WO2017067301A1 - 显示装置 - Google Patents

显示装置 Download PDF

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Publication number
WO2017067301A1
WO2017067301A1 PCT/CN2016/094989 CN2016094989W WO2017067301A1 WO 2017067301 A1 WO2017067301 A1 WO 2017067301A1 CN 2016094989 W CN2016094989 W CN 2016094989W WO 2017067301 A1 WO2017067301 A1 WO 2017067301A1
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WO
WIPO (PCT)
Prior art keywords
display device
antistatic layer
electrically connected
circuit
display
Prior art date
Application number
PCT/CN2016/094989
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English (en)
French (fr)
Inventor
李沛
赵婷婷
王谦
周昱
Original Assignee
京东方科技集团股份有限公司
北京京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 北京京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/508,583 priority Critical patent/US10241356B2/en
Publication of WO2017067301A1 publication Critical patent/WO2017067301A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/42—Applications of coated or impregnated materials
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives
    • C09K3/1436—Composite particles, e.g. coated particles
    • C09K3/1445—Composite particles, e.g. coated particles the coating consisting exclusively of metals
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136204—Arrangements to prevent high voltage or static electricity failures
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/85—Photosensitive materials characterised by the base or auxiliary layers characterised by antistatic additives or coatings
    • G03C1/853—Inorganic compounds, e.g. metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
    • H01L27/0203—Particular design considerations for integrated circuits
    • H01L27/0248—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
    • H01L27/0203—Particular design considerations for integrated circuits
    • H01L27/0248—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection
    • H01L27/0251—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices
    • H01L27/0288—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices using passive elements as protective elements, e.g. resistors, capacitors, inductors, spark-gaps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
    • H10K30/451—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising a metal-semiconductor-metal [m-s-m] structure
    • 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
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/50—Forming devices by joining two substrates together, e.g. lamination techniques
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2202/00—Materials and properties
    • G02F2202/22—Antistatic materials or arrangements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/549—Organic PV cells

Definitions

  • Embodiments of the present disclosure relate to a display device.
  • ESD Electro Static Discharge
  • a common antistatic protection method is to provide an antistatic layer formed of an ITO material on a color filter substrate or a polarizer of a display device, a transparent cover plate on the antistatic layer to protect the antistatic layer, and an antistatic layer and The ground pad on the array substrate of the display device is electrically connected, and the generated static electricity is led out to the ground pad through the antistatic layer.
  • the antistatic layer covers the display area, the refractive index of the antistatic layer formed by the ITO material is different from the refractive index of the substrate of the glass material in the display device, causing the light to refract when passing through the antistatic layer, resulting in The loss of light causes a decrease in light transmission.
  • Another antistatic protection method in the conventional technology is to provide an antistatic ring around the display area on the color filter substrate.
  • the antistatic ring In order to ensure the charge transfer performance of the antistatic ring, the antistatic ring needs to have a certain line width, but for a narrow frame display device, the area of the color film substrate edge where the antistatic ring can be disposed is narrow, and the charge transfer performance cannot be set well. Anti-static ring.
  • At least one embodiment of the present disclosure provides a display device including a display panel and a cover plate stacked with the display panel, the cover plate being disposed on one side of the display panel There is an antistatic layer surrounding the display area of the display device, and the antistatic layer is grounded.
  • the antistatic layer surrounds the display area, that is, the display The area is not covered by the antistatic layer, and the problem of a decrease in light transmittance caused by the coverage of the display area by the antistatic layer in the conventional technique is avoided, so that the antistatic layer in the present invention does not cause a decrease in light transmittance; Since the antistatic layer of the invention is disposed on the cover plate, the size of the cover plate is larger than that of the color filter substrate of the display device, so that the area of the cover edge for providing the antistatic layer is wider, and the charge transfer performance can be set. Anti-static layer to meet the needs of narrow frames.
  • the anti-static protection function is realized under the premise of not reducing the light transmittance and adapting to the needs of the narrow bezel display device.
  • FIG. 1 is a schematic structural view of a display device according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural view of a display device according to another embodiment of the present disclosure.
  • FIG. 3 is a schematic structural diagram of a display device according to still another embodiment of the present disclosure.
