces should be kept dry. The working temperature should not be lower than 10°C during sticking, and should be left for 24 hours after sticking.
  • the conductive metal doped in the foam rubber can be nickel, copper or aluminum, etc., so that the foam rubber has a conductive function, and the specific types of the conductive metals are not limited in the embodiments of the present application.
  • the buffer layer 40 may be an insulating layer. Adhesives can be provided on both sides of the insulating layer, so that the buffer layer 40 can play the role of buffering and bonding.
  • the conductive member 60 may further include a fourth conductive layer, the buffer layer 40 is provided with a second via hole, and the fourth conductive layer is provided in the second via hole.
  • the second conductive layer 62 and the third conductive layer 63 can be communicated with the first shielding member 50 through the fourth conductive layer, so that static electricity can be discharged in time.
  • the main function of filling the third conductive layer 63 in the first via hole 64 is to achieve electrical conduction between the first conductive layer 61 and the second conductive layer 62, and the second via hole is filled with the fourth conductive layer.
  • the main function is to achieve electrical conduction between the second conductive layer 62 and the first shielding member 50, so that the static electricity of different conductive layers can be quickly transferred to the first shielding member 50, and the static electricity of the conductive member 60 and the first shielding member 50 can be strengthened. shielding effect.
  • the number of the first via holes 64 and the second via holes can be multiple, and can be evenly arranged on the substrate 30 and the buffer layer 40 , so that the conduction effect between the upper and lower layers can be better.
  • the conductive member 60 may further include a fifth conductive layer 65 , and the fifth conductive layer 65 is located on the side of the light emitting device 10 .
  • the fifth conductive layer 65 may be disposed on the periphery of the light emitting device 10 , and the fifth conductive layer 65 may sequentially communicate with the light emitting device 10 , the substrate 30 , the buffer layer 40 and the first shield 50 .
  • the static electricity generated by the friction of the cover plate 20 will migrate to the “back” of the light emitting device 10 through the side of the light emitting device 10 , so that the migrated static electricity can be directly conducted to the first shielding member 50 through the fifth conductive layer 65 to avoid electrostatic migration.
  • the fifth conductive layer 65 can also make the first conductive layer 61 , the second conductive layer 62 , the buffer layer 40 and the first shielding member 50 conduct with each other, so as to facilitate the rapid conduction of static electricity to the first shielding member 50 .
  • the fifth conductive layer 65 may be poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonic acid), polyethylenedioxythiophene-poly(styrenesulfonate), etc.
  • the inorganic material may also be metals such as silver paddle, ink, aluminum, copper, gold, etc.
  • the specific material of the fifth conductive layer 65 is not limited in the embodiment of the present application.
  • the impedance of the fifth conductive layer 65 is between 0-1 ⁇ 10 10 ohms, and the impedance is within the above range, which can ensure that the fifth conductive layer 65 conducts static electricity in time and avoids static electricity accumulation.
  • the impedance of the first conductive layer 61 , the second conductive layer 62 and the third conductive layer 63 is between 0-1 ⁇ 10 10 ohms, and the impedance is within the above range, which can ensure that the first conductive layer 61.
  • the second conductive layer 62 and the third conductive layer 63 conduct static electricity in time to avoid static electricity accumulation.
  • the materials of the first conductive layer 61 , the second conductive layer 62 and the third conductive layer 63 may be indium tin oxide.
  • ITO indium tin oxide
  • ITO indium tin oxide
  • group III oxide In 2 O 3
  • group IV oxide SnO 2
  • resistivity and transmittance resistivity and transmittance of ITO. It is controlled by the ratio of In 2 O 3 and Sn 2 O 3 respectively.
  • the indium tin oxide coating can be deposited on the surface of the substrate 30 by means of electron beam evaporation, physical vapor deposition, or sputtering deposition.
  • Magnetron sputtering is a kind of physical vapor deposition. It has the advantages of simple equipment, easy control, large coating area and strong adhesion.
  • the working principle of magnetron sputtering is: electronic Under the action of the electric field E, it collides with the argon atoms in the process of flying to the substrate, and ionizes them to generate Ar positive ions and new electrons; the new electrons fly to the substrate, and the Ar ions are accelerated and fly to the cathode under the action of the electric field
  • the target is bombarded with high energy to cause the target to sputter.
  • sputtering particles neutral target atoms or molecules are deposited on the substrate to form a thin film, and the generated secondary electrons are subjected to electric and magnetic fields, resulting in a drift in the direction indicated by E (electric field) ⁇ B (magnetic field).
  • E electric field
  • ⁇ B magnetic field
  • the motion trajectory approximates a cycloid. If it is a toroidal magnetic field, the electrons move in a circular motion on the target surface in the form of an approximate cycloid, and their motion paths are not only very long, but also bound in the plasma region close to the target surface, and ionize a large amount of Ar to bombard the target, thereby achieving high deposition rates.
  • the energy of the secondary electrons is exhausted, gradually moving away from the target surface, and finally deposited on the substrate under the action of the electric field E. Since the energy of the electrons is very low, the energy transferred to the substrate is very small, resulting in a low temperature rise of the substrate.
  • the impedance of the buffer layer 40 is in the range of 0-1 ⁇ 10 10 ohms, which can ensure that the buffer layer 40 can conduct static electricity in a timely manner and avoid static electricity accumulation.
  • each The conductive structure of the conductive layer is uniform, so that the impedance of each conductive layer is uniform, and the impedance value difference between different areas is avoided. , and the static electricity in the area with high impedance is relatively difficult to conduct out, or the conduction process is slow, which will also cause the static electricity with slow conduction to affect the driving circuit of the light emitting device 10 , thereby affecting the light emitting effect.
  • the display panel 100 may be a flexible OLED, a rigid OLED, or an LCD, and the specific type of the display panel 100 is not limited in the embodiment of the present application.
  • OLEDs are mainly driven by an electric field, and organic semiconductor materials and light-emitting materials achieve light emission through the injection and recombination of charge carriers.
  • the ITO glass transparent electrode is used as the anode of the device, and the metal electrode is used as the cathode.
  • the power supply electrons are transported from the cathode to the electron transport layer, and holes are injected from the anode to the hole transport layer, and then migrate to the light-emitting layer. , when the two meet, excitons are generated, which excite the light-emitting molecules, and generate a light source after radiation.
  • the substrate 30 may be a flexible plastic substrate, such as a polyethylene terephthalate (PET) film or a polyimide (Polyimide, abbreviated as PET) film.
  • PET polyethylene terephthalate
  • the thickness can be 50-150um, which can reduce the thickness of the display panel 100 to the greatest extent.
  • the flexible OLED is encapsulated with a polymer cover plate and special film bonding, which can keep the bending ability and folding characteristics of the screen, and has high reliability.
