WO2017143658A1 - 触摸屏及其制作方法、触摸装置 - Google Patents

触摸屏及其制作方法、触摸装置 Download PDF

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Publication number
WO2017143658A1
WO2017143658A1 PCT/CN2016/080901 CN2016080901W WO2017143658A1 WO 2017143658 A1 WO2017143658 A1 WO 2017143658A1 CN 2016080901 W CN2016080901 W CN 2016080901W WO 2017143658 A1 WO2017143658 A1 WO 2017143658A1
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WIPO (PCT)
Prior art keywords
region
electrode layer
touch electrode
layer
touch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/080901
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English (en)
French (fr)
Inventor
张明
胡明
谢晓冬
王静
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
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Application filed by BOE Technology Group Co Ltd, Hefei Xinsheng Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to US15/526,925 priority Critical patent/US10545617B2/en
Publication of WO2017143658A1 publication Critical patent/WO2017143658A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • 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
    • G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
    • 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
    • G06F3/0412—Digitisers structurally integrated in a display

Definitions

  • Embodiments of the present invention relate to a touch screen and a method of fabricating the same, and a touch device including the touch screen.
  • the touch screen is mainly divided into a capacitive touch screen, a resistive touch screen, an infrared touch screen, an acoustic wave touch screen, and a near field imaging (NFI) touch screen.
  • touch screens Due to its advantages of being lightweight and easy to operate, touch screens have become an indispensable component of handheld terminals such as mobile phones, tablet computers, and personal digital assistants, and are increasingly used in notebook computers, desktop computers, and the like. Therefore, there is a need to continuously improve the performance of the touch screen.
  • Embodiments of the present invention provide a touch screen capable of avoiding peeling of a touch electrode, a manufacturing method thereof, and a touch device including the touch screen, thereby improving performance and production yield of the touch screen and the touch device.
  • a touch screen includes a substrate, a touch electrode layer over the substrate, and an organic insulating layer under the touch electrode layer, wherein at least the touch electrode layer
  • the peripheral region includes a hollowed out region having a hollowed out pattern, the hollowed out region being disposed at least in a region where the peripheral region overlaps the organic insulating layer; the hollowed out pattern partially exposes the organic insulating layer, and causes the touch
  • the control electrode layer remains in electrical communication.
  • At least the peripheral region of the touch electrode layer includes a hollow region having a hollow pattern, and the hollow region is disposed at least in the peripheral region overlapping the organic insulating layer In the region, during the high-temperature process such as subsequent baking, the exhaust passage can be left for the gas released by the organic insulating layer in a high-temperature environment, thereby preventing the touch electrode layer from being peeled off due to the gassing problem.
  • the hollow pattern includes a plurality of thin strips spaced apart from each other; in a lateral electrical communication region of the touch electrode layer, the plurality of thin strips extend in a lateral direction; and in the contact A region of the longitudinally electrically connected regions of the control electrode layer, the plurality of strips extending in a longitudinal direction.
  • the hollow pattern comprises: a mesh pattern, or a dense hole pattern.
  • the hollow pattern can be flexibly implemented in various ways.
  • the organic insulating layer comprises a cover layer.
  • the organic insulating layer further includes a black matrix layer located at a periphery of the substrate and below the cover layer.
  • whether the cover layer or the black matrix layer can utilize the hollow pattern to avoid peeling of the touch electrode layer caused by the deflation problem in a high temperature environment.
  • only the peripheral region of the touch electrode layer includes a cutout region having a hollow pattern.
  • the non-peripheral region of the touch electrode layer does not include the hollow region having the hollow pattern, and is still in the original sheet shape.
  • the pattern of the AA area the effective display area, that is, the area of the display panel corresponding to the touch panel corresponding to the touch screen
  • the touch screen is an integrated touch screen.
  • the touch electrode layer is directly formed on the protective substrate by using the integrated touch technology, the structural complexity and the manufacturing cost of the touch screen can be reduced.
  • a method of fabricating a touch panel includes: forming an organic insulating layer over a substrate; and forming a touch electrode layer over the organic insulating layer, wherein forming the touch electrode layer includes : forming at least in a peripheral region of the touch electrode layer a hollowed out region having a hollowed out pattern, the hollowed out pattern partially exposing the organic insulating layer, and maintaining the touch electrode layer in electrical communication; and forming a hollowed out region in a peripheral region of the touch electrode layer including: at least The hollowed out region is formed in a region where the peripheral region overlaps the organic insulating layer.
  • the hollow region is formed at least in the peripheral region of the touch electrode layer and at least in the region where the peripheral region overlaps with the organic insulating layer, it can be organically insulated during a high temperature process such as subsequent baking.
  • the gas released by the layer in a high temperature environment leaves the exhaust passage, thereby preventing the touch electrode layer from being peeled off due to the gassing problem.
  • forming a hollowed out region having a hollow pattern includes: forming a plurality of spaced apart thin strips extending in a lateral direction in a laterally electrically connected region of the touch electrode layer; and The region of the longitudinally electrically connected layer of the control electrode layer defines a plurality of spaced apart strips extending in the longitudinal direction.
  • forming the cutout region having the hollow pattern includes forming a cutout region having a mesh pattern or a dense hole pattern.
  • the hollow pattern can be flexibly formed in various ways.
  • forming the organic insulating layer includes forming a black matrix layer on a periphery of the substrate.
  • the forming the organic insulating layer further includes forming a cap layer over the black matrix layer.
  • the hollow pattern can be utilized to avoid peeling of the touch electrode layer caused by the gassing problem in a high temperature environment.
  • the forming the touch electrode layer includes: forming a hollow region having a hollow pattern only in a peripheral region of the touch electrode layer.
  • the hollow region having the hollow pattern is not formed in the non-peripheral region of the touch electrode layer, and the original sheet shape is still formed.
