WO2020077716A1 - 触控面板和显示装置 - Google Patents

触控面板和显示装置 Download PDF

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Publication number
WO2020077716A1
WO2020077716A1 PCT/CN2018/115585 CN2018115585W WO2020077716A1 WO 2020077716 A1 WO2020077716 A1 WO 2020077716A1 CN 2018115585 W CN2018115585 W CN 2018115585W WO 2020077716 A1 WO2020077716 A1 WO 2020077716A1
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Prior art keywords
capacitive
layer
integrated
film
touch panel
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PCT/CN2018/115585
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English (en)
French (fr)
Inventor
马成序
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惠州市华星光电技术有限公司
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Publication of WO2020077716A1 publication Critical patent/WO2020077716A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means

Definitions

  • the invention relates to the field of electronic display, and in particular to a touch panel and a display device.
  • CTP Capacitive Touch Panel
  • the capacitive touch pad is integrated into the display panel in a plug-in manner, and the capacitive touch pad needs to be combined with the rest of the display panel by gel, which has high requirements on the process
  • the process will greatly affect the yield of the panel display unit, and the processing cost is relatively high, which limits the large-scale application of the touch panel.
  • the invention provides a touch panel and a display device, to solve the technical problem of low yield and high cost caused by the capacitive touch panel needing to be externally integrated into the display panel.
  • a touch panel including:
  • a polarizing structure located above the color film layer
  • a protective layer located above the polarizing structure wherein,
  • the polarizing structure has a first surface adjacent to the color film layer and a second surface adjacent to the protective layer, and a first capacitor electrode is integrated on at least one of the first surface and the second surface Board;
  • a second capacitor plate is integrated on the other of the first surface and the second surface of the polarizing structure.
  • the touch panel further includes a capacitive functional film between the polarizing structure and the protective layer, a second capacitive electrode plate is integrated on the surface of the capacitive functional film; wherein, the first capacitive electrode plate and the second The capacitor plates are parallel to each other and have the same area.
  • the first capacitor plate is integrated on the second surface
  • the capacitor functional film is a glass film
  • a second capacitor plate is integrated on the surface of the glass film.
  • the glass film has a first glass surface adjacent to the polarizing structure and a second glass surface adjacent to the protective layer, and the second capacitor plate is integrated in the On the first glass surface.
  • the glass film is bonded between the polarizing structure and the protective layer through a capacitive OCA optical adhesive.
  • the first capacitor plate is integrated on the second surface
  • the capacitor functional film is an organic polymer film
  • a second capacitor plate is integrated on the surface of the organic polymer film.
  • the organic polymer film has a first organic surface adjacent to the polarizing structure and a second organic surface adjacent to the protective layer, the second capacitor plate is integrated in On the first organic surface.
  • the organic polymer film is bonded between the polarizing structure and the protective layer through a capacitive OCA optical adhesive.
  • the material of the first capacitor plate and the second capacitor plate is indium tin oxide, and the first surface and the second surface are covered by a coating method.
  • a touch panel which includes:
  • a polarizing structure located above the color film layer
  • a protective layer located above the polarizing structure wherein,
  • the polarizing structure has a first surface adjacent to the color film layer and a second surface adjacent to the protective layer, at least one of the first surface and the second surface is integrated with a first capacitor electrode Board;
  • a second capacitor plate is integrated on the other of the first surface and the second surface of the polarizing structure.
  • the touch panel further includes a capacitive functional film between the polarizing structure and the protective layer, and a second capacitive electrode plate is integrated on the surface of the capacitive functional film.
  • the first capacitive plate and the second capacitive plate are parallel to each other and have the same area.
  • the first capacitor plate is integrated on the second surface
  • the capacitor functional film is a glass film
  • a second capacitor plate is integrated on the surface of the glass film.
  • the glass film has a first glass surface adjacent to the polarizing structure and a second glass surface adjacent to the protective layer, and the second capacitor plate is integrated in the On the first glass surface.
  • the glass film is bonded between the polarizing structure and the protective layer through a capacitive OCA optical adhesive.
  • the first capacitor plate is integrated on the second surface
  • the capacitor functional film is an organic polymer film
  • a second capacitor plate is integrated on the surface of the organic polymer film.
  • the organic polymer film has a first organic surface adjacent to the polarizing structure and a second organic surface adjacent to the protective layer, the second capacitor plate is integrated in On the first organic surface.
  • the organic polymer film is bonded between the polarizing structure and the protective layer through a capacitive OCA optical adhesive.
  • the material of the first capacitor plate and the second capacitor plate is indium tin oxide, and the first surface and the second surface are covered by a coating method.
  • the present invention also provides a display device, which includes a touch panel, the touch panel includes:
  • a polarizing structure located above the color film layer
  • a protective layer located above the polarizing structure wherein,
  • the polarizing structure has a first surface adjacent to the color film layer and a second surface adjacent to the protective layer, and a first capacitor electrode is integrated on at least one of the first surface and the second surface Board;
  • a second capacitor plate is integrated on the other of the first surface and the second surface of the polarizing structure.
  • the touch panel further includes a capacitive functional film between the polarizing structure and the protective layer, and a second capacitive electrode plate is integrated on the surface of the capacitive functional film.
