WO2019079952A1 - Module d'affichage à cristaux liquides à commande tactile antistatique et dispositif électronique - Google Patents

Module d'affichage à cristaux liquides à commande tactile antistatique et dispositif électronique

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Publication number
WO2019079952A1
WO2019079952A1 PCT/CN2017/107375 CN2017107375W WO2019079952A1 WO 2019079952 A1 WO2019079952 A1 WO 2019079952A1 CN 2017107375 W CN2017107375 W CN 2017107375W WO 2019079952 A1 WO2019079952 A1 WO 2019079952A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrostatic discharge
liquid crystal
crystal display
display module
discharge layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/107375
Other languages
English (en)
Chinese (zh)
Inventor
李夏
黄义宏
刘俊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201780065687.9A priority Critical patent/CN109964168A/zh
Priority to PCT/CN2017/107375 priority patent/WO2019079952A1/fr
Publication of WO2019079952A1 publication Critical patent/WO2019079952A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

Definitions

  • the present invention relates to the field of liquid crystal display modules, and in particular, to an antistatic liquid crystal display module and an electronic device.
  • the overlapping in-cell touch structure is a common liquid crystal display module applied to smart terminal devices.
  • the overlapping in-cell liquid crystal display module comprises a cover 11 , an optical glue 12 , a front polarizer 13 , a touch receiving line 14 , a color filter layer 15 , a liquid crystal 16 , and a touch emission trace 17 .
  • the thin film transistor layer 18, the rear polarizer 19, the backlight module 20 and the iron frame 21 are formed.
  • the cross-sensing layer traces of the capacitive touch are respectively located on the two sides of the thin film transistor layer 18 and the color filter layer 15, and are embedded in the liquid crystal display module, and thus are called overlapping in-cell liquid crystal display modules. .
  • the fingerprinting of the cover surface is introduced by the manual operation, and the surface of the cover is coated with a hydrophobic fingerprint-resistant coating.
  • Fluorocarbon materials are the lowest surface-resistant coating materials for commercial materials in the industry, and have excellent anti-dirty properties. As shown in Fig. 2, when the surface of the anti-fingerprint coating 10 is peeled off or rubbed against the surface of the fingerprint-resistant coating, the fluorocarbon material is highly prone to static electricity, and since the fluorine has a very small atomic radius, the electronegativity is extremely large, and the fingerprint-resistant coating is applied.
  • the static electricity on the surface of 10 is not easily released, thereby generating an induced charge on the line of the touch receiving trace 14.
  • the induced charge on the touch receiving trace 14 further generates an induced electric field, which additionally drives the liquid crystal molecules to rotate, forming an abnormal display, such as displaying electrostatic horizontal stripes.
  • the embodiment of the invention provides an anti-static touch liquid crystal display module, which comprises a cover plate, an optical glue, a front polarizer, a touch receiving wire and an iron frame, and the cover plate surface is coated with a fingerprint resistant coating.
  • the anti-fingerprint coating and the touch receiving trace comprise one or more layers of electrostatic discharge layer, which eliminates the amount of static electricity transmitted or induced by the anti-fingerprint coating in the state of friction or tear film, effectively slowing or eliminating the touch.
  • the receiving trace line has an induced charge, thereby effectively slowing down or eliminating the poor display phenomenon of the overlapping in-cell liquid crystal display module.
  • At least one of the one or more layers of electrostatic discharge layers is on the upper surface of the optical glue.
  • At least one of the one or more layers of electrostatic discharge layers is on the upper surface of the front polarizer.
  • At least one of the one or more layers of electrostatic discharge layers is on the lower surface of the front polarizer.
  • the electrostatic discharge layer is a deposited coating or a laminated film.
  • At least one of the one or more layers of electrostatic discharge layers is at least one of a plurality of physical layers.
  • At least one of the plurality of physical layers is an optical glue.
  • the surface resistivity of the electrostatic discharge layer ranges from 1 x 10 5 ohms to 1 x 10 12 ohms.
  • the surface resistivity of the electrostatic discharge layer ranges from 1 x 10 7 ohms to 1 x 10 10 ohms.
  • the electrostatic discharge layer is shorted to the iron frame.
  • the electrostatic discharge layer is short-circuited with the iron frame, including: the electrostatic discharge layer is sized to be in direct contact with the iron frame.
  • the electrostatic discharge layer is short-circuited with the iron frame, and the electrostatic discharge layer is short-circuited with the iron frame by the wire.
  • FIG. 1 is a schematic structural view of a touch liquid crystal display module in the prior art
