WO2023173353A1 - 触控基板、显示面板及显示装置 - Google Patents

触控基板、显示面板及显示装置 Download PDF

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Publication number
WO2023173353A1
WO2023173353A1 PCT/CN2022/081397 CN2022081397W WO2023173353A1 WO 2023173353 A1 WO2023173353 A1 WO 2023173353A1 CN 2022081397 W CN2022081397 W CN 2022081397W WO 2023173353 A1 WO2023173353 A1 WO 2023173353A1
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WIPO (PCT)
Prior art keywords
electrode
touch
substrate
floating
insulation layer
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PCT/CN2022/081397
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English (en)
French (fr)
Inventor
李园园
薄赜文
郑美珠
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京东方科技集团股份有限公司
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Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to PCT/CN2022/081397 priority Critical patent/WO2023173353A1/zh
Priority to CN202280000477.2A priority patent/CN117083582A/zh
Publication of WO2023173353A1 publication Critical patent/WO2023173353A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26

Definitions

  • the present disclosure relates to the field of display technology, and in particular, to a touch substrate, a display panel and a display device.
  • Touch technologies mainly include resistive, capacitive and infrared optical.
  • capacitive touch technology has the characteristics of sensitive response and is widely used in smartphones and tablets.
  • a touch substrate using capacitive touch technology is provided with touch electrodes, touch leads and a touch chip.
  • the touch control lead is electrically connected between the touch control electrode and the touch control chip to transmit signals.
  • the signal-to-noise ratio of existing touch substrates is poor.
  • the purpose of this disclosure is to provide a touch substrate, a display panel and a display device that can improve the signal-to-noise ratio.
  • a touch substrate including:
  • Touch electrodes are provided on one side of the touch insulation layer
  • a first floating electrode is provided on a side of the touch insulation layer facing away from the touch electrode.
  • the first floating electrode and the touch electrode at least partially overlap in the thickness direction of the touch insulation layer. .
  • the first floating electrode includes a plurality of electrode regions arranged insulatingly.
  • touch electrodes include first electrode strips and second electrode strips arranged crosswise
  • touch substrate further includes:
  • a bridge electrode is provided on the side of the touch insulation layer facing away from the touch electrode.
  • One of the first electrode strip and the second electrode strip is connected to the bridge electrode, and the bridge electrode is connected to the bridge electrode.
  • the first floating electrodes are arranged in the same layer.
  • the first floating electrode has a grid structure, the first floating electrode is provided with a first mesh, and the bridge electrode is located in the first mesh.
  • the first floating electrode has a grid structure.
  • the touch electrodes include first electrode strips and second electrode strips arranged crosswise, the first electrode strips extend along the first direction, the second electrode strips extend along the second direction, and the The first direction is different from the second direction;
  • a plurality of first protrusions distributed at intervals are provided in the width direction of the first electrode strip, and a first depression is formed between two adjacent first protrusions; the width direction of the second electrode strip is There is an extension part extending along the first direction, a second protrusion is provided in the width direction of the extension part, and the second protrusion extends into the first recessed part.
  • one side of the second electrode strip in the width direction is provided with a plurality of extension parts distributed at intervals; for two adjacent extension parts, any extension part is close to another extension part.
  • the second protrusion is provided on one side of the extension; the touch substrate also includes:
  • a bridge electrode is provided on a side of the touch insulation layer facing away from the touch electrode; the second protrusions of two adjacent extension parts are connected through the bridge electrode.
  • the second electrode strip includes a plurality of electrode segments arranged at intervals;
  • the bridging electrode includes a plurality of bridging regions arranged at intervals, the second protrusions of two adjacent extending portions are connected through one bridging region, and two adjacent electrode segments are connected through another bridging region.
  • the touch electrode has a grid structure, and the width of the first electrode strip, the width of the second electrode strip, the width of the first protrusion, the width of the extension part or the third The width of the two bumps is equal to 1-10 grid widths.
  • the touch substrate further includes a buffer layer and a touch protective layer, the buffer layer is located on a side of the touch insulating layer facing away from the touch electrode, and the first floating electrode is located on the Between the buffer layer and the touch insulation layer; the touch protection layer covers the touch insulation layer and the touch electrode.