  • the beneficial effects of the present invention are: by integrating at least one of the two polar plates of the touch capacitor on the surface of the polarizing structure, one or two layers of glass film or organic polymer film for integrating the capacitive polar plate are reduced. Since the polar plate of the touch-sensing capacitor is directly integrated into the polarized structure, it replaces the externally mounted capacitor structure in the prior art, which reduces the impact of the externally connected structure on the product yield. Therefore, the present invention reduces the complexity of the process and greatly reduces the cost.
  • FIG. 1 is a schematic diagram of a polarizing structure in a specific embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a polarizing structure integrated with a first capacitive electrode plate in a specific embodiment of the present invention
  • FIG. 3 is a schematic diagram of a polarizing structure integrating a first capacitive electrode plate and a second capacitive electrode plate in another specific embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a display device having a polarizing structure integrated with a first capacitive electrode plate and a second capacitive electrode plate in a specific embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a display device having a polarizing structure integrated with a first capacitive electrode plate in a specific embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a display device having a polarizing structure integrated with a first capacitive electrode plate in another specific embodiment of the present invention.
  • the present invention provides a touch panel and a display device to solve the technical problems of low yield and high cost caused by the capacitive touch panel being required to be externally integrated into the display panel.
  • the present invention provides a touch panel, including:
  • a polarizing structure 140 located above the color film layer 170;
  • the polarizing structure 140 has a first surface adjacent to the color film layer 170 and a second surface adjacent to the protective layer 110, at least one of the first surface and the second surface is integrated with A capacitive plate 130; a second capacitive plate 150 is integrated on the other of the first surface and the second surface of the polarizing structure 140; or
  • the touch panel further includes a capacitive functional film between the polarizing structure 140 and the protective layer 110, and a second capacitive electrode plate is integrated on the surface of the capacitive functional film.
  • the first capacitive electrode plate and the second capacitive electrode plate are parallel to each other and have the same area.
  • the structure of the polarizing structure 140 shown in FIG. 1 includes a polarizing layer 220 and protective layers 210 adhered to both sides of the polarizing layer 220.
  • the material of the polarizing layer 220 is polyvinyl alcohol, or PVA. Since PVA is easily hydrolyzed, in order to protect the physical properties of the polarizing film, a protective film is compounded on both sides of the polarizing layer 220.
  • cellulose triacetate, TAC is used as the material of the protective film 210.
  • TAC has high light transmittance, good water resistance, and at the same time has a certain mechanical strength, and is the preferred material for the protective film 210.
  • the material of the first capacitor plate 150 and the second capacitor plate 130 is indium tin oxide, and the first surface and the second surface are covered by a coating method On, that is coated on the protective film 210.
  • the thickness of the indium tin oxide in the present invention is only a few thousand angstroms. Due to the high indium oxide transmittance and strong conductivity of tin oxide, the indium tin oxide can be perfectly used for the capacitive electrode of the touch display film board.
  • the method of coating indium tin oxide is not limited to various methods such as sputtering and evaporation, and will not be repeated here.
  • the polarizing structure 140 coated with the first capacitive electrode plate 150 and the second capacitive electrode plate 130 is connected to the protective layer 110 through the first adhesive layer 120 and connected to the color film layer 170 through the second adhesive layer 160.
  • the first adhesive layer 120 and the second adhesive layer 160 may cover the entire surface of the polarizing structure 140, or may only cover a part of the surface of the polarizing structure 140.
  • the polarizing structure 140 and the adjacent structure not covered by the adhesive layer There is a gap between them, which can be used to absorb the pressure generated during touch, and the liquid crystal below is distorted under the influence of touch pressure, which affects the display effect.
  • the first adhesive layer 120 and the second adhesive layer 160 may be OCA (Optically Clear Adhesive) optical adhesive.
  • OCA optical adhesive is a double-sided adhesive tape without matrix material. Its advantages are clarity, high light transmittance, high adhesion, high weather resistance, water resistance, high temperature resistance, UV resistance, controlled thickness, providing uniformity The distance between them will not cause yellowing, peeling and deterioration problems for a long time. It is the best adhesive for touch screen.
  • the first adhesive layer 120 and the second adhesive layer 160 may also use other adhesives, which will not be repeated here.
  • the glass film or organic polymer film used for integrating the capacitive polar plate is reduced. Since the polar plate of the touch-sensing capacitor is directly integrated into the polarized structure, it replaces the externally mounted capacitor structure in the prior art, which reduces the impact of the externally connected structure on the product yield. Therefore, the present invention reduces the complexity of the process and greatly reduces the cost.
  • the present invention also provides another embodiment, wherein the polarizing structure 140 only integrates the first capacitor plate 150, as shown in FIG. 3.
  • the glass film has a first glass surface adjacent to the polarizing structure and a second glass surface adjacent to the protective layer, and the second capacitive electrode plate is integrated on the first glass surface.
  • the glass film is bonded between the polarizing structure and the protective layer through a capacitive OCA optical adhesive.
  • FIG. 5 is a schematic structural diagram of a display device having a polarizing structure 140 integrated with a first capacitive electrode plate 150 in this embodiment.
  • the first capacitive plate 150 is integrated on the second surface, and the second capacitive plate 130 is integrated on the surface of the protective layer 110 adjacent to the polarizing structure 140.
  • the protective layer 110 is used to replace the glass film to integrate the second capacitor electrode plate, which can also replace the plug-in capacitor structure in the prior art and reduce the impact of the plug-in structure on the product yield. Therefore, the present invention reduces the complexity of the process and greatly reduces the cost.
