WO2017190528A1 - 电极结构及其制作方法、触摸面板和触摸显示装置 - Google Patents

电极结构及其制作方法、触摸面板和触摸显示装置 Download PDF

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Publication number
WO2017190528A1
WO2017190528A1 PCT/CN2017/070733 CN2017070733W WO2017190528A1 WO 2017190528 A1 WO2017190528 A1 WO 2017190528A1 CN 2017070733 W CN2017070733 W CN 2017070733W WO 2017190528 A1 WO2017190528 A1 WO 2017190528A1
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Prior art keywords
electrodes
electrode structure
extending direction
electrode
oblique
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PCT/CN2017/070733
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English (en)
French (fr)
Inventor
张伟
张琨鹏
詹小舟
李慧
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BOE Technology Group Co Ltd
Ordos Yuansheng Optoelectronics Co Ltd
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BOE Technology Group Co Ltd
Ordos Yuansheng Optoelectronics Co Ltd
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Priority to US15/535,430 priority Critical patent/US10678357B2/en
Publication of WO2017190528A1 publication Critical patent/WO2017190528A1/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
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • G06F3/0448—Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality
    • 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

Definitions

  • Embodiments of the present disclosure relate to an electrode structure and a method of fabricating the same, a touch panel, and a touch display device.
  • the touch panel includes a touch electrode structure.
  • Different electrode structures generally have different visual effects, resulting in different product qualities and user experiences.
  • strip type and Zigzag type design may result in poor user experience, such as moiré is relatively obvious, and the shading effect is not ideal.
  • the electrode structure also affects product quality and user experience. Therefore, there is a need for an improved electrode structure.
  • an embodiment of the present disclosure discloses an electrode structure.
  • the electrode structure includes: a plurality of first electrodes that transmit electrical signals; and a plurality of second electrodes that do not transmit electrical signals, wherein the first electrodes and the second electrodes are electrically isolated from each other, and the second electrodes and the first electrodes are alternately arranged
  • Each of the second electrodes includes a plurality of electrically-interrupted electrodes, and among the plurality of electrically-interrupted electrodes, some of the partitioning edges that are not perpendicular to the extending direction of the first electrode can be connected in an oblique direction with respect to the extending direction Connected.
  • the pattern of each of the plurality of electrically isolated electrodes consists of obliquely spaced edges with respect to the direction of extension.
  • some of the oblique partition edges and the extension side The angle formed is 30 degrees, and the other oblique partition edges form an angle of 150 degrees with the extending direction.
  • a pattern of some of the plurality of electrically isolated electrodes is composed of an oblique partitioning edge with respect to the extending direction and a partitioning edge parallel to the extending direction, and patterns of other electrodes are oblique Composed to the partition side.
  • a pattern of some of the plurality of electrically isolated electrodes is an oblique partitioning edge with respect to the extending direction, a partitioning edge parallel to the extending direction, and a perpendicular to the extending direction
  • the partition side is composed, and the patterns of other electrodes are composed of oblique partition edges.
  • some of the oblique partition edges and the partition edges parallel to the extending direction can be connected in an oblique line with respect to the extending direction.
  • some of the oblique partition edges form an angle of 45 degrees with the extending direction, and the other oblique partition edges form an angle of 135 degrees with the extending direction.
  • the plurality of electrically isolated electrodes comprise at least two electrode patterns.
  • the pattern of the plurality of electrically isolated electrodes is arranged in a periodic pattern.
  • the plurality of first electrodes and the plurality of second electrodes are made of the same transparent material.
  • an embodiment of the present disclosure discloses a method of fabricating an electrode structure.
  • the method comprises: designing the electrode structure of any of the above embodiments into a mask pattern; depositing a transparent conductive film; coating a photoresist on the transparent conductive film; using the mask pattern to The photoresist is subjected to exposure development to form a photoresist on the transparent conductive film to form the electrode structure described in any of the above embodiments; and an etching and stripping operation is performed.
  • an embodiment of the present disclosure discloses a touch panel.
  • the touch panel includes the electrode structure described in any of the above embodiments.
  • an embodiment of the present disclosure discloses a touch display device.
  • the touch display device includes the touch panel of the above embodiment.
  • the above disclosed embodiments have at least the following advantages: 1) can effectively improve the graininess problem; 2) has a good shadow reduction effect; 3) improve the user experience.
  • Figure 1 shows a schematic view of an electrode structure
  • FIG. 2 shows a schematic view of an electrode structure in accordance with an embodiment of the present disclosure
  • FIG. 3 shows a schematic diagram of an electrode structure in accordance with another embodiment of the present disclosure
  • FIG. 4 shows a schematic diagram of an electrode structure in accordance with another embodiment of the present disclosure.
  • FIG. 5 illustrates a flow chart of a method of fabricating an electrode structure in accordance with an embodiment of the present disclosure.
  • a solid line indicates an electrical partition, and a region surrounded by a solid line indicates a region capable of conducting electricity.
  • oblique refers to a direction that is neither parallel nor perpendicular to a reference direction (eg, “extension direction” hereinafter).
  • extension direction e.g. "extension direction”
  • an "oblique side” as used herein forms an angle with a reference direction that does not include any other angles of 0 degrees and 90 degrees.
  • oblique line is defined as a line connecting any point other than the starting point from the starting point of the diagonal line to the oblique line with respect to the reference direction (eg, "extension” Direction") It is oblique.
  • the design of the electrode structure often requires consideration of various factors. For example, in the touch screen display electrode design and process manufacturing process, electrode shadowing is a problem that needs to be focused on. The difference in optical transmittance and reflectance of a transparent electrode pattern such as ITO (indium tin oxide) tends to cause an effect of visual electrode shadow, and the structural design of the transparent electrode pattern also has a large influence on the image subtraction effect.
  • a touch display such as an In Cell type
  • an Rx touch electrode is generally disposed on a color film (CF) layer.
  • CF color film
  • the "Diamond” pattern (the pattern of the Dummy electrode shown in Figure 1) has a better shadowing effect and can also meet the touch requirements.