  • FIG. 4 is a schematic structural view of an antistatic layer of a display device according to an embodiment of the present disclosure
  • FIG. 5 is a schematic structural view of an antistatic layer of still another display device according to an embodiment of the present disclosure.
  • At least one embodiment of the present disclosure provides a display device 1 including a display panel 10, a cover 20, and an antistatic layer 3, wherein the cover 20 is superimposed with the display panel 10, as shown in FIGS.
  • the antistatic layer 3 is disposed on a side of the cover 20 facing the display panel 1.
  • the antistatic layer 3 surrounds the display area AA of the display device, and the antistatic layer 3 is grounded.
  • the antistatic layer 3 is grounded, so that static electricity generated in the display device 1 can be released by the antistatic layer 3, so that the display device 1 avoids the ESD phenomenon. Since the antistatic layer 3 surrounds the display area AA, that is, the display area AA is not covered by the antistatic layer 3, the problem that the light transmittance of the display area AA covered by the antistatic layer is reduced is also avoided;
  • the antistatic layer 3 is disposed on the cover 20, and the size of the cover 20 is larger than the size of the color filter substrate 12 of the display device, so that the edge of the cover 20 can be provided with a wide area for providing the antistatic layer 3, and the charge transfer can be set. A good performance antistatic layer 3. Therefore, the above display device 1 can prevent the EDS phenomenon without reducing the light transmittance and satisfying the need of a narrow bezel.
  • the size of the array substrate 13 is generally smaller than the size of the color filter substrate 12 , and the cover 20 needs to completely cover the display panel 10 .
  • the size of the cover 20 is greater than or equal to the size of the array substrate 13, so that the size of the cover 20 is larger than the size of the color filter substrate 12.
  • the electrostatic protection method of the antistatic ring surrounding the display area on the color film substrate in the conventional technology since the distance between the edge of the color film substrate and the display area is relatively close, in order to avoid the inadvertent entry of the antistatic ring into the display area during production Internally, the production precision of the antistatic ring is high, which makes the production of the antistatic ring difficult.
  • the display device provided in this embodiment since the size of the cover 20 is large, the distance between the edge and the display area AA is relatively long, so the requirement for the precision of the antistatic layer 3 is lowered, thereby reducing the antistatic The manufacturing process of layer 3 is difficult.
  • the display device in the embodiment may be configured such that one side of the display panel 10 is bonded to the cover 20 through the optical adhesive 8 and the cover 20 is a transparent cover.
  • the display panel 10 The other side is bonded to the backlight 16 by the double-sided tape 15;
  • the display panel 10 includes: a color filter substrate 12, an array substrate 13, an upper polarizer 11 and a lower polarizer 14, wherein the color filter substrate 12 and the array substrate 13 are oppositely disposed.
  • the upper polarizer 11 is disposed on a side of the color filter substrate 12 facing away from the array substrate 13, and the lower polarizer 14 is disposed on a side of the array substrate 13 facing away from the color filter substrate 12.
  • only the display device having the above configuration is taken as an example, and the configuration of the display device according to the present embodiment is not limited thereto.
  • the antistatic layer 3 may be an annular structure formed by a conductive line, which surrounds the display area AA, thereby releasing static electricity generated throughout the display area AA, since the antistatic layer 3 is electrically conductive.
  • the line is formed, and the line width of the conductive line is small, so the antistatic layer of this structure is particularly suitable for the needs of a narrow bezel or even an ultra-narrow bezel display device.
  • the antistatic layer 3 formed by the conductive traces is not closed, thereby avoiding the disturbing effect of the closed coil on the signals received and transmitted by the display device.
  • the antistatic layer 3 formed by the conductive lines can also be closed, which is not limited by the embodiments of the present disclosure.
  • the foregoing antistatic layer 3 formed of a conductive line it can be fabricated by a photolithography process.
  • the antistatic layer 3 may also be a planar structure covering the frame area BB of the display device, and the planar structure surrounds the display area AA, thereby releasing static electricity generated throughout the display area AA due to the antistatic layer.
  • 3 is a planar structure having a large area, so that electrostatic charges can be quickly released through the antistatic layer 3.
  • the antistatic layer 3 of the aforementioned planar structure can be produced by a silk screen or a pasting process. It should be noted that the border area BB surrounds the display area AA.