  • the pattern of the AA area the effective display area, that is, the area of the display panel corresponding to the touch panel corresponding to the touch screen
  • a touch device comprising the touch screen according to any of the above first to seventh aspects.
  • the peripheral region of the touch electrode layer since at least the peripheral region of the touch electrode layer includes a hollow region having a hollow pattern, and the hollow region is disposed at least in a region where the peripheral region overlaps with the organic insulating layer, a high temperature process such as subsequent baking is performed. During this period, an exhaust passage can be left for the gas released by the organic insulating layer in a high temperature environment, thereby preventing the touch electrode layer from being peeled off due to the gassing problem.
  • FIG. 1A and 1B are cross-sectional views of a touch screen in which an embodiment of the present invention may be applied;
  • FIG. 2 is a top plan view of a prior art touch electrode layer pattern
  • FIG. 3 is a view showing a problem of peeling off of a touch electrode layer existing in the prior art
  • FIGS. 4A and 4B are top plan views showing a touch electrode layer pattern according to various embodiments of the present invention.
  • FIG. 5 is a flow chart of a method of fabricating a touch screen according to an embodiment of the invention.
  • the existing touch screen uses an organic substance as an insulating layer such as an OC layer (over coat layer) or a BM layer (black matrix layer).
  • an organic material has a problem of gassing in a high-temperature environment, which causes problems such as peeling of the touch electrode during a high-temperature process such as subsequent baking, thereby causing a short circuit of the electrical path.
  • Embodiments of the present invention provide a touch screen and a method of fabricating the same, and a touch device including the touch screen. According to the embodiment of the present invention, the above problems can be effectively avoided, thereby improving the performance and production yield of the touch screen and the touch device.
  • the touch panel, the manufacturing method thereof, and the touch device of the present invention will be specifically described in the corresponding embodiments.
  • FIGS. 1A and 1B are cross-sectional views of a touch screen in which an embodiment of the present invention can be applied.
  • the touch screen is an OGS (One Glass Solution) capacitive touch screen.
  • the OGS touch screen is a technology for directly forming a touch electrode layer and a sensor on a substrate, wherein the one substrate simultaneously serves the dual function of protecting the cover plate and the touch sensor.
  • FIGS. 1A and 1B are merely illustrative examples for explaining the principles of the present invention.
  • the touch screen in which the embodiments of the present invention can be applied is not limited to the OGS capacitive touch screen.
  • the touch screen may include a substrate 102 , a BM layer 104 , an IM layer (index matching layer) 106 , a metal layer 108 , an OC layer 110 , and a touch electrode layer 112 .
  • the substrate 102 serves both as a protective cover and a touch sensor and can be made of materials such as glass or plastic.
  • the BM layer 104 is disposed over the peripheral region of the substrate 102, mainly for preventing light leakage, and is made of an organic insulating material (for example, a resin material containing a black dye).
  • the IM layer 106 is partially disposed over the BM layer 104 and partially disposed over the substrate 102.
  • the IM layer 106 serves to reduce the visibility of the etching marks of the touch electrode layer 112 described later, and may be made of an index matching material (for example, titanium oxide, silicon dioxide, or the like).
  • the metal layer 108 is disposed over the IM layer 106 for electrical connection and may be made of a metallic material (eg, molybdenum, aluminum, etc.).
  • the OC layer 110 is partially disposed over the metal layer 108 and partially disposed over the IM layer 106.
  • the OC layer 110 is used to achieve partial electrical insulation between the metal layer 108 and the touch electrode layer 112 described later, and Made of an organic insulating material such as a resin material.
  • the touch electrode layer 112 is partially disposed over the IM layer 106, partially disposed over the metal layer 108, and partially disposed over the OC layer 110. As shown, the two portions of the touch electrode layer 112 on the left and right sides are electrically connected by a bridge formed by the metal layer 108.
  • the touch electrode layer 112 is for detecting a touch position by a change in capacitance when touched by an object (for example, a finger), and may be made of a transparent electrode material (for example, indium tin oxide ITO). In the touch screen shown in FIG. 1A, the touch electrode layer 112 overlaps the OC layer 110 at least in a region 114 defined by the two OC edges of the OC layer 110.
  • the touch screen shown in FIG. 1B is substantially similar to FIG. 1A except that the touch screen of FIG. 1B eliminates the IM layer 106. Therefore, the configurations of the substrate 102, the BM layer 104, the metal layer 108, the OC layer 110, and the touch electrode layer 112 of the touch screen shown in FIG. 1B are not described herein again.
  • the touch electrode layer 112 in the region 116 defined by the two BM edges of the BM layer 104, the touch electrode layer 112 either overlaps with the OC layer 110 or overlaps the BM layer 104. It should be noted that although the leftmost portion of the touch electrode layer 112 does not contact the BM layer 104 due to the metal layer 108 as shown in FIG.
  • the metal layer 108 is in a direction perpendicular to the plane of the paper of FIG. 1B.
  • the extension length is smaller than the BM layer 104 and the touch electrode layer 112, so the leftmost portion of the touch electrode layer 112 is still in contact with the BM layer 104 in a region where the metal layer 108 is not provided.
  • FIG. 2 is a top plan view of a prior art touch electrode layer pattern.
  • This top view corresponds to the cross-sectional view shown in Figs. 1A and 1B, wherein a cross-sectional view taken along line O-O' of the top view is Fig. 1A or 1B.
  • the repeating unit includes: laterally extending regions 112-1 and 112-2 electrically connected by a bridge formed by the metal layer 108, as previously described; and longitudinally extending regions 112-3 and 112-4, It is electrically connected in the longitudinal direction.
  • the repeating unit also includes eight dummy regions for reducing the difference in pattern density without actually acting in touch detection (that is, no current is passed through the dummy regions).