  • the substrate 30 may be a glass substrate.
  • the display panel 100 may further include a touch module, the touch module may be located between the cover plate 20 and the light emitting device 10 , and the touch module is used for receiving touch information input by a user.
  • the conductive member 60 in the substrate 30 and the buffer layer 40, the static electricity between the light-emitting device 10 and the buffer layer 40, the buffer layer 40 and the substrate 30 can pass through the conductive member 60 and the first A shielding member 50 is exported in time to avoid the accumulation of static electricity on the "back" of the light-emitting device 10 , which not only has good electrostatic shielding effect, but also has the advantages of less process modification, less difficulty, and low cost.
  • the display device 200 may be a mobile phone, a tablet computer, a notebook computer, a UMPC, a handheld computer, a walkie-talkie, a netbook, a POS machine, a PDA, a wearable device, a virtual reality device, etc.
  • the mobile or stationary terminal with the display panel 100 can also be used as indoor and outdoor general lighting, backlight, decorative lighting, and even artistic flexible luminous wallpaper, windows that can emit light in monochrome or color, wearable lighting Warning signs, etc.
  • the display device 200 is described by taking a mobile phone as an example.
  • the display device 200 may include a light-emitting device 10 and a cover plate 20 , the cover plate 20 is covered on the light-emitting surface side of the light-emitting device 10 , and a side of the cover plate 20 close to the light-emitting device 10 is provided with The second shield 70 is grounded.
  • a sixth conductive layer 80 is disposed on the cover plate 20 , the sixth conductive layer 80 is located on the side of the cover plate 20 close to the light emitting device 10 , and the sixth conductive layer 80 is electrically connected to the second shielding member 70 .
  • grounding the second shielding member 70 is to electrically connect the second shielding member 70 to the negative electrode in the mobile phone, so that static electricity can flow into the negative electrode through the second shielding member 70 in time to prevent static electricity from affecting the driving circuit.
  • the static electricity on the cover plate 20 can be discharged in time through the second shielding member 70, so as to avoid the accumulation of static electricity on the cover plate 20.
  • the influence of static electricity on the user can be avoided, and on the other hand, static electricity can be prevented
  • the migration from the cover plate 20 to the “back” of the light-emitting device 10 affects the normal operation and light-emitting effect of the driving circuit of the light-emitting device 10.
  • the sixth conductive layer 80 By providing the sixth conductive layer 80, the static electricity on the cover plate 20 can pass through the sixth conductive layer.
  • the layer 80 can be conducted to the second shielding member 70 in time to prevent static electricity from accumulating on the cover plate 20 and migrating to the “back” of the light emitting device 10 , avoiding affecting the normal operation of the driving circuit, and improving the shielding effect of the display device 200 against static electricity. .
  • the display device 200 further includes a middle frame 90 , the middle frame 90 is disposed on the side of the cover plate 20 close to the light emitting device 10 , the cover plate 20 is covered on the middle frame 90 , the cover plate 20 and the middle frame 90 are The frame 90 encloses an accommodating cavity, and the light emitting device 10 is arranged in the accommodating cavity.
  • the middle frame 90 forms the second shield 70 .
  • the middle frame 90 can not only serve as the frame of the mobile phone, but also can shield the static electricity on the mobile phone, so as to improve the electrostatic shielding effect of the mobile phone, and prevent the static electricity from affecting the display effect of the display panel 100 .
  • a conductive device can also be provided inside the mobile phone, one end of the conductive device is electrically connected to the sixth conductive layer 80, and the other end of the conductive device is grounded. No restrictions apply.
  • a conductive glue 92 is disposed between the middle frame 90 and the cover plate 20 , and the conductive glue 92 connects the middle frame 90 and the cover plate 20 .
  • the middle frame 90 and the cover plate 20 can be connected by the conductive glue 92 , but also the connection part of the middle frame 90 and the cover plate 20 can be electrically conductive, and static electricity can be conducted through the conductive glue 92 .
  • the conductive adhesive is an adhesive with certain conductivity after curing or drying. It can connect a variety of conductive materials together to form an electrical path between the connected materials. Before the conductive adhesive is cured or dried, the conductive particles exist separately in the adhesive without continuous contact with each other, so they are in an insulating state. After the conductive adhesive is cured or dried, the volume of the adhesive shrinks due to the volatilization of the solvent and the curing of the adhesive, so that the conductive particles are in a stable continuous state with each other, thus exhibiting electrical conductivity.
  • conductive adhesives can be further classified into room temperature curing conductive adhesives, medium temperature curing conductive adhesives, high temperature curing conductive adhesives, and ultraviolet light curing conductive adhesives.
  • the room temperature curing conductive adhesive is relatively unstable, and the volume resistivity is prone to change when stored at room temperature.
  • the high-temperature conductive adhesive is cured at high temperature, the metal particles are easily oxidized, and the curing time must be short to meet the requirements of the conductive adhesive.
  • the most widely used is the medium temperature curing conductive adhesive (below 150 °C). Its curing temperature is moderate, which matches the temperature resistance and operating temperature of electronic components, and has excellent mechanical properties, so it is widely used.
  • the conductive adhesive is mainly composed of resin matrix, conductive filler and diluent.
  • the matrix mainly includes epoxy resin, acrylate resin, polyurethane, etc.
  • Conductive fillers can be powders and inks of gold, silver, copper, aluminum, zinc, iron, nickel and some conductive compounds. Commonly used solvents (or diluents) should generally have larger molecular weights, slow volatilization, and should contain polar structures such as carbon-oxygen polar segments in the molecular structure.
  • the other components of conductive adhesives are the same as adhesives, including cross-linking agents, coupling agents, preservatives, toughening agents and thixotropic agents.
  • the middle frame 90 may be a metal piece, and the sixth conductive layer 80 is electrically connected to the middle frame 90 .
  • the middle frame 90 itself has the ability to conduct electricity, and can be used as a conductive medium for static electricity and a grounding medium.
  • the middle frame 90 may be an insulating member, a seventh conductive layer may be provided on the side of the middle frame 90 close to the cover plate 20 , and the seventh conductive layer and the sixth conductive layer 80 are electrically connected. In this way, static electricity can be conducted to the ground electrode through the seventh conductive layer.
  • the seventh conductive layer may be ITO, and is disposed on the middle frame 90 by a method of magnetron sputtering.
  • the material of the middle frame 90 can be glass, plastic or ceramic, etc.
  • the middle frame 90 can be made of fiber-reinforced composite materials, wherein the reinforcing fibers can include but are not limited to glass fibers, carbon fibers, boron nitride fibers, silicon carbide fibers, alumina fibers, boron fibers, zirconia fibers, and aramid fibers.
  • the matrix material can be a plastic matrix.
  • the specific material of the middle frame 90 is not limited in the embodiment of the present application.