  • FIG. 6 is a schematic structural diagram of a display device having a polarizing structure integrated with a first capacitive electrode plate in another specific embodiment of the present invention, wherein the first capacitive electrode plate 150 is integrated on the second surface
  • the touch panel further includes an organic polymer film 114 between the polarizing structure 140 and the protective layer 110, and a second capacitor plate 130 is integrated on the surface of the organic polymer film.
  • the organic polymer film 114 has a first organic surface adjacent to the polarizing structure 140 and a second organic surface adjacent to the protective layer, the second capacitor plate 130 is integrated in the first organic On the surface.
  • the organic polymer film 114 is adhered between the polarizing structure and the protective layer through the third adhesive layer 112.
  • the third adhesive layer 112 may also be OCA optical adhesive.
  • OCA optical adhesive is a double-sided adhesive tape without matrix material. Its advantages are clarity, high light transmittance, high adhesion, high weather resistance, water resistance, high temperature resistance, UV resistance, controlled thickness, providing uniformity The distance between them will not cause yellowing, peeling and deterioration problems for a long time. It is the best adhesive for touch screen.
  • the first adhesive layer 120 and the second adhesive layer 160 may also use other adhesives, which will not be repeated here.
  • the present invention also provides a display device, which includes a touch panel, the touch panel includes:
  • a polarizing structure 140 located above the color film layer 170;
  • the polarizing structure 140 has a first surface adjacent to the color film layer 170 and a second surface adjacent to the protective layer 110, at least one of the first surface and the second surface is integrated with A capacitive plate 130; a second capacitive plate 150 is integrated on the other of the first surface and the second surface of the polarizing structure 140; or
  • the touch panel further includes a capacitive functional film between the polarizing structure 140 and the protective layer 110, and a second capacitive electrode plate is integrated on the surface of the capacitive functional film.
  • the structure of the polarizing structure 140 shown in FIG. 1 includes a polarizing layer 220 and protective layers 210 adhered to both sides of the polarizing layer 220.
  • the material of the polarizing layer 220 is polyvinyl alcohol, or PVA. Since PVA is easily hydrolyzed, in order to protect the physical properties of the polarizing film, a protective film is compounded on both sides of the polarizing layer 220.
  • cellulose triacetate, TAC is used as the material of the protective film 210.
  • TAC has high light transmittance, good water resistance, and at the same time has a certain mechanical strength, and is the preferred material for the protective film 210.
  • the material of the first capacitor plate 150 and the second capacitor plate 130 is indium tin oxide, and the first surface and the second surface are covered by a coating method On, that is coated on the protective film 210.
  • the thickness of the indium tin oxide in the present invention is only a few thousand angstroms. Due to the high indium oxide transmittance and strong conductivity of tin oxide, the indium tin oxide can be perfectly used for the capacitive electrode of the touch display film board.
  • the method of coating indium tin oxide is not limited to various methods such as sputtering and evaporation, and will not be repeated here.
  • the polarizing structure 140 coated with the first capacitive electrode plate 150 and the second capacitive electrode plate 130 is connected to the protective layer 110 through the first adhesive layer 120 and connected to the color film layer 170 through the second adhesive layer 160.
  • the first adhesive layer 120 and the second adhesive layer 160 may cover the entire surface of the polarizing structure 140, or may only cover a part of the surface of the polarizing structure 140.
  • the polarizing structure 140 and the adjacent structure not covered by the adhesive layer There is a gap between them, which can be used to absorb the pressure generated during touch, and the liquid crystal below is distorted under the influence of touch pressure, which affects the display effect.
  • the first adhesive layer 120 and the second adhesive layer 160 may be OCA optical adhesive.
  • OCA optical adhesive is a double-sided adhesive tape without matrix material. Its advantages are clarity, high light transmittance, high adhesion, high weather resistance, water resistance, high temperature resistance, UV resistance, controlled thickness, providing uniform The distance between them will not cause yellowing, peeling and deterioration problems for a long time. It is the best adhesive for touch screen.
  • the first adhesive layer 120 and the second adhesive layer 160 may also use other adhesives, which will not be repeated here.
  • the glass film or organic polymer film used for integrating the capacitive polar plate is reduced. Since the polar plate of the touch-sensing capacitor is directly integrated into the polarized structure, it replaces the externally mounted capacitor structure in the prior art, which reduces the impact of the externally connected structure on the product yield. Therefore, the present invention reduces the complexity of the process and greatly reduces the cost.
  • the present invention also provides another embodiment, wherein the polarizing structure 140 only integrates the first capacitor plate 150, as shown in FIG. 3.
  • the glass film has a first glass surface adjacent to the polarizing structure and a second glass surface adjacent to the protective layer, and the second capacitive electrode plate is integrated on the first glass surface.
  • the glass film is bonded between the polarizing structure and the protective layer through a capacitive OCA optical adhesive.
  • FIG. 5 is a schematic structural diagram of a display device having a polarizing structure 140 integrated with a first capacitive electrode plate 150 in this embodiment.
  • the first capacitive plate 150 is integrated on the second surface, and the second capacitive plate 130 is integrated on the surface of the protective layer 110 adjacent to the polarizing structure 140.
  • the protective layer 110 is used to replace the glass film to integrate the second capacitor electrode plate, which can also replace the plug-in capacitor structure in the prior art and reduce the impact of the plug-in structure on the product yield. Therefore, the present invention reduces the complexity of the process and greatly reduces the cost.
