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WO2015135299A1 - 触摸显示装置及其制作方法 - Google Patents

触摸显示装置及其制作方法 Download PDF

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Publication number
WO2015135299A1
WO2015135299A1 PCT/CN2014/085296 CN2014085296W WO2015135299A1 WO 2015135299 A1 WO2015135299 A1 WO 2015135299A1 CN 2014085296 W CN2014085296 W CN 2014085296W WO 2015135299 A1 WO2015135299 A1 WO 2015135299A1
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WIPO (PCT)
Prior art keywords
electrode pattern
touch electrode
cover substrate
touch
adhesive layer
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PCT/CN2014/085296
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English (en)
French (fr)
Inventor
张俊瑞
林准焕
Original Assignee
京东方科技集团股份有限公司
成都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, 成都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 US14/437,071 priority Critical patent/US20160246404A1/en
Publication of WO2015135299A1 publication Critical patent/WO2015135299A1/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
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • G02F1/13338—Input devices, e.g. touch panels
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • 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
    • 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
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133331—Cover glasses
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04104—Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger

Definitions

  • Embodiments of the present invention relate to a touch display device and a method of fabricating the same.
  • FIG. 1 The structure of a typical On cell touch display device is as shown in FIG. 1, which includes a display panel 101 and a cover substrate 105.
  • an upper polarizer 103 and a lower polarizer 100 are provided on the upper and lower sides of the liquid crystal display panel 101, respectively.
  • the liquid crystal display panel 101 includes an array substrate 1011, a liquid crystal layer 1012, and a color filter substrate 1013 in this order from bottom to top.
  • a touch electrode pattern 102 is provided between the array substrate 1011 and the upper polarizer 103, and serves as a sensor portion of the touch panel, and a cover substrate 105 is provided above the upper polarizer 103.
  • the cover substrate 105 and the upper polarizer 103 may be bonded together by an OCR adhesive layer 104'.
  • the On cell technology directly forms a touch screen sensing pattern on the upper substrate of the display panel using a transparent electrode, and then uses the bonded cover substrate 105.
  • the pattern has a refractive index difference between the pattern area and the blank where the touch electrode is formed, so that the arrow in FIG. 2 is reflected light under the reflected light, and the touch
  • the pattern of the electrodes is visible, greatly affecting the display quality. Therefore, the pattern of the touch electrode pattern 102 needs to be blanked to reduce the reflection visibility.
  • One of the technical problems to be solved by the present invention is how to overcome the difference in refractive index between the pattern area and the blank area after the touch electrode is patterned in the existing touch display device, so that the touch electrode pattern is visible under the reflected light and the display quality is good. Impact without adding additional processes and costs.
  • a touch display device includes a display panel and a cover substrate stacked in a stack, wherein a surface of the display panel facing the cover substrate is provided with a touch electrode pattern, the touch electrode pattern and the cover substrate Scattering particles are disposed in the adhesive layer between them to scatter the reflected light passing through the touch electrode pattern.
  • a polarizer is attached to a side of the touch electrode pattern on the side of the cover substrate, and the polarizer is attached to the touch electrode pattern through a first adhesive layer, the first bond
  • the scattering particles are disposed in the glue layer.
  • a polarizer is attached to one side of the touch electrode pattern on the side of the cover substrate, and the polarizer is attached to the cover by a second adhesive layer covering the cover substrate.
  • the scattering particles are disposed in the second adhesive layer.
  • the scattering particles are fine particles made of an inorganic material or an organic material.
  • the organic material is one or more of polystyrene, acrylates, and polymethyl methacrylate.
  • the polarizer comprises a lower protective layer, a polarizing layer, an upper protective layer and a surface treatment layer which are laminated.
  • the invention also provides a method for manufacturing a touch display device, comprising:
  • Disposing scattering particles are disposed in the adhesive layer between the touch electrode pattern and the cover substrate to scatter light reflected by the touch electrode pattern;
  • the step of disposing scattering particles in the adhesive layer between the touch electrode pattern and the cover substrate comprises: attaching on a side of the touch electrode pattern on the cover substrate a polarizer, the polarizer being attached to the top of the touch electrode pattern through a first adhesive layer And doping the scattering particles in the first adhesive layer.