  • the "Diamond” type pattern can enhance the shadowing effect, there is a problem of graininess, which affects product quality and user experience.
  • FIG. 1 shows a partial schematic view of an Rx touch electrode structure used in an In Cell type touch display.
  • the electrode structure includes a plurality of dummy electrodes 101, 103, and a plurality of touch electrodes 102, 104.
  • the touch electrodes 102, 104 and the dummy electrodes 101, 103 are electrically isolated from each other, and the touch electrodes 102, 104 and the dummy electrodes 101, 103 are alternately arranged.
  • the arrangement order of the electrodes is the dummy electrode 101, the touch electrode 102, the dummy electrode 103, and the touch electrode 104.
  • the touch electrodes are arranged to be composed of an octagonal pattern.
  • the dummy electrodes are arranged to be composed of a plurality of hexagonal patterns.
  • the touch electrode structure shown in FIG. 1 has a problem of graininess.
  • the dummy electrode is composed of a plurality of hexagonal patterns, and the dummy electrodes are cut off, for example, the area shown by the frame 108 in FIG. 1 will form a micro hexagon. If macroscopically observed, particles that are composed of many small hexagonal patterns will be felt. Therefore, there is a need for an improved electrode structure.
  • the electrode structure according to an embodiment of the present disclosure may be applied to any other suitable product, and is not limited thereto. In Cell's touch panel.
  • the first electrode and the second electrode may be a transparent conductive film such as an ITO film, an indium zinc oxide (IZO) film, a zinc gallium oxide (ZGO) film, an zinc indium gallium oxide (IZGO) film, A zinc oxide (ZnO) film, an AZO (zinc oxide aluminum) film, or other transparent conductive film that may be applied or developed in the future.
  • the first electrode and the second electrode may be made of the same material.
  • FIG. 2 shows a partial schematic view of an electrode structure 200 in accordance with an embodiment of the present disclosure.
  • the electrode structure can be applied to a touch electrode structure, such as an Rx touch electrode structure applied to an In Cell type touch display.
  • the electrode structure 200 includes a plurality of dummy electrodes 201, 203 (hereinafter, referred to as second electrodes), and a plurality of touch electrodes 202, 204 (hereinafter, referred to as a first electrode) Wherein the first electrode transmits an electrical signal, such as a touch signal; the second electrode does not transmit an electrical signal.
  • the touch electrodes 202, 204 and the dummy electrodes 201, 203 are electrically separated from each other, and the touch electrodes 202, 204 and the dummy electrodes 201, 203 are alternately arranged. For example, as shown in FIG.
  • the arrangement order of the electrodes is the dummy electrode 201, the touch electrode 202, the dummy electrode 203, and the touch electrode 204. Further, the touch electrodes 202, 204 are arranged to be mainly composed of an octagonal pattern. In other embodiments, the touch electrodes 202, 204 can be arranged in any other suitable electrode configuration, and the disclosure is not limited in any way. In addition, as shown in FIG. 2, the touch electrode 202 may include a plurality of electrically isolated conductive regions.
  • Each of the dummy electrodes 201, 203 includes a plurality of electrically-interrupted electrodes, wherein among the plurality of electrically-interrupted electrodes, some of the partitioning edges that are not perpendicular to the extending direction of the first electrode can be connected in an oblique direction with respect to the extending direction line.
  • the dummy electrode 201 includes electrodes 214, 216, 218, etc. that are electrically isolated. In other embodiments, dummy electrode 201 can include more or less types of electrically isolated electrodes.
  • the extending direction of the first electrodes is the direction indicated by the mark 210 in FIG.
  • the dotted line indicated by the mark 212 is an oblique line connecting the partition edges which are not perpendicular to the extending direction 210 with respect to the extending direction.
  • the pattern of each of the plurality of electrically isolated electrodes is comprised of obliquely spaced edges relative to the direction of extension 210, and some of the plurality of electrically isolated electrodes are connectable to each other An oblique connection in the direction of extension 210.
  • the electrically isolated electrodes 214, 216, and 218 are comprised of obliquely spaced edges, and as can be seen from block 208, the dashed lines indicated by indicia 212 are diagonally connected by obliquely spaced edges. .
  • some of the plurality of electrically isolated electrodes form an angle of 30 degrees with the extending direction 210
  • the other oblique dividing edges form an angle of 150 degrees with the extending direction 210.
  • the angle formed by the oblique partition edges 220, 224 and the extension direction 210 is 30 degrees
  • the angle formed by the oblique partition edge 222 and the extension direction 210 is 150 degrees.
  • the angle formed by the oblique partition edge 224 and the extension direction 210 in FIG. 2 may be any suitable angle other than 90 degrees (ie, they are not perpendicular), for example, 60 degrees, 70 degrees. , 80 degrees, etc.
  • the position of the partition 224 can also vary, and is not limited to the position shown in FIG.
  • the angle formed by the oblique partition edge and the extending direction described above is merely an example, and in other embodiments, the angle formed by the oblique partition edge and the extending direction may be any other suitable angle.
  • electrode structure in FIG. 2 is only one exemplary embodiment that satisfies the features described above with respect to electrode structure 200. In other embodiments, there are other electrode structures that satisfy the characteristics of the electrode structure 200, for example, the spacing between the oblique partition edges 224 can be larger or smaller.
  • the electrode structure of the above embodiment can effectively improve the graininess problem.
  • the problem of graininess can be avoided due to the design of the oblique partition.
  • the pattern of the hexagons can be clearly seen, while in block 208 of FIG. 2, due to the introduction of the oblique partition edges 224, there is substantially no hexagonal pattern, so that the direction of reflection is In all directions, the electrode structure of the above embodiment can effectively improve the graininess problem, has a good shadowing effect, and can also meet the touch requirements.
  • FIG. 3 shows a partial schematic view of an electrode structure 300 in accordance with another embodiment of the present disclosure.
  • the electrode structure 300 can be applied to a touch electrode structure, such as an Rx touch electrode structure applied to an In Cell type touch display.