  • the material of the sixth conductive layer 80 may be ink, and the ink is doped with conductive metal.
  • the conductive metal may be powders of gold, silver, copper, aluminum, zinc, iron, and nickel, and the specific types of the conductive metal are not limited in the embodiments of the present application.
  • the mobile phone may also include a battery 1 , a circuit board 2 and a back cover 3 , and the circuit board 2 and the battery 1 may be arranged on the middle frame 90 , for example, the circuit board 2 and the battery 1 are arranged in the middle frame 90 .
  • the side of the frame 90 facing the back cover 3 , or the circuit board 2 and the battery 1 may be disposed on the side of the middle frame 90 facing the display panel 100 .
  • the circuit board 2 may be a printed circuit board (Printed circuit board, referred to as PCB), and the circuit board 2 has chips, such as a power amplifier, an application processor (Central Processing Unit, referred to as a CPU), a power management chip (Power Management chip) IC, abbreviated as PMIC) or radio frequency chip.
  • chips such as a power amplifier, an application processor (Central Processing Unit, referred to as a CPU), a power management chip (Power Management chip) IC, abbreviated as PMIC) or radio frequency chip.
  • the battery 1 can be connected to the charging management module (not shown) and the circuit board 2 through the power management module (not shown), and the power management module receives the input of the battery 1 and/or the charging management module, and provides the processor, internal The memory, the external memory, the display panel 100, the camera, and the communication module are powered.
  • the power management module can also be used to monitor battery 1 capacity, battery 1 cycle times, battery 1 health status (leakage, impedance) and other parameters.
  • the power management module may also be provided in the processor of the circuit board 2 .
  • the power management module and the charging management module may also be provided in the same device.
  • the back cover 3 may be a metal back cover, a glass back cover, a plastic back cover, or a ceramic back cover.
  • the material of the back cover 3 is not limited.
  • the mobile phone may include more or less components than shown, or some components may be combined, or some components may be separated, or different component arrangements.
  • a mobile phone may also include a camera (eg, a front-facing camera and a rear-facing camera), a flash, and other devices.
  • the impedances of the sixth conductive layer 80 and the seventh conductive layer are between 0-1 ⁇ 10 10 ohms. In this way, the sixth conductive layer 80 and the seventh conductive layer have the ability to conduct static electricity, which facilitates the conduction of static electricity.
  • the cover plate 20 and the grounded middle frame 90 are connected to each other, and the impedance is between 0-1 ⁇ 10 10 ohms, which can achieve the shielding effect of the whole mobile phone and prevent static electricity from affecting the display effect of the display panel 100 .