  • the first capacitive plate 150 is integrated on the second surface, and the touch panel further includes a polarizing structure 140 and a protective layer 110 Between the organic polymer film 114, a second capacitor plate 130 is integrated on the surface of the organic polymer film.
  • the organic polymer film 114 has a first organic surface adjacent to the polarizing structure 140 and a second organic surface adjacent to the protective layer, the second capacitor plate 130 is integrated in the first organic On the surface.
  • the organic polymer film 114 is adhered between the polarizing structure and the protective layer through the third adhesive layer 112.
  • the third adhesive layer 112 may also be OCA optical adhesive.
  • OCA optical adhesive is a double-sided adhesive tape without matrix material. Its advantages are clarity, high light transmittance, high adhesion, high weather resistance, water resistance, high temperature resistance, UV resistance, controlled thickness, providing uniformity The distance between them will not cause yellowing, peeling and deterioration problems for a long time. It is the best adhesive for touch screen.
  • the first adhesive layer 120 and the second adhesive layer 160 may also use other adhesives, which will not be repeated here.
  • the beneficial effects of the present invention are: by integrating at least one of the two polar plates of the touch capacitor on the surface of the polarizing structure, one or two layers of glass film or organic polymer film for integrating the capacitive polar plate are reduced. Since the polar plate of the touch-sensing capacitor is directly integrated into the polarized structure, it replaces the externally mounted capacitor structure in the prior art, which reduces the impact of the externally connected structure on the product yield. Therefore, the present invention reduces the complexity of the process and greatly reduces the cost.

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  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
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  • General Physics & Mathematics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract

一种触控面板和显示装置，所述触控面板包括：基板（100）；位于所述基板（100）上方的薄膜晶体管层（190）和彩膜层（170）；密封于所述薄膜晶体管层（190）和彩膜层（170）之间的液晶层（180）；位于所述彩膜层（170）上方的偏光结构（140）；位于所述偏光结构（140）上方的保护层（110）；其中，所述偏光结构（140）具有与所述彩膜层（170）相邻的第一表面和与所述保护层（110）相邻的第二表面，所述第一表面和第二表面中的至少一个上集成有第一电容极板（130）。

Description

触控面板和显示装置 技术领域