  • the electrode structure 300 includes a plurality of dummy electrodes 301, 303, and a plurality of touch electrodes 302 (note that only one touch electrode 302 is shown in FIG. 3 for reasons of brevity).
  • the touch electrode 302 and the dummy electrodes 301 and 303 are electrically separated from each other, and the touch electrodes 302 and the dummy electrodes 301 and 303 are alternately arranged.
  • the arrangement order of the electrodes is the dummy electrode 301, the touch electrode 302, and the dummy electrode 303.
  • the touch electrodes 302 are arranged to It is mainly composed of an octagonal pattern.
  • the touch electrodes 302 can be arranged in any other suitable electrode configuration, and the disclosure is not limited in this regard. Additionally, as shown in FIG. 3, the touch electrode 302 can include a plurality of electrically isolated conductive regions. Each of the dummy electrodes 301, 303 includes a plurality of electrically-interrupted electrodes, wherein among the plurality of electrically-interrupted electrodes, some of the partitioning edges that are not perpendicular to the extending direction of the first electrode can be connected in an oblique direction with respect to the extending direction line. For example, dummy electrode 301 includes electrically isolated electrodes 314, 316, 318. In other embodiments, dummy electrode 301 can include more or less types of electrically isolated electrodes.
  • the extending direction of the first electrode is the direction indicated by the mark 310 in FIG.
  • the dotted line indicated by the mark 312 is an oblique line connecting the partition edges which are not perpendicular to the extending direction 310 with respect to the extending direction 310, more specifically, some oblique partitioning edges and The partitioning edges parallel to the extending direction 310 can be connected in an oblique line with respect to the extending direction 310.
  • the pattern of some of the plurality of electrically isolated electrodes consists of an oblique partition edge with respect to the extension direction 310, a partition edge parallel to the extension direction 310, and a partition edge perpendicular to the extension direction 310, Other electrodes are comprised of obliquely spaced edges relative to the direction of extension 310.
  • the patterns of the electrically isolated electrodes 314 and 318 are comprised of obliquely spaced edges, and the pattern of electrically isolated electrodes 316 is defined by obliquely spaced edges, partition edges parallel to the extension direction 310, and extension direction 310.
  • the vertical partition side is composed.
  • the dashed line indicated by the indicia 312 is an oblique line connecting the oblique partition edges and the partition edges parallel to the extension direction 310 with respect to the extension direction 310.
  • some of the oblique partition edges form an angle of 45 degrees with the extending direction 310, and the other oblique partition edges form an angle of 135 degrees with the extending direction 310.
  • the angle formed by the oblique partition edges 320, 320' and the extension direction 310 is 45 degrees
  • the angle formed by the oblique partition edges 322, 322' and the extension direction 310 is 135 degrees.
  • the angle formed by the oblique partition edge and the extending direction described above is merely an example, and in other embodiments, the angle formed by the oblique partition edge and the extending direction may be any other suitable angle.
  • electrode structure in FIG. 3 is only one example embodiment that satisfies the features described above with respect to electrode structure 300. In other embodiments, there are other electrode structures that satisfy the characteristics of electrode structure 300.
  • the electrode structure 300 of the above embodiment can effectively improve the graininess problem.
  • the problem of graininess can be avoided due to the design of the oblique partition.
  • the pattern of hexagons can be clearly seen, while in block 308 of FIG. 3, there is substantially no hexagonal shape due to the introduction of obliquely spaced edges and electrically interrupted electrodes of different sizes.
  • the pattern is such that the direction of reflection is in all directions. Therefore, the electrode structure of the above embodiment can effectively improve the graininess problem, has a good image-removing effect, and can also meet the touch requirements.
  • the pattern of the electrically blocked electrodes in the electrode structure 300 has more directions, and the difference of optical reflection caused by the partition can be more effectively dispersed to obtain a better viewing angle. effect.
  • the size of the electrodes that are blocked is different, and the problem of graininess can be avoided.
  • FIG. 4 shows a partial schematic view of an electrode structure 400 in accordance with another embodiment of the present disclosure.
  • the electrode structure 400 can be applied to a touch electrode structure, such as an Rx touch electrode structure applied to an In Cell type touch display.
  • the electrode structure 400 includes a plurality of dummy electrodes 401, 403, and a plurality of touch electrodes 402 (note that only one touch electrode 402 is shown in FIG. 4 for reasons of brevity).
  • the touch electrode 402 and the dummy electrodes 401 and 403 are electrically separated from each other, and the touch electrodes 402 and the dummy electrodes 401 and 4303 are alternately arranged.
  • the arrangement order of the electrodes is the dummy electrode 401, the touch electrode 402, and the dummy electrode 403.
  • the touch electrodes 402 are arranged to be mainly composed of an octagonal pattern.
  • the touch electrodes 402 can be arranged in any other suitable electrode configuration, and the disclosure is not limited in any way.
  • the touch electrode 402 may include a plurality of electrically isolated conductive regions.
  • Each of the dummy electrodes 401, 403 includes a plurality of electrically-interrupted electrodes, wherein among the plurality of electrically-interrupted electrodes, some of the partitioning edges that are not perpendicular to the extending direction of the first electrode can be connected in an oblique direction with respect to the extending direction line.
  • dummy electrode 401 includes electrically isolated electrodes 414, 416, 418.
  • dummy electrode 401 includes an electrical barrier electrode that can include more or less types.
  • the extending direction of the first electrode is the direction indicated by the mark 410 in FIG.
  • the dotted line indicated by the mark 412 is an oblique line connecting the partition edges not perpendicular to the extending direction 410 to the extending direction 410, and more specifically, some oblique dividing edges and extensions.
  • the partition edges parallel to the direction 410 can be connected in an oblique line with respect to the direction of extension 410.
  • the pattern of some of the plurality of electrically-interrupted electrodes is composed of an oblique partitioning edge with respect to the extending direction 410 and a partitioning edge parallel to the extending direction 410, and the patterns of the other electrodes are relative to the extending direction.