  • FIG. 2 is a schematic diagram of a horizontal stripe of a spot of a touch liquid crystal display module in the prior art
  • 3A is a schematic structural view of a layer of an electrostatic discharge layer on an upper surface of an optical adhesive according to an embodiment of the present invention
  • 3B is a schematic structural view of another layer of an electrostatic discharge layer on an upper surface of an optical adhesive according to an embodiment of the present invention.
  • 3C is a schematic structural view of another layer of an electrostatic discharge layer on an upper surface of an optical adhesive according to an embodiment of the present invention.
  • FIG. 4A is a schematic structural view of a layer of an electrostatic discharge layer on an upper surface of a front polarizer according to an embodiment of the present invention
  • 4B is a schematic structural view of another layer of an electrostatic discharge layer on an upper surface of a front polarizer according to an embodiment of the present invention.
  • 4C is a schematic structural view of another layer of an electrostatic discharge layer on an upper surface of a front polarizer according to an embodiment of the present invention.
  • 5A is a schematic structural view of a layer of an electrostatic discharge layer on a lower surface of a front polarizer according to an embodiment of the present invention
  • FIG. 5B is a schematic structural diagram of another layer of an electrostatic discharge layer on a lower surface of a front polarizer according to an embodiment of the present invention.
  • 5C is a schematic structural diagram of another layer of an electrostatic discharge layer on a lower surface of a front polarizer according to an embodiment of the present invention.
  • 6A is a schematic structural diagram of selecting an optical adhesive as a layer of an electrostatic discharge layer according to an embodiment of the present invention
  • FIG. 6B is a schematic structural diagram of another optical adhesive selected as an electrostatic discharge layer according to an embodiment of the present invention.
  • 6C is a schematic structural diagram of another optical adhesive selected as an electrostatic discharge layer according to an embodiment of the present invention.
  • FIG. 7A is a schematic structural view of a two-layer electrostatic discharge layer according to an embodiment of the present invention.
  • FIG. 7B is a schematic structural diagram of another two-layer electrostatic discharge layer according to an embodiment of the present invention.
  • Embodiments of the present invention provide a liquid crystal display module including a fingerprint resistant coating, a cover plate, an optical adhesive, a front polarizer, a touch receiving trace, a color filter layer, a liquid crystal, and a touch emission trace. , thin film transistor layer, rear polarizer, backlight module and iron frame.
  • Embodiments of the present invention eliminate the amount of static electricity that is transmitted or induced by the anti-fingerprint coating in a rubbed or tear-off state by providing one or more layers of an electrostatic discharge layer between the fingerprint-resistant coating and the touch-receiving trace.
  • one or more layers of the electrostatic discharge layer may be added between the existing physical layers, or one layer may be selected as an electrostatic discharge layer in the existing physical layer.
  • At least one of the one or more layers of electrostatic discharge layers is on the upper surface of the optical glue.
  • FIG. 3A is a schematic structural diagram of a liquid crystal display module according to an embodiment of the present invention.
  • the liquid crystal display module further includes an electrostatic discharge layer 00 outside the existing physical layer, and the electrostatic discharge layer 00 is located on the upper surface of the optical adhesive 12.
  • the electrostatic discharge layer 00 may be located on a lower surface of the cap plate 11.
  • the electrostatic discharge layer is shorted to the iron frame.
  • the iron frame can be an iron frame excellent in electrical conductivity.
  • the short-circuiting manner of the electrostatic discharge layer and the iron frame may be a wire connection.
  • FIG. 3B is a schematic structural diagram of another liquid crystal display module according to an embodiment of the present invention.
  • the electrostatic discharge layer 00 is located on the upper surface of the optical adhesive 12, and is short-circuited with the iron frame 21 by a wire to further release residual charges.
  • the short-circuiting manner of the electrostatic discharge layer and the iron frame may be to increase the size of the electrostatic discharge layer so as to be directly attached to the iron frame to form a short connection.
  • FIG. 3C is a schematic structural diagram of another liquid crystal display module according to an embodiment of the present invention.
  • the size of the electrostatic discharge layer 00 located on the upper surface of the optical adhesive 12 is increased, so that the electrostatic discharge layer 00 and the iron frame 21 are directly attached and short-circuited, thereby further releasing residual charges.
  • the electrostatic discharge layer 00 in Figures 3A-3C is a deposited coating.