本发明涉及电子显示领域，尤其涉及一种触控面板和显示装置。
 背景技术
随着大尺寸显示应用的发展，人机互动的需求也越来越多，触控应用作为人机互动中的一个重要媒介得到了广泛的应用。其中，电容触控技术（Capacitive Touch Panel，CTP）只需要触摸而不需要压力来产生信号，具备响应速度快、耐磨损、寿命长、维护成本低等优势，在大尺寸触控领域具有广泛的应用。
 技术问题
现有的触控面板中，电容触控板以外挂的方式结合在显示面板中，需要通过胶体将电容触控板与显示面板中的其余部分组合在一起，对工艺有很高的要求，加工过程会极大的影响面板显示单元的良率，同时加工成本也比较高，限制了触控面板的大规模应用。
 技术解决方案
本发明提供了一种触控面板和显示装置，用以解决电容触控板需要采用外挂的方式结合在显示面板中而导致的良率低和成本高的技术问题。
为解决上述问题，本发明提供的技术方案如下：
一种触控面板，其中包括：
基板；
位于所述基板上方的薄膜晶体管层和彩膜层；
密封于所述薄膜晶体管层和彩膜层之间的液晶层；
位于所述彩膜层上方的偏光结构；
位于所述偏光结构上方的保护层；其中，
所述偏光结构具有与所述彩膜层相邻的第一表面和与所述保护层相邻的第二表面，所述第一表面和第二表面中的至少一个上集成有第一电容极板；其中，
所述偏光结构的第一表面和第二表面中的另一个上集成有第二电容极板；或
所述触控面板还包括位于所述偏光结构和保护层之间的电容功能薄膜，所述电容功能薄膜表面集成有第二电容极板；其中，所述第一电容极板和所述第二电容极板彼此平行且面积相等。
根据本发明的其中一个方面，所述第一电容极板集成在所述第二表面上，所述电容功能薄膜为玻璃薄膜，所述玻璃薄膜表面集成有第二电容极板。
根据本发明的其中一个方面，所述玻璃薄膜具有与所述偏光结构相邻的第一玻璃表面和与所述保护层相邻的第二玻璃表面，所述第二电容极板集成在所述第一玻璃表面上。
根据本发明的其中一个方面，所述玻璃薄膜通过电容式OCA光学胶粘合在所述偏光结构和保护层之间。
根据本发明的其中一个方面，所述第一电容极板集成在所述第二表面上，所述电容功能薄膜为有机聚合物薄膜，所述有机聚合物薄膜表面集成有第二电容极板。
根据本发明的其中一个方面，所述有机聚合物薄膜具有与所述偏光结构相邻的第一有机表面和与所述保护层相邻的第二有机表面，所述第二电容极板集成在所述第一有机表面上。
根据本发明的其中一个方面，所述有机聚合物薄膜通过电容式OCA光学胶粘合在所述偏光结构和保护层之间。
根据本发明的其中一个方面，所述第一电容极板和第二电容极板的材料为氧化铟锡，通过涂覆的方法覆盖所述第一表面和第二表面。
根据本发明的另一方面，还提供了一种触控面板，其中包括：
基板；
位于所述基板上方的薄膜晶体管层和彩膜层；
密封于所述薄膜晶体管层和彩膜层之间的液晶层；
位于所述彩膜层上方的偏光结构；
位于所述偏光结构上方的保护层；其中，
所述偏光结构具有与所述彩膜层相邻的第一表面和与所述保护层相邻的第二表面，所述第一表面和第二表面中的至少一个上集成有第一电容极板；其中，
所述偏光结构的第一表面和第二表面中的另一个上集成有第二电容极板；或
所述触控面板还包括位于所述偏光结构和保护层之间的电容功能薄膜，所述电容功能薄膜表面集成有第二电容极板。
根据本发明的其中一个方面，所述第一电容极板和所述第二电容极板彼此平行且面积相等。
根据本发明的其中一个方面，所述第一电容极板集成在所述第二表面上，所述电容功能薄膜为玻璃薄膜，所述玻璃薄膜表面集成有第二电容极板。
根据本发明的其中一个方面，所述玻璃薄膜具有与所述偏光结构相邻的第一玻璃表面和与所述保护层相邻的第二玻璃表面，所述第二电容极板集成在所述第一玻璃表面上。
根据本发明的其中一个方面，所述玻璃薄膜通过电容式OCA光学胶粘合在所述偏光结构和保护层之间。
根据本发明的其中一个方面，所述第一电容极板集成在所述第二表面上，所述电容功能薄膜为有机聚合物薄膜，所述有机聚合物薄膜表面集成有第二电容极板。
根据本发明的其中一个方面，所述有机聚合物薄膜具有与所述偏光结构相邻的第一有机表面和与所述保护层相邻的第二有机表面，所述第二电容极板集成在所述第一有机表面上。
根据本发明的其中一个方面，所述有机聚合物薄膜通过电容式OCA光学胶粘合在所述偏光结构和保护层之间。
根据本发明的其中一个方面，所述第一电容极板和第二电容极板的材料为氧化铟锡，通过涂覆的方法覆盖所述第一表面和第二表面。
相应的，本发明还提供了一种显示装置，其中包括触控面板，所述触控面板包括：
基板；
位于所述基板上方的薄膜晶体管层和彩膜层；
密封于所述薄膜晶体管层和彩膜层之间的液晶层；
位于所述彩膜层上方的偏光结构；
位于所述偏光结构上方的保护层；其中，
所述偏光结构具有与所述彩膜层相邻的第一表面和与所述保护层相邻的第二表面，所述第一表面和第二表面中的至少一个上集成有第一电容极板；其中，
所述偏光结构的第一表面和第二表面中的另一个上集成有第二电容极板；或
所述触控面板还包括位于所述偏光结构和保护层之间的电容功能薄膜，所述电容功能薄膜表面集成有第二电容极板。
 有益效果
本发明的有益效果为：通过将触控电容的两个极板中的至少一个集成到偏光结构表面，减少了一层或两层用于集成电容极板的玻璃薄膜或有机聚合物薄膜。由于将触控感应电容的极板直接集成到偏光结构上，取代了现有技术中的外挂式电容结构，降低了外挂结构对产品良率的影响。因此，本发明降低了工艺复杂度，大幅度减少了成本。
 附图说明
图1为本发明的一个具体实施方式中的偏光结构的示意图；
图2为本发明的一个具体实施方式中集成有第一电容极板的偏光结构的示意图；
图3为本发明的另一个具体实施方式中集成有第一电容极板和第二电容极板的偏光结构的示意图；
图4为本发明的一个具体实施方式中的具有集成有第一电容极板和第二电容极板的偏光结构的显示装置的结构示意图；