  • the display panel 10 is provided with a ground pad 17 , and the ground pad 17 can be disposed on the edge of the array substrate 13 of the display panel 10 , and the antistatic layer 3 and the ground pad 17 are electrically connected. Connected to achieve grounding of the antistatic layer 3. For example, referring to FIG. 1 , the display panel 10 is provided with a ground pad 17 , and the ground pad 17 can be disposed on the edge of the array substrate 13 of the display panel 10 , and the antistatic layer 3 and the ground pad 17 are electrically connected. Connected to achieve grounding of the antistatic layer 3. For example, referring to FIG.
  • the antistatic layer 3 and the ground pad 17 can be bonded by a conductive double-sided tape to achieve electrical connection therebetween; and the conductive paste can be passed between the antistatic layer 3 and the ground pad 17
  • the electrical connection, the conductive silver paste can be disposed between the antistatic layer 3 and the ground pad 17 by using a dispensing process; of course, the antistatic layer 3 and the ground pad 17 can also be electrically connected through other conductive members.
  • an electrostatic protection method for forming an antistatic layer on an upper polarizer or a color filter substrate of a display device is generally achieved by electrically conducting a silver paste at an edge of the antistatic layer to achieve grounding of the antistatic layer. Because the conductive silver paste is unable to enter the display area to affect the light transmittance of the display area, and the edge of the upper polarizer or the color film substrate is closer to the display area, the conductive silver paste is opposite. The precision of the process is high, which makes the process of grounding the antistatic layer more difficult.
  • the edge of the cover 20 is far away from the display area AA, the area where the conductive double-sided tape 4 or the conductive silver paste can be disposed is large, so that the setting can be lowered.
  • the precision requirement of the conductive double-sided tape 4 or the conductive silver paste which reduces the process difficulty of realizing the grounding of the anti-static layer 3.
  • the display panel 1 is electrically connected to the first circuit 18, the first circuit 18 is provided with a grounding end, and the antistatic layer 3 is electrically connected to the second circuit 5,
  • the second circuit 5 is electrically connected to the ground of the first circuit 18 to achieve grounding of the antistatic layer 3.
  • the first circuit 18 can be bound to the display panel 1.
  • the second circuit 5 can be directly bonded to the antistatic layer 3.
  • the second circuit 5 can also be attached to the antistatic layer 3 through the conductive double-sided tape.
  • the edge of the cover 20 is far from the display area AA, the area where the second circuit 5 can be disposed is large, so that an antistatic layer is formed on the upper polarizer or the color film substrate of the display device in the conventional art, and
  • the method of grounding the antistatic layer 3 according to the embodiment of the conductive silver paste at the edge of the antistatic layer also has the advantage of low process difficulty.
  • the display device 1 may further include a metal casing 6 accommodating the display panel 10.
  • the antistatic layer 3 may be directly electrically connected to the metal casing 6, due to the metal machine.
  • the case 6 itself is grounded, so the antistatic layer 3 is also grounded.
  • the antistatic layer 3 can be electrically connected to the metal casing 6 through the conductive foam 7; of course, the antistatic layer 3 can also pass other conductive members, such as conductive double-sided tape, conductive silver paste, etc., and metal.
  • the casing 6 is electrically connected.
  • the antistatic layer 3 may be made of at least one of copper, molybdenum, aluminum, or silver, etc., to ensure that the antistatic layer 3 has good charge transport properties.
  • the technical solution according to the embodiments of the present disclosure can be applied to a display device of a liquid crystal type, for example, an On-Cell (the touch function layer is between the substrate and the polarizer) and an In-cell (the touch function layer is between the two substrates) ) such as an in-line liquid crystal display device.
  • a display device of a liquid crystal type for example, an On-Cell (the touch function layer is between the substrate and the polarizer) and an In-cell (the touch function layer is between the two substrates) ) such as an in-line liquid crystal display device.
  • an On-Cell the touch function layer is between the substrate and the polarizer
  • In-cell the touch function layer is between the two substrates
  • the display device can adopt the technical solution according to an embodiment of the present disclosure.
  • the display device is applicable to any product or component having a display function, such as a television, a display, a movie screen, a mobile phone, a tablet computer, a notebook computer, a digital photo frame, a navigator, and the like.