  • FIG. 2 shows an SEM (Scanning Electron Microscope) photograph of the peeling problem of the touch electrode layer existing in the prior art. As shown in FIG. 3, in the existing touch screen, the touch electrode layer is partially peeled off. This problem is more obvious when the process is not adjusted.
  • FIG. 4A and 4B are top views showing patterns of touch electrode layers in accordance with various embodiments of the present invention. For the sake of clarity, some of the components shown in Figure 2 are omitted in Figures 4A and 4B.
  • the entire peripheral area 118 of the touch electrode layer is a hollowed out area having a hollow pattern
  • one edge of the peripheral area 118 is the edge of the touch screen
  • the other edge is an OC edge near the middle of the touch screen.
  • the edge of the BM extends to the inside of the touch screen by a certain distance (for example, 1-3 mm).
  • the hollowed out pattern is a plurality of spaced apart thin strips extending in the lateral direction, and in the longitudinally electrically connected regions 112-3 and 112-4, the hollowed out pattern is A plurality of spaced apart strips extending longitudinally. In the four dummy areas on the left side, the cutout pattern is a plurality of spaced apart thin strips extending in the lateral direction.
  • the dark area indicates the area where the touch electrode layer is not provided
  • the white area indicates the area where the touch electrode layer is provided. That is, the hollow pattern of the touch electrode layer is represented by a plurality of mutually spaced white thin strips extending in the lateral direction and a plurality of mutually spaced white thin strips extending in the longitudinal direction, and passed in the lateral direction Extending a plurality of mutually spaced dark lines, and a plurality of mutually spaced dark lines extending in the longitudinal direction, represent the exhaust passages mentioned below.
  • the gap between the strips can serve as a gas released by the OC layer or the BM layer in a high temperature environment during a high-temperature process such as subsequent baking.
  • the channel is discharged, thereby preventing the touch electrode peeling problem caused by the large touch electrode layer covering the organic material, and the purpose of improving the yield is achieved without increasing the difficulty of the process.
  • the strips extend in the lateral direction in the laterally electrically connected regions and in the longitudinally electrically connected regions in the longitudinal direction, the electrical communication of the touch electrode layers can be maintained, thereby balancing the problem of gassing and electrical communication.
  • the touch electrode layer of the non-peripheral region other than the peripheral region is not modified, so that the pattern in the AA region is not changed from a sheet to a thin strip.
  • the touch electrode pattern blanking and electrical problems caused by the shape ensure that the final product will not be affected.
  • the present invention is not limited to the example shown in FIG. 4A.
  • the setting of the hollow pattern The circumference can vary.
  • the peripheral region 118 of the touch electrode layer may be only in the region overlapping the OC layer (ie, regions 114, 120, and 122, where region 114 is defined by the OC edge)
  • the peripheral region 118 of the touch electrode layer may only be in a region overlapping the OC layer and the BM layer (ie, regions 116, 120, and 122, wherein The region 116 has a hollow pattern in the region defined by the edge of the BM.
  • the touch electrode layer may or may not have a hollow pattern in a region in contact with the metal layer 108 but not in contact with the BM layer. That is to say, the area where the touch electrode layer overlaps the organic insulating layer (OC layer or BM layer) may include only the areas where the two directly overlap, or may include both the areas where the two directly overlap, and both. Indirect overlapping regions (i.e., regions where the two are overlapped by other layers such as metal layer 108).
  • the peripheral region of the touch electrode layer is not limited to the example described above, but may cover at least the region 114 of FIG. 1A or the region 116 of FIG. 1B. Thus, if the peripheral region of the touch electrode layer covers only the region 114 of FIG.
  • the periphery of the touch electrode layer may have a hollow pattern only in a region overlapping the OC layer (ie, a region 114 defined by the OC edge); and in the case illustrated in FIG. 1B, the peripheral region of the touch electrode layer may be only in the OC layer
  • the area overlapping with the BM layer ie, the area 116 defined by the edge of the BM
  • the touch electrode layer is provided with a hollow pattern area. The same as the OC layer, and will not be described again.
  • the non-peripheral region of the touch electrode layer also includes a hollow region having a hollow pattern, and the hollow region may be disposed at least in the non-peripheral region and the organic insulating layer. Overlapping areas (similar to overlapping areas in the surrounding area, not repeated here). That is to say, in an extreme case, the entire touch electrode layer may have a hollow pattern.
  • the non-peripheral region of the touch electrode layer is less affected by the high temperature deflation problem of the organic insulating layer than the peripheral region of the touch electrode layer, the non-peripheral region of the touch electrode layer is also In the case of a hollowed out area, the density of the hollow pattern in the non-peripheral area may be smaller than the density of the hollowed out pattern in the peripheral area, thereby alleviating the aforementioned touch electrode pattern blanking and electrical problems.
  • the direction in which the strips extend may not necessarily be strictly in the transverse or longitudinal direction, but may be inclined relative to the transverse or longitudinal direction.
  • the hollow pattern of the dummy area may have a plurality of spaced apart thin strips extending longitudinally.
  • each of the four dummy regions on the left side may have a plurality of spaced apart thin strips extending laterally or longitudinally, or no openwork pattern (ie, still tabular).
  • FIG. 4B is similar to FIG. 4A except that the hollow pattern of FIG. 4B is a mesh pattern. Similar to FIG. 4A, in FIG. 4B, the dark area indicates the area where the touch electrode layer is not provided, and the white area indicates the area where the touch electrode layer is disposed. That is, the hollow pattern of the touch electrode layer is indicated by a white grid line, and the exhaust passage is represented by a plurality of dark squares defined by the grid lines.
  • the mesh of the mesh pattern can serve as a discharge passage of the gas released by the OC layer or the BM layer in a high temperature environment during a high-temperature process such as subsequent baking, thereby preventing large-size touch.
  • the electrode layer covers the peeling problem of the touch electrode caused by the organic material, and the purpose of improving the yield is achieved without increasing the difficulty of the process.
