WO2016192469A1 - 触控面板的制备方法、触控面板和显示装置 - Google Patents

触控面板的制备方法、触控面板和显示装置 Download PDF

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Publication number
WO2016192469A1
WO2016192469A1 PCT/CN2016/079261 CN2016079261W WO2016192469A1 WO 2016192469 A1 WO2016192469 A1 WO 2016192469A1 CN 2016079261 W CN2016079261 W CN 2016079261W WO 2016192469 A1 WO2016192469 A1 WO 2016192469A1
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Prior art keywords
electrode chain
substrate
electrode
chain
touch panel
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Ceased
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PCT/CN2016/079261
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English (en)
French (fr)
Inventor
陈军
张鹏宇
曾亭
王庆浦
丁贤林
陈军涛
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BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
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Priority to US15/510,388 priority Critical patent/US10592015B2/en
Publication of WO2016192469A1 publication Critical patent/WO2016192469A1/zh
Anticipated expiration legal-status Critical
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    • 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
    • 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
    • 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
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; 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
    • G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a method for manufacturing a touch panel, a touch panel, and a display device.
  • OGS One Glass Solution
  • OGS capacitive touch panel is mainly prepared by two techniques.
  • the first one is a 6-step masking technology, and the other is a 5-step metal bridge bridging technology.
  • the 6-step masking technique includes the following steps:
  • a black border ie, a black matrix border
  • the pattern of the touch sensing electrode is prepared, wherein the touch sensing electrode is electrically connected along the electrode chain in the Y direction, and the electrode chain in the X direction is not conductive;
  • step 5 prepare an insulating layer to protect the bare metal trace from oxidation.
  • the 5-step mask metal cladding technique includes the following steps:
  • the pattern of the touch sensing electrode is prepared, wherein the touch sensing electrode is electrically connected along the electrode chain in the Y direction, and the electrode chain in the X direction is not conductive;
  • step 3 prepare a metal bridge along the X direction.
  • the metal bridge turns on the electrode chain along the X direction, and at the same time prepares a metal trace on the black border, and the electrode chain in the X/Y direction is driven by the edge metal trace connection. chip;
  • step 4 prepare an insulating layer to protect the bare metal trace from oxidation.
  • the 6-step mask bridging technology is invisible because of the bridge point formed by it (that is, the bridge point formed by the intersection of the driving electrode chain and the sensing electrode chain space), so the effect is good, and it is mainly applied to high-end products.
  • the cost of the 6-step mask bridging technology is relatively high, and its widespread application in OGS technology is greatly affected due to the high cost.
  • the 5-step mask metal bridge technology reduces the number of mask processes in the manufacture of the touch sensing electrode, that is, reduces the process flow and reduces the cost, but the bridge point formed by the intersection of the driving electrode chain and the sensing electrode chain space
  • the position adopts the metal bridge point, which makes the bridge point have chromatic aberration, affecting the visual effect, and is generally applied to the middle and low-end products.
  • the present invention is directed to the above technical problem existing in the prior art, and provides a method for preparing a touch panel, a touch panel, and a display device.
  • the preparation method of the touch panel completely completes the process of preparing the first electrode chain and the second electrode chain by using two patterning process steps, thereby greatly simplifying the process flow, thereby greatly reducing the manufacturing cost of the touch panel.
  • the present invention provides a method for fabricating a touch panel, comprising: step S10, forming a pattern including a first electrode chain and an insulating layer on a substrate by using a patterning process; the insulating layer is formed on the first electrode chain, And the insulating layer covers the first electrode chain; in step S11, the first patterning process is used to complete the step S10.
  • a pattern including a second electrode chain is formed on the substrate, wherein the second electrode chain and the first electrode chain space intersect and are insulated.
  • the first electrode chain and the second electrode chain are both made of a transparent conductive material, and the insulating layer is made of a transparent photosensitive material.
  • the first electrode chain is a driving electrode chain
  • the second electrode chain is a sensing electrode chain
  • the first electrode chain is a sensing electrode chain
  • the second electrode chain is a driving electrode chain
  • the step S10 specifically includes: step S101: depositing a first electrode chain film on the substrate, and then coating an insulating layer film on the first electrode chain film; step S102: forming by exposure and development processes A pattern including the insulating layer; and a step S103: forming a pattern including the first electrode chain by an etching process.
  • the step S11 specifically includes: step S111: depositing a second electrode chain film on the substrate on which the step S10 is completed; step S112: coating a photoresist on the second electrode chain film, and passing The exposure, development, etching, and photoresist lift-off processes form a pattern including the second electrode chain.
  • the preparation method further comprises: forming a black matrix on a periphery of a region corresponding to the first electrode chain and the second electrode chain on the substrate.
  • the preparation method further comprises: forming a first metal trace and a region on the substrate corresponding to forming the black matrix by using a patterning process a second metal trace; the first metal trace connects the first electrode chain, and the second metal trace connects the second electrode chain.