  • the oblique partition side of 410 is composed.
  • the patterns of the electrically isolated electrodes 414 and 418 are comprised of obliquely spaced edges
  • the pattern of electrically isolated electrodes 416 is comprised of obliquely spaced edges and partition edges that are parallel to the direction of extension 410.
  • the dashed line indicated by the indicia 412 is an oblique line connecting the oblique partitioning edges and the partitioning edges parallel to the extending direction 410 with respect to the extending direction 410.
  • some of the oblique partition edges form an angle of 45 degrees with the extending direction 410, and the other oblique partition edges form an angle of 135 degrees with the extending direction 410.
  • the angle formed by the oblique partition edge 420 and the extension direction 410 is 45 degrees
  • the angle formed by the oblique partition edge 422 and the extension direction 410 is 135 degrees.
  • the angle formed by the oblique partition edge and the extending direction described above is merely an example, and in other embodiments, the angle formed by the oblique partition edge and the extending direction may be any other suitable angle.
  • electrode structure in FIG. 4 is only one example embodiment that satisfies the features described above with respect to electrode structure 400. In other embodiments, there are other electrode structures that satisfy the characteristics of electrode structure 400.
  • the electrode structure 400 of the above embodiment can effectively improve the graininess problem.
  • the problem of graininess can be avoided due to the design of the oblique partition.
  • the pattern of hexagons can be clearly seen, while in block 408 of FIG. 4, there is substantially no hexagonal shape due to the introduction of obliquely spaced edges and electrically interrupted electrodes of different sizes.
  • the pattern is such that the direction of reflection is in all directions. Therefore, the electrode structure of the above embodiment can effectively improve the graininess problem, has a good image-removing effect, and can also meet the touch requirements.
  • the pattern of the electrically-off electrodes in the electrode structure 400 has more directions, and the difference of optical reflection caused by the partition can be more effectively dispersed to obtain a better viewing angle. effect.
  • the size of the electrodes that are blocked is different, and the problem of graininess can be avoided.
  • the plurality of electrically isolated electrodes comprise at least two electrode patterns.
  • the electrically isolated electrodes in the electrode structures 200, 300, 400 include at least two electrode patterns.
  • the patterns of the plurality of electrically isolated electrodes are arranged in a periodic pattern.
  • the patterns of the electrically isolated electrodes in the electrode structures 200, 300, 400 are arranged in a periodic pattern.
  • the patterns 414, 416, and 418 of the electrically isolated electrodes of Figure 4 are periodically arranged in the manner illustrated.
  • the plurality of first electrodes and the plurality of second electrodes are made of the same transparent material (eg, ITO).
  • electrode structures shown in the figures are merely exemplary. In other embodiments, the size, number, and type of patterns of electrodes in the electrode structure can vary.
  • FIG. 5 illustrates a method of fabricating an electrode structure in accordance with an embodiment of the present disclosure.
  • the method includes the step 510 of designing the electrode structure (e.g., electrode structure 200, 300 or 400) of the above embodiment as a mask pattern.
  • Step 520 for example, depositing a transparent conductive film (e.g., ITO film) on a color filter substrate (CF), wherein any suitable deposition technique existing or future developed may be used for deposition, and the present disclosure is not limited thereto.
  • Step 530 coating a photoresist on the transparent conductive film, wherein the photoresist may be any suitable type of photoresist applicable in the fabrication of the display, and the disclosure is not limited thereto.
  • step 540 the photoresist is exposed and developed using a mask pattern to form the photoresist on the transparent conductive film to form the electrode structure of the above embodiment (for example, the electrode structure 200, 300 or 400).
  • step 550 an etching and stripping operation is performed so that the electrode structure of the above embodiment, such as the electrode structure 200, 300 or 400, can be formed.
  • the various operations in the above steps 510-550 may use any applicable technology that is existing and future developed, and the present disclosure is not limited thereto.
  • the electrode structure fabricated by the method 500, such as the electrode structure 200, 300 or 400 described above, can also improve the graininess problem, has a good image-removing effect, and can also meet the touch requirements.
  • the present disclosure also provides a touch panel including an electrode structure, such as electrode structure 200, 300 or 400, in accordance with an embodiment of the present disclosure.
  • an electrode structure such as electrode structure 200, 300 or 400
  • the electrode structure 200, 300 or 400 can function as an Rx electrode.
  • the touch panel may be any suitable touch panel that may use an electrode structure in accordance with an embodiment of the present disclosure.
  • the present disclosure also provides a touch display device including a touch panel according to an embodiment of the present disclosure.