Abstract

一种显示装置(1)，包括显示面板(10)以及与所述显示面板(10)叠加的盖板(20)，所述盖板(20)朝向所述显示面板(10)的一面上设置有防静电层(3)，所述防静电层(3)环绕所述显示装置(1)的显示区(AA)，且所述防静电层(3)接地。该显示装置(1)能够在既不降低光线透过率，又适应窄边框显示装置的需要的前提下，实现防静电保护功能。

Description

显示装置 技术领域
本公开的实施例涉及一种显示装置。
背景技术
在显示装置在生产及使用过程中，内部会产生静电，所产生的静电如果得到不及时地释放，就会在显示装置内积累，当静电积累到一定量时，会发生瞬间放电，产生大电流，这就是ESD(Electro Static Discharge，静电释放)现象。ESD现象会烧坏显示装置的集成电路或内部线路，导致显示装置无法正常使用，因此需要对显示装置进行防静电保护。
目前常见的防静电保护方式为，在显示装置的彩膜基板或偏光片上设置由ITO材料形成的防静电层，在防静电层上设置透明盖板以保护防静电层，并将防静电层与显示装置的阵列基板上的接地垫电连接，产生的静电通过防静电层引出至接地垫。但是这种方式中，由于防静电层覆盖显示区，ITO材料形成的防静电层的折射率与显示装置中玻璃材质的衬底基板的折射率不同，造成光线经过防静电层时发生折射，造成光线的损失，导致光线透过率下降。
惯常技术中的另一种防静电保护方式使在彩膜基板上设置环绕显示区的防静电环。为保证防静电环的电荷传输性能，防静电环需要具有一定的线宽，但是对于窄边框的显示装置，其彩膜基板边缘可供设置防静电环的区域很窄，无法设置电荷传输性能良好的防静电环。
发明内容
本公开的至少一个实施例提供了一种显示装置，所述显示装置包括显示面板，以及盖板，所述盖板与所述显示面板叠加，所述盖板朝向所述显示面板的一面上设置有防静电层，所述防静电层环绕所述显示装置的显示区，且所述防静电层接地。
在根据本公开实施例的显示装置中，由于防静电层环绕显示区，即显示 区并没有被防静电层覆盖，避免了惯常技术中显示区被防静电层覆盖所引起的光线透过率下降的问题，从而本发明中的防静电层不会引起光线透过率下降；并且，由于本发明中防静电层设置在盖板上，盖板的尺寸是大于显示装置的彩膜基板的，因此盖板边缘可供设置防静电层的区域较宽，能够设置电荷传输性能良好的防静电层，满足窄边框的需要。以在既不降低光线透过率，又适应窄边框显示装置的需要的前提下，实现防静电保护功能。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本公开的一些实施例，而非对本公开的限制。
图1为根据本公开的一个实施例的显示装置的示意性结构图；
图2为根据本公开的另一个实施例的显示装置的示意性结构图；
图3为根据本公开的又一个实施例的显示装置的示意性结构图；
图4为根据本公开的一个实施例的显示装置的防静电层的示意性结构图；
图5为根据本公开实施例的又一个显示装置的防静电层的示意性结构图。
附图标记说明：
1-显示装置                   10-显示面板；
11-上偏光片；                12-彩膜基板；
13-阵列基板；                14-下偏光片；
15-双面胶；                  16-背光源；
17-接地垫；                  18-第一电路；
20-盖板；                    3-防静电层；
4-导电双面胶；               5-第二电路；
6-金属机壳；                 7-导电泡棉；
8-光学胶；                   AA-显示区；
BB-边框区。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
本公开的至少一个实施例提供了一种显示装置1，如图1～3所示，所述显示装置包括显示面板10、盖板20和防静电层3，其中盖板20与显示面板10叠加，防静电层3设置于盖板20朝向显示面板1的一面上，防静电层3环绕显示装置的显示区AA，且防静电层3接地。