  • the present invention also provides a touch panel prepared by the above preparation method, comprising a substrate and a first electrode chain, an insulating layer and a second electrode chain sequentially disposed on the substrate, the insulating layer covering the first electrode a chain, the second electrode chain and the first electrode chain space intersect and are insulated.
  • the pattern of the insulating layer is the same as the pattern of the first electrode chain.
  • the touch panel further includes a black matrix, a first metal trace, and a second a metal trace corresponding to a periphery of a region where the first electrode chain and the second electrode chain of the substrate are located; the first metal trace and the second metal trace are correspondingly disposed In a region where the black matrix is located; the first metal trace connects the first electrode chain, and the second metal trace connects the second electrode chain.
  • the first electrode chain and the insulating layer further extend to a region where the black matrix is located and cover the first metal trace
  • the second electrode chain further extends to a region where the black matrix is located and covers The second metal trace.
  • the substrate is a protective cover
  • the protective cover is used for covering the display screen, and one side of the protective cover formed with the first electrode chain and the second electrode chain is oriented The display screen;
  • the substrate is a color filter substrate
  • the color filter substrate is used for a pair of array substrates
  • the first electrode chain and the second electrode chain are disposed on the array substrate opposite to the color filter substrate.
  • a side of the first electrode chain and the second electrode chain facing away from the color filter substrate is further provided with a polarizer;
  • the substrate is an array substrate, and the array substrate is provided with a color film layer, and the first electrode chain and the second electrode chain are disposed above the color film layer.
  • the invention also provides a display device comprising the above touch panel.
  • the invention has the beneficial effects that the preparation method of the touch panel provided by the invention can complete the preparation of the first electrode chain and the second electrode chain (ie, the touch electrode) by using two patterning process steps, compared with the present In the prior art, the preparation process of the touch electrode can be completed by using three patterning process steps. In the embodiment, the preparation method of the touch panel greatly simplifies the process flow, thereby greatly reducing the manufacturing cost of the touch panel.
  • the touch panel provided by the invention is prepared by adopting the above preparation method, has a simple structure and low preparation cost.
  • the display device provided by the present invention simplifies the preparation process of the display device by using the above touch panel, and at the same time reduces the manufacturing cost of the display device.
  • 1 is a flow of a method of fabricating a touch panel in a first embodiment of the present invention. Cheng Tu.
  • step S8 is a top plan view showing the formation of a black matrix on the substrate in step S8.
  • FIG. 3 is a top plan view showing the first metal trace and the second metal trace formed on the substrate in step S9.
  • step S10 is a schematic top plan view showing the formation of the first electrode chain on the substrate in step S10.
  • FIG. 5 is a schematic top plan view showing the formation of a second electrode chain on the substrate in step S11.
  • FIG. 6 is a schematic top plan view showing the structure of a touch panel in a second embodiment of the present invention.
  • FIG. 7 is a cross-sectional view of the touch panel of FIG. 6 taken along line AA.
  • FIG. 8 is a cross-sectional view of the touch panel of FIG. 6 taken along line BB.
  • FIG. 9 is a cross-sectional view of the touch panel of FIG. 6 taken along line CC.
  • the embodiment provides a method for preparing a touch panel.
  • the preparation method includes: Step S10, forming a pattern including a first electrode chain 2 and an insulating layer on the substrate 1 by using a patterning process.
  • the insulating layer is formed on the first electrode chain 2, and the insulating layer covers the first electrode chain 2; in step S11, a pattern including the second electrode chain 4 is formed on the substrate 1 on which the step S10 is completed by using a patterning process, wherein
  • the second electrode chain 4 and the first electrode chain 2 are spatially intersected and insulated from each other.
  • the preparation of the first electrode chain 2 and the second electrode chain 4 (ie, the touch electrode) can be completed by using two patterning process steps, compared to the prior art.
  • the three patterning process steps can complete the preparation of the touch electrode.
  • the method for preparing the touch panel in the embodiment greatly simplifies the process flow, thereby greatly reducing the manufacturing cost of the touch panel.
  • the first electrode chain 2 and the second electrode chain 4 are both transparently conductive.
  • the insulating layer is made of transparent photosensitive material.
  • the first electrode chain 2 and the second electrode chain 4 may each be made of an indium tin oxide material, and the insulating layer may be made of an epoxy resin material.
  • the spatial intersection position (ie, the bridge position) of the first electrode chain 2 and the second electrode chain 4 can be transmitted, compared to
  • the spatial intersection position of the driving electrode chain and the sensing electrode chain is a metal material, and the chromatic aberration of the spatial intersection position in the embodiment is greatly reduced, that is, the bridge point is substantially invisible, so that the space is displayed during display. No shadows appear at the intersections, which improves the display.
  • the first electrode chain 2 is a driving electrode chain
  • the second electrode chain 4 is a sensing electrode chain
  • the first electrode chain 2 may also be a sensing electrode chain.
  • the second electrode chain 4 is a driving electrode chain. That is, the order of preparation of the drive electrode chain and the induction electrode chain is not limited in the present invention.
  • step S10 specifically includes the following sub-steps S101 to S103.