  • the shielding structure of the display panel 100 in the first embodiment of the present application can also be combined, so that the shielding effect can be strengthened, so that the shielding effect of the mobile phone is the best.
  • the substrate 30 and the buffer layer 40 are also arranged between the light-emitting device 10 of the display panel 100 and the first shielding member 50, and the setting method of the conductive member 60 is the same as that in the first embodiment of the present application, except that in FIG. 10 is shown in detail.

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Abstract

本申请实施例提供一种显示面板和显示装置，通过设置第一屏蔽件和导电件，使发光器件和缓冲层、缓冲层和基板之间的静电可以通过导电件和第一屏蔽件及时导出，避免静电在发光器件的"背部"富集，从而影响驱动电路的正常工作；通过设置第二屏蔽件和第六导电层，不仅避免了静电对用户造成影响，而且防止静电向发光器件的"背部"迁移，从而影响驱动电路的正常工作。上述设置提升了显示面板和显示装置对静电的屏蔽效果，防止静电影响显示效果，保护了驱动电路。

Description

显示面板和显示装置
本申请要求于2021年04月02日提交中国专利局、申请号为202110362424.2、申请名称为“显示面板和显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示器技术领域，特别涉及一种显示面板和显示装置。
背景技术
随着技术的发展，以液晶显示器(Liquid Crystal Display，简称为LCD)和有机发光二极管(Organic Light-Emitting Diode，简称为OLED)技术为代表的显示技术争奇斗艳，日新月异。OLED显示面板是继LCD显示面板后新的显示面板发展方向，具有不需背光源、对比度高、厚度薄、视角广、反应速度快、构造及制程较简单等优异特性。
在OLED显示面板中，由于最外侧的玻璃基板在使用过程中易摩擦产生静电，静电容易进入到发光器件的背部，进而影响驱动电路，影响发光器件的发光效果。OLED显示面板中会设置静电屏蔽层来屏蔽外部静电，具体的，发光器件的背部依次设置有样板、泡棉胶层和铜箔，样板用于对发光器件定型，泡棉胶层用于缓冲作用，铜箔接地可以把发光器件的背部电荷及时导走，起到消除静电的作用。或者，在终端设备中，盖板通过粘接胶与中框连接，粘接胶为绝缘材质，盖板和中框围成容纳腔，发光器件位于容纳腔内，且各部件之间不具备导电性。
然而，上述的显示面板装置对静电的屏蔽效果不佳，导致静电影响显示效果甚至击伤驱动电路。
发明内容
本申请提供一种显示面板和显示装置，提升了显示面板和显示装置对静电的屏蔽效果，解决了显示面板装置对静电屏蔽效果不佳等问题。
本申请实施例第一方面提供一种显示面板，包括发光器件和盖板，所述盖板盖设在所述发光器件的发光面一侧，所述盖板背离所述发光器件的一侧设置有第一屏蔽件，所述第一屏蔽件接地。
还包括导电件，所述发光器件和所述第一屏蔽件之间设置有基板和缓冲层，所述导电件电性连接所述发光器件和所述第一屏蔽件。
本申请提供的显示面板，通过设置第一屏蔽件，使静电可以通过第一屏蔽件及时导出，避免静电在显示面板中富集，影响显示面板的发光效果，通过设置导电件，使发光器件和缓冲层、缓冲层和基板之间的静电可以通过导电件和第一屏蔽件及时导出，避免静电在发光器件的背部富集，从而影响驱动电路的正常工作，提升了显示面板对静电的屏蔽效果，防止静电影响显示效果，保护了驱动电路。
在第一方面的一种可能的实现方式中，所述基板靠近所述发光器件一侧的表面设置有第一导电层，所述基板靠近所述缓冲层一侧的表面设置有第二导电层，所述基板上开设有第一过孔，所述第一过孔连通所述第一导电层和所述第二导电层。
所述第一过孔内设置有第三导电层，所述第三导电层的两端分别与所述第一导电层和所述第二导电层电性连接。
所述第一导电层、所述第二导电层和所述第三导电层形成所述导电件。
这样通过设置第一导电层可以使基板和发光器件之间的静电导出，设置第二导电层可以使基板和缓冲层之间的静电导出，设置第三导电层可以使第一导电层和第二导电层的静电通过第三导电层导出。
在第一方面的一种可能的实现方式中，所述缓冲层为导电层。
这样缓冲层可以将第三导电层和第二导电层的静电直接传导给第一屏蔽件。
在第一方面的一种可能的实现方式中，所述缓冲层为泡棉胶，所述泡棉胶内掺杂有导电金属。
所述泡棉胶的两侧均设置有导电胶。
这样可以通过给泡棉胶两侧设置导电胶，内部掺杂导电金属的方式使泡棉胶既可以起粘接和缓冲的作用，还可以起导电的作用。
在第一方面的一种可能的实现方式中，所述缓冲层为绝缘层。
这样缓冲层主要起缓冲和粘接的作用。
在第一方面的一种可能的实现方式中，所述导电件包括第四导电层，所述缓冲层上设置有第二过孔，所述第四导电层设置在所述第二过孔内。
这样可以通过第四导电层将第二导电层和第三导电层与第一屏蔽件连通，便于静电导出。
在第一方面的一种可能的实现方式中，所述导电件包括第五导电层，所述第五导电层位于所述发光器件的侧边上。
所述第五导电层的阻抗介于0-1×10 10欧姆。
这样一方面可以在侧边通过第五导电层将第一导电层、第二导电层和第一屏蔽件连通，另一方面也可以将侧边上的静电直接导到第一屏蔽件上。
在第一方面的一种可能的实现方式中，所述第一导电层、所述第二导电层和所述第三导电层的阻抗介于0-1×10 10欧姆。
所述第一导电层、所述第二导电层、所述第三导电层的材质为氧化铟锡。
这样可以采用磁控溅射的方式将氧化铟锡设置在基板上，形成第一导电层、第二导电层和第三导电层。
在第一方面的一种可能的实现方式中，所述缓冲层的阻抗介于0-1×10 10欧姆。
这样可以使缓冲层能够传导静电。
本申请实施例第二方面还提供一种显示装置，包括发光器件和盖板，所述盖板盖设在所述发光器件的发光面一侧，所述盖板靠近所述发光器件的一侧设置有第二屏蔽件，所述第二屏蔽件接地。
所述盖板上设置有第六导电层，所述第六导电层位于所述盖板靠近所述发光器件的一侧，所述第六导电层和所述第二屏蔽件电性连接。