图5为本发明的一个具体实施方式中的具有集成有第一电容极板的偏光结构的显示装置的结构示意图；
图6为本发明的另一个具体实施方式中的具有集成有第一电容极板的偏光结构的显示装置的结构示意图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。在图中，结构相似的单元是用以相同标号表示。
下面将结合附图队本发明进行详细说明。
具体的，本发明提供了一种触控面板和显示装置，用以解决电容触控板需要采用外挂的方式结合在显示面板中而导致的良率低和成本高的技术问题。参见图4，本发明提供了一种触控面板，包括：
基板100；
位于所述基板100上方的薄膜晶体管层190和彩膜层170；
密封于所述薄膜晶体管层190和彩膜层170之间的液晶层180；
位于所述彩膜层170上方的偏光结构140；
位于所述偏光结构140上方的保护层110；其中，
所述偏光结构140具有与所述彩膜层170相邻的第一表面和与所述保护层110相邻的第二表面，所述第一表面和第二表面中的至少一个上集成有第一电容极板130；所述偏光结构140的第一表面和第二表面中的另一个上集成有第二电容极板150；或
所述触控面板还包括位于所述偏光结构140和保护层110之间的电容功能薄膜，所述电容功能薄膜表面集成有第二电容极板。
优选的，所述第一电容极板和所述第二电容极板彼此平行且面积相等。
本实施例中，所示偏光结构140的结构如图1所示，包括偏振层220，以及粘合在所述偏振层220两侧的保护层210。其中，偏振层220的材料为聚乙烯醇，即PVA。由于PVA极易水解，为了保护偏光膜的物理特性，因此在偏振层220的两侧各复合一层保护膜，本事实例中，采用三醋酸纤维素，即TAC，作为保护膜210的材料。TAC具有高光透过率、耐水性好，同时又有一定机械强度，是保护膜210的优选材料。
在本实施例中，具体的，参见图2，所述第一电容极板150和第二电容极板130的材料为氧化铟锡，通过涂覆的方法覆盖所述第一表面和第二表面上，即涂覆在所述保护膜210上方。作为电容极板的材料，本发明中的氧化铟锡的厚度只有几千埃，由于氧化铟透过率高，氧化锡导电能力强，氧化铟锡可以完美的用于触控显示膜的电容极板。在实际中，涂覆氧化铟锡的方法不限于溅射、蒸发等多种方法，在此不再赘述。
涂覆有第一电容极板150和第二电容极板130的偏光结构140通过第一胶层120与保护层110连接在一起，通过第二胶层160与彩膜层170连接在一起。所述第一胶层120和第二胶层160可以覆盖所述偏光结构140的全部表面，也可以只覆盖所述偏光结构140的部分表面，未被胶层覆盖的偏光结构140与相邻结构之间存在缝隙，可用于吸收触控时产生的压力，下方的液晶在触控压力的作用下扭曲变形，影响显示效果。
所述第一胶层120和第二胶层160可以是OCA (Optically Clear Adhesive)光学胶。OCA光学胶是一种无基体材料的双面贴合胶带，其优点是清澈度、高透光性、高黏着力、高耐候、耐水性、耐高温、抗紫外线，受控制的厚度，提供均匀的间距，长时间使用不会产生黄化、剥离及变质的问题，是触控屏之最佳胶粘剂。当然，所述第一胶层120和第二胶层160也可以采用其他粘合剂，在此不再赘述。
本实施例中，通过将触控电容的两个极板中集成到偏光结构表面，减少了用于集成电容极板的玻璃薄膜或有机聚合物薄膜。由于将触控感应电容的极板直接集成到偏光结构上，取代了现有技术中的外挂式电容结构，降低了外挂结构对产品良率的影响。因此，本发明降低了工艺复杂度，大幅度减少了成本。
本发明还提供了另一个实施例，其中所述偏光结构140只集成有第一电容极板150，如图3所示。其中，所述玻璃薄膜具有与所述偏光结构相邻的第一玻璃表面和与所述保护层相邻的第二玻璃表面，所述第二电容极板集成在所述第一玻璃表面上。具体的，所述玻璃薄膜通过电容式OCA光学胶粘合在所述偏光结构和保护层之间。
在本实施例中，由于所述保护层110采用玻璃制成，因此，为了减少一次制膜工艺，降低工艺流程的复杂度，采用保护层110作为用于集成所述第二电容极板130的玻璃薄膜。参见图5，图5为本实施例中的具有集成有第一电容极板150的偏光结构140的显示装置的结构示意图。其中，所述第一电容极板150集成在所述第二表面上，所述第二电容极板130集成在所述保护层110与所述偏光结构140相邻的表面上。
在本实施例中采用保护层110替代玻璃薄膜集成所述第二电容极板，同样能够取代现有技术中的外挂式电容结构，降低了外挂结构对产品良率的影响。因此，本发明降低了工艺复杂度，大幅度减少了成本。
图6为本发明的另一个具体实施方式中的具有集成有第一电容极板的偏光结构的显示装置的结构示意图，其中，所述第一电容极板150集成在所述第二表面上，所述触控面板还包括位于所述偏光结构140和保护层110之间的有机聚合物薄膜114，所述有机聚合物薄膜表面集成有第二电容极板130。所述有机聚合物薄膜114具有与所述偏光结构140相邻的第一有机表面和与所述保护层相邻的第二有机表面，所述第二电容极板130集成在所述第一有机表面上。所述有机聚合物薄膜114通过第三胶层112粘合在所述偏光结构和保护层之间。
所述第三胶层112也可以是OCA光学胶。OCA光学胶是一种无基体材料的双面贴合胶带，其优点是清澈度、高透光性、高黏着力、高耐候、耐水性、耐高温、抗紫外线，受控制的厚度，提供均匀的间距，长时间使用不会产生黄化、剥离及变质的问题，是触控屏之最佳胶粘剂。当然，所述第一胶层120和第二胶层160也可以采用其他粘合剂，在此不再赘述。
相应的，本发明还提供了一种显示装置，其中包括触控面板，所述触控面板包括：
基板100；
位于所述基板100上方的薄膜晶体管层190和彩膜层170；
密封于所述薄膜晶体管层190和彩膜层170之间的液晶层180；
位于所述彩膜层170上方的偏光结构140；