  • Sub-step S101 depositing a first electrode chain film on the substrate, followed by coating an insulating layer film on the first electrode chain film.
  • Sub-step S102 forming a pattern including an insulating layer by an exposure and development process.
  • the insulating layer is made of a transparent photosensitive material, the pattern of the insulating layer is formed after exposure and development.
  • Sub-step S103 A pattern including the first electrode chain 2 is formed by an etching process.
  • the first electrode chain film covered by the pattern of the insulating layer is not etched away, and the first electrode chain film not covered by the pattern of the insulating layer is etched away, and thus, the finally formed first electrode chain 2
  • the pattern is identical to the pattern of the insulating layer, and the pattern of the insulating layer covers the pattern of the first electrode chain 2.
  • the insulating layer can function to insulate the first electrode chain 2 from the second electrode chain 4 formed subsequently thereon.
  • the first electrode chain 2 includes a plurality of first electrodes 21 connected together, and a plurality of first bridge connection segments 22 electrically connecting adjacent first electrodes 21.
  • step S11 specifically includes: sub-step S111, depositing a second electrode chain film on the substrate of step S10; sub-step S112, applying a photoresist on the second electrode chain film, through exposure, The developing, etching, and photoresist stripping processes form a pattern including the second electrode chain 4.
  • the pattern of the second electrode chain 4 can be formed by only one patterning process, wherein the second electrode chain 4 includes a plurality of second electrodes 41 connected together, and the adjacent second electrodes 41 are electrically A plurality of second bridge points connected to each other are connected.
  • the first bridge point connecting section 22 and the second bridge point connecting section 42 are spatially intersected and insulated from each other by an insulating layer.
  • the second electrode chain 4 can be formed by only one patterning process, which simplifies the process flow.
  • the preparation method may further include: step S8, forming a black matrix 5 on the periphery of the region corresponding to the region where the first electrode chain 2 and the second electrode chain 4 are to be formed on the substrate 1. .
  • a black photosensitive paste is first coated on the substrate 1, and then subjected to an exposure and development process to form a pattern of the black matrix 5.
  • the non-touch area is used to correspond to the non-display area of the display panel, so This area creates a black matrix 5 for occlusion.
  • the preparation method may further include: step S9, forming a first metal trace 6 and a second metal on a substrate corresponding to a region corresponding to the region where the black matrix 5 is formed by using a patterning process.
  • Route 7 The first metal trace 6 is connected to the first electrode chain 2, and the second metal trace 7 is connected to the second electrode chain 4.
  • the first metal trace 6 is used to connect the first electrode chain 2 to its drive circuit
  • the second metal trace 7 is used to connect the second electrode chain 4 to its drive circuit.
  • the first metal trace 6 and the second metal trace 7 are formed in an area where the black matrix 5 is located, so that the arrangement of the first metal trace 6 and the second metal trace 7 does not affect the normal touch and display of the touch panel. The normal display of the panel.
  • the preparation method can complete the preparation of the first electrode chain and the second electrode chain (ie, the touch electrode) by using two patterning process steps, and the touch electrode can be completed by three patterning process steps in the prior art.
  • the preparation method of the touch panel in the embodiment greatly simplifies the process flow, thereby greatly reducing the manufacturing cost of the touch panel.
  • the touch panel includes a substrate 1 and a first electrode chain 2 sequentially disposed on the substrate 1 .
  • the insulating layer 3 and the second electrode chain 4 cover the first electrode chain 2, and the second electrode chain 4 and the first electrode chain 2 are spatially intersected and insulated from each other.
  • the touch panel has a simple structure and a low preparation cost.
  • the first electrode chain 2 and the second electrode chain 4 are both made of a transparent conductive material, the spatial intersection of the first electrode chain 2 and the second electrode chain 4 is made. (ie, the bridge position) can transmit light, which greatly reduces the color difference between the space intersection position and other positions, that is, the bridge point is substantially invisible, so that no shadow appears in the space intersection position during display, which improves the display effect.
  • the pattern of the insulating layer 3 is the same as that of the first electrode chain 2.
  • the arrangement is such that the insulating layer 3 functions to insulate the first electrode chain 2 and the second electrode chain 4 from each other, and the preparation process of the first electrode chain 2 can be simplified.
  • the touch panel further includes a black matrix 5, a first metal trace 6 and a second metal trace 7, and the black matrix 5 is disposed on a region of the substrate 1 opposite to the first electrode chain 2 and the second electrode chain 4.
  • the periphery of the corresponding area Since the periphery of the area corresponding to the area where the first electrode chain 2 and the second electrode chain 4 are located on the substrate 1 is a non-touch area, the non-touch area is used to correspond to the non-display area of the display panel, so the black matrix 5 The setting can occlude the non-display area, so that the non-display area of the display panel does not affect its normal display.
  • the first metal trace 6 and the second metal trace 7 are disposed in a region where the black matrix 5 is located, the first metal trace 6 is connected to the first electrode chain 2, and the second metal trace 7 is connected to the first Two electrode chain 4.