  • the touch electrode has a grid structure
  • the touch electrode is provided with a second mesh
  • the touch substrate further includes:
  • a second floating electrode is provided on a side of the touch insulation layer facing away from the first floating electrode and located in the second mesh.
  • the touch electrode has a mesh structure
  • the first electrode strip and/or the first protrusion are provided with a second mesh
  • the touch substrate further includes:
  • a second floating electrode is provided on a side of the touch insulation layer facing away from the first floating electrode and located in the second mesh.
  • the touch electrode has a mesh structure, and at least one of the second electrode strip, the extension and the second protrusion is provided with a second mesh, and the touch substrate further includes:
  • a second floating electrode is provided on a side of the touch insulation layer facing away from the first floating electrode and located in the second mesh.
  • the second floating electrode has a grid structure.
  • a display panel including:
  • the touch substrate
  • the display substrate includes a substrate and a light-emitting structure.
  • the light-emitting structure is provided on the substrate.
  • the touch substrate is provided on a side of the light-emitting structure facing away from the substrate.
  • the light-emitting structure includes a first electrode and a second electrode arranged oppositely and a light-emitting layer located between the first electrode and the second electrode;
  • the display substrate further includes an encapsulation layer, and the encapsulation layer
  • the touch structure is disposed on a side of the light-emitting structure facing away from the substrate, and the touch structure is disposed on a surface of the encapsulation layer facing away from the substrate.
  • a display device including the display panel.
  • the touch substrate is disposed on the display substrate and the first floating electrode is located between the touch electrode and the display substrate. Since the first floating electrode and The touch electrodes at least partially overlap in the thickness direction of the touch insulating layer, thereby reducing the overlapping area of the touch electrodes and the display electrodes of the display substrate in the thickness direction of the touch substrate, thereby reducing the size of the display electrodes and the touch electrodes.
  • the coupling capacitance between them improves the signal-to-noise ratio; at the same time, the coupling capacitance is reduced, which also reduces the load on the touch electrodes and display electrodes.
  • FIG. 1 is a schematic diagram of a display panel according to an embodiment of the present disclosure.
  • FIG. 2 is a schematic diagram of a touch electrode according to an embodiment of the present disclosure.
  • FIG. 3 is a schematic diagram of a first touch electrode according to an embodiment of the present disclosure.
  • FIG. 4 is a partial schematic diagram of a first touch electrode according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of a second touch electrode according to an embodiment of the present disclosure.
  • FIG. 6 is a partial schematic diagram of a second touch electrode according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of the first floating electrode and the bridge electrode according to the embodiment of the present disclosure.
  • FIG. 8 is an enlarged schematic diagram of part A of the structure shown in FIG. 7 .
  • FIG. 9 is another schematic diagram of a touch electrode according to an embodiment of the present disclosure.
  • a display panel includes a touch substrate and a display substrate.
  • the touch substrate includes touch electrodes.
  • the display substrate includes display electrodes.
  • the display electrode may be a display cathode or a display anode. The coupling capacitance between the display electrode and the touch electrode is large, resulting in a poor signal-to-noise ratio of the touch substrate.
  • the touch substrate may include a touch insulation layer 1, a touch electrode 2 and a first floating electrode 3, where:
  • the touch electrode 2 is provided on one side of the touch insulation layer 1 .
  • the first floating electrode 3 is disposed on a side of the touch insulation layer 1 facing away from the touch electrode 2 .
  • the first floating electrode 3 and the touch electrode 2 at least partially overlap in the thickness direction of the touch insulation layer 1 .
  • the touch substrate is disposed on the display substrate and the first floating electrode 3 is located between the touch electrode 2 and the display substrate.
  • the control electrode 2 at least partially overlaps in the thickness direction of the touch insulating layer 1, which reduces the overlapping area of the touch electrode 2 and the display electrode of the display substrate in the thickness direction of the touch substrate, thereby reducing the overlap between the display electrode and the touch screen.