本申请提供的显示装置，通过设置第二屏蔽件，使盖板上的静电可以通过第二屏蔽件及时导出，避免静电在盖板上富集，一方面可以避免静电对用户造成影响，另一方面防止静电从盖板上向发光器件的背部迁移，从而影响发光器件的驱动电路的正常工作和发光效果，通过设置第六导电层，使盖板上的静电可以通过第六导电层可以及时传导到第二屏蔽件上，避免静电在盖板上富集以及向发光器件的背部迁移，避免影响驱动电路的正常工作，提升显示装置对静电的屏蔽效果。
在第二方面的一种可能的实现方式中，所述显示装置包括中框，所述中框设置在所述盖板靠近所述发光器件的一侧，所述盖板盖合在所述中框上，所述盖板和所述中框围成容纳腔，所述发光器件设置在所述容纳腔内。
所述中框形成所述第二屏蔽件。
这样可以把中框设置为第二屏蔽件，合理利用现有部件结构，减少零件的设置数量，丰富中框的功能和作用。
在第二方面的一种可能的实现方式中，所述中框和所述盖板之间设置有导电胶，所述导电胶连接所述中框和所述盖板。
这样可以使中框和盖板的连接部位具有导电能力，且通过导电胶对静电进行传导。
在第二方面的一种可能的实现方式中，所述中框为金属件，所述第六导电层与所述中框电性连接。
这样使中框本身具有导电能力，可以作为静电的传导介质和接地媒介。
在第二方面的一种可能的实现方式中，所述中框为绝缘件，所述中框靠近所述盖板的一侧设置有第七导电层，所述第七导电层和所述第六导电层电性连接。
这样可以通过第七导电层将静电传导至接地电极上。
在第二方面的一种可能的实现方式中，所述第六导电层的材质为油墨，所述油墨中掺杂有导电金属。
这样可以通过掺杂导电金属降低第六导电层的阻抗，提高第六导电层的导电性能。
在第二方面的一种可能的实现方式中，所述第六导电层和所述第七导电层的阻抗介于0-1×10 10欧姆。
这样可以使第六导电层和第七导电层具有传导静电的能力，便于静电传导。
附图说明
图1为本申请一实施例提供的相关技术的显示面板的静电感应示意图；
图2为本申请一实施例提供的空穴在TFT中的原理示意图；
图3为本申请一实施例提供的相关技术的显示面板的结构示意图；
图4为本申请一实施例提供的相关技术的手机的部分结构示意图；
图5为本申请一实施例提供的显示面板的第一种屏蔽结构的结构示意图；
图6为本申请一实施例提供的显示面板的基板的剖面结构示意图；
图7为本申请一实施例提供的显示面板的第二种屏蔽结构的结构示意图；
图8为本申请一实施例提供的手机的中框、盖板和发光器件的结构示意图；
图9为本申请一实施例提供的手机的盖板的结构示意图；
图10为本申请一实施例提供的手机的整机屏蔽结构示意图；
图11为本申请一实施例提供的手机的结构示意图；
图12为本申请一实施例提供的手机的爆炸图。
附图标记说明：
100-显示面板；   200-显示装置；     1-电池；       2-电路板；
3-后盖；         10-发光器件；      11-基层；      12-源极；
13-栅极；        14-漏极；          15-铜箔；      16-源极区；
17-漏极区；      18-沟道区；        20-盖板；      30-基板；
40-缓冲层；      50-第一屏蔽件；    60-导电件；    61-第一导电层；
62-第二导电层；  63-第三导电层；    64-第一过孔；  65-第五导电层；
70-第二屏蔽件；  80-第六导电层；    90-中框；      91-粘接胶；
92-导电胶。
具体实施方式
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释，而非旨在限定本申请。
在显示器技术领域，随着技术的发展，以LCD和OLED技术为代表的显示技术争奇斗艳，日新月异。OLED显示面板是继LCD后新的显示面板发展方向，具有不需背光源、对比度高、厚度薄、视角广、反应速度快、构造及制程较简单等优异特性。
OLED器件由基板、阴极、阳极、空穴注入层、电子注入层、空穴传输层、电子传输层、电子阻挡层、空穴阻挡层、发光层等部分构成。其中，基板是整个器件的基础，所有功能层都需要蒸镀到器件的基板上；阳极与器件外加驱动电压的正极相连，阳极中的空穴会在外加驱动电压的驱动下向器件中的发光层移动，阳极需要在器件工作时具有一定的透光性，使得器件内部发出的光能够被外界观察到；阳极最常使用的材料是氧化铟锡。空穴注入层能够对器件的阳极进行修饰，并可以使来自阳极的空穴顺利的注入到空穴传输层；空穴传输层负责将空穴运输到发光层；电子阻挡层会把来自阴极的电子阻挡在器件的发光层界面处，增大器件发光层界面处电子的浓度；发光层为器件电子和空穴再结合形成激子然后激子退激发光的地方；空穴阻挡层会将来自阳极的空穴阻挡在器件发光层的界面处，进而提高器件发光层界面处电子和空穴再结合的概率，增大器件的发光效率；电子传输层负责将来自阴极的电子传输到器件的发光层中；电子注入层起对阴极修饰及将电子传输到电子传输层的作用；阴极中的电子会在器件外加驱动电压的驱动下向器件的发光层移动，然后在发光层与来自阳极的空穴进行再结合。
LCD的构造是在两片平行的玻璃基板当中放置液晶盒，下基板玻璃上设置薄膜晶体管，上基板玻璃上设置彩色滤光片，通过薄膜晶体管上的信号与电压改变来控制液晶分子的转动方向，从而达到控制每个像素点偏振光出射与否而达到显示目的。
如图1所示，在OLED显示面板中，由于最外侧的盖板20在使用过程中易摩擦产生静电，由于电势差，静电容易迁移到发光器件10的“背部”，“背部”具体指发光器件10远离发光面的一侧。如图2所示，栅极13用于施加电压，静电在薄膜晶体管(Thin Film Transistor，TFT)的基层11中感应形成空穴，图中a表示感应出的空穴，当栅极13施加电压后，感应出的空穴向基层中的沟道区18中迁移，空穴在源极12对应的源极区16和 漏极14对应的漏极区17之间的沟道区18富集，导致驱动电路中阈值电压发生偏移，根据OLED的电流公式：
I＝(1/2)C OX(μW/L)(V gs-V th) 2
其中，上式中：I表示流过OLED的饱和电流，C OX表示薄膜晶体管单位面积的沟道电容，μ表示沟道迁移率，W表示沟道宽度，L表示沟道长度，V gs表示栅极和源极间的电压，V th表示阈值电压。
从上式中可以看出，阈值电压的变化影响饱和电流变化，饱和电流的变化最终影响发光层的发光亮度，导致显示面板使人感觉显示不良。
如图3所示，在相关显示面板的技术中，一般会设置铜箔15来屏蔽外部静电，具体的，发光器件10的“背部”依次设置有基板30、缓冲层40和铜箔15，基板30用于对发光器件10定型，缓冲层40用于缓冲和粘接作用，铜箔15接地可以把发光器件10的“背部”电荷及时导走，起到消除静电的作用。然而由于基板30和缓冲层40均为绝缘材料制成，所以该屏蔽结构无法将基板30和发光器件10之间、基板30和缓冲层40之间的静电屏蔽，导致对发光器件10“背部”的静电屏蔽不彻底，使得屏蔽效果不佳，遗留的静电还是容易影响显示效果，甚至还会击伤驱动电路。
在相关终端的技术中，如图4所示，手机的盖板20通过粘接胶91与中框90连接，粘接胶91为绝缘材质，盖板20和中框90围成容纳腔，发光器件10位于容纳腔内，各部件之间不具备导电性。当盖板20在使用过程中摩擦产生静电后，一方面静电容易在盖板20的外表面富集，容易让用户的手指接触到静电，影响使用体验，另一方面静电容易从盖板20的外表面迁移到发光器件10的“背部”，从而影响驱动电路的阈值电压，进一步影响发光亮度和显示效果。