  • the first metal trace 6 is used to connect the first electrode chain 2 to its drive circuit, and the second metal trace 7 is used to connect the second electrode chain 4 to its drive circuit.
  • the first metal trace 6 and the second metal trace 7 are formed in an area where the black matrix 5 is located such that the arrangement of the first metal trace 6 and the second metal trace 7 does not affect the normal touch of the touch panel and the display panel. The normal display.
  • the first electrode chain 2 and the insulating layer 3 also extend to the area where the black matrix 5 is located and cover the first metal trace 6, and the second electrode chain 4 also extends to the black matrix. 5 The area is located and covers the second metal trace 7.
  • the first electrode chain 2 and the insulating layer 3 can form a good protection for the first metal trace 6 and protect the first metal trace 6 from oxidation.
  • the second electrode chain 4 is capable of forming a good protection for the second metal trace 7, protecting the second metal trace 7 from oxidation.
  • the substrate 1 is a protective cover plate for covering the display panel, and one side of the protective cover plate on which the first electrode chain 2 and the second electrode chain 4 are formed faces the display panel. That is, the touch panel and the display panel are combined in the OGS mode.
  • the substrate 1 may also be a color filter substrate, and the color filter substrate is used for pairing with the array substrate, and the first electrode chain 2 and the second electrode chain 4 may be disposed on a side of the color filter substrate away from the array substrate. And a polarizer is further disposed on a side of the first electrode chain 2 and the second electrode chain 4 remote from the color filter substrate. That is, the combination of the touch panel and the display panel may also be an On-cell method.
  • the substrate 1 may also be an array substrate.
  • the array substrate is provided with a color film layer, and the first electrode chain 2 and the second electrode chain 4 may be disposed above the color film layer. That is, the touch panel can also be combined with the display panel of the COA mode in an On-cell manner.