  • the electrical connection of the touch electrode layers can be maintained, thereby balancing the problem of gassing and electrical communication.
  • the present invention is not limited to the example shown in FIG. 4B.
  • the setting range of the hollow pattern may vary, and details are not described herein again.
  • the mesh of the mesh pattern is not limited to a square, but may be a rectangle, a diamond, a circle, an ellipse, an irregular shape, or the like; wherein when the mesh is a circular or elliptical shape, the mesh pattern may be It is considered equivalent to a dense hole pattern.
  • each of the four dummy areas on the left side may have a mesh pattern or a dense hole pattern, or may have no hollow pattern (ie, still a sheet shape).
  • the hollow pattern is not limited to the above example as long as the hollow pattern partially exposes the underlying organic insulating layer (for example, the OC layer or the BM layer) and keeps the touch electrode layer in electrical communication.
  • FIG. 5 is a flow chart of a method of fabricating a touch screen according to an embodiment of the invention.
  • an organic insulating layer is formed over the substrate.
  • step 502 can include the following sub-steps: First, a BM layer is formed in a peripheral region of the substrate. This sub-step can be implemented using any of the existing techniques for forming a BM layer.
  • the BM layer can be formed in the peripheral region of the substrate by sequentially performing photoresist coating, exposure using a mask, development with a developing solution, etching with an etching solution, and stripping of the photoresist. Subsequently, a metal layer can be formed over the BM layer.
  • This sub-step can be implemented using any of the existing techniques for forming a metal layer.
  • a metal layer can be formed over the black matrix layer by deposition, coating or sputtering.
  • an OC layer is formed over the BM layer or the metal layer.
  • This sub-step can be implemented using techniques similar to any of the existing techniques for forming a BM layer, and will not be described again.
  • a touch electrode layer is formed on the organic insulating layer, wherein forming the touch electrode layer includes: forming a hollow region having a hollow pattern at least in a peripheral region of the touch electrode layer, wherein the hollow pattern makes the organic The insulating layer is partially exposed and maintains the touch electrode layer in electrical communication; wherein forming the hollow region in the peripheral region of the touch electrode layer includes forming the hollow region at least in a region where the peripheral region overlaps the organic insulating layer.
  • the peripheral region of the touch electrode layer, the hollow pattern, and the overlapping region the above has been described in detail, and details are not described herein again.