实施例一
为了解决上述问题，本申请提供一种显示面板，该显示面板100可应用于电子设备，其中，电子设备可以包括但不限于为手机、平板电脑、笔记本电脑、超级移动个人计算机(ultra-mobile personal computer，简称为UMPC)、手持计算机、对讲机、上网本、POS机、个人数字助理(personal digital assistant，简称为PDA)、可穿戴设备、虚拟现实设备等具有显示面板100的移动或固定终端，在本实施例中，电子设备是以手机为例进行的说明。
具体的，如图5所示，该显示面板100可以包括发光器件10和盖板20，盖板20盖设在发光器件10的发光面一侧，盖板20背离发光器件10的一侧设置第一屏蔽件50，第一屏蔽件50接地。该显示面板100还包括导电件60，发光器件10和第一屏蔽件50之间设置有基板30和缓冲层40，导电件60电性连接发光器件10和第一屏蔽件50。这样通过导电件60将发光器件10的“背部”一侧的静电可以传导给第一屏蔽件50，即发光器件10远离盖板20的一侧，发光器件10和基板30之间、基板30和缓冲层40之间的静电可以及时传导给第一屏蔽件50，避免静电在发光器件10的“背部”富集，从而影响驱动电路的正常工作。
需要说明的是，将第一屏蔽件50接地即就是将第一屏蔽件50与手机中的负极电性连接，这样可以使静电及时通过第一屏蔽件50流入负极，避免静电影响驱动电路。
需要说明的是，本申请中的第一屏蔽件50为铜箔，铜箔是一种阴质性电解材料，具有较宽的温度使用范围，具有优良的导通性，可以提供较好的电磁屏蔽以及抗静电效果。
在一种可能的实现方式中，如图6所示，基板30靠近发光器件10一侧的表面可以设置有第一导电层61，基板30靠近缓冲层40一侧的表面可以设置有第二导电层62，基板30上还可以开设有第一过孔64，第一过孔64连通第一导电层61和第二导电层62。第一过孔64内设置有第三导电层63，第三导电层63的两端分别与第一导电层61和第二导电层62电性连接。
设置第一导电层61使基板30和发光器件10之间的静电可以通过第一导电层61进行传导，设置第二导电层62使基板30和缓冲层40之间的静电可以通过第二导电层62进行传导，设置第三导电层63使第一导电层61和第二导电层62的静电可以通过第三导电层63传导。具体的，基板30和发光器件10之间的静电的传导路径可以依次是第一导电层61、第三导电层63、第二导电层62、缓冲层40、第一屏蔽件50；基板30和缓冲层40之间的静电的传导路径可以依次是第二导电层62、缓冲层40、第一屏蔽件50；缓冲层40和第一屏蔽件50之间的静电的传导路径可以直接传导给第一屏蔽件50。
在一种可能的实现方式中，缓冲层40可以为导电层，这样缓冲层40可以将第三导电层63和第二导电层62的静电直接传导给第一屏蔽件50。
在一种可能的实现方式中，缓冲层40可以为泡棉胶，泡棉胶的厚度可以介于50-100um之间，这样可以尽可能降低显示面板100的厚度。泡棉胶内可以掺杂有导电金属，泡棉胶的两侧可以均设置有导电胶。这样可以通过泡棉胶把第一屏蔽件50和基板30进行粘接，给泡棉胶两侧设置导电胶，内部掺杂导电金属的方式使泡棉胶既可以起粘接和缓冲的作用，还可以起导电的作用。
需要说明的是，泡棉胶是以乙烯-醋酸乙烯酯共聚物(ethylene-vinyl acetate copolymer，简称为EVA)或者是聚乙烯(polyethylene，简称为PE)泡棉为基材在其一面或两面涂以溶剂型(或热熔型)压敏胶再复以离型纸制造而成，泡棉胶具有出色的密封性，出色的抗压缩变形性，可以保证配件得到长期的防震保护，具有阻燃性且不含有害有毒物质，不会污染设备，对金属不具有腐蚀性，此外还具有优秀的浸润性，容易粘接，易于制作便于冲切。具体的，在粘贴前应清除基板30和发光器件10表面的灰尘或油迹，保持干燥，粘贴时工作温度不宜低于10℃，且粘贴后应静置24h。
需要说明的是，泡棉胶内掺杂的导电金属可以是镍、铜或铝等，使泡棉胶具有导电的功能，本申请实施例对导电金属的具体种类不作限制。
在一种可能的实现方式中，缓冲层40可以为绝缘层。在绝缘层的两侧可以设置粘接胶，这样缓冲层40可以起缓冲和粘接的作用。
在一种可能的实现方式中，导电件60还可以包括第四导电层，缓冲层40上设置有第二过孔，第四导电层设置在第二过孔内。这样可以通过第四导电层将第二导电层62和第三导电层63与第一屏蔽件50连通，便于静电及时导出。
需要说明的是，第一过孔64内填充第三导电层63的主要作用是使第一导电层61和第二导电层62实现电性导通，第二过孔内填充第四导电层的主要作用是使第二导电层62和第一屏蔽件50实现电性导通，这样便于不同导电层的静电可以快速传导给第一屏蔽件50，加强导电件60和第一屏蔽件50的静电屏蔽效果。具体的，第一过孔64和第二过孔的数量可以是多个，并且可以均匀布置在基板30和缓冲层40上，这样可以使上下层之间的导电效果更好。
在一种可能的实现方式中，如图7所示，导电件60还可以包括第五导电层65，第五导电层65位于发光器件10的侧边上。具体的，第五导电层65可以设置在发光器件10的外围，且第五导电层65可以依次连通发光器件10、基板30、缓冲层40和第一屏蔽件50。由于盖板20摩擦产生的静电会通过发光器件10的侧边迁移到发光器件10的“背部”，这样可以使迁移的静电直接通过第五导电层65传导给第一屏蔽件50，避免静电迁移到发光器件10的“背部”，进而影响发光器件10的正常工作。另一方面，第五导电层65也可以使第一导电层61、第二导电层62、缓冲层40和第一屏蔽件50相互导通，便于静电快速传导至第一屏蔽件50上。
需要说明的是，第五导电层65可以是聚(3，4-亚乙二氧基噻吩)-聚(苯乙烯磺酸)、聚乙撑二氧噻吩-聚(苯乙烯磺酸盐)等无机物，也可以是银桨、油墨、铝、铜、金等金属，本申请实施例对第五导电层65的具体材料不作限制。
具体的，第五导电层65的阻抗介于0-1×10 10欧姆，阻抗位于上述范围内，可以保证第五导电层65将静电及时传导，避免静电停留富集。
在一种可能的实现方式中，第一导电层61、第二导电层62和第三导电层63的阻抗介于0-1×10 10欧姆，阻抗位于上述范围内，可以保证第一导电层61、第二导电层62和第三导电层63将静电及时传导，避免静电停留富集。
具体的，第一导电层61、第二导电层62、第三导电层63的材质可以为氧化铟锡。
需要说明的是，氧化铟锡(Indium tin oxide，简称为ITO)是一种铟(III族)氧化物(In 2O 3)和锡(IV族)氧化物(SnO 2)的混合物。具有良好的导电性和透明性，在薄膜状时为透明无色，在块状态时呈黄偏灰色，ITO通常有两个性能指标：电阻率和透光率，ITO的电阻率和透光率分别由In 2O 3与Sn 2O 3之比例来控制。氧化铟锡镀膜可以采用电子束蒸发、物理气相沉积、溅射沉积的方法沉积到基板30的表面。