  • the touch panel in this embodiment is prepared by adopting the preparation method in the first embodiment, has a simple structure and low preparation cost, and at the same time, since the first electrode chain and the second electrode chain are both made of a transparent conductive material, The spatial intersection position (ie, the bridge position) of the first electrode chain and the second electrode chain can transmit light, which greatly reduces the color difference between the spatial intersection position and other positions, that is, the bridge point is substantially invisible, so that when the display is performed There is no shadow at the intersection of the space, which improves the display.
  • the embodiment provides a display device including the touch panel in the second embodiment.
  • the manufacturing process of the display device is simplified, and the manufacturing cost of the display device is also reduced.
  • the display device in this embodiment may be: a liquid crystal panel, a liquid crystal television, a display, an OLED panel, an OLED television, an electronic paper, a mobile phone, a tablet computer, a notebook computer, a digital photo frame, a navigation device, etc., with a touch display. Any product or part that functions.

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

Abstract

一种触控面板的制备方法、一种触控面板和一种显示装置。该触控面板的制备方法包括：步骤S10，采用一次构图工艺在基板（1）上形成包括第一电极链（2）和绝缘层（3）的图形，绝缘层（3）形成于第一电极链（2）上，且绝缘层（3）覆盖第一电极链（2）；步骤S11，采用一次构图工艺在完成步骤S10的基板（1）上形成包括第二电极链（4）的图形，第二电极链（4）和第一电极链（2）空间交叉并相互绝缘。该触控面板的制备方法通过采用两次构图工艺步骤完成第一电极链（2）和第二电极链（4）的制备，大大简化了工艺流程，从而大大降低了触控面板的制备成本。

Description

触控面板的制备方法、触控面板和显示装置 技术领域
本发明涉及显示技术领域，具体地，涉及触控面板的制备方法、触控面板和显示装置。
背景技术
随着智能手机、平板电脑向轻薄化发展，触控显示面板OGS(One Glass Solution)技术应运而生。所谓OGS技术，就是将触控感应电极(Sensor)直接制作到保护玻璃上从而减少1-2层玻璃的技术，其能达到减小触控显示面板的整体厚度、减轻重量的作用，因此最近几年这种技术得到很大的发展。
目前，OGS电容触控面板的制备主要采用两种技术，第一种是6步骤掩膜(6mask)架桥技术，另一种是5步骤掩膜金属(5mask metal)架桥技术。6步骤掩膜(6mask)架桥技术包括以下步骤：
1.通过曝光和显影制备黑色边框(即，黑矩阵边框)；
2.制备出触控感应电极的图形，其中，触控感应电极沿Y方向的电极链导通，沿X方向的电极链不导通；
3.制备透明绝缘层，该绝缘层覆盖沿X方向的电极链的桥接位置；
4.在绝缘层上再沉积一层触控感应电极材料，使得沿X方向的电极链导通；
5.在黑色边框上制备金属走线，X/Y方向的电极链通过边缘金属走线连接驱动芯片；
6.完成步骤5后再制备一层绝缘层，保护裸露在外的金属走线不被氧化。
5步骤掩膜金属(5mask metal)架桥技术包括以下步骤：
1.通过曝光和显影制备黑色边框；
2.制备出触控感应电极的图形，其中，触控感应电极沿Y方向的电极链导通，沿X方向的电极链不导通；
3.制备透明绝缘层，该绝缘层覆盖沿X方向的电极链的桥接位置；
4.完成步骤3后制备沿X方向的金属桥，金属桥使沿X方向的电极链导通，同时在黑色边框上制备金属走线，X/Y方向的电极链通过边缘金属走线连接驱动芯片；
5.完成步骤4后再制备一层绝缘层，保护裸露在外的金属走线不被氧化。
6步骤掩膜架桥技术由于其所形成的桥点(即，驱动电极链和感应电极链空间交叉形成的桥点)不可见，因此效果较好，主要应用于高端产品上。但是，6步骤掩膜架桥技术的成本较高，由于受到高成本的限制，使其在OGS技术中的普遍应用受到较大的影响。5步骤掩膜金属架桥技术虽然减少了触控感应电极制造中的掩膜工艺次数，即，减少了工艺流程并降低了成本，但由于其中驱动电极链和感应电极链空间交叉形成的桥点位置采用金属桥点，使得桥点处有色差，影响视觉效果，普遍应用于中低档产品。