  • the step of disposing scattering particles in the adhesive layer between the touch electrode pattern and the cover substrate includes: on a side of the touch electrode pattern on the cover substrate Attaching a polarizer, and the polarizer is attached to the cover substrate through a second adhesive layer covering the cover substrate, and doping the second adhesive layer Scattering particles.
  • the touch display device and the method for manufacturing the touch display device provided by the above technical solution can achieve the purpose of invisible touch shadow pattern, that is, shadow elimination.
  • the method of disposing scattering particles in the adhesive layer between the touch electrode pattern and the cover substrate causes the reflected light of the touch electrode pattern to scatter through the scattering particles in the adhesive layer to reduce the touch electrode pattern.
  • the directionality of the reflected light of the pattern area and the blank area thereby reducing the visibility of the human eye of the pattern of the transparent electrode layer and avoiding the influence on the display quality; at the same time, the above-mentioned scattering particles can be formed by the doping method. Compared with the coating process in the technology, the process is simple and the cost is low.
  • FIG. 1 is a schematic structural view of a conventional On cell touch display device
  • FIG. 2 is a view of an optical path of a touch electrode pattern in a conventional On cell touch display device
  • FIG. 4 is a view of an optical path of a touch electrode pattern in a touch display device according to an embodiment of the present invention.
  • FIG 5 is a view of an optical path of a touch electrode pattern in a touch display device according to Embodiment 2 of the present invention.
  • a touch display device includes a display panel and a cover substrate which are laminated, and a surface of the display panel facing the cover substrate is provided with a touch electrode pattern.
  • scattering particles are disposed in the adhesive layer between the upper surface of the touch electrode pattern and the cover substrate, which will be specifically described below by way of two embodiments.
  • the display panel is a liquid crystal display panel.
  • the touch display device of the present embodiment has a polarizer attached to the top of the touch electrode pattern 102.
  • the polarizer is the upper polarizer 103 throughout the display device. Therefore, the polarizer is hereinafter referred to as the polarizer. It is called an upper polarizer 103.
  • the upper polarizer 103 is attached to the top of the touch electrode pattern through the first adhesive layer 1031, as shown in FIG. 4, and the scattering particles 106 are disposed in the first adhesive layer 1031 so as to pass the touch electrode pattern.
  • the reflected light of 102 is scattered.
  • the first adhesive layer 1031 can be a pressure sensitive adhesive (PSA) adhesive layer.
  • PSA pressure sensitive adhesive
  • the difference between this embodiment and the first embodiment and the second embodiment is only that the first adhesive layer between the touch electrode pattern and the upper polarizer and the first between the cover substrate and the upper polarizer are simultaneously in the embodiment.
  • the second adhesive layer is provided with scattering particles, and the scattering particles are simultaneously disposed on the two adhesive layers, so that the visibility of the pattern of the touch electrode pattern can be further reduced to achieve the purpose of eliminating the shadow and improving the quality of the display image.
  • the manufacturing method of the touch display device of this embodiment is a combination of the manufacturing methods in the first embodiment and the second embodiment, and details are not described herein again.
  • the touch display device and the method for fabricating the same according to the present invention are particularly suitable for an On-cell type touch display device, which is intended to achieve invisibility, that is, shadow elimination, of a pattern of a touch electrode pattern.
  • a method of arranging scattering particles in an adhesive layer between the touch electrode pattern and the cover substrate to make a touch The reflected light of the polar pattern is scattered when passing through the scattering particles in the adhesive layer, thereby reducing the directivity of the reflected light of the pattern region and the blank region of the touch electrode pattern, thereby reducing the visibility of the human eye of the pattern of the transparent electrode layer. Avoid the impact on display quality.