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Abstract

一种电极结构 (200、300、400)，其包括：多个第一电极 (202、204、302、402)，其传送电信号；多个第二电极 (201、203、301、303、401、403)，其不传送电信号，其中，第一电极 (202、204、302、402) 和第二电极 (201、203、301、303、401、403) 相互电隔断，第二电极 (201、203、301、303、401、403) 和第一电极 (202、204、302、402) 交替布置，每个第二电极 (201、203、301、303、401、403) 包括多个电隔断的电极 (214、216、218、314、316、318、414、416、418)，在所述多个电隔断的电极 (214、216、218、314、316、318、414、416、418) 中，与第一电极 (202、204、302、402) 的延伸方向 (210、310、410) 不垂直的一些隔断边能够连接成相对于所述延伸方向 (210、310、410) 的斜向连线 (212、312、412)。一种电极结构 (200、300、400) 制作方法、触摸面板和触摸显示装置。电极结构 (200、300、400) 可以有效改善颗粒感问题，具有较好的消影效果，提高用户体验。

Description

电极结构及其制作方法、触摸面板和触摸显示装置
本申请要求申请日为2016年5月5的中国专利申请第201610291071.0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
本公开的实施例涉及电极结构及其制作方法、触摸面板和触摸显示装置。
背景技术
目前，产品中往往存在许多电极结构。例如，触摸面板包括触摸电极结构。不同的电极结构一般会具有产生不同的视觉效果，从而导致不同的产品质量和用户体验。例如，在In Cell类型的触摸面板中，条带(Strip)型和锯齿(Zigzag)型两种图案设计，会导致用户体验较差，例如摩尔纹比较明显，消影效果不理想等。在其它类型的产品中，电极结构同样会影响产品质量和用户体验。因此，需要改进的电极结构。
发明内容
根据本公开的第一方面，本公开的实施例公开了一种电极结构。该电极结构包括：多个第一电极，其传送电信号；多个第二电极，其不传送电信号，其中，第一电极和第二电极相互电隔断，第二电极和第一电极交替布置，每个第二电极包括多个电隔断的电极，在所述多个电隔断的电极中，与第一电极的延伸方向不垂直的一些隔断边能够连接成相对于所述延伸方向的斜向连线。
根据一个实施例，所述多个电隔断的电极中的每个电极的图案由相对于所述延伸方向的斜向隔断边组成。
根据一个实施例，所述斜向隔断边中的一些斜向隔断边与所述延伸方 向形成的角度为30度，其它斜向隔断边与所述延伸方向形成的角度为150度。
根据一个实施例，所述多个电隔断的电极中的一些电极的图案由相对于所述延伸方向的斜向隔断边和与所述延伸方向平行的隔断边组成，另一些电极的图案由斜向隔断边组成。
根据一个实施例，所述多个电隔断的电极中的一些电极的图案由相对于所述延伸方向的斜向隔断边、与所述延伸方向平行的隔断边、和与所述延伸方向垂直的隔断边组成，另一些电极的图案由斜向隔断边组成。
根据一个实施例，在所述多个电隔断的电极中，一些斜向隔断边和与所述延伸方向平行的隔断边能够连接成相对于所述延伸方向的斜向连线。
根据一个实施例，所述斜向隔断边中的一些斜向隔断边与所述延伸方向形成的角度为45度，其它斜向隔断边与所述延伸方向形成的角度为135度。
根据一个实施例，所述多个电隔断的电极包括至少两种电极图案。
根据一个实施例，所述多个电隔断的电极的图案被布置成周期性的图案。
根据一个实施例，所述多个第一电极和所述多个第二电极由相同的透明材料制成。
根据本公开的第二方面，本公开的实施例公开了一种电极结构制作方法。该方法包括：将以上实施例任一所述的电极结构设计成掩膜版图形；沉积透明导电薄膜；在所述透明导电薄膜上涂覆光刻胶；使用所述掩膜版图形对所述光刻胶进行曝光显影以使所述透明导电薄膜上的光刻胶形成以上实施例任一所述的电极结构；以及执行刻蚀和剥离操作。
根据本公开的第三方面，本公开的实施例公开了一种触摸面板。该触摸面板包括以上实施例任一所述的电极结构。
根据本公开的第四方面，本公开的实施例公开了一种触摸显示装置。该触摸显示装置包括上述实施例的触摸面板。
上述公开的实施例至少具有以下优点：1)可以有效改善颗粒感问题； 2)具有较好的消影效果；3)提高用户体验。
附图说明
现在参照附图，附图仅是示例性的并且未必按比例绘制，其中：
图1示出了一种电极结构的示意图；
图2示出了根据本公开的实施例的电极结构的示意图；
图3示出了根据本公开的另一个实施例的电极结构的示意图；
图4示出了根据本公开的另一个实施例的电极结构的示意图；以及
图5示出了根据本公开的实施例的电极结构制作方法的流程图。
在附图中，为便于理解，已经使用相同或相似的标记指代基本上具有相同或类似结构和/或相同或类似功能的元件。
具体实施方式
下面参照附图描述本公开的实施例。在下面的描述中，阐述了许多具体细节以便使所属技术领域的技术人员更全面地了解和实现本公开。但是，对所属技术领域的技术人员明显的是，本公开的实现可不具有这些具体细节中的一些具体细节。此外，应当理解的是，本公开并不局限于所介绍的特定实施例。相反，可以考虑用下面所述的特征和要素的任意组合来实施本公开，而无论它们是否涉及不同的实施例。因此，下面的方面、特征、实施例和优点仅作说明之用，而不应看作是权利要求的要素或限定，除非在权利要求中明确提出。
需要注意的是，在附图所示出的电极结构中，实线表示为电隔断，由实线包围的区域表示能够导电的区域。
如本文中使用的，词语“斜向”是指与参考方向(例如，下文中的“延伸方向”)既不平行也不垂直的方向。例如，如本文中使用的“斜向边”与参考方向形成的角度为不包括0度和90度的任何其它角度。此外，如本文中使用的，“斜向连线”被限定为从斜向连线的起点到斜向连线中除了起点之外的任何一点所连接的直线相对于参考方向(例如，“延伸方向”) 是斜向的。