  • the coupling capacitance between the touch electrodes 2 is reduced, thereby improving the signal-to-noise ratio; at the same time, the coupling capacitance is reduced, which also reduces the load on the touch electrodes 2 and the display electrodes.
  • the touch electrode 2 may include a first touch electrode 100 and a second touch electrode 200 .
  • the first touch electrode 100 includes a first electrode strip 21 .
  • the second touch electrode 200 includes a second electrode strip 22 .
  • the number of the first electrode strips 21 may be multiple and extend along the first direction (the X direction in FIG. 2 ), that is, the plurality of first electrode strips 21 are arranged in parallel.
  • the number of the second electrode strips 22 may be multiple and extend along the second direction (the Y direction in FIG. 2 ), that is, the plurality of second electrode strips 22 are arranged in parallel.
  • the first electrode strips 21 and the second electrode strips 22 are arranged crosswise, that is, the first direction and the second direction are different.
  • the first direction may be perpendicular to the second direction.
  • One of the first electrode strip 21 and the second electrode strip 22 is a touch driving electrode strip, and the other is a touch sensing electrode strip.
  • the first electrode strip 21 and the second electrode strip 22 can be a grid structure, and the grid structure can be a rectangular grid structure, a hexagonal grid structure, a triangular grid structure, a rhombus grid structure, etc.
  • a plurality of first protrusions 211 distributed at intervals can be provided in the width direction of the first electrode strip 21 , and a first recess 212 is formed between two adjacent first protrusions 211 .
  • the width direction of the first electrode strip 21 may be the above-mentioned second direction.
  • any side of the first electrode strip 21 in the width direction may be provided with a plurality of first protrusions 211 distributed at intervals.
  • the number of first protrusions 211 provided on one side of the first electrode strip 21 may be the same as the number of first protrusions 211 provided on the other side of the first electrode strip 21 . Of course, they may also be different.
  • the first protrusion 211 may have a strip structure and extend along the second direction.
  • the width of the first protrusion 211 in a strip-shaped structure may be equal to the width of the first recessed part 212.
  • the width of the first protrusion 211 in a strip-shaped structure may also be smaller than the width of the first recessed part 212.
  • the width of the first electrode strip 21 and/or the width of the first protrusion 211 may be equal to 1-10 mesh widths, for example, equal to 2 mesh widths, 3 mesh widths, 4 mesh widths, or 5 mesh widths. grid width, 6 grid widths, 7 grid widths, 8 grid widths, 9 grid widths, etc.
  • the second electrode strip 22 in the second direction, includes a plurality of electrode segments 224 arranged at intervals.
  • the intersection area between the second electrode strip 22 and the first electrode strip 21 is the separation area between two adjacent electrode segments 224 .
  • the second electrode strip 22 is provided with an extension portion 221 in the width direction.
  • the width direction of the second electrode strip 22 may be the above-mentioned first direction.
  • the extension part 221 may extend along the first direction.
  • two extension portions 221 are provided in the width direction of each electrode segment 224.
  • the two extension portions 221 can be located on both sides of each electrode segment 224, and the two extension portions 221 can be aligned in the first direction. set up.
  • a second protrusion 222 may be provided in the width direction of the extension portion 221 .
  • the width direction of the extending portion 221 may be the above-mentioned second direction.
  • the number of the second protrusions 222 may be multiple and arranged at intervals.
  • a second recess 223 may be formed between two adjacent second protrusions 222 .
  • a plurality of second protrusions 222 distributed at intervals can be provided on any side of the extension portion 221 in the width direction.
  • the number of the second protrusions 222 provided on one side of the extension part 221 may be the same as the number of the second protrusions 222 provided on the other side of the extension part 221. Of course, they may also be different.
  • the second protrusion 222 may have a strip structure and extend along the second square shape.
  • the second protrusion 222 can extend into the first recessed portion 212
  • the first protrusion 211 can extend into the second recessed portion 223 .
  • the width of the second electrode strip 22, the width of the extension portion 221 or the width of the second protrusion 222 can be equal to 1-10 grid widths, for example, equal to 2 grid widths, 3 grid widths, or 4 grid widths. width, 5 grid widths, 6 grid widths, 7 grid widths, 8 grid widths, 9 grid widths, etc.