  • step 504 can include the following sub-steps: First, a touch electrode layer (eg, an ITO layer) can be formed on a substrate on which an organic insulating layer (eg, an OC layer or a BM layer) is formed. This sub-step can be accomplished using any of the existing techniques for deposition, coating or sputtering of the ITO film. Subsequently, the formed touch electrode layer may be patterned to form an electrode pattern having the hollow pattern.
  • an ITO layer eg, an ITO layer
  • an organic insulating layer eg.g, an OC layer or a BM layer
  • an electrode pattern having the hollow pattern may be formed by sequentially performing photoresist coating, exposure using a mask, development with a developer, etching with an etching solution, and stripping of the photoresist, wherein The mask used can make the touch
  • the electrode layer has a hollow pattern at least in the peripheral region and at least in the region where the peripheral region overlaps the organic insulating layer.
  • the hollow pattern since the hollow pattern is formed, the release of the organic gas caused by the high-temperature process in the process can be realized by the portion of the hollow pattern partially exposed by the underlying organic insulating layer, thereby preventing the touch electrode layer from being in the peripheral region. Deterioration of product performance caused by shedding, to achieve the goal of improving yield without increasing the difficulty of the process. Moreover, since the hollow pattern keeps the touch electrode layer in electrical communication, it is possible to balance the problem of gassing and electrical communication.
  • the touch device including the touch screen according to the embodiment of the present invention can effectively avoid the peeling of the touch electrodes, and details are not described herein again.
  • touch devices include, but are not limited to, cell phones, tablet computers, personal digital assistants, notebook computers, desktop computers, and the like.

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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)

Abstract

一种触摸屏及其制作方法、触摸装置。所述触摸屏包括基板（102）、位于基板（102）上方的触控电极层（112）以及位于触控电极层（112）下方的有机绝缘层，其中至少触控电极层（112）的周边区域（118）包括具有镂空图案的镂空区域，该镂空区域至少设置在所述周边区域（118）与有机绝缘层交叠的区域；所述镂空图案使有机绝缘层部分暴露，且使触控电极层（112）保持电连通。触摸屏的制作方法包括：在基板（102）的上方形成有机绝缘层，和在有机绝缘层的上方形成触控电极层（112），其中形成触控电极层（112）包括：至少在触控电极层（112）的周边区域（118）中形成具有镂空图案的镂空区域；在触控电极层（112）的周边区域（118）中形成镂空区域包括：至少在所述周边区域（118）与有机绝缘层交叠的区域形成镂空区域。所述触摸装置包括所述触摸屏。该触摸屏能够避免触控电极剥落，从而提高触摸屏和触摸装置的性能和制作良率。

Description

触摸屏及其制作方法、触摸装置
本申请要求于2016年2月26日递交的中国专利申请第201610108165.X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。
技术领域
本发明的实施例涉及一种触摸屏及其制作方法和一种包括所述触摸屏的触摸装置。
背景技术
目前，触摸屏主要分为电容触摸屏、电阻触摸屏、红外触摸屏、声波触摸屏和近场成像(NFI)触摸屏。由于具有轻便、易于操作等优点，触摸屏已经成为手机、平板电脑、个人数字助理等手持终端的不可或缺的部件，并且也越来越多地被用在笔记本电脑、台式电脑等产品中。因此，存在着不断提高触摸屏的性能的需求。
发明内容
本发明的实施例提供了一种能够避免触控电极剥落的触摸屏及其制作方法和一种包括所述触摸屏的触摸装置，从而能够提高触摸屏和触摸装置的性能和制作良率。
根据本发明的第一方面，提供了一种触摸屏，包括基板、位于所述基板上方的触控电极层以及位于所述触控电极层下方的有机绝缘层，其中至少所述触控电极层的周边区域包括具有镂空图案的镂空区域，所述镂空区域至少设置在所述周边区域与所述有机绝缘层交叠的区域；所述镂空图案使所述有机绝缘层部分暴露，且使所述触控电极层保持电连通。