上述显示装置1中，防静电层3接地，从而显示装置1中产生的静电能够通过防静电层3释放，使显示装置1避免了ESD现象。由于防静电层3环绕显示区AA，即显示区AA并没有被防静电层3覆盖，因此也就避免了显示区AA被防静电层覆盖所引起的光线透过率下降的问题；并且，由于防静电层3设置在盖板20上，盖板20的尺寸是大于显示装置的彩膜基板12的尺寸的，因此盖板20边缘可供设置防静电层3的区域较宽，能够设置电荷传输性能良好的防静电层3。因此，上述显示装置1能够在既不降低光线透过率，又满足窄边框的需要的前提下，防止EDS现象。
需要说明的是，在显示装置1中，由于阵列基板13上需要绑定线路板，因此通常阵列基板13的尺寸会小于彩膜基板12的尺寸，而盖板20需要完全遮盖显示面板10，因此盖板20的尺寸大于或等于阵列基板13的尺寸，从而盖板20的尺寸是大于彩膜基板12的尺寸的。
对于惯常技术中在彩膜基板上设置环绕显示区的防静电环的静电保护方式，由于彩膜基板边缘与显示区之间的距离较近，为避免防静电环在制作时不慎进入显示区内，对防静电环的制作精度要求较高，造成防静电环的制作难度大。在本实施例所提供的显示装置中，由于盖板20的尺寸较大，其边缘与显示区AA之间的距离较远，因此对防静电层3制作精度的要求降低，从而降低了防静电层3的制作工艺难度。
需要补充说明的是，本实施例中所述的显示装置的结构可为：显示面板10的一面通过光学胶8与盖板20粘接，盖板20为透明盖板，显示面板10 的另一面通过双面胶15粘接有背光源16；显示面板10包括：彩膜基板12、阵列基板13、上偏光片11和下偏光片14，其中彩膜基板12和阵列基板13相对设置，上偏光片11设置于彩膜基板12背向阵列基板13的一侧，下偏光片14设置于阵列基板13背向彩膜基板12的一侧。本实施例中仅以前述结构的显示装置为例进行说明，根据本实施例的显示装置的结构不仅限于此。
如图4所示，防静电层3可为由导电线路所形成的环状结构，该环状结构环绕显示区AA，从而将显示区AA各处产生的静电释放，由于防静电层3由导电线路形成，导电线路的线宽较小，因此这种结构的防静电层尤其适用于窄边框乃至超窄边框显示装置的需要。例如，再次参见图4，由导电线路形成的防静电层3不闭合，从而避免了闭合线圈对显示装置接收和发送的信号的干扰作用。当然，由导电线路形成的防静电层3也可以闭合，本公开的实施例对此并不限定。对于前述由导电线路形成的防静电层3，可以采用光刻工艺制作。
如图5所示，防静电层3也可为覆盖显示装置的边框区BB的面状结构，该面状结构环绕显示区AA，从而将显示区AA各处产生的静电释放，由于防静电层3为面状结构，面积较大，因此静电电荷能够迅速通过防静电层3得到释放。对于前述面状结构的防静电层3，可采用丝印或粘贴工艺制作。需要说明的是，边框区BB围绕显示区AA。
接下来将讨论防静电层3的接地方式。
在本公开的一个实施例中，如图1所示，显示面板10上设置有接地垫17，接地垫17可设置于显示面板10的阵列基板13的边缘，防静电层3与接地垫17电连接，以实现防静电层3的接地。例如，再次参见图1，防静电层3与接地垫17之间可通过导电双面胶粘接，以实现二者的电连接；防静电层3与接地垫17之间还可通过导电银浆电连接，导电银浆可采用点胶工艺设置于防静电层3与接地垫17之间；当然，防静电层3与接地垫17之间也可通过其它导电构件电连接。
值得一提的是，惯常技术中在显示装置的上偏光片或彩膜基板上形成防静电层的静电保护方式，通常通过在防静电层的边缘点导电银浆的方式实现防静电层的接地，由于导电银浆是不能进入显示区影响显示区的光线透过率的，而上偏光片或彩膜基板的边缘与显示区的距离较近，因此对点导电银浆 的过程的精度要求较高，导致实现防静电层接地的工艺难度加大。不同于惯常技术，根据本公开的实施的显示装置，由于盖板20边缘与显示区AA的距离较远，因此可供设置导电双面胶4或者导电银浆的区域较大，从而能够降低设置导电双面胶4或者导电银浆时的精度要求，这也就降低了实现防静电层3接地的工艺难度。
在本公开的一个实施例中，如图2所示，显示面板1上电连接至第一电路18，该第一电路18上设置有接地端，防静电层3电连接至第二电路5，第二电路5与第一电路18的接地端电连接，以实现防静电层3的接地。第一电路18可以绑定至显示面板1，第二电路5可直接绑定于防静电层3上，第二电路5也可通过导电双面胶粘贴于防静电层3上。由于盖板20边缘与显示区AA的距离较远，可供设置第二电路5的区域较大，因此相对于惯常技术中在显示装置的上偏光片或彩膜基板上形成防静电层，并通过在防静电层的边缘点导电银浆实现防静电层的接地的结构，根据该实施例的实现防静电层3接地的方式同样具有工艺难度低的优点。