  • the deposited coating layer can be formed by various deposition methods such as sputtering, arc evaporation, vapor deposition, and the like. Those skilled in the art can select a suitable deposition method to form a deposited coating layer as an electrostatic discharge layer as needed in the description of the specification.
  • the electrostatic discharge layer 00 in Figures 3A-3C can be a conforming film.
  • the bonding film may be a film formed based on a plurality of materials according to various methods, such as a PU film, a TPU film, or the like, and may be attached to a desired surface.
  • the surface resistivity of the electrostatic discharge layer 00 in FIGS. 3A-3C may range from 1 ⁇ 10 5 ohm to 1 ⁇ 10 12 ohm, wherein the surface resistivity is from 1 ⁇ 10 7 ohm to 1 ⁇ 10 10 .
  • the electrostatic release layer in the ohm range has a better electrostatic discharge effect.
  • At least one of the one or more layers of electrostatic discharge layers is on the upper surface of the front polarizer.
  • FIG. 4A is a schematic structural diagram of another liquid crystal display module according to an embodiment of the present invention.
  • the liquid crystal display module further includes an electrostatic discharge layer 00 outside the existing physical layer, and the electrostatic discharge layer 00 is located on the upper surface of the front polarizer 13.
  • the electrostatic discharge layer 00 may be located on the lower surface of the optical adhesive 12.
  • the electrostatic discharge layer is shorted to the iron frame.
  • the iron frame can be an iron frame with excellent electrical conductivity.
  • the short-circuiting manner of the electrostatic discharge layer and the iron frame may be wire shorting.
  • FIG. 4B is a schematic structural diagram of another liquid crystal display module according to an embodiment of the present invention.
  • the electrostatic discharge layer 00 is located on the upper surface of the front polarizer 13, and is short-circuited with the iron frame 21 by a wire to further release residual charges.
  • the short-circuiting manner of the electrostatic discharge layer and the iron frame may be to increase the size of the electrostatic discharge layer so as to be directly attached to the iron frame to form a short connection.
  • FIG. 4C is a schematic structural diagram of another liquid crystal display module according to an embodiment of the present invention. As shown in FIG. 4C, the size of the electrostatic discharge layer 00 located on the upper surface of the front polarizer 13 is increased, so that the electrostatic discharge layer 00 is short-circuited with the iron frame 21, thereby further releasing residual charges.
  • the electrostatic discharge layer 00 in Figures 4A-4C is a deposited coating.
  • the deposited coating layer can be formed by various deposition methods such as sputtering, arc evaporation, vapor deposition, and the like. Those skilled in the art can select a suitable deposition method to form a deposited coating layer as an electrostatic discharge layer as needed in the description of the specification.
  • the electrostatic discharge layer 00 in Figures 4A-4C is a conforming film.
  • the bonding film may be a film formed based on a plurality of materials according to various methods, such as a PU film, a TPU film, or the like, and may be attached to a desired surface.
  • the surface resistivity of the electrostatic discharge layer 00 in FIGS. 4A-4C ranges from 1 ⁇ 10 5 ohm to 1 ⁇ 10 12 ohm, wherein the surface resistivity is from 1 ⁇ 10 7 ohm to 1 ⁇ 10 10 ohm.
  • the electrostatic discharge layer of the range has a better electrostatic discharge effect.
  • At least one of the one or more layers of electrostatic discharge layers is on the lower surface of the front polarizer.
  • FIG. 5A is a schematic structural diagram of another liquid crystal display module according to an embodiment of the present invention.
  • the liquid crystal display module further includes an electrostatic discharge layer 00 outside the existing physical layer, and the electrostatic discharge layer 00 is located on the lower surface of the front polarizer 13.
  • the electrostatic discharge layer 00 can be located on the upper surface of the touch receiving trace 14.
  • the electrostatic discharge layer is shorted to the iron frame.
  • the iron frame can be an iron frame with excellent electrical conductivity.
  • the short-circuiting manner of the electrostatic discharge layer and the iron frame may be wire shorting.
  • FIG. 5B is a schematic structural diagram of another liquid crystal display module according to an embodiment of the present invention.
  • the electrostatic discharge layer 00 is located on the lower surface of the front polarizer 13, and is short-circuited with the iron frame 21 by a wire to further release residual charges.
  • the short-circuiting manner of the electrostatic discharge layer and the iron frame may be to increase the size of the electrostatic discharge layer so as to be directly attached to the iron frame to form a short connection.
  • FIG. 5C is a schematic structural diagram of another liquid crystal display module according to an embodiment of the present invention. As shown in FIG. 5C, the size of the electrostatic discharge layer 00 located on the lower surface of the front polarizer 13 is increased, so that the electrostatic discharge layer 00 is short-circuited with the iron frame 21, thereby further releasing residual charges.