根据上述配置，由于至少触控电极层的周边区域包括具有镂空图案的镂空区域、并且该镂空区域至少设置在所述周边区域与有机绝缘层交叠的 区域，所以在后续的烘烤等高温工序期间，能够为有机绝缘层在高温环境中释放的气体留出排气通道，从而避免触控电极层由于该放气问题而被剥落。
根据本发明的第二方面，所述镂空图案包括多个相互隔开的细条；在所述触控电极层的横向电连通的区域，所述多个细条在横向上延伸；以及在所述触控电极层的纵向电连通的区域，所述多个细条在纵向上延伸。
根据本发明的第三方面，所述镂空图案包括：网状图案，或者密集孔状图案。
根据上述配置，所述镂空图案可以灵活地以各种方式实现。
根据本发明的第四方面，所述有机绝缘层包括覆盖层。
根据本发明的第五方面，所述有机绝缘层还包括位于所述基板的周边、且位于所述覆盖层下方的黑矩阵层。
根据上述配置，无论是覆盖层还是黑矩阵层，都可以利用所述镂空图案避免其在高温环境中的放气问题导致的触控电极层的剥落。
根据本发明的第六方面，仅所述触控电极层的周边区域包括具有镂空图案的镂空区域。
根据上述配置，触控电极层的非周边区域不包括具有镂空图案的镂空区域，仍为原有的片状。这样，不会发生潜在的在AA区(有效显示区，即触摸屏所对应的显示面板的能够显示图像的区域)的图案由片状变成镂空形式所造成的触控电极图案消隐及电学问题，保证最终产品不会受到影响。
根据本发明的第七方面，所述触摸屏是一体化触摸屏。
根据上述配置，由于采用一体化触摸技术将触控电极层直接形成在保护基板上，所以能够降低触摸屏的结构复杂度和制作成本。
根据本发明的第八方面，提供了一种触摸屏的制作方法，包括：在基板的上方形成有机绝缘层；和在所述有机绝缘层的上方形成触控电极层，其中形成触控电极层包括：至少在所述触控电极层的周边区域中形成 具有镂空图案的镂空区域，所述镂空图案使所述有机绝缘层部分暴露，且使所述触控电极层保持电连通；以及在所述触控电极层的周边区域中形成镂空区域包括：至少在所述周边区域与所述有机绝缘层交叠的区域形成所述镂空区域。
根据上述配置，由于至少在触控电极层的周边区域中、且至少在所述周边区域与有机绝缘层交叠的区域形成镂空区域，所以在后续的烘烤等高温工序期间，能够为有机绝缘层在高温环境中释放的气体留出排气通道，从而避免触控电极层由于该放气问题而被剥落。
根据本发明的第九方面，形成具有镂空图案的镂空区域包括：在所述触控电极层的横向电连通的区域，形成在横向上延伸的多个相互隔开的细条；以及在所述触控电极层的纵向电连通的区域，形成在纵向上延伸的多个相互隔开的细条。
根据本发明的第十方面，形成具有镂空图案的镂空区域包括：形成具有网状图案或者密集孔状图案的镂空区域。
根据上述配置，可以灵活地以各种方式形成所述镂空图案。
根据本发明的第十一方面，形成有机绝缘层包括：在所述基板的周边形成黑矩阵层。
根据本发明的第十二方面，形成有机绝缘层还包括：在所述黑矩阵层的上方形成覆盖层。
根据上述配置，无论是形成黑矩阵层还是覆盖层，都可以利用所述镂空图案避免其在高温环境中的放气问题导致的触控电极层的剥落。
根据本发明的第十三方面，形成触控电极层包括：仅在所述触控电极层的周边区域中形成具有镂空图案的镂空区域。
根据上述配置，在触控电极层的非周边区域中不形成具有镂空图案的镂空区域，仍形成原有的片状。这样，不会发生潜在的在AA区(有效显示区，即触摸屏所对应的显示面板的能够显示图像的区域)的图案由片状变成镂空形式所造成的触控电极图案消隐及电学问题，保证最终产品不会受到影响。
根据本发明的第十四方面，提供了一种触摸装置，包括根据上述第一至第七方面中任一方面所述的触摸屏。
根据上述配置，由于至少触控电极层的周边区域包括具有镂空图案的镂空区域、并且该镂空区域至少设置在所述周边区域与有机绝缘层交叠的区域，所以在后续的烘烤等高温工序期间，能够为有机绝缘层在高温环境中释放的气体留出排气通道，从而避免触控电极层由于该放气问题而被剥落。
附图说明
为了更清楚地说明本发明的实施例的技术方案，下面将对实施例的附图作简单地介绍。明显地，以下附图中的结构示意图不一定按比例绘制，而是以简化形式呈现各特征。而且，下面描述中的附图仅仅涉及本发明的一些实施例，而并非对本发明进行限制。
图1A和1B是可以在其中应用本发明的实施例的触摸屏的横截面视图；
图2是现有技术的触控电极层图案的俯视图；
图3是现有技术中存在的触控电极层剥落问题的视图；
图4A和4B是示出根据本发明的不同实施例的触控电极层图案的俯视图；以及
图5是根据本发明实施例的触摸屏的制作方法的流程图。
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，所描述的实施例仅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。
目前，现有的触摸屏采用有机物作为绝缘层诸如OC层(覆盖层，over coat layer)或者BM层(黑矩阵层，black matrix layer)。但是，采用有机材料会有在高温环境中的放气问题，该放气问题会导致在后续的烘烤等高温工序过程中的触控电极剥落等问题，从而导致电通道的断短路。
本发明的实施例提供了一种触摸屏及其制作方法和一种包括所述触摸屏的触摸装置。根据本发明的实施例，能够有效避免上述问题，从而提高触摸屏和触摸装置的性能和制作良率。在下文中，将以相应的实施例对本发明的触摸屏及其制作方法、触摸装置进行具体说明。
I.触摸屏
图1A和1B是可以在其中应用本发明的实施例的触摸屏的横截面视图。在图1A和1B所示的该示例中，触摸屏是OGS(One Glass Solution，一体化触控)电容触摸屏。OGS触摸屏是在一块基板上直接形成触控电极层及传感器的技术，其中所述一块基板同时起到保护盖板和触摸传感器的双重作用。然而，应注意的是，图1A和1B所示的示例仅仅是用于说明本发明的原理的说明性的示例。如后面详细描述的那样，可以在其中应用本发明的实施例的触摸屏并不限于OGS电容触摸屏。
如图1A所示，触摸屏可以包括基板102、BM层104、IM层(折射率匹配层，index matching layer)106、金属层108、OC层110以及触控电极层112。如前所述，基板102同时起到保护盖板和触摸传感器的双重作用，并且可以由玻璃或塑料等材料制成。BM层104设置在基板102的周边区域之上，主要用于防止漏光，并且由有机绝缘材料(例如，含有黑色染料的树脂材料)制成。IM层106部分地设置在BM层104之上，且部分地设置在基板102之上。IM层106用于降低稍后描述的触控电极层112的蚀刻痕的可视程度，并且可以由折射率匹配材料(例如，二氧化钛和二氧化硅等)制成。金属层108设置在IM层106之上，用于进行电连接，并且可以由金属材料(例如，钼、铝等)制成。OC层110部分地设置在金属层108之上，且部分地设置在IM层106之上。OC层110用于在金属层108和稍后描述的触控电极层112之间实现部分电绝缘，并且由 有机绝缘材料(例如，树脂材料)制成。触控电极层112部分地设置在IM层106之上，部分地设置在金属层108之上，且部分地设置在OC层110之上。如图所示，触控电极层112的位于左右两侧的两个部分通过金属层108形成的搭桥而被电连接。触控电极层112用于在被物体(例如，手指)触摸时通过电容的变化来检测触摸位置，并且可以由透明电极材料(例如，氧化铟锡ITO)制成。在图1A所示的触摸屏中，触控电极层112至少在由OC层110的两个OC边缘限定的区域114与OC层110交叠。