电极结构的设计往往需要考虑多方面的因素。例如，在触摸显示屏电极设计与工艺制作过程中，电极消影是需要重点关注的问题。诸如ITO(氧化铟锡)的透明电极图形的光学透过率及反射率的差异容易引起视觉电极影的效果，同时透明电极图形的结构设计对消影效果也有较大影响。在诸如In Cell类型触摸显示器中，一般将Rx触摸电极设置在彩膜(CF)层上。如上所述，采用“Strip”型和“Zigzag”型的图案设计会导致摩尔纹比较明显，消影效果不理想。而“Diamond(六角形)”型图案(如图1所示的Dummy电极的图案)有更好的消影效果，也能满足触控要求。然而，虽然“Diamond”型图案能够提升消影效果，但是存在颗粒感问题，从而影响产品质量和用户体验。
图1示出了一种在In Cell类型触摸显示器中使用的Rx触摸电极结构的局部示意图。如图1所示，该电极结构包括多个虚设(Dummy)电极101、103，和多个触摸电极102、104。触摸电极102、104与虚设(Dummy)电极101、103相互电隔断，触摸电极102、104与虚设(Dummy)电极101、103交替布置。例如，如图1所示，电极的布置顺序为虚设电极101、触摸电极102、虚设电极103和触摸电极104。此外，触摸电极被布置成由八边形的图案组成。而虚设电极被布置为由多个六边形的图案组成。
然而，图1所示出的触摸电极结构存在颗粒感的问题。例如，在白色画面或者高亮度画面下，由于虚设电极为多个六边形图案组成，并且虚设电极存在隔断，因此例如图1中的框108示出的区域将形成微观六边形。如果宏观肉眼观察，则会感觉到由很多细小的六边图形组成的颗粒。因此，需要一种改进的电极结构。
需要注意的是，尽管以下主要在In Cell的触摸面板的上下文中来论述本公开的实施例，但是根据本公开的实施例的电极结构也可以应用于任何其它合适的产品中，而不仅局限于In Cell的触摸面板。
如本文中使用的，第一电极和第二电极可以是透明导电薄膜，诸如ITO膜、氧化锌铟(IZO)膜、氧化锌镓(ZGO)膜、氧化锌铟镓(IZGO)膜、 氧化锌(ZnO)膜、AZO(氧化锌铝)膜，或其它可以适用的或将来开发的透明导电薄膜。此外，第一电极和第二电极可以由相同的材料制成。
图2示出了根据本公开的实施例的电极结构200的局部示意图。在一个实施例中，该电极结构可以应用于触摸电极结构，例如应用于In Cell类型触摸显示器的Rx触摸电极结构。
如图2所示，该电极结构200包括多个虚设电极201、203(下文中，其被称为第二电极)，和多个触摸电极202、204(下文中，其被称为第一电极)，其中第一电极，传送电信号，例如触摸信号；第二电极不传送电信号。触摸电极202、204与虚设电极201、203相互电隔断，触摸电极202、204与虚设电极201、203交替布置。例如，如图2所示，电极的布置顺序为虚设电极201、触摸电极202、虚设电极203和触摸电极204。此外，触摸电极202、204被布置成主要由八边形的图案组成。在其它实施例中，触摸电极202、204可以被布置成任何其它合适的电极结构，本公开对此没有任何限制。另外，如图2所示，触摸电极202可以包括多个电隔断的导电区域。每个虚设电极201、203包括多个电隔断的电极，其中在多个电隔断的电极中，与第一电极的延伸方向不垂直的一些隔断边能够连接成相对于该延伸方向的斜向连线。例如，虚设电极201包括电隔断的电极214、216、218等。在其他实施例中，虚设电极201可以包括更多或更少种类的电隔断的电极。
在图2中，第一电极(触摸电极202、204)的延伸方向为图2中标记210所示的方向。从图2可以看出，标记212所指示的虚线为与延伸方向210不垂直的一些隔断边所连接成的相对于延伸方向的斜向连线。作为对比，在图1中的电极结构中，不存在这样的斜向连线。
在该实施例中，多个电隔断的电极中的每个电极的图案由相对于延伸方向210的斜向隔断边组成，以及多个电隔断的电极中的一些斜向隔断边能够连接成相对于延伸方向210的斜向连线。如图2所示出，电隔断的电极214、216和218由斜向隔断边组成，并且从框208可以看出，标记212所指示的虚线为一些斜向隔断边连接成的斜向连线。
在该实施例中，多个电隔断的电极中的一些斜向隔断边与延伸方向210形成的角度为30度，其它斜向隔断边与延伸方向210形成的角度为150度。例如，在图2中，斜向隔断边220、224与延伸方向210形成的角度为30度，斜向隔断边222与延伸方向210形成的角度为150度。在其它实施例中，图2中的斜向隔断边224与延伸方向210形成的角度可以是除了90度之外的任何其它合适的角度(即，它们不垂直)，例如，60度、70度、80度等。此外，隔断边224的位置也可以变化，而不仅限于图2中所示出的位置。此外，需要注意的是，以上所描述的斜向隔断边与延伸方向形成的角度仅是示例，在其它实施例中，斜向隔断边与延伸方向形成的角度也可以是任何其它合适的角度。
需要注意的是，图2中的电极结构仅是满足以上相对于电极结构200描述的特点的一种示例实施例。在其他实施例中，还存在满足电极结构200的特点的其他电极结构，例如，斜向隔断边224之间的间隔可以更大或更小。
上述实施例的电极结构可以有效改善颗粒感问题。例如，在白色图画或者高亮度画面的情况下，由于斜向隔断边设计，可以避免产生颗粒感问题。例如，在图1的框108中，可以明显看到六边形的图案，而在图2的框208中，由于斜向隔断边224的引入，明显没有六边形的图案，使得反射方向为各方向的，因此上述实施例的电极结构可以有效改善颗粒感问题，具有较好的消影效果，也能满足触控要求。
图3示出了根据本公开的另一个实施例的电极结构300的局部示意图。在一个实施例中，电极结构300可以应用于触摸电极结构，例如应用于In Cell类型触摸显示器的Rx触摸电极结构。