  • the electrostatic discharge layer 00 in Figures 5A-5C is a deposited coating.
  • the deposited coating layer can be formed by various deposition methods such as sputtering, arc evaporation, vapor deposition, and the like. Those skilled in the art can select a suitable deposition method to form a deposited coating layer as an electrostatic discharge layer as needed in the description of the specification.
  • the electrostatic discharge layer 00 in Figures 5A-5C is a conforming film.
  • the bonding film may be a film formed based on a plurality of materials according to various methods, such as a PU film, a TPU film, or the like, and may be attached to a desired surface.
  • the surface resistivity of the electrostatic discharge layer 00 in FIGS. 5A-5C ranges from 1 ⁇ 10 5 ohm to 1 ⁇ 10 12 ohm, wherein the surface resistivity is from 1 ⁇ 10 7 ohm to 1 ⁇ 10 10 ohm.
  • the electrostatic discharge layer of the range has a better electrostatic discharge effect.
  • At least one of the existing physical layers is selected as the electrostatic discharge layer.
  • FIG. 6 is a schematic structural diagram of a liquid crystal display module according to an embodiment of the present invention.
  • the resistivity of the optical adhesive 12 is adjusted to simultaneously act as an electrostatic discharge layer.
  • FIG. 6B is a schematic structural diagram of another liquid crystal display module according to an embodiment of the present invention.
  • the short-circuit connection between the electrostatic discharge layer and the iron frame may be short-circuiting of the wires.
  • the optical glue acts on the electrostatic discharge layer 12 at the same time, and is short-circuited with the iron frame through a wire to further release the residue. Charge.
  • FIG. 6C is a schematic structural diagram of another liquid crystal display module according to an embodiment of the present invention.
  • the size of the electrostatic discharge layer may be increased to be short-circuited to the iron frame, as shown in FIG. 6C, the size of the electrostatic discharge layer 12 is increased, so that the electrostatic discharge layer 12 is attached to the iron frame 21. Shorted to further release residual charge.
  • the surface resistivity of the electrostatic discharge layer 12 in Figures 6A-6C ranges from 1 x 10 5 ohms to 1 x 10 12 ohms with a surface resistivity of from 1 x 10 7 ohms to 1 x 10 10 ohms.
  • the electrostatic discharge layer of the range has a better electrostatic discharge effect.
  • the existing physical layer is directly used as the electrostatic discharge layer, and no additional structure is required.
  • multiple layers of electrostatic discharge layers can be provided to further release residual charge.
  • FIG. 7A is a schematic structural diagram of a liquid crystal display module according to an embodiment of the present invention.
  • FIG. 7B is a schematic structural diagram of another liquid crystal display module according to an embodiment of the present invention.
  • the liquid crystal display module includes two electrostatic discharge layers, wherein the first electrostatic discharge layer 00 is an additional layer outside the existing physical layer, and is located on the lower surface of the front polarizer 13,
  • the second electrostatic discharge layer is realized by the optical glue 12.
  • the first electrostatic discharge layer 00 and the second electrostatic discharge layer 12 are short-circuited with the iron frame by wires, respectively.
  • the first electrostatic discharge layer 00 may be located on the upper surface of the touch receiving trace 14 .
  • the liquid crystal display module includes two electrostatic discharge layers, wherein the first electrostatic discharge layer 00 is located on the upper surface of the front polarizer 13, and the second electrostatic discharge layer 01 is located on the upper surface of the optical adhesive 12.
  • the first electrostatic discharge layer 00 and the second electrostatic discharge layer 01 are short-circuited with the iron frame by wires, respectively.
  • the first electrostatic discharge layer 00 may be located on the lower surface of the optical adhesive 12.
  • the second electrostatic discharge layer 01 may be located on a lower surface of the cap plate 11.
  • the multilayer electrostatic discharge layer may be selected in combination with any one or more of the embodiments as shown in FIGS. 3A-3C, 4A-4C, 5A-5C or 6A-6C to further release residual charge.
  • the surface resistivity of the electrostatic discharge layer ranges from 1 ⁇ 10 5 ohm to 1 ⁇ 10 12 ohm, and the surface resistivity is in the range of 1 ⁇ 10 7 ohm to 1 ⁇ 10 10 ohm. Electrostatic discharge is better.
  • the embodiment of the present invention further provides an electronic device, including the antistatic touch liquid crystal display module of any of the above.
  • the electronic device can be a mobile phone or a wearable device such as a watch, glasses, or the like.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Liquid Crystal (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Polarising Elements (AREA)