在本公开的一个实施例中，如图3所示，显示装置1还可包括一容纳显示面板10的金属机壳6，防静电层3可直接与该金属机壳6电连接，由于金属机壳6本身是接地的，因此防静电层3也接地。再次参见图3，防静电层3可通过导电泡棉7与金属机壳6电连接；当然，防静电层3也可通过其它导电构件，如：导电双面胶、导电银浆等，与金属机壳6电连接。
根据本公开实施例的防静电层3可包括铜、钼、铝或银等中的至少一种制成，以保证防静电层3具有良好的电荷传输性能。
根据本公开实施例的技术方案能够适用于液晶类型的显示装置，例如，On-Cell(触控功能层处于基板与偏光片之间)、In-cell(触控功能层处于两片基板之间)等内嵌式液晶显示装置。但是，这并不能对根据本公开的实施例的技术方案的适用范围构成限定，任何其它需要在既不降低光线透过率，又适应窄边框显示装置的需要的前提下，实现防静电保护功能的显示装置，均可以采用根据本公开实施例的技术方案。
需要说明的是，根据本公开实施例的显示装置适用于电视机、显示器、电影银幕、手机、平板电脑、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
以上所述仅是本公开的示范性实施方式，而非用于限制本公开的保护范围，本公开的保护范围由所附的权利要求确定。
本申请要求于2015年10月21日递交的中国专利申请第201510689434.1号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (12)

  1. 一种显示装置，包括显示面板以及与所述显示面板叠加的盖板，其中，所述盖板朝向所述显示面板的一面上设置有防静电层，所述防静电层环绕所述显示装置的显示区，且所述防静电层接地。
  2. 根据权利要求1所述的显示装置，其中，所述防静电层设置在所述显示装置的边框区；或者，
    所述防静电层为由导电线路所形成的环状结构。
  3. 根据权利要求1或2所述的显示装置，其中，所述防静电层构造为闭合结合或不闭合结构。
  4. 根据权利要求1至3中任何一项所述的显示装置，其中，所述显示面板上设置有接地垫，所述防静电层与所述接地垫电连接。
  5. 根据权利要求4所述的显示装置，其中，所述防静电层与所述接地垫之间通过导电双面胶电连接。
  6. 根据权利要求4所述的显示装置，其中，所述防静电层与所述接地垫之间通过导电银浆电连接。
  7. 根据权利要求1至6中任何一项所述的显示装置，其中，所述显示面板电连接至第一电路，所述第一电路上设置有接地端，所述防静电层电连接至第二电路，所述第二电路与所述第一电路的接地端电连接。
  8. 根据权利要求7所述的显示装置，其中，所述第一电路通过绑定的方式电连接至所述显示面板。
  9. 根据权利要求7所述的显示装置，其中，所述防静电层与所述第二电路之间通过绑定的方式电连接。
  10. 根据权利要求7所述的显示装置，其中，所述防静电层与所述第二电路之间通过导电双面胶电连接。
  11. 根据权利要求1至10中任何一项所述的显示装置，其中，所述显示装置还包括容纳所述显示面板的金属机壳，所述防静电层与所述金属机壳电连接。
  12. 根据权利要求11所述的显示装置，其中，所述防静电层通过导电泡棉与所述金属机壳电连接。
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CN104698636A (zh) * 2015-04-01 2015-06-10 上海天马微电子有限公司 一种显示面板和电子设备
CN105319751A (zh) * 2015-10-21 2016-02-10 京东方科技集团股份有限公司 一种显示装置
CN205038423U (zh) * 2015-10-21 2016-02-17 京东方科技集团股份有限公司 一种显示装置

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