  • the touch substrate may further include bridge electrodes 5 .
  • the bridge electrode 5 may have a grid structure, and the grid structure may be a rectangular grid structure, a hexagonal grid structure, a triangular grid structure, a rhombus grid structure, etc.
  • the number of the bridge electrodes 5 may be multiple and arranged at intervals.
  • the bridge electrode 5 can be disposed on a side of the touch insulating layer 1 facing away from the touch electrode 2 .
  • One of the first electrode strip 21 and the second electrode strip 22 is connected to the bridge electrode 5 .
  • the second electrode strip 22 is connected to the bridge electrode 5 .
  • the bridge electrode 5 may include a plurality of bridge regions 51 arranged at intervals.
  • the plurality of bridge areas 51 arranged at intervals may be arranged insulatingly, but this disclosure does not limit this.
  • the two adjacent electrode segments 224 are connected through a bridge area 51 .
  • the second protrusion 222 of one extension part 221 may be connected to the second protrusion 222 of the other extension part 221 through another bridge area 51 .
  • the first floating electrode 3 is disposed on a side of the touch insulating layer 1 facing away from the touch electrode 2 .
  • the first floating electrode 3 and the touch electrode 2 are at least Partially overlap to reduce the overlapping area of the touch electrode 2 and the display electrode, thereby reducing the coupling capacitance between the touch electrode 2 and the display cathode.
  • the first floating electrode 3 may have a grid structure.
  • the first floating electrode 3 may be disposed in the same layer as the above-mentioned bridge electrode 5 .
  • the first floating electrode 3 may be provided with a first mesh 31 , and the bridge electrode 5 may be located in the first mesh 31 .
  • the number of the first meshes 31 may be multiple, and the plurality of bridging regions 51 are provided in the plurality of first meshes 31 in one-to-one correspondence.
  • the first floating electrode 3 may include a plurality of electrode regions. Multiple electrode areas can be arranged insulated, and of course, multiple electrode areas can also be electrically connected. Compared with multiple electrode areas that are electrically connected, multiple electrode areas that are insulated can further reduce the impact of the display electrode on the touch electrode 2 .
  • the first floating electrode 3 can also be called the first floating electrode or the first floating electrode, that is, the first floating electrode 3 is an island electrode design and is not grounded or connected to a fixed power supply signal. .
  • the touch substrate according to the embodiment of the present disclosure may further include a second floating electrode 10 .
  • the second floating electrode 10 can be disposed on a side of the touch insulation layer 1 facing away from the first floating electrode 3 .
  • the above-mentioned touch electrode 2 having a mesh structure may also be provided with a second mesh, and the second floating electrode 10 may be located in the second mesh.
  • the above-mentioned first electrode strip 21 may be provided with the second mesh.
  • the above-mentioned first protrusion 211 may also be provided with the second mesh.
  • the above-mentioned second electrode strip 22 may also be provided with the second mesh.
  • the above-mentioned extension part 221 may also be provided with the second mesh.
  • the above-mentioned second protrusion 222 may also be provided with the second mesh.
  • the second mesh may also be provided in the spacing area between the first touch electrode 100 and the second touch electrode 200 .
  • the second floating electrode 10 may have a grid structure.
  • the first touch electrode 100 extends along the first direction, and the second touch electrode 200 is connected in the second direction through the above-mentioned bridge electrode 5 .
  • the second floating electrode 10 may also be called a second floating electrode or a second floating electrode, that is, the second floating electrode 10 is an island electrode design and is not grounded or connected to a fixed power supply signal. .
  • the touch substrate may further include a buffer layer 6 and a touch protection layer 4 .
  • the buffer layer 6 may be located on a side of the touch insulating layer 1 facing away from the touch electrode 2 , and the first floating electrode 3 and the bridge electrode 5 are located between the buffer layer 6 and the touch insulating layer 1 .
  • the touch protective layer 4 covers the touch insulating layer 1 , the touch electrode 2 and the second floating electrode 10 .
  • an embodiment of the present disclosure also provides a display panel.
  • the display panel may include a display substrate and the touch substrate described in any of the above embodiments.