  • the above-mentioned scattering particles can be formed by a doping method, which is simpler in process and lower in cost than the coating process in the prior art.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Human Computer Interaction (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Polarising Elements (AREA)

Abstract

一种触摸显示装置及其制作方法，该装置包括层叠设置的显示面板（101）和盖板基板，显示面板（101）面向盖板基板的面设置有触摸电极图案（102），触摸电极图案（102）的上方与盖板基板之间的粘结胶层（1031）中设置有散射粒子（106），以使通过触摸电极图案（102）的反射光线发生散射。本技术方案使触摸电极图案（102）的反射光线经过粘结胶层（1031）中的散射粒子（106）时发生散射，从而减轻透明电极层的图案的人眼可见性，避免对显示品质的影响；同时，上述散射粒子可通过掺杂的方法即可形成，与用现有技术中的镀膜工艺相比，工艺简单并且成本较低。

Description

触摸显示装置及其制作方法 技术领域
本发明的实施例涉及一种触摸显示装置及其制作方法。
背景技术
现在触摸技术在智能手机、显示器等显示类电子产品上应用的越来越广泛。目前，为实现多点触控功能，在中小尺寸上广泛使用的是电容式触摸屏技术。根据不同结构，电容式触摸屏可以分为外挂式、In-cell和On-cell三类。On cell技术具有触感好、易轻薄化、成本低等特点，并被业界重点关注。通常的On cell触摸显示装置的结构如图1所示，其包括显示面板101和盖板基板105。
图1中，液晶显示面板101的上下方分别设有上偏光片103和下偏光片100。液晶显示面板101自下而上依次包括阵列基板1011、液晶层1012和彩膜基板1013。在阵列基板1011与上偏光片103之间有触摸电极图案102，用作触摸屏的传感器部分，并在上偏光片103的上方设有盖板基板105。盖板基板105与上偏光片103可采用OCR胶层104′贴合。
On cell技术是直接在显示面板的上基板上使用透明电极形成触摸屏感应图案，然后使用贴合盖板基板105。在触摸电极图案102上有触摸电极，如图2所示，该图案使得形成有触摸电极的图案区域和空白处具有折射率差异，导致在反射光下，图2中的箭头为反射光，触摸电极的图案可见，极大地影响了显示品质。所以需要对触摸电极图案102的图案进行消隐处理，以降低反射可见性。
目前会采用多层低反膜的方式，来降低触摸屏的表面反射。现有的在触摸电极图案上或者是玻璃盖板上再镀一层或者多层的膜，通过不同膜层之间的折射率搭配，可以形成低反膜的结构，从而有效降低表面反射，但这种低反膜的结构需要通过蒸镀或相关镀膜工艺才能形成，这样会增加工艺步骤并且增加成本。
发明内容
本发明要解决的技术问题之一是如何克服现有的触摸显示装置中触摸电极图案化后，图案区域和空白处具有折射率差异，导致在反射光下，触摸电极图案可见而对显示品质的影响，同时不增加额外的工艺和成本。
本发明提供的一种触摸显示装置，包括层叠设置的显示面板和盖板基板，所述显示面板面向所述盖板基板的面设置有触摸电极图案，所述触摸电极图案与所述盖板基板之间的粘结胶层中设置有散射粒子，以使通过所述触摸电极图案的反射光线发生散射。
进一步地，所述触摸电极图案的位于所述盖板基板的一侧贴附有偏光片，所述偏光片通过第一粘结胶层贴附于所述触摸电极图案，所述第一粘结胶层中设置有所述散射粒子。
进一步地，所述触摸电极图案的位于所述盖板基板的一侧贴附有偏光片，且所述偏光片通过覆盖在所述盖板基板的第二粘结胶层贴附于所述盖板基板上，所述第二粘结胶层中设置有所述散射粒子。
进一步地，所述散射粒子为采用无机材料或有机材料制作的微粒子。
进一步地，所述无机材料为二氧化硅和二氧化钛中的至少之一。