图1B所示的触摸屏与图1A基本相似，其区别仅在于图1B的触摸屏省去了IM层106。因此，对于图1B所示的触摸屏的基板102、BM层104、金属层108、OC层110以及触控电极层112的配置，在此不再赘述。在图1B所示的触摸屏中，在由BM层104的两个BM边缘限定的区域116中，触控电极层112或者与OC层110交叠，或者与BM层104交叠。应注意的是，尽管如图1B所示，触控电极层112的最左侧的部分由于金属层108而未接触BM层104，但是由于金属层108在垂直于图1B纸面的方向上的延伸长度小于BM层104和触控电极层112，所以触控电极层112的最左侧的部分在未设置有金属层108的区域仍与BM层104接触。
图2是现有技术的触控电极层图案的俯视图。该俯视图与图1A和1B所示的横截面图对应，其中沿该俯视图的线O-O’截取的横截面图即为图1A或1B。为了简洁起见，图2中仅示出触控电极层的周边区域的一个重复单元。该重复单元包括：横向延伸的区域112-1和112-2，其通过金属层108形成的搭桥而被电连接，如前所述；以及纵向延伸的区域112-3和112-4，其在纵向上是电连通的。该重复单元还包括八个虚设(dummy)区域，用于减小图案密度差异而并不在触摸检测中起实际作用(也就是说，在虚设区域中无电流通过)。
如图2所示，现有的触控电极层在与OC层和/或BM层交叠的区域为大片覆盖。然而，有机材料会有在高温环境中的放气问题，该放气问题会导致在后续的烘烤等高温工序过程中的触控电极剥落等问题。图3示出了现有技术中存在的触控电极层剥落问题的SEM(扫描式电子显微镜)相片。 如图3所示，在现有的触摸屏中，触控电极层出现了部分剥落。该问题在工艺未调整好的时候会比较明显。
图4A和4B是示出根据本发明的不同实施例的触控电极层图案的俯视图。为了清楚起见，在图4A和4B中略去了图2中所示的一些部件。在图4A所示的示例中，触控电极层的整个周边区域118均为具有镂空图案的镂空区域，所述周边区域118的一个边缘为触摸屏的边缘，另一边缘为靠近触摸屏中部的OC边缘或BM边缘向触摸屏内部扩展一定距离(例如1-3mm)后的边缘。在触控电极层的横向电连通的区域112-1，镂空图案为在横向上延伸的多个相互隔开的细条，而在纵向电连通的区域112-3和112-4，镂空图案为在纵向上延伸的多个相互隔开的细条。在位于左侧的四个虚设区域，镂空图案为在横向上延伸的多个相互隔开的细条。
应注意的是，在图4A中，深色区域表示未设置触控电极层的区域，白色区域表示设置有触控电极层的区域。也就是说，通过在横向上延伸的多个相互隔开的白色细条、以及在纵向上延伸的多个相互隔开的白色细条来表示触控电极层的所述镂空图案，并且通过在横向上延伸的多条相互隔开的深色线、以及在纵向上延伸的多条相互隔开的深色线来表示下面提到的排气通道。
这样，由于设置了具有多个相互隔开的细条的镂空图案，所以在后续的烘烤等高温工序过程中，各细条之间的间隙可以充当OC层或BM层在高温环境中释放的气体的排出通道，从而防止大片触控电极层覆盖在有机材料上所造成的触控电极剥落问题，在不增大工艺难度的基础上达到提升良率的目的。而且，由于各细条在横向电连通的区域在横向上延伸、且在纵向电连通的区域在纵向上延伸，所以能够保持触控电极层的电连通，从而平衡放气问题与电连通问题。此外，由于仅周边区域包括具有镂空图案的镂空区域，而对除周边区域以外的非周边区域的触控电极层不做修改，这样不会发生潜在的在AA区的图案由片状变成细条状所造成的触控电极图案消隐及电学问题，保证最终产品不会受到影响。
然而，本发明并不限于图4A所示的示例。首先，镂空图案的设置范 围可以变化。作为另一示例，在图1A所示的情况下，触控电极层的周边区域118可以仅在与OC层交叠的区域(即，区域114、120和122，其中区域114是OC边缘所限定的区域)中具有镂空图案；而在图1B所示的情况下，触控电极层的周边区域118可以仅在与OC层和BM层交叠的区域(即，区域116、120和122，其中区域116是BM边缘所限定的区域)中具有镂空图案，其中在与金属层108接触而未与BM层接触的区域，触控电极层可以具有镂空图案，也可以不具有镂空图案。也就是说，触控电极层与有机绝缘层(OC层或BM层)交叠的区域可以仅包括二者直接交叠的区域，也可以既包括二者直接交叠的区域，又包括二者间接交叠的区域(即，二者之间隔着诸如金属层108之类的其他层而交叠的区域)。另外，应注意的是，触控电极层的周边区域并不限于上面描述的示例，而是可以至少覆盖图1A的区域114或图1B的区域116。这样，如果触控电极层的周边区域仅覆盖了图1A的区域114或图1B的区域116、而并未覆盖区域120和122，那么在图1A所示的情况下，触控电极层的周边区域可以仅在与OC层交叠的区域(即，OC边缘所限定的区域114)中具有镂空图案；而在图1B所示的情况下，触控电极层的周边区域可以仅在与OC层和BM层交叠的区域(即，BM边缘所限定的区域116)中具有镂空图案；当然，触摸屏周边也可以仅有BM层，没有OC层，这样的话，触控电极层设置镂空图案的区域，与包括OC层相同，不再赘述。
作为又一示例，除了周边区域包括具有镂空图案的镂空区域外，触控电极层的非周边区域也包括具有镂空图案的镂空区域，该镂空区域可以至少设置在所述非周边区域与有机绝缘层交叠的区域(类似于周边区域中的交叠区域，在此不再赘述)。也就是说，在极端情况下，整个触控电极层都可以具有镂空图案。应注意的是，由于与触控电极层的周边区域相比，触控电极层的非周边区域受有机绝缘层的高温放气问题的影响较小，所以在触控电极层的非周边区域也包括镂空区域的情况下，非周边区域中的镂空图案的密度可以比周边区域中的镂空图案的密度小，从而减轻前面提到的触控电极图案消隐及电学问题。
其次，各细条的延伸方向可以不必严格地沿横向或纵向，而是可以相对于横向或纵向有一定的倾斜。此外，由于虚设区域并不在触摸检测中起实际作用，所以作为另一示例，虚设区域的镂空图案也可以具有纵向延伸的多个相互隔开的细条。作为又一示例，左侧的四个虚设区域中的每一个可以具有横向或纵向延伸的多个相互隔开的细条，或者不具有镂空图案(即，仍为片状)。
图4B所示的示例与图4A相似，其区别在于图4B的镂空图案为网状图案。与图4A相似，在图4B中，深色区域表示未设置触控电极层的区域，白色区域表示设置有触控电极层的区域。也就是说，通过白色的网格线表示触控电极层的所述镂空图案，并且通过由网格线限定出的多个深色的正方形来表示排气通道。