发明内容
本发明针对现有技术中存在的上述技术问题，提供一种触控面板的制备方法、一种触控面板和一种显示装置。该触控面板的制备方法通过采用两次构图工艺步骤完成第一电极链和第二电极链的制备，大大简化了工艺流程，从而大大降低了触控面板的制备成本。
本发明提供一种触控面板的制备方法，包括：步骤S10，采用一次构图工艺在基板上形成包括第一电极链和绝缘层的图形；所述绝缘层形成于所述第一电极链上，且所述绝缘层覆盖所述第一电极链；步骤S11，采用一次构图工艺在完成所述步骤S10的 基板上形成包括第二电极链的图形，其中，所述第二电极链和所述第一电极链空间交叉并绝缘。
优选地，所述第一电极链和所述第二电极链均采用透明导电材料制成，所述绝缘层采用透明感光材料制成。
优选地，所述第一电极链为驱动电极链，所述第二电极链为感应电极链；
或者，所述第一电极链为感应电极链，所述第二电极链为驱动电极链。
优选地，所述步骤S10具体包括：步骤S101：在所述基板上沉积第一电极链膜，接着在所述第一电极链膜上涂布绝缘层膜；步骤S102：通过曝光、显影工艺形成包括所述绝缘层的图形；步骤S103：通过刻蚀工艺形成包括所述第一电极链的图形。
优选地，所述步骤S11具体包括：步骤S111：在完成所述步骤S10的所述基板上沉积第二电极链膜；步骤S112：在所述第二电极链膜上涂布光刻胶，通过曝光、显影、刻蚀和光刻胶剥离工艺形成包括所述第二电极链的图形。
优选地，在所述步骤S10之前，所述制备方法还包括：在所述基板上对应形成所述第一电极链和所述第二电极链的区域外围形成黑矩阵。
优选地，在所述步骤S10之前且在形成所述黑矩阵之后，所述制备方法还包括：采用一次构图工艺在所述基板上对应形成所述黑矩阵的区域形成第一金属走线和第二金属走线；所述第一金属走线连接所述第一电极链，所述第二金属走线连接所述第二电极链。
本发明还提供一种采用上述制备方法制备的触控面板，包括基板以及依次设置在所述基板上的第一电极链、绝缘层和第二电极链，所述绝缘层覆盖所述第一电极链，所述第二电极链和所述第一电极链空间交叉并绝缘。
优选地，所述绝缘层的图形和所述第一电极链的图形相同。
优选地，所述触控面板还包括黑矩阵、第一金属走线和第二 金属走线，所述黑矩阵对应设置在所述基板的所述第一电极链和所述第二电极链所在区域的外围；所述第一金属走线和所述第二金属走线对应设置在所述黑矩阵所在区域；所述第一金属走线连接所述第一电极链，所述第二金属走线连接所述第二电极链。
优选地，所述第一电极链和所述绝缘层还延伸至所述黑矩阵所在区域并覆盖所述第一金属走线，所述第二电极链还延伸至所述黑矩阵所在区域并覆盖所述第二金属走线。
优选地，所述基板为保护盖板，所述保护盖板用于盖合在显示屏上，且所述保护盖板的形成有所述第一电极链和所述第二电极链的一面朝向所述显示屏；
或者，所述基板为彩膜基板，所述彩膜基板用于与阵列基板对盒，所述第一电极链和所述第二电极链设置在所述彩膜基板的背对所述阵列基板的一侧，且所述第一电极链和所述第二电极链的背对所述彩膜基板的一侧还设置有偏光片；
或者，所述基板为阵列基板，所述阵列基板上设置有彩膜层，所述第一电极链和所述第二电极链设置在所述彩膜层上方。
本发明还提供一种显示装置，包括上述触控面板。
本发明的有益效果：本发明所提供的触控面板的制备方法，通过采用两次构图工艺步骤就能完成第一电极链和第二电极链(即触控电极)的制备，相比于现有技术中通过三个构图工艺步骤才能完成触控电极的制备的情况，本实施例中触控面板的制备方法大大简化了工艺流程，从而大大降低了触控面板的制备成本。
本发明所提供的触控面板，通过采用上述制备方法制备，结构简单，制备成本低。本发明所提供的显示装置，通过采用上述触控面板，简化了该显示装置的制备工艺，同时还降低了该显示装置的制备成本。
附图说明
图1为本发明的第一实施例中的触控面板的制备方法的流 程图。
图2为步骤S8在基板上形成黑矩阵的俯视示意图。
图3为步骤S9在基板上形成第一金属走线和第二金属走线的俯视示意图。
图4为步骤S10在基板上形成第一电极链的俯视示意图。
图5为步骤S11在基板上形成第二电极链的俯视示意图。
图6为本发明的第二实施例中的触控面板的结构的俯视示意图。
图7为图6中的触控面板沿AA剖切线的剖视图。
图8为图6中的触控面板沿BB剖切线的剖视图。
图9为图6中的触控面板沿CC剖切线的剖视图。
具体实施方式
为使本领域的技术人员更好地理解本发明的技术方案，下面结合附图和具体实施方式对本发明所提供的触控面板的制备方法、触控面板和显示装置作进一步详细描述。
第一实施例
本实施例提供一种触控面板的制备方法，如图1至图5所示，该制备方法包括：步骤S10，采用一次构图工艺在基板1上形成包括第一电极链2和绝缘层的图形，其中，绝缘层形成于第一电极链2上，且绝缘层覆盖第一电极链2；步骤S11，采用一次构图工艺在完成步骤S10的基板1上形成包括第二电极链4的图形，其中，第二电极链4和第一电极链2空间交叉并相互绝缘。
本实施例的触控面板的制备方法中，通过采用两次构图工艺步骤就能完成第一电极链2和第二电极链4(即触控电极)的制备，相比于现有技术中通过三个构图工艺步骤才能完成触控电极的制备的情况，本实施例中的触控面板的制备方法大大简化了工艺流程，从而大大降低了触控面板的制备成本。
本实施例中，第一电极链2和第二电极链4均采用透明导电 材料制成，绝缘层采用透明感光材料制成。例如，第一电极链2和第二电极链4可以均采用氧化铟锡材料制成，绝缘层可以采用环氧树脂材料制成。由于第一电极链2和第二电极链4均采用透明导电材料制成，所以使得第一电极链2和第二电极链4的空间交叉位置(即桥点位置)能够透光，相比于现有技术中驱动电极链和感应电极链的空间交叉位置为金属材料的情况，本实施例中的空间交叉位置的色差大大减小，即，桥点基本不可见，从而使得在进行显示时空间交叉位置不会出现阴影，提升了显示效果。