如图3所示，该电极结构300包括多个虚设电极301、303，和多个触摸电极302(注意的是，出于简洁的原因，图3中仅示出了一个触摸电极302)。触摸电极302与虚设电极301、303相互电隔断，触摸电极302与虚设电极301、303交替布置。例如，如图3所示，电极的布置顺序为虚设电极301、触摸电极302、虚设电极303。此外，触摸电极302被布置成 主要由八边形的图案组成。在其它实施例中，触摸电极302可以被布置成任何其它合适的电极结构，本公开对此没有任何限制。另外，如图3所示，触摸电极302可以包括多个电隔断的导电区域。每个虚设电极301、303包括多个电隔断的电极，其中在多个电隔断的电极中，与第一电极的延伸方向不垂直的一些隔断边能够连接成相对于该延伸方向的斜向连线。例如，虚设电极301包括电隔断的电极314、316、318。在其他实施例中，虚设电极301可以包括更多或更少种类的电隔断电极。
在图3中，第一电极(触摸电极302)的延伸方向为图3中标记310所示的方向。从图3可以看出，标记312所指示的虚线为与延伸方向310不垂直的一些隔断边所连接成的相对于延伸方向310的斜向连线，更具体地，一些斜向隔断边和与延伸方向310平行的隔断边能够连接成相对于延伸方向310的斜向连线。作为对比，在图1中的电极结构中，不存在这样的斜向连线。
在该实施例中，多个电隔断的电极中的一些电极的图案由相对于延伸方向310的斜向隔断边、与延伸方向310平行的隔断边、和与延伸方向310垂直的隔断边组成，另一些电极由相对于延伸方向310的斜向隔断边组成。如图3所示出，电隔断的电极314和318的图案由斜向隔断边组成，电隔断的电极316的图案由斜向隔断边、与延伸方向310平行的隔断边、和与延伸方向310垂直的隔断边组成。此外，从框308可以看出，标记312所指示的虚线为一些斜向隔断边和与延伸方向310平行的隔断边连接成的相对于延伸方向310的斜向连线。
在该实施例中，斜向隔断边中的一些斜向隔断边与延伸方向310形成的角度为45度，其它斜向隔断边与延伸方向310形成的角度为135度。例如，在图3中，斜向隔断边320、320’与延伸方向310形成的角度为45度，斜向隔断边322、322’与延伸方向310形成的角度为135度。此外，需要注意的是，以上所描述的斜向隔断边与延伸方向形成的角度仅是示例，在其它实施例中，斜向隔断边与延伸方向形成的角度也可以是任何其它合适的角度。
需要注意的是，图3中的电极结构仅是满足以上相对于电极结构300描述的特点的一种示例实施例。在其他实施例中，还存在满足电极结构300的特点的其他电极结构。
上述实施例的电极结构300可以有效改善颗粒感问题。例如，在白色图画或者高亮度画面的情况下，由于斜向隔断边设计，可以避免产生颗粒感问题。例如，在图1的框108中，可以明显看到六边形的图案，而在图3的框308中，由于斜向隔断边的引入以及不同大小的电隔断电极，明显没有六边形的图案，使得反射方向为各方向的，因此上述实施例的电极结构可以有效改善颗粒感问题，具有较好的消影效果，也能满足触控要求。此外，与图2中的电极结构200相比，电极结构300中的电隔断的电极的图案具有更多的方向，能够更有效地将隔断引起的光学反光的差异分散化，得到更好的视角效果。此外，隔断的电极的图案大小不同，可以避免颗粒感问题。
图4示出了根据本公开的另一个实施例的电极结构400的局部示意图。在一个实施例中，电极结构400可以应用于触摸电极结构，例如应用于In Cell类型触摸显示器的Rx触摸电极结构。
如图4所示，该电极结构400包括多个虚设电极401、403，和多个触摸电极402(注意的是，出于简洁的原因，图4中仅示出了一个触摸电极402)。触摸电极402与虚设电极401、403相互电隔断，触摸电极402与虚设电极401、4303交替布置。例如，如图4所示，电极的布置顺序为虚设电极401、触摸电极402、虚设电极403。此外，触摸电极402被布置成主要由八边形的图案组成。在其它实施例中，触摸电极402可以被布置成任何其它合适的电极结构，本公开对此没有任何限制。另外，如图4所示，触摸电极402可以包括多个电隔断的导电区域。每个虚设电极401、403包括多个电隔断的电极，其中在多个电隔断的电极中，与第一电极的延伸方向不垂直的一些隔断边能够连接成相对于该延伸方向的斜向连线。例如，虚设电极401包括电隔断的电极414、416、418。在其他实施例中，虚设电极401包括可以包括更多或更少种类的电隔断电极。
在图4中，第一电极(触摸电极402)的延伸方向为图4中标记410所示的方向。从图4可以看出，标记412所指示的虚线为与延伸方向410不垂直的一些隔断边所连接成相对于延伸方向410的斜向连线，更具体地，一些斜向隔断边和与延伸方向410平行的隔断边能够连接成相对于延伸方向410的斜向连线。作为对比，在图1中的电极结构中，不存在这样的斜向连线。
在该实施例中，多个电隔断的电极中的一些电极的图案由相对于延伸方向410的斜向隔断边和与延伸方向410平行的隔断边组成，另一些电极的图案由相对于延伸方向410的斜向隔断边组成。如图4所示出，电隔断的电极414和418的图案由斜向隔断边组成，电隔断的电极416的图案由斜向隔断边和与延伸方向410平行的隔断边组成。此外，从框408可以看出，标记412所指示的虚线为一些斜向隔断边和与延伸方向410平行的隔断边连接成的相对于延伸方向410的斜向连线。
在该实施例中，斜向隔断边中的一些斜向隔断边与延伸方向410形成的角度为45度，其它斜向隔断边与延伸方向410形成的角度为135度。例如，在图4中，斜向隔断边420与延伸方向410形成的角度为45度，斜向隔断边422与延伸方向410形成的角度为135度。此外，需要注意的是，以上所描述的斜向隔断边与延伸方向形成的角度仅是示例，在其它实施例中，斜向隔断边与延伸方向形成的角度也可以是任何其它合适的角度。
需要注意的是，图4中的电极结构仅是满足以上相对于电极结构400描述的特点的一种示例实施例。在其他实施例中，还存在满足电极结构400的特点的其他电极结构。