  • the display substrate may include a substrate 9 and a light emitting structure 8 .
  • the substrate 9 can be a rigid substrate or, of course, a flexible substrate.
  • the light-emitting structure 8 can be disposed on the substrate 9 .
  • a driving transistor may also be disposed between the light-emitting structure 8 and the substrate 9.
  • the driving transistor may be a thin film transistor.
  • the touch substrate may be disposed on a side of the light-emitting structure 8 facing away from the substrate 9 .
  • the light-emitting structure 8 is an OLED light-emitting structure, a Micro LED light-emitting structure, a Mini LED light-emitting structure, a quantum dot light-emitting structure or an LCD light-emitting structure.
  • the light-emitting structure 8 may include a first display electrode and a second display electrode arranged oppositely and a light-emitting layer located between the first display electrode and the second display electrode.
  • One of the first display electrode and the second display electrode is a display anode, and the other is a display cathode.
  • the display substrate may also include an encapsulation layer 7 .
  • the encapsulation layer 7 can be provided on a side of the light-emitting structure 8 facing away from the substrate 9 .
  • the encapsulation layer 7 may include a first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer.
  • the first inorganic encapsulation layer and the second inorganic encapsulation layer are arranged oppositely, and the organic encapsulation layer is wrapped between the first inorganic encapsulation layer and the second inorganic encapsulation layer.
  • the touch structure may be provided on the surface of the encapsulation layer 7 facing away from the substrate 9 .
  • the buffer layer 6 can be disposed on the surface of the encapsulation layer 7 facing away from the substrate 9 , and the touch insulating layer 1 can be located on the side of the buffer layer 6 facing away from the substrate 9 . Since the touch substrate in the display panel in the embodiment of the present disclosure is the same as the touch substrate in the above-mentioned embodiment of the touch substrate, it has the same beneficial effects, which will not be described again here.
  • An embodiment of the present disclosure also provides a display device, which may include the display panel described in any of the above embodiments.