具体的，可以采用磁控溅射的方法，磁控溅射是物理气相沉积的一种，具有设备简单、易于控制、镀膜面积大和附着力强等优点，磁控溅射的工作原理是：电子在电场E的作用下，在飞向基片过程中与氩原子发生碰撞，使其电离产生出Ar正离子和新的电子；新电子飞向基片，Ar离子在电场作用下加速飞向阴极靶，并以高能量轰击靶表面，使靶材发生溅射。在溅射粒子中，中性的靶原子或分子沉积在基片上形成薄膜，而产生的二次电子会受到电场和磁场作用，产生E(电场)×B(磁场)所指的方向漂移，其运动轨迹近似于一条摆线。若为环形磁场，则电子就以近似摆线形式在靶表面做圆周运动，它们的运动路径不仅很长，而且被束缚在靠近靶表面的等离子体区域内，并且在该区域中电离出大量的Ar来轰击靶材，从而实现了高的沉积速率。随着碰撞次数的增加，二次电子的能量消耗殆尽，逐渐远离靶表面，并在电场E的作用下最终沉积在基片上。由于该电子的能量很低，传递给基片的能量很小，致使基片温升较低。
在一种可能的实现方式中，缓冲层40的阻抗介于0-1×10 10欧姆，这样可以保证缓冲层40能将静电及时导出，避免静电停留富集。
这里需要说明的是，在第一导电层61、第二导电层62、第三导电层63、第四导电层、第五导电层65和缓冲层40的设置过程中，应该尽可能保证每个导电层的导电结构均匀，使每个导电层的阻抗均匀，避免不同区域的阻抗值差距较大，如果每个导电层不同区域的阻抗差距较大，导致阻抗较小的区域的静电易传导出去，而阻抗较大的区域的静电相对不 易传导出去，或者传导过程较慢，这样也会导致传导较慢的静电影响发光器件10的驱动电路，从而影响发光效果。
在本申请实施例中，显示面板100可以是柔性OLED，也可以是硬性OLED，也可以是LCD，本申请实施例对显示面板100的具体类型不作限制。
OLED主要是通过电场驱动，有机半导体材料和发光材料通过过载流子注入和复合后实现发光。从本质上来说，就是通过ITO玻璃透明电极作为器件阳极，金属电极作为阴极，通过电源驱动，将电子从阴极传输到电子传输层，空穴从阳极注入到空穴传输层，之后迁移到发光层，二者相遇后产生激子，让发光分子激发，经过辐射后产生光源。
需要说明的是，在柔性OLED中，基板30可以是具有可弯曲的塑料基板，例如聚对苯二甲酸乙二醇酯(polyethylene terephthalate，简称为PET)薄膜或聚酰亚胺(Polyimide，简称为PI)，厚度可以是50-150um，这样可以最大程度降低显示面板100的厚度。在封装时，柔性OLED采用聚合物盖板配合特殊薄膜贴合进行封装，能使屏幕保持弯曲能力和折叠特性，具有高可靠性。在硬性OLED中，基板30可以是玻璃基板。
需要说明的是，显示面板100还可以包括触控模组，触控模组可以位于盖板20和发光器件10之间，触控模组用于接收用户输入的触摸信息。
本申请实施例提供的显示面板100，通过在基板30和缓冲层40中设置导电件60，使发光器件10和缓冲层40、缓冲层40和基板30之间的静电可以通过导电件60和第一屏蔽件50及时导出，避免静电在发光器件10的“背部”富集，不仅具有静电屏蔽效果好，还具有工艺改动小，难度小，成本低等优势。
实施例二
为了解决上述问题，本申请提供一种显示装置，该显示装置200即可以是手机、平板电脑、笔记本电脑、UMPC、手持计算机、对讲机、上网本、POS机、PDA、可穿戴设备、虚拟现实设备等具有显示面板100的移动或固定终端，也可以是用作室内外通用照明、背光源、装饰照明灯，甚至可以是富有艺术性的柔性发光墙纸、可单色或彩色发光的窗户、可穿戴的发光警示牌等，在本实施例中，如图11所示，显示装置200是以手机为例进行的说明。
具体的，如图8所示，该显示装置200可以包括发光器件10和盖板20，盖板20盖设在发光器件10的发光面一侧，盖板20靠近发光器件10的一侧设置有第二屏蔽件70，第二屏蔽件70接地。如图9所示，盖板20上设置有第六导电层80，第六导电层80位于盖板20靠近发光器件10的一侧，第六导电层80和第二屏蔽件70电性连接。
需要说明的是，将第二屏蔽件70接地即就是将第二屏蔽件70与手机中的负极电性连接，这样可以使静电及时通过第二屏蔽件70流入负极，避免静电影响驱动电路。
通过设置第二屏蔽件70，使盖板20上的静电可以通过第二屏蔽件70及时导出，避免静电在盖板20上富集，一方面可以避免静电对用户造成影响，另一方面防止静电从盖板20上向发光器件10的“背部”迁移，从而影响发光器件10的驱动电路的正常工作和发光效果，通过设置第六导电层80，使盖板20上的静电可以通过第六导电层80可以及时传导到第二屏蔽件70上，避免静电在盖板20上富集以及向发光器件10的“背部”迁移，避免影响驱动电路的正常工作，提升显示装置200对静电的屏蔽效果。
在一种可能的实现方式中，显示装置200还包括中框90，中框90设置在盖板20靠近发光器件10的一侧，盖板20盖合在中框90上，盖板20和中框90围成容纳腔，发光器件10设置在容纳腔内。中框90形成第二屏蔽件70。
这样把中框90设置为第二屏蔽件70，可以合理利用现有部件结构，减少零件的设置数量，丰富中框90的功能和作用。使中框90不仅可以作为手机的框架，也还可以对手机上的静电进行屏蔽，提高手机的静电屏蔽效果，避免静电影响显示面板100的显示效果。
需要说明的是，也可以在手机的内部设置导电装置，导电装置的一端和第六导电层80电性连接，导电装置的另一端接地，本申请实施例对第二屏蔽件70的具体设置方式不作限制。
在一种可能的实现方式中，中框90和盖板20之间设置有导电胶92，导电胶92连接中框90和盖板20。
这样不仅可以通过导电胶92将中框90和盖板20连接起来，还可以使中框90和盖板20的连接部位具有导电能力，且通过导电胶92对静电进行传导。
需要说明的是，导电胶是一种固化或干燥后具有一定导电性的胶粘剂。它可以将多种导电材料连接在一起，使被连接材料间形成电的通路。导电胶在固化或干燥前，导电粒子在胶粘剂中是分离存在的，相互间没有连续接触，因而处于绝缘状态。导电胶固化或干燥后，由于溶剂的挥发和胶粘剂的固化而引起胶粘剂体积的收缩，使导电粒子相互间呈稳定的连续状态，因而表现出导电性。
需要说明的是，按照固化体系，导电胶又可分为室温固化导电胶、中温固化导电胶、高温固化导电胶、紫外光固化导电胶等。室温固化导电胶较不稳定，室温储存时体积电阻率容易发生变化。高温导电胶高温固化时金属粒子易氧化，固化时间要求必须较短才能满足导电胶的要求。应用较多的是中温固化导电胶(低于150℃)，其固化温度适中，与电子元器件的耐温能力和使用温度相匹配，力学性能也较优异，所以应用较广泛。导电胶主要由树脂基体、导电填料和稀释剂等组成。基体主要包括环氧树脂、丙烯酸酯树脂、聚氯酯等。导电填料可以是金、银、铜、铝、锌、铁、镍的粉末和油墨及一些导电化合物。常用的溶剂(或稀释剂)一般应具有较大的分子量，挥发较慢，并且分子结构中应含有极性结构如碳一氧极性链段等。除树脂基体、导电填料和稀释剂外，导电胶其他成分和胶黏剂一样，还包括交联剂、偶联剂、防腐剂、增韧剂和触变剂等。
在一种可能的实现方式中，中框90可以为金属件，第六导电层80与中框90电性连接。这样使中框90本身具有导电能力，可以作为静电的传导介质和接地媒介。
在一种可能的实现方式中，中框90可以为绝缘件，中框90靠近盖板20的一侧可以设置有第七导电层，第七导电层和第六导电层80电性连接。这样可以通过第七导电层将静电传导至接地电极上。
具体的，第七导电层可以是ITO，采用磁控溅射的方法设置在中框90上。