本实施例中，第一电极链2为驱动电极链，第二电极链4为感应电极链。
需要说明的是，第一电极链2也可以为感应电极链，此时，第二电极链4为驱动电极链。即，本发明中不对驱动电极链和感应电极链的制备的先后顺序进行限定。
该实施例中，步骤S10具体包括以下子步骤S101至S103。
子步骤S101：在基板上沉积第一电极链膜，接着在第一电极链膜上涂布绝缘层膜。
子步骤S102：通过曝光、显影工艺形成包括绝缘层的图形。
该子步骤中，由于绝缘层采用透明感光材料，因此，经过曝光、显影后，绝缘层的图形形成。
子步骤S103：通过刻蚀工艺形成包括第一电极链2的图形。
该子步骤中，绝缘层的图形覆盖的第一电极链膜不会被刻蚀掉，绝缘层的图形未覆盖的第一电极链膜被刻蚀掉，因此，最终形成的第一电极链2的图形与绝缘层的图形完全相同，且绝缘层的图形覆盖第一电极链2的图形。同时，绝缘层能起到使第一电极链2与后续形成在其上方的第二电极链4之间相互绝缘的作用。
该实施例中，第一电极链2包括连接在一起的多个第一电极21、以及将相邻的第一电极21进行电连接的多个第一桥点连接段22。
通过子步骤S101至S103，使得第一电极链2和绝缘层只通 过一次构图工艺就能形成，简化了工艺流程。
本实施例中，步骤S11具体包括：子步骤S111，在完成步骤S10的基板上沉积第二电极链膜；子步骤S112，在所述第二电极链膜上涂布光刻胶，通过曝光、显影、刻蚀和光刻胶剥离工艺形成包括第二电极链4的图形。
该步骤中，只通过一次构图工艺就能形成第二电极链4的图形，其中，第二电极链4包括连接在一起的多个第二电极41、以及将相邻的第二电极41进行电连接的多个第二桥点连接段42。第一桥点连接段22和第二桥点连接段42空间交叉并通过绝缘层相互绝缘。
通过子步骤S111至S112，使得第二电极链4只通过一次构图工艺就能形成，简化了工艺流程。
本实施例中，在步骤S10之前，所述制备方法还可以包括：步骤S8，在基板1上与要形成第一电极链2和第二电极链4的区域对应的区域的外围形成黑矩阵5。
具体地，在该步骤中，先在基板1上涂布黑色光敏胶，然后经过曝光、显影工艺，形成黑矩阵5的图形。
由于基板上与要形成第一电极链2和第二电极链4的区域对应的区域的外围为非触控区域，该非触控区域用于与显示面板的非显示区域相对应，所以需要在该区域制作黑矩阵5进行遮挡。
本实施例中，在步骤S8之后，所述制备方法还可以包括：步骤S9，采用一次构图工艺在基板上与形成黑矩阵5的区域对应的区域上形成第一金属走线6和第二金属走线7。第一金属走线6连接第一电极链2，第二金属走线7连接第二电极链4。
该实施例中，第一金属走线6用于将第一电极链2与其驱动电路连接，第二金属走线7用于将第二电极链4与其驱动电路连接。第一金属走线6和第二金属走线7形成在黑矩阵5所在的区域，使第一金属走线6和第二金属走线7的设置不会影响触控面板的正常触控以及显示面板的正常显示。
本实施例具有如下有益效果。本实施例中所提供的触控面板 的制备方法通过采用两次构图工艺步骤就能完成第一电极链和第二电极链(即触控电极)的制备，相比于现有技术中通过三个构图工艺步骤才能完成触控电极的制备的情况，本实施例中的触控面板的制备方法大大简化了工艺流程，从而大大降低了触控面板的制备成本。
第二实施例
本实施例提供一种采用第一实施例中的制备方法制备的触控面板，如图6和图7所示，该触控面板包括基板1以及依次设置在基板1上的第一电极链2、绝缘层3和第二电极链4，绝缘层3覆盖第一电极链2，第二电极链4和第一电极链2空间交叉并相互绝缘。
该触控面板结构简单、制备成本低，同时，由于第一电极链2和第二电极链4均采用透明导电材料制成，所以使得第一电极链2和第二电极链4的空间交叉位置(即桥点位置)能够透光，这使得空间交叉位置与其他位置的色差大大减小，即桥点基本不可见，从而使得在显示时空间交叉位置不会出现阴影，提升了显示效果。
本实施例中，绝缘层3的图形和第一电极链2的图形相同。如此设置，既能使绝缘层3起到使第一电极链2和第二电极链4相互绝缘的作用，又能简化第一电极链2的制备工艺。
本实施例中，触控面板还包括黑矩阵5、第一金属走线6和第二金属走线7，黑矩阵5设置在基板1的与第一电极链2和第二电极链4所在区域对应的区域的外围。由于基板1上与第一电极链2和第二电极链4所在区域对应的区域的外围为非触控区域，该非触控区域用于与显示面板的非显示区域相对应，所以黑矩阵5的设置能够对非显示区域形成遮挡，使显示面板的非显示区域不会对其正常显示造成影响。
第一金属走线6和第二金属走线7设置在黑矩阵5所在区域，第一金属走线6连接第一电极链2，第二金属走线7连接第 二电极链4。第一金属走线6用于将第一电极链2与其驱动电路连接，第二金属走线7用于将第二电极链4与其驱动电路连接。第一金属走线6和第二金属走线7形成在黑矩阵5所在的区域使得第一金属走线6和第二金属走线7的设置不会影响触控面板的正常触控以及显示面板的正常显示。
本实施例中，如图8和图9所示，第一电极链2和绝缘层3还延伸至黑矩阵5所在区域并覆盖第一金属走线6，第二电极链4还延伸至黑矩阵5所在区域并覆盖第二金属走线7。第一电极链2和绝缘层3能够对第一金属走线6形成很好的保护，保护第一金属走线6不被氧化。第二电极链4能够对第二金属走线7形成很好的保护，保护第二金属走线7不被氧化。
本实施例中，基板1为保护盖板，保护盖板用于盖合在显示面板上，且保护盖板的形成有第一电极链2和第二电极链4的一面朝向显示面板。即，该触控面板与显示面板的结合方式为OGS方式。