Abstract

La présente invention concerne un module d'affichage à cristaux liquides à commande tactile antistatique, comprenant de multiples couches physiques, lesdites multiples couches physiques comprenant une plaque de recouvrement (11), un ciment optique (12), un polariseur (13), un câblage de réception de commande tactile (14) et un cadre de fer (21), la surface de la plaque de recouvrement (11) étant revêtue d'un revêtement résistant aux empreintes digitales (10), et une ou plusieurs couche(s) de décharge électrostatique (00) étant comprise(s) entre le revêtement résistant aux empreintes digitales (10) et le câblage de réception de commande tactile (14). La charge induite du câblage de réception de commande tactile (14) peut être efficacement réduite ou éliminée, ce qui permet de réduire ou d'éliminer efficacement le phénomène d'affichage médiocre d'un module d'affichage à cristaux liquides intégré et chevauché.
PCT/CN2017/107375 2017-10-23 2017-10-23 Module d'affichage à cristaux liquides à commande tactile antistatique et dispositif électronique Ceased WO2019079952A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201780065687.9A CN109964168A (zh) 2017-10-23 2017-10-23 一种防静电的触控液晶显示模组和电子设备
PCT/CN2017/107375 WO2019079952A1 (fr) 2017-10-23 2017-10-23 Module d'affichage à cristaux liquides à commande tactile antistatique et dispositif électronique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/107375 WO2019079952A1 (fr) 2017-10-23 2017-10-23 Module d'affichage à cristaux liquides à commande tactile antistatique et dispositif électronique

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WO2019079952A1 true WO2019079952A1 (fr) 2019-05-02

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CN110564217A (zh) * 2019-05-16 2019-12-13 华为技术有限公司 一种电子设备、显示屏、玻璃盖板及玻璃盖板的制造方法
CN115588367A (zh) * 2022-10-08 2023-01-10 合肥维信诺科技有限公司 显示面板和显示装置
US12356549B2 (en) 2021-11-24 2025-07-08 Chengdu Boe Optoelectronics Technology Co., Ltd. Display panel and display apparatus

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CN111984154B (zh) * 2020-09-22 2023-08-01 业成科技（成都）有限公司 触控模组及其制备方法

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CN110564217A (zh) * 2019-05-16 2019-12-13 华为技术有限公司 一种电子设备、显示屏、玻璃盖板及玻璃盖板的制造方法
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CN115588367A (zh) * 2022-10-08 2023-01-10 合肥维信诺科技有限公司 显示面板和显示装置

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