需要说明的是，中框90的材质可以是玻璃、塑胶或陶瓷等，采用玻璃时，手机跌落易发生断裂，采用塑胶时，塑胶表面的平整度、表面处理后的质感易影响手机的外观，采用陶瓷时，易增加手机的重量。此外，中框90可以采用纤维增强复合材料，其中，增强纤维可以包括但不限于为玻璃纤维、碳纤维、氮化硼纤维、碳化硅纤维、氧化铝纤维、硼纤维及氧化锆纤维、芳纶纤维或超高分子量聚乙烯纤维，基体材料可以为塑料基体。本申 请实施例对中框90的具体材质不作限制。
在一种可能的实现方式中，第六导电层80的材质可以为油墨，油墨中掺杂有导电金属。
这样可以通过掺杂导电金属降低第六导电层80的阻抗，提高第六导电层80的导电性能。导电金属可以是金、银、铜、铝、锌、铁、镍的粉末，本申请实施例对导电金属的具体种类不作限制。
需要说明的是，如图12所示，手机还可以包括电池1、电路板2和后盖3，电路板2和电池1可以设置在中框90上，例如电路板2和电池1设置在中框90朝向后盖3的一面上，或者电路板2和电池1可以设置在中框90朝向显示面板100的一面上。
其中，电路板2可以为印刷电路板(Printed circuit board，简称为PCB)，电路板2上具有芯片，例如功率放大器、应用处理器(Central Processing Unit，简称为CPU)、电源管理芯片(Power Management IC，简称为PMIC)或者射频芯片等。
其中，电池1可以通过电源管理模块(未示出)与充电管理模块(未示出)和电路板2相连，电源管理模块接收电池1和/或充电管理模块的输入，并为处理器、内部存储器、外部存储器、显示面板100、摄像头以及通信模块等供电。电源管理模块还可以用于监测电池1容量，电池1循环次数，电池1健康状态(漏电，阻抗)等参数。在其他一些实施例中，电源管理模块也可以设置于电路板2的处理器中。在另一些实施例中，电源管理模块和充电管理模块也可以设置于同一个器件中。
其中，后盖3可以为金属后盖，也可以为玻璃后盖，还可以为塑料后盖，或者，还可以为陶瓷后盖，本申请实施例中，对后盖3材质不作限定。
可以理解的是，本申请实施例示意的结构并不构成对手机的具体限定。在本申请另一些实施例中，手机可以包括比图示更多或更少的部件，或者组合某些部件，或者拆分某些部件，或者不同的部件布置。例如手机还可以包括摄像头(例如前置摄像头和后置摄像头)和闪光灯等器件。
在一种可能的实现方式中，第六导电层80和第七导电层的阻抗介于0-1×10 10欧姆。这样可以使第六导电层80和第七导电层具有传导静电的能力，便于静电传导。
如图10所示，将盖板20和接地中框90导通，阻抗介于0-1×10 10欧姆，可以实现手机整机屏蔽效果，避免静电影响显示面板100的显示效果。
需要说明的是，采用本申请实施例二的静电屏蔽结构时，也可以结合本申请实施例一中的显示面板100的屏蔽结构，这样可以加强屏蔽效果，使手机的屏蔽效果最佳，在图10中，显示面板100的发光器件10和第一屏蔽件50之间也设置有基板30和缓冲层40，且导电件60的设置方式与本申请实施例一中的设置方式相同，只是在图10中为详细示出。
在本申请实施例的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应作广义理解，例如，可以是固定连接，也可以是通过中间媒介间接相连，可以是两个元件内部的连通或者两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
本申请实施例的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
最后应说明的是：以上各实施例仅用以说明本申请实施例的技术方案，而非对其限制；尽管参照前述各实施例对本申请实施例进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请实施例各实施例技术方案的范围。

Claims (16)

  1. 一种显示面板，其特征在于，包括发光器件和盖板，所述盖板盖设在所述发光器件的发光面一侧，所述盖板背离所述发光器件的一侧设置有第一屏蔽件，所述第一屏蔽件接地；
    还包括导电件，所述发光器件和所述第一屏蔽件之间设置有基板和缓冲层，所述导电件电性连接所述发光器件和所述第一屏蔽件。
  2. 根据权利要求1所述的显示面板，其特征在于，所述基板靠近所述发光器件一侧的表面设置有第一导电层，所述基板靠近所述缓冲层一侧的表面设置有第二导电层，所述基板上开设有第一过孔，所述第一过孔连通所述第一导电层和所述第二导电层；
    所述第一过孔内设置有第三导电层，所述第三导电层的两端分别与所述第一导电层和所述第二导电层电性连接；
    所述第一导电层、所述第二导电层和所述第三导电层形成所述导电件。
  3. 根据权利要求1或2所述的显示面板，其特征在于，所述缓冲层为导电层。
  4. 根据权利要求3所述的显示面板，其特征在于，所述缓冲层为泡棉胶，所述泡棉胶内掺杂有导电金属；
    所述泡棉胶的两侧均设置有导电胶。
  5. 根据权利要求1或2所述的显示面板，其特征在于，所述缓冲层为绝缘层。
  6. 根据权利要求5所述的显示面板，其特征在于，所述导电件包括第四导电层，所述缓冲层上设置有第二过孔，所述第四导电层设置在所述第二过孔内。
  7. 根据权利要求1-6中任一项所述的显示面板，其特征在于，所述导电件包括第五导电层，所述第五导电层位于所述发光器件的侧边上；
    所述第五导电层的阻抗介于0-1×10 10欧姆。
  8. 根据权利要求2所述的显示面板，其特征在于，所述第一导电层、所述第二导电层和所述第三导电层的阻抗介于0-1×10 10欧姆；
    所述第一导电层、所述第二导电层、所述第三导电层的材质为氧化铟锡。
  9. 根据权利要求3或4所述的显示面板，其特征在于，所述缓冲层的阻抗介于0-1×10 10欧姆。
  10. 一种显示装置，其特征在于，包括发光器件和盖板，所述盖板盖设在所述发光器件的发光面一侧，所述盖板靠近所述发光器件的一侧设置有第二屏蔽件，所述第二屏蔽件接地；
    所述盖板上设置有第六导电层，所述第六导电层位于所述盖板靠近所述发光器件的一侧，所述第六导电层和所述第二屏蔽件电性连接。
  11. 根据权利要求10所述的显示装置，其特征在于，所述显示装置包括中框，所述中框设置在所述盖板靠近所述发光器件的一侧，所述盖板盖合在所述中框上，所述盖板和所述中框围成容纳腔，所述发光器件设置在所述容纳腔内；
    所述中框形成所述第二屏蔽件。
  12. 根据权利要求11所述的显示装置，其特征在于，所述中框和所述盖板之间设置有导电胶，所述导电胶连接所述中框和所述盖板。
  13. 根据权利要求12所述的显示装置，其特征在于，所述中框为金属件，所述第六 导电层与所述中框电性连接。
  14. 根据权利要求12所述的显示装置，其特征在于，所述中框为绝缘件，所述中框靠近所述盖板的一侧设置有第七导电层，所述第七导电层和所述第六导电层电性连接。
  15. 根据权利要求10-14中任一项所述的显示装置，其特征在于，所述第六导电层的材质为油墨，所述油墨中掺杂有导电金属。
  16. 根据权利要求14所述的显示装置，其特征在于，所述第六导电层和所述第七导电层的阻抗介于0-1×10 10欧姆。
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