这样，由于设置了网状图案，所以在后续的烘烤等高温工序过程中，网状图案的网格可以充当OC层或BM层在高温环境中释放的气体的排出通道，从而防止大片触控电极层覆盖在有机材料上所造成的触控电极剥落问题，在不增大工艺难度的基础上达到提升良率的目的。而且，由于设置了网状图案，所以能够保持触控电极层的电连通，从而平衡放气问题与电连通问题。此外，由于仅在周边区域具有网状图案，而对非周边区域的触控电极层不做修改，这样不会发生潜在的在AA区的图案由片状变成网状所造成的触控电极图案消隐及电学问题，保证最终产品不会受到影响。
然而，本发明并不限于图4B所示的示例。首先，如上面针对图4A所述，镂空图案的设置范围可以变化，在此不再赘述。其次，网状图案的网格不限于是正方形，而可以是矩形、菱形、圆形、椭圆形、不规则形状等；其中当网格为圆形或椭圆形等形状时，该网状图案可以被视为相当于是密集孔图案。此外，由于虚设区域并不在触摸检测中起实际作用，所以左侧的四个虚设区域中的每一个可以具有网状图案或密集孔图案，或者不具有镂空图案(即，仍为片状)。此外，镂空图案并不限于上述示例，只要镂空图案使位于下方的有机绝缘层(例如OC层或BM层)部分暴露、并且使触控电极层保持电连通即可。
此外，应注意的是，尽管在上文中在OGS电容触摸屏的背景中描述本发明的实施例，但是本领域技术人员能够理解的是，本发明的原理也可以应用于需要在有机绝缘层上设置触控电极层的其他类型的触摸屏。
II.触摸屏的制作方法
图5是根据本发明实施例的触摸屏的制作方法的流程图。在步骤502，在基板的上方形成有机绝缘层。作为一个示例，对于图1B所示的情况，步骤502可以包括以下子步骤：首先，在基板的周边区域形成BM层。该子步骤可以利用任何现有的用于形成BM层的技术来实现。例如，可以通过依次执行涂光刻胶、使用掩膜板进行曝光、用显影液进行显影、用刻蚀液进行刻蚀、和剥离光刻胶，在基板的周边区域形成BM层。随后，可以在BM层之上形成金属层。该子步骤可以利用任何现有的用于形成金属层的技术来实现。例如，可以通过沉积、涂敷或溅射的方式在黑矩阵层之上形成金属层。随后，在BM层或金属层之上形成OC层。该子步骤可以利用与任何现有的用于形成BM层的技术类似的技术来实现，在此不再赘述。
在步骤504，在所述有机绝缘层的上方形成触控电极层，其中形成触控电极层包括：至少在触控电极层的周边区域中形成具有镂空图案的镂空区域，所述镂空图案使有机绝缘层部分暴露，且使触控电极层保持电连通；其中在触控电极层的周边区域中形成镂空区域包括：至少在所述周边区域与有机绝缘层交叠的区域形成所述镂空区域。关于触控电极层的周边区域、镂空图案、交叠区域，上面已经进行了详细描述，在此不再赘述。
作为一个示例，步骤504可以包括以下子步骤：首先，可以在形成了有机绝缘层(例如，OC层或BM层)的基板上形成触控电极层(例如，ITO层)。该子步骤可以利用任何现有的用于形成ITO薄膜的沉积、涂敷或溅射等技术来实现。随后，可以对形成的触控电极层进行图案化以形成具有所述镂空图案的电极图案。例如，可以通过依次执行涂光刻胶、使用掩膜板进行曝光、用显影液进行显影、用刻蚀液进行刻蚀、和剥离光刻胶，来形成具有所述镂空图案的电极图案，其中所使用的掩膜板能够使触控电 极层至少在周边区域中、且至少在所述周边区域与有机绝缘层交叠的区域具有镂空图案。
这样，由于形成了镂空图案，所以能够通过镂空图案的使位于下方的有机绝缘层部分地暴露的部分来实现工艺过程中高温制程造成的有机物气体的释放，从而防止触控电极层在周边区域的脱落所导致的产品性能劣化，在不增大工艺难度的基础上达到提升良率的目的。而且，由于镂空图案使所述触控电极层保持电连通，所以能够平衡放气问题与电连通问题。
应注意的是，尽管在上文中在OGS电容触摸屏的背景中描述根据本发明实施例的触摸屏的制作方法，但是本领域技术人员能够理解的是，本发明的原理也可以应用于需要在有机绝缘层上设置触控电极层的其他类型的触摸屏的制作方法。
III.触摸装置
根据上文中的描述，包括根据本发明实施例的触摸屏的触摸装置能够有效避免触控电极的剥落，在此不再赘述。所述触摸装置的示例包括但不限于手机、平板电脑、个人数字助理、笔记本电脑、台式电脑等。
应注意的是，以上所述仅是本发明的示范性实施方式，而并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。

Claims (14)

  1. 一种触摸屏，包括基板、位于所述基板上方的触控电极层以及位于所述触控电极层下方的有机绝缘层，其中：
    至少所述触控电极层的周边区域包括具有镂空图案的镂空区域，所述镂空区域至少设置在所述周边区域与所述有机绝缘层交叠的区域，所述镂空图案使所述有机绝缘层部分暴露，且使所述触控电极层保持电连通。
  2. 根据权利要求1所述的触摸屏，其中：
    所述镂空图案包括多个相互隔开的细条；
    在所述触控电极层的横向电连通的区域，所述多个细条在横向上延伸；以及
    在所述触控电极层的纵向电连通的区域，所述多个细条在纵向上延伸。
  3. 根据权利要求1或2所述的触摸屏，其中，所述镂空图案包括：网状图案，或者密集孔状图案。
  4. 根据权利要求1至3中任一项所述的触摸屏，其中，所述有机绝缘层包括覆盖层。
  5. 根据权利要求4所述的触摸屏，其中，所述有机绝缘层还包括位于所述基板的周边、且位于所述覆盖层下方的黑矩阵层。
  6. 根据权利要求1至5中任一项所述的触摸屏，其中，仅所述触控电极层的周边区域包括具有镂空图案的镂空区域。
  7. 根据权利要求1至6中任一项所述的触摸屏，其中，所述触摸屏是一体化触摸屏。
  8. 一种触摸屏的制作方法，包括：
    在基板的上方形成有机绝缘层；和
    在所述有机绝缘层的上方形成触控电极层，
    其中，形成触控电极层包括：至少在所述触控电极层的周边区域中形成具有镂空图案的镂空区域，所述镂空图案使所述有机绝缘层部分暴露，且使所述触控电极层保持电连通；以及
    在所述触控电极层的周边区域中形成镂空区域包括：至少在所述周边区域与所述有机绝缘层交叠的区域形成所述镂空区域。
  9. 根据权利要求8所述的方法，其中，形成具有镂空图案的镂空区域包括：
    在所述触控电极层的横向电连通的区域，形成在横向上延伸的多个相互隔开的细条；以及
    在所述触控电极层的纵向电连通的区域，形成在纵向上延伸的多个相互隔开的细条。
  10. 根据权利要求8或9所述的方法，其中，形成具有镂空图案的镂空区域包括：
    形成具有网状图案或者密集孔状图案的镂空区域。
  11. 根据权利要求8至10中任一项所述的方法，其中，形成有机绝缘层包括：在所述基板的周边形成黑矩阵层。
  12. 根据权利要求11所述的方法，其中，形成有机绝缘层还包括：在所述黑矩阵层的上方形成覆盖层。
  13. 根据权利要求8至12中任一项所述的方法，其中，形成触控电极层包括：仅在所述触控电极层的周边区域中形成具有镂空图案的镂空区域。
  14. 一种触摸装置，其中，所述触摸装置包括根据权利要求1至7中任一项所述的触摸屏。
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