进一步地，所述有机材料为聚苯乙烯、丙烯酸酯类和聚甲基丙烯酸甲酯中的一种或几种。
进一步地，所述偏光片包括层叠设置的下保护层、偏光层、上保护层和表面处理层。
进一步地，所述散射粒子的直径为：3～50um。
本发明还提供一种触摸显示装置的制作方法，其包括：
提供显示面板和盖板基板；
在所述显示面板面向所述盖板基板的面形成触摸电极图案；
在所述触摸电极图案与所述盖板基板之间的粘结胶层中设置散射粒子，以使通过所述触摸电极图案的反射光线发生散射；
将所述盖板基板叠置于所述显示面板上。
进一步地，所述在所述触摸电极图案与所述盖板基板之间的粘结胶层中设置散射粒子的步骤包括：在所述触摸电极图案的位于所述盖板基板的一侧贴附偏光片，所述偏光片通过第一粘结胶层贴附于所述触摸电极图案的上方， 并在所述第一粘结胶层中掺杂所述散射粒子。
进一步地，所述在所述触摸电极图案的上方与所述盖板基板之间的粘结胶层中设置散射粒子的步骤包括：在所述触摸电极图案的位于所述盖板基板的一侧贴附偏光片，且所述偏光片通过覆盖在所述盖板基板的第二粘结胶层贴附于所述盖板基板上，并在所述第二粘结胶层中掺杂所述散射粒子。
上述技术方案所提供的一种触摸显示装置和该触摸显示装置的制作方法，可以达到触摸电极图案不可见也就是消影的目的。采用在触摸电极图案与盖板基板之间的粘结胶层中设置散射粒子的方法，使触摸电极图案的反射光线经过粘结胶层中的散射粒子时发生散射，减小有触摸电极图案的图案区域和空白区域的反射光线的方向性，从而减轻透明电极层的图案的人眼可见性，避免对显示品质的影响；同时，上述散射粒子可通过掺杂的方法即可形成，与用现有技术中的镀膜工艺相比，工艺简单并且成本较低。
附图说明
为了更清楚地说明本发明实施例的技术方案，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发明的一些实施例，而非对本发明的限制。
图1是现有的On cell触摸显示装置的结构示意图；
图2是现有On cell触摸显示装置中触摸电极图案的光路视图；
图3是本发明中上偏光片的结构示意图；
图4是本发明实施例一触摸显示装置中触摸电极图案的光路视图；
图5是本发明实施例二触摸显示装置中触摸电极图案的光路视图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例的附图，对本发明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发明的一部分实施例，而不是全部的实施例。基于所描述的本发明的实施例，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，都属于本发明保护的范围。
在本发明的描述中，需要说明的是，术语“上”、“下”、“顶”、“底” 等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。
本发明的一种触摸显示装置，其包括叠层设置的显示面板和盖板基板，显示面板面向盖板基板的面设置有触摸电极图案。为使通过触摸电极图案的反射光线发生散射，触摸电极图案的上方与盖板基板之间的粘结胶层中设置有散射粒子，以下列举两个实施例方式以具体说明。在下述实施例中，显示面板为液晶显示面板。
实施例一
本实施例的触摸显示装置，参照图4所示，是在触摸电极图案102的上方贴附有偏光片，该偏光片在整个显示装置中为上偏光片103，因此，以下称将该偏光片称作上偏光片103。该上偏光片103通过第一粘结胶层1031贴附于触摸电极图案的上方，如图4所示，并在第一粘结胶层1031中设置有散射粒子106，以使通过触摸电极图案102的反射光线发生散射。例如，该第一粘结胶层1031可为压敏胶(pressure sensitive adhesive，简称PSA)胶层。
本实施例中，通过在触摸电极图案102和上偏光片103之间的第一粘结胶层1031中设置散射粒子106，可起到分散光线的作用，图4中的箭头为光路方向，也就是使触摸电极图案102的表面反射光线经过第一粘结胶层1031中的散射粒子106时发生散射，减小有触摸电极图案102的图案区域和空白区域的反射光的方向性，从而达到在视觉上不易区分两个区域的效果，进而也就减轻了触摸电极图案102的图案的可见性。上述的散射粒子106可通过掺杂的方法即可形成，与用现有技术中的镀膜工艺相比，工艺简单并且成本较低。