位于所述偏光结构140上方的保护层110；其中，
所述偏光结构140具有与所述彩膜层170相邻的第一表面和与所述保护层110相邻的第二表面，所述第一表面和第二表面中的至少一个上集成有第一电容极板130；所述偏光结构140的第一表面和第二表面中的另一个上集成有第二电容极板150；或
所述触控面板还包括位于所述偏光结构140和保护层110之间的电容功能薄膜，所述电容功能薄膜表面集成有第二电容极板。
本实施例中，所示偏光结构140的结构如图1所示，包括偏振层220，以及粘合在所述偏振层220两侧的保护层210。其中，偏振层220的材料为聚乙烯醇，即PVA。由于PVA极易水解，为了保护偏光膜的物理特性，因此在偏振层220的两侧各复合一层保护膜，本事实例中，采用三醋酸纤维素，即TAC，作为保护膜210的材料。TAC具有高光透过率、耐水性好，同时又有一定机械强度，是保护膜210的优选材料。
在本实施例中，具体的，参见图2，所述第一电容极板150和第二电容极板130的材料为氧化铟锡，通过涂覆的方法覆盖所述第一表面和第二表面上，即涂覆在所述保护膜210上方。作为电容极板的材料，本发明中的氧化铟锡的厚度只有几千埃，由于氧化铟透过率高，氧化锡导电能力强，氧化铟锡可以完美的用于触控显示膜的电容极板。在实际中，涂覆氧化铟锡的方法不限于溅射、蒸发等多种方法，在此不再赘述。
涂覆有第一电容极板150和第二电容极板130的偏光结构140通过第一胶层120与保护层110连接在一起，通过第二胶层160与彩膜层170连接在一起。所述第一胶层120和第二胶层160可以覆盖所述偏光结构140的全部表面，也可以只覆盖所述偏光结构140的部分表面，未被胶层覆盖的偏光结构140与相邻结构之间存在缝隙，可用于吸收触控时产生的压力，下方的液晶在触控压力的作用下扭曲变形，影响显示效果。
所述第一胶层120和第二胶层160可以是OCA光学胶。OCA光学胶是一种无基体材料的双面贴合胶带，其优点是清澈度、高透光性、高黏着力、高耐候、耐水性、耐高温、抗紫外线，受控制的厚度，提供均匀的间距，长时间使用不会产生黄化、剥离及变质的问题，是触控屏之最佳胶粘剂。当然，所述第一胶层120和第二胶层160也可以采用其他粘合剂，在此不再赘述。
本实施例中，通过将触控电容的两个极板中集成到偏光结构表面，减少了用于集成电容极板的玻璃薄膜或有机聚合物薄膜。由于将触控感应电容的极板直接集成到偏光结构上，取代了现有技术中的外挂式电容结构，降低了外挂结构对产品良率的影响。因此，本发明降低了工艺复杂度，大幅度减少了成本。
本发明还提供了另一个实施例，其中所述偏光结构140只集成有第一电容极板150，如图3所示。其中，所述玻璃薄膜具有与所述偏光结构相邻的第一玻璃表面和与所述保护层相邻的第二玻璃表面，所述第二电容极板集成在所述第一玻璃表面上。具体的，所述玻璃薄膜通过电容式OCA光学胶粘合在所述偏光结构和保护层之间。
在本实施例中，由于所述保护层110采用玻璃制成，因此，为了减少一次制膜工艺，降低工艺流程的复杂度，采用保护层110作为用于集成所述第二电容极板130的玻璃薄膜。参见图5，图5为本实施例中的具有集成有第一电容极板150的偏光结构140的显示装置的结构示意图。其中，所述第一电容极板150集成在所述第二表面上，所述第二电容极板130集成在所述保护层110与所述偏光结构140相邻的表面上。
在本实施例中采用保护层110替代玻璃薄膜集成所述第二电容极板，同样能够取代现有技术中的外挂式电容结构，降低了外挂结构对产品良率的影响。因此，本发明降低了工艺复杂度，大幅度减少了成本。
在本发明的另一个实施例中，如图6所示，所述第一电容极板150集成在所述第二表面上，所述触控面板还包括位于所述偏光结构140和保护层110之间的有机聚合物薄膜114，所述有机聚合物薄膜表面集成有第二电容极板130。所述有机聚合物薄膜114具有与所述偏光结构140相邻的第一有机表面和与所述保护层相邻的第二有机表面，所述第二电容极板130集成在所述第一有机表面上。所述有机聚合物薄膜114通过第三胶层112粘合在所述偏光结构和保护层之间。
所述第三胶层112也可以是OCA光学胶。OCA光学胶是一种无基体材料的双面贴合胶带，其优点是清澈度、高透光性、高黏着力、高耐候、耐水性、耐高温、抗紫外线，受控制的厚度，提供均匀的间距，长时间使用不会产生黄化、剥离及变质的问题，是触控屏之最佳胶粘剂。当然，所述第一胶层120和第二胶层160也可以采用其他粘合剂，在此不再赘述。
本发明的有益效果为：通过将触控电容的两个极板中的至少一个集成到偏光结构表面，减少了一层或两层用于集成电容极板的玻璃薄膜或有机聚合物薄膜。由于将触控感应电容的极板直接集成到偏光结构上，取代了现有技术中的外挂式电容结构，降低了外挂结构对产品良率的影响。因此，本发明降低了工艺复杂度，大幅度减少了成本。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (18)

  1. 一种触控面板，其包括：
    基板；
    位于所述基板上方的薄膜晶体管层和彩膜层；
    密封于所述薄膜晶体管层和彩膜层之间的液晶层；
    位于所述彩膜层上方的偏光结构；
    位于所述偏光结构上方的保护层；其中，
    所述偏光结构具有与所述彩膜层相邻的第一表面和与所述保护层相邻的第二表面，所述第一表面和第二表面中的至少一个上集成有第一电容极板；其中，
    所述偏光结构的第一表面和第二表面中的另一个上集成有第二电容极板；或
    所述触控面板还包括位于所述偏光结构和保护层之间的电容功能薄膜，所述电容功能薄膜表面集成有第二电容极板；其中，所述第一电容极板和所述第二电容极板彼此平行且面积相等。
  2. 根据权利要求1所述的触控面板，其中所述第一电容极板集成在所述第二表面上，所述电容功能薄膜为玻璃薄膜，所述玻璃薄膜表面集成有第二电容极板。