需要说明的是，基板1也可以为彩膜基板，彩膜基板用于与阵列基板对盒，第一电极链2和第二电极链4可以设置在彩膜基板的远离阵列基板的一侧上，且第一电极链2和第二电极链4的远离彩膜基板的一侧上还设置有偏光片。即，该触控面板与显示面板的结合方式也可以为On-cell方式。
另外，基板1也可以为阵列基板，阵列基板上设置有彩膜层，第一电极链2和第二电极链4可以设置在彩膜层上方。即，该触控面板也可以与COA模式的显示面板以On-cell方式结合。
本实施例具有如下有益效果。本实施例中的触控面板通过采用第一实施例中的制备方法制备，其结构简单、制备成本低，同时，由于第一电极链和第二电极链均采用透明导电材料制成，所以使得第一电极链和第二电极链的空间交叉位置(即桥点位置)能够透光，这使得空间交叉位置与其他位置的色差大大减小，即桥点基本不可见，从而使得在进行显示时空间交叉位置不会出现阴影，提升了显示效果。
第三实施例
本实施例提供一种显示装置，包括第二实施例中的触控面板。
通过采用第二实施例中的触控面板，简化了该显示装置的制备工艺，同时还降低了该显示装置的制备成本。
需要说明的是，本实施例中的显示装置可以为：液晶面板、液晶电视、显示器、OLED面板、OLED电视、电子纸、手机、平板电脑、笔记本电脑、数码相框、导航仪等具有触控显示功能的任何产品或部件。
可以理解的是，以上实施方式仅仅是为了说明本发明的原理而采用的示例性实施方式，然而本发明并不局限于此。对于本领域内的普通技术人员而言，在不脱离本发明的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本发明的保护范围。

Claims (16)

  1. 一种触控面板的制备方法，包括：
    步骤S10，采用一次构图工艺在基板上形成包括第一电极链和绝缘层的图形，所述绝缘层形成于所述第一电极链上，且所述绝缘层覆盖所述第一电极链；以及
    步骤S11，采用一次构图工艺在完成所述步骤S10的基板上形成包括第二电极链的图形，所述第二电极链和所述第一电极链空间交叉并相互绝缘。
  2. 根据权利要求1所述的制备方法，其中，所述第一电极链和所述第二电极链均采用透明导电材料制成，所述绝缘层采用透明感光材料制成。
  3. 根据权利要求1所述的制备方法，其中，所述第一电极链为驱动电极链，所述第二电极链为感应电极链。
  4. 根据权利要求1所述的制备方法，其中，所述第一电极链为感应电极链，所述第二电极链为驱动电极链。
  5. 根据权利要求1所述的制备方法，其中，所述步骤S10包括：
    子步骤S101，在所述基板上沉积第一电极链膜，接着在所述第一电极链膜上涂布绝缘层膜；
    子步骤S102，通过曝光、显影工艺形成包括所述绝缘层的图形；以及
    子步骤S103，通过刻蚀工艺形成包括所述第一电极链的图形。
  6. 根据权利要求1所述的制备方法，其中，所述步骤S11 包括：
    子步骤S111，在完成所述步骤S10的所述基板上沉积第二电极链膜；以及
    子步骤S112，在所述第二电极链膜上涂布光刻胶，通过曝光、显影、刻蚀和光刻胶剥离工艺形成包括所述第二电极链的图形。
  7. 根据权利要求1所述的制备方法，其中，在所述步骤S10之前，所述制备方法还包括：步骤S8，在所述基板上与要形成所述第一电极链和所述第二电极链的区域对应的区域的外围形成黑矩阵。
  8. 根据权利要求7所述的制备方法，其中，在所述步骤S8之后，所述制备方法还包括：步骤S9，采用一次构图工艺在所述基板上与形成所述黑矩阵的区域对应的区域上形成第一金属走线和第二金属走线，所述第一金属走线连接所述第一电极链，所述第二金属走线连接所述第二电极链。
  9. 一种采用如权利要求1所述的制备方法制备的触控面板，包括基板以及依次设置在所述基板上的第一电极链、绝缘层和第二电极链，其中，所述绝缘层覆盖所述第一电极链，所述第二电极链和所述第一电极链空间交叉并相互绝缘。
  10. 根据权利要求9所述的触控面板，其中，所述绝缘层的图形和所述第一电极链的图形相同。
  11. 根据权利要求9所述的触控面板，还包括黑矩阵、第一金属走线和第二金属走线，其中
    所述黑矩阵设置在所述基板的所述第一电极链和所述第二电极链所在区域的外围；以及
    所述第一金属走线和所述第二金属走线设置在所述黑矩阵所在区域，所述第一金属走线连接所述第一电极链，所述第二金属走线连接所述第二电极链。
  12. 根据权利要求11所述的触控面板，其中，所述第一电极链和所述绝缘层还延伸至所述黑矩阵所在区域并覆盖所述第一金属走线，所述第二电极链还延伸至所述黑矩阵所在区域并覆盖所述第二金属走线。
  13. 根据权利要求9所述的触控面板，其中，所述基板为保护盖板，所述保护盖板用于盖合在显示面板上，且所述保护盖板的形成有所述第一电极链和所述第二电极链的一面朝向所述显示面板。
  14. 根据权利要求9所述的触控面板，其中，所述基板为彩膜基板，所述彩膜基板用于与阵列基板对盒，所述第一电极链和所述第二电极链设置在所述彩膜基板的远离所述阵列基板的一侧上，且所述第一电极链和所述第二电极链的远离所述彩膜基板的一侧上还设置有偏光片。
  15. 根据权利要求9所述的触控面板，其中，所述基板为阵列基板，所述阵列基板上设置有彩膜层，所述第一电极链和所述第二电极链设置在所述彩膜层上方。
  16. 一种显示装置，包括权利要求9-15中任意一项所述的触控面板。
PCT/CN2016/079261 2015-05-29 2016-04-14 触控面板的制备方法、触控面板和显示装置 Ceased WO2016192469A1 (zh)

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