触摸电极图案102的材料可为铟锡金属氧化物(Indium Tin Oxide，简称ITO)材料或其它透明导电材料。
具体地，如图3所示，上偏光片103一般均为多层结构，其包括偏光层1033和分别位于该偏光层1033上、下方的上保护层1034和下保护层1032，其上保护层1034的上方具有表面处理层1035，该表面处理层1035与其上方 的盖板基板采用胶粘连接，其下保护层1032通过第一粘结胶层1031与触摸电极图案102粘贴，因此，通过在上偏光片103下方的(一般为PSA)第一粘结胶层1031中设置散射粒子来可以减轻触摸电极图案102的图案的可见性，以达到消影的目的。
上述的第一粘结胶层可以为包含在偏光片中的结构，也就是说，偏光片作为一种独立元件包括第一粘结胶层，而本实施例与现有偏光片的区别在于，需要在该第一粘结胶层中设置散射粒子。当然，上述的第一粘结胶层可以单独设置而不包括在偏光片中，本实施例不做限定。
铺设在触摸电极图案102和上偏光片103之间的第一粘结层1031的散射粒子可为采用无机材料或有机材料制作的微粒子。该微粒子颗粒的直径例如为：3～50um。
无机材料可为二氧化硅和/或二氧化钛；有机材料可为聚苯乙烯、丙烯酸酯类和聚甲基丙烯酸甲酯中的一种或几种。
本实施例的触摸显示装置的制作方法，包括：
提供显示面板101和盖板基板；并在显示面板101面向盖板基板的面形成触摸电极图案102，具体可采用沉积的方式形成触摸电极图案；在触摸电极图案上方贴附上偏光片，且该上偏光片103通过第一粘结层1031贴附于触摸电极图案的上方，并在该第一粘结层1031中掺杂散射粒子106，使得散射粒子106与第一粘接层1031的胶均匀混合，以使通过触摸电极图案102的反射光线发生散射；将盖板基板叠置于显示面板上。
实施例二
本实施例与实施例一的区别仅在于，如图5所示，在触摸电极图案102的上方贴附偏光片103，偏光片103通过覆盖在盖板基板的第二粘结胶层104来贴附在盖板基板上。与实施例一样，该偏光片在整个显示装置中为上偏光片103。第二粘结胶层104一般为光学透明胶(Optical Clear Resin，简称OCR)，其中设置有散射粒子。需要指出的是，当盖板基板与上偏光片103之间的第二粘结胶层104设置散射粒子106时，盖板基板与上偏光片103应当采用面接触的胶粘结构，因为如果是框形式的胶粘结构产生散射的区域较小只能在局限的胶框处，不能形成整个显示屏的散射，不利于减轻触摸电极图案102的图案的可见性。
本实施例在盖板基板与上偏光片103之间的第二粘结胶层104中设置散射粒子106，可起到分散光线的作用，图5中的箭头为光路方向，也就是使触摸电极图案102的表面反射光线经过该第二粘结胶层104中的散射粒子106时发生散射，减小有触摸电极图案102的图案区域和空白区域的反射光的方向性，从而达到在视觉上不易区分两个区域的效果，进而也就减轻了触摸电极图案102的图案的可见性，以达到消影的目的。上述散射粒子可通过掺杂的方法形成在粘结胶层中，与用现有技术中的镀膜工艺相比，工艺简单并且成本较低。
与实施例一样，设置在盖板基板与上偏光片103之间的第二粘结胶层104的散射粒子106可为采用无机材料或有机材料制成的微粒子。该微粒子颗粒的直径例如为：3～50um。
无机材料可为二氧化硅和/或二氧化钛。有机材料可为聚苯乙烯、丙烯酸酯类和聚甲基丙烯酸甲酯中的一种或几种。
本实施例的触摸显示装置的制作方法，包括：提供显示面板101和盖板基板；并在显示面板101面向盖板基板的面形成触摸电极图案102，具体可采用沉积的方式形成触摸电极图案102；在触摸电极图案102的上方贴附上偏光片103，且上偏光片103通过覆盖在盖板基板的第二粘结胶层104贴附于盖板基板上，并在第二粘结胶层104中掺杂散射粒子106，使得散射粒子106与第二粘结胶层104中的胶均匀混合，以使通过触摸电极图案102的反射光线发生散射；将盖板基板叠置于显示面板上。
实施例三