  3. 根据权利要求2所述的触控面板，其中所述玻璃薄膜具有与所述偏光结构相邻的第一玻璃表面和与所述保护层相邻的第二玻璃表面，所述第二电容极板集成在所述第一玻璃表面上。
  4. 根据权利要求3所述的触控面板，其中所述玻璃薄膜通过电容式OCA光学胶粘合在所述偏光结构和保护层之间。
  5. 根据权利要求1所述的触控面板，其中所述第一电容极板集成在所述第二表面上，所述电容功能薄膜为有机聚合物薄膜，所述有机聚合物薄膜表面集成有第二电容极板。
  6. 根据权利要求5所述的触控面板，其中所述有机聚合物薄膜具有与所述偏光结构相邻的第一有机表面和与所述保护层相邻的第二有机表面，所述第二电容极板集成在所述第一有机表面上。
  7. 根据权利要求6所述的触控面板，其中所述有机聚合物薄膜通过电容式OCA光学胶粘合在所述偏光结构和保护层之间。
  8. 根据权利要求1所述的触控面板，其中所述第一电容极板和第二电容极板的材料为氧化铟锡，通过涂覆的方法覆盖所述第一表面和第二表面。
  9. 一种触控面板，其包括：
    基板；
    位于所述基板上方的薄膜晶体管层和彩膜层；
    密封于所述薄膜晶体管层和彩膜层之间的液晶层；
    位于所述彩膜层上方的偏光结构；
    位于所述偏光结构上方的保护层；其中，
    所述偏光结构具有与所述彩膜层相邻的第一表面和与所述保护层相邻的第二表面，所述第一表面和第二表面中的至少一个上集成有第一电容极板；其中，
    所述偏光结构的第一表面和第二表面中的另一个上集成有第二电容极板；或
    所述触控面板还包括位于所述偏光结构和保护层之间的电容功能薄膜，所述电容功能薄膜表面集成有第二电容极板。
  10. 根据权利要求9所述的触控面板，其中所述第一电容极板和所述第二电容极板彼此平行且面积相等。
  11. 根据权利要求9所述的触控面板，其中所述第一电容极板集成在所述第二表面上，所述电容功能薄膜为玻璃薄膜，所述玻璃薄膜表面集成有第二电容极板。
  12. 根据权利要求11所述的触控面板，其中所述玻璃薄膜具有与所述偏光结构相邻的第一玻璃表面和与所述保护层相邻的第二玻璃表面，所述第二电容极板集成在所述第一玻璃表面上。
  13. 根据权利要求12所述的触控面板，其中所述玻璃薄膜通过电容式OCA光学胶粘合在所述偏光结构和保护层之间。
  14. 根据权利要求9所述的触控面板，其中所述第一电容极板集成在所述第二表面上，所述电容功能薄膜为有机聚合物薄膜，所述有机聚合物薄膜表面集成有第二电容极板。
  15. 根据权利要求14所述的触控面板，其中所述有机聚合物薄膜具有与所述偏光结构相邻的第一有机表面和与所述保护层相邻的第二有机表面，所述第二电容极板集成在所述第一有机表面上。
  16. 根据权利要求15所述的触控面板，其中所述有机聚合物薄膜通过电容式OCA光学胶粘合在所述偏光结构和保护层之间。
  17. 根据权利要求11所述的触控面板，其中所述第一电容极板和第二电容极板的材料为氧化铟锡，通过涂覆的方法覆盖所述第一表面和第二表面。
  18. 一种显示装置，其中包括触控面板，所述触控面板包括：
    基板；
    位于所述基板上方的薄膜晶体管层和彩膜层；
    密封于所述薄膜晶体管层和彩膜层之间的液晶层；
    位于所述彩膜层上方的偏光结构；
    位于所述偏光结构上方的保护层；其中，
    所述偏光结构具有与所述彩膜层相邻的第一表面和与所述保护层相邻的第二表面，所述第一表面和第二表面中的至少一个上集成有第一电容极板；其中，
    所述偏光结构的第一表面和第二表面中的另一个上集成有第二电容极板；或
    所述触控面板还包括位于所述偏光结构和保护层之间的电容功能薄膜，所述电容功能薄膜表面集成有第二电容极板。
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Citations (4)

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US20120218198A1 (en) * 2011-02-28 2012-08-30 Shin Jae Hun Liquid crystal display device comprising touch screen
CN103543868A (zh) * 2012-07-12 2014-01-29 和鑫光电股份有限公司 触摸板及使用其的液晶触摸屏
CN104063098A (zh) * 2013-03-22 2014-09-24 群创光电股份有限公司 触控式显示装置与其制造方法
CN106980426A (zh) * 2017-05-04 2017-07-25 广东欧珀移动通信有限公司 显示装置、显示屏、触控屏及电子设备

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120218198A1 (en) * 2011-02-28 2012-08-30 Shin Jae Hun Liquid crystal display device comprising touch screen
CN103543868A (zh) * 2012-07-12 2014-01-29 和鑫光电股份有限公司 触摸板及使用其的液晶触摸屏
CN104063098A (zh) * 2013-03-22 2014-09-24 群创光电股份有限公司 触控式显示装置与其制造方法
CN106980426A (zh) * 2017-05-04 2017-07-25 广东欧珀移动通信有限公司 显示装置、显示屏、触控屏及电子设备

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