上述实施例的电极结构400可以有效改善颗粒感问题。例如，在白色图画或者高亮度画面的情况下，由于斜向隔断边设计，可以避免产生颗粒感问题。例如，在图1的框108中，可以明显看到六边形的图案，而在图4的框408中，由于斜向隔断边的引入以及不同大小的电隔断电极，明显没有六边形的图案，使得反射方向为各方向的，因此上述实施例的电极结构可以有效改善颗粒感问题，具有较好的消影效果，也能满足触控要求。 此外，与图2中的电极结构200相比，电极结构400中的电隔断的电极的图案具有更多的方向，能够更有效地将隔断引起的光学反光的差异分散化，得到更好的视角效果。此外，隔断的电极的图案大小不同，可以避免颗粒感问题。
根据各种实施例，多个电隔断的电极包括至少两种电极图案。例如，电极结构200、300、400中的电隔断的电极包括至少两种电极图案。
根据各种实施例，多个电隔断的电极的图案被布置成周期性的图案。例如，电极结构200、300、400中的电隔断的电极的图案被布置成周期性的图案。例如，图4中的电隔断的电极的图案414、416和418按照图示的方式周期性地布置。
根据各种实施例，多个第一电极和多个第二电极由相同的透明材料(例如，ITO)制成。
需要注意的是，图中所示出的电极结构仅是示例性的。在其他实施例中，电极结构中的电极的图案的大小、数量、种类可以改变。
图5示出了根据本公开的实施例的电极结构制作方法。该方法包括：步骤510，将上述实施例的电极结构(例如，电极结构200、300或400)设计成掩膜版图形。步骤520，例如，在彩膜基板(CF)上，沉积透明导电薄膜(例如ITO薄膜)，其中沉积可以使用现有的或将来开发的任何合适的沉积技术，本公开对此没有任何限制。步骤530，在透明导电薄膜上涂覆光刻胶，其中光刻胶可以是在显示器的制作中可以适用的任何合适类型的光刻胶，本公开对此没有任何限制。步骤540，使用掩膜版图形对光刻胶进行曝光显影以使透明导电薄膜上的光刻胶形成上述实施例的电极结构(例如，电极结构200、300或400)。步骤550，执行刻蚀和剥离操作，从而可以形成上述实施例的电极结构，例如电极结构200、300或400。上述步骤510‐550中的各种操作可以使用现有的和将来开发的任何可以适用的技术，本公开对此没有任何限制。通过方法500制作的电极结构，例如上述电极结构200、300或400，同样可以改善颗粒感的问题，具有较好的消影效果，也能满足触控要求。
在一个实施例中，本公开还提供了一种触摸面板，其包括根据本公开的实施例的电极结构，例如电极结构200、300或400。例如，在IN Cell类型的触摸面板，电极结构200、300或400可以作为Rx电极。触摸面板可以是可以使用根据本公开的实施例的电极结构的任何合适的触摸面板。
在一个实施例中，本公开还提供了一种触摸显示装置，其包括根据本公开的实施例的触摸面板。
本文所使用的词语仅是出于描述特定实施例的目的，并且不是意在限制实施例。如本文所使用的，单数形式“一个”、“一种”和“所述”意味着也包含复数形式，除非上下文中清楚地另外指明。还应当理解的是，当在本文使用时，词语“包括”、“具有”、“包含”和/或“含有”指存在所阐明的特征、数字、步骤、操作、元素和/或组件，但是不排除存在或附加一个或多个其它特征、数字、步骤、操作、元素、组件和/或其组合。
还应当注意的是，在一些可替代实现方式中，所阐明的功能/动作可以不按附图中所阐明的顺序发生。如果需要，可以以不同的顺序和/或彼此并发地执行本公开中所描述的不同功能。此外，如果需要，上述功能中的一个或多个功能可以是非必须的或可以被组合。
尽管以上参照附图描述了本公开的实施例，但是本领域的技术人员可以理解以上描述仅为示例，而不是对本公开的限制。可以对本公开的实施例进行各种修改和变型，而仍落入本公开的精神和范围之内，本公开的范围仅由所附权利要求书确定。

Claims (13)

  1. 一种电极结构，包括：
    多个第一电极，其传送电信号；
    多个第二电极，其不传送电信号，
    其中，第一电极和第二电极相互电隔断，第二电极和第一电极交替布置，每个第二电极包括多个电隔断的电极，在所述多个电隔断的电极中，与第一电极的延伸方向不垂直的一些隔断边能够连接成相对于所述延伸方向的斜向连线。
  2. 权利要求1所述的电极结构，其中，所述多个电隔断的电极中的每个电极的图案由相对于所述延伸方向的斜向隔断边组成。
  3. 权利要求2所述的电极结构，其中，所述斜向隔断边中的一些斜向隔断边与所述延伸方向形成的角度为30度，其它斜向隔断边与所述延伸方向形成的角度为150度。
  4. 权利要求1所述的电极结构，其中，所述多个电隔断的电极中的一些电极的图案由相对于所述延伸方向的斜向隔断边和与所述延伸方向平行的隔断边组成，另一些电极的图案由斜向隔断边组成。
  5. 权利要求1所述的电极结构，其中，所述多个电隔断的电极中的一些电极的图案由相对于所述延伸方向的斜向隔断边、与所述延伸方向平行的隔断边、和与所述延伸方向垂直的隔断边组成，另一些电极的图案由相对于所述延伸方向的斜向隔断边组成。
  6. 权利要求4或5所述的电极结构，其中，在所述多个电隔断的电极中，一些斜向隔断边和与所述延伸方向平行的隔断边能够连接成相对于所述延伸方向的斜向连线。
  7. 权利要求4或5所述的电极结构，其中，所述斜向隔断边中的一些斜向隔断边与所述延伸方向形成的角度为45度，其它斜向隔断边与所述延伸方向形成的角度为135度。
  8. 权利要求1‐7任一所述的电极结构，其中，所述多个电隔断的电极 包括至少两种电极图案。
  9. 权利要求1‐8任一所述的电极结构，其中，所述多个电隔断的电极的图案被布置成周期性的图案。
  10. 权利要求1‐9任一所述的电极结构，其中，所述多个第一电极和所述多个第二电极由相同的透明材料制成。
  11. 一种电极结构制作方法，包括：
    将权利要求1‐10任一所述的电极结构设计成掩膜版图形；
    沉积透明导电薄膜；
    在所述透明导电薄膜上涂覆光刻胶；
    使用所述掩膜版图形对所述光刻胶进行曝光显影以使所述透明导电薄膜上的光刻胶形成所述权利要求1‐10任一所述的电极结构；以及
    执行刻蚀和剥离操作。
  12. 一种触摸面板，包括权利要求1‐10任一所述的电极结构。
  13. 一种触摸显示装置，包括权利要求12的触摸面板。
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