本实施例与实施例一和实施例二的区别仅在于，本实施例同时在触摸电极图案和上偏光片之间的第一粘结胶层、以及盖板基板与上偏光片之间的第二粘结胶层设置有散射粒子，在两层胶层同时设置散射粒子，可进一步地减轻触摸电极图案的图案的可见性，以达到消影的目的，提高显示画面的品质。
本实施例的触摸显示装置的制作方法是实施例一和实施例二中的制作方法的结合，在此不再赘述。
本发明的触摸显示装置及其制作方法，特别适用于On-cell型触摸显示装置，其为达到触摸电极图案的图案不可见也就是消影的目的。可以在触摸电极图案的上方与盖板基板之间的粘结胶层中设置散射粒子的方法，使触摸电 极图案的反射光线经过粘结胶层中的散射粒子时发生散射，减小有触摸电极图案的图案区域和空白区域的反射光线的方向性，从而减轻透明电极层的图案的人眼可见性，避免对显示品质的影响。同时，上述散射粒子可通过掺杂的方法即可形成，与用现有技术中的镀膜工艺相比，工艺简单并且成本较低。
以上所述仅是本发明的示范性实施方式，而非用于限制本发明的保护范围，本发明的保护范围由所附的权利要求确定。
本申请要求于2014年3月10日递交的中国专利申请第201410086450.7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 (14)

  1. 一种触摸显示装置，包括层叠设置的显示面板和盖板基板，所述显示面板面向所述盖板基板的面设置有触摸电极图案，其中，所述触摸电极图案与所述盖板基板之间的粘结胶层中设置有散射粒子，以使通过所述触摸电极图案的反射光线发生散射。
  2. 如权利要求1所述的触摸显示装置，其中，
    所述触摸电极图案的位于所述盖板基板的一侧贴附有偏光片，所述偏光片通过第一粘结胶层贴附于所述触摸电极图案，所述第一粘结胶层中设置有所述散射粒子。
  3. 如权利要求1或2所述的触摸显示装置，其中，
    所述触摸电极图案的位于所述盖板基板的一侧贴附有偏光片，且所述偏光片通过覆盖在所述盖板基板的第二粘结胶层贴附于所述盖板基板上，所述第二粘结胶层中设置有所述散射粒子。
  4. 如权利要求1-3任一项所述的触摸显示装置，其中，所述散射粒子为采用无机材料或有机材料制作的微粒子。
  5. 如权利要求4所述的触摸显示装置，其中，所述无机材料为二氧化硅和二氧化钛中的至少之一。
  6. 如权利要求4所述的触摸显示装置，其中，所述有机材料为聚苯乙烯、丙烯酸酯类和聚甲基丙烯酸甲酯中的一种或几种。
  7. 如权利要求2或3任一项所述的触摸显示装置，其中，所述偏光片包括层叠设置的下保护层、偏光层、上保护层和表面处理层。
  8. 如权利要求1-7任一项所述的触摸显示装置，其中，所述散射粒子的直径为：3～50um。
  9. 一种触摸显示装置的制作方法，包括：
    提供显示面板和盖板基板；
    在所述显示面板面向所述盖板基板的面形成触摸电极图案；
    在所述触摸电极图案与所述盖板基板之间的粘结胶层中设置散射粒子，以使通过所述触摸电极图案的反射光线发生散射；
    将所述盖板基板叠置于所述显示面板上。
  10. 如权利要求9所述的制作方法，其中，所述在所述触摸电极图案与所述盖板基板之间的粘结胶层中设置散射粒子的步骤包括：在所述触摸电极图案的位于所述盖板基板的一侧贴附偏光片，所述偏光片通过第一粘结胶层贴附于所述触摸电极图案的上方，并在所述第一粘结胶层中掺杂所述散射粒子。
  11. 如权利要求9或10所述的制作方法，其中，所述在所述触摸电极图案与所述盖板基板之间的粘结胶层中设置散射粒子的步骤包括：在所述触摸电极图案的位于所述盖板基板的一侧贴附偏光片，且所述偏光片通过覆盖在所述盖板基板的第二粘结胶层贴附于所述盖板基板上，并在所述第二粘结胶层中掺杂所述散射粒子。
  12. 如权利要求9-11任一项所述的制作方法，其中，所述散射粒子为采用无机材料或有机材料制作的微粒子。
  13. 如权利要求12所述的制作方法，其中，所述无机材料为二氧化硅和二氧化钛中的至少之一。
  14. 如权利要求12所述的制作方法，其中，所述有机材料为聚苯乙烯、丙烯酸酯类和聚甲基丙烯酸甲酯中的一种或几种。
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