  • the display device can be a mobile phone, of course, or it can also be a tablet computer, a TV, a watch, etc. Since the display panel in the display device of the embodiment of the present disclosure is the same as the display panel in the above-mentioned display panel embodiment, it has the same beneficial effects, which will not be described again here.

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Abstract

本公开提供了一种触控基板、显示面板及显示装置。该触控基板包括：触控绝缘层；触控电极，设于所述触控绝缘层的一侧；第一浮动电极，设于所述触控绝缘层背向所述触控电极的一侧，所述第一浮动电极与所述触控电极在所述触控绝缘层的厚度方向上至少部分重合。本公开能够提升信噪比。

Description

触控基板、显示面板及显示装置 技术领域
本公开涉及显示技术领域，尤其涉及一种触控基板、显示面板及显示装置。
背景技术
触控技术主要包括电阻式、电容式和红外光学式。其中，电容式触控技术具有反应灵敏的特点，被广泛应用于智能手机和平板电脑中。应用电容式触控技术的触控基板设有触控电极、触控引线以及触控芯片。该触控引线电连接于触控电极和触控芯片之间，以传输信号。然后，现有的触控基板的信噪比较差。
发明内容
本公开的目的在于提供一种触控基板、显示面板及显示装置，能够提升信噪比。
根据本公开的一个方面，提供一种触控基板，包括：
触控绝缘层；
触控电极，设于所述触控绝缘层的一侧；
第一浮动电极，设于所述触控绝缘层背向所述触控电极的一侧，所述第一浮动电极与所述触控电极在所述触控绝缘层的厚度方向上至少部分重合。
进一步地，所述第一浮动电极包括绝缘设置的多个电极区。
进一步地，所述触控电极包括交叉设置的第一电极条和第二电极条，所述触控基板还包括：
桥接电极，设于所述触控绝缘层背向所述触控电极的一侧，所述第一电极条和所述第二电极条中的一个与所述桥接电极连接，所述桥接电极与所述第一浮动电极同层设置。
进一步地，所述第一浮动电极为网格结构，所述第一浮动电极设有第一网孔，所述桥接电极位于所述第一网孔内。
进一步地，所述第一浮动电极为网格结构。
进一步地，所述触控电极包括交叉设置的第一电极条和第二电极条，所述第一电极条沿着第一方向延伸，所述第二电极条沿着第二方向延伸，所述第一方向与所述第二方向不同；
所述第一电极条的宽度方向上设有间隔分布的多个第一凸起，相邻的两个所述第一凸起之间形成第一凹陷部；所述第二电极条的宽度方向上设有延伸部，所述延伸部沿着所述第一方向延伸，所述延伸部的宽度方向上设有第二凸起，所述第二凸起伸入所述第一凹陷部。
进一步地，所述第二电极条的宽度方向上的一侧设有间隔分布的多个所述延伸部；对于相邻的两个所述延伸部，任一所述延伸部靠近另一所述延伸部的一侧设有所述第二凸起；所述触控基板还包括：
桥接电极，设于所述触控绝缘层背向所述触控电极的一侧；相邻的两个所述延伸部的所述第二凸起通过所述桥接电极连接。
进一步地，在所述第二方向上，所述第二电极条包括间隔设置的多个电极段；
所述桥接电极包括间隔设置的多个桥接区，相邻的两个所述延伸部的所述第二凸起通过一个所述桥接区连接，相邻的两个所述电极段通过另一所述桥接区连接。
进一步地，所述触控电极为网格结构，所述第一电极条的宽度、所述第二电极条的宽度、所述第一凸起的宽度、所述延伸部的宽度或所述第二凸起的宽度等于1-10个网格宽度。
进一步地，所述触控基板还包括缓冲层和触控保护层，所述缓冲层位于所述触控绝缘层背向所述触控电极的一侧，且所述第一浮动电极位于所述缓冲层与所述触控绝缘层之间；所述触控保护层覆盖所述触控绝缘层以及所述触控电极。
进一步地，所述触控电极为网格结构，所述触控电极设有第二网孔，所述触控基板还包括：
第二浮动电极，设于所述触控绝缘层背向所述第一浮动电极的一侧，且位于所述第二网孔内。
进一步地，所述触控电极为网格结构，所述第一电极条和/或所述第一凸起设有第二网孔，所述触控基板还包括：
第二浮动电极，设于所述触控绝缘层背向所述第一浮动电极的一侧，且位于所述第二网孔内。
进一步地，所述触控电极为网格结构，所述第二电极条、所述延伸部以及所述第二凸起中的至少一个设有第二网孔，所述触控基板还包括：
第二浮动电极，设于所述触控绝缘层背向所述第一浮动电极的一侧，且位于所述第二网孔内。
进一步地，所述第二浮动电极为网格结构。
根据本公开的一个方面，提供一种显示面板，包括：
所述的触控基板；
显示基板，包括衬底和发光结构，所述发光结构设于所述衬底上，所述触控基板设于所述发光结构背向所述衬底的一侧。
进一步地，所述发光结构包括相对设置的第一电极和第二电极以及位于所述第一电极与所述第二电极之间的发光层；所述显示基板还包括封装层，所述封装层设于所述发光结构背向所述衬底的一侧，所述触控结构设于所述封装层背向所述衬底的表面。
根据本公开的一个方面，提供一种显示装置，包括所述的显示面板。
本公开的触控基板、显示面板及显示装置，在使用过程中，将触控基板设于显示基板上，并使第一浮动电极位于触控电极与显示基板之间，由于第一浮动电极与触控电极在触控绝缘层的厚度方向上至少部分重合，减小了触控电极与显示基板的显示电极在触控基板的厚度方向上的重合面积，从而减小了显示电极与触控电极之间的耦合电容，进而提高了信噪比；同时，耦合电容减小，也降低了触控电极以及显示电极的负载。
附图说明
图1是本公开实施方式的显示面板的示意图。
图2是本公开实施方式的触控电极的示意图。
图3是本公开实施方式的第一触控电极的示意图。
图4是本公开实施方式的第一触控电极的局部示意图。
图5是本公开实施方式的第二触控电极的示意图。
图6是本公开实施方式的第二触控电极的局部示意图。
图7是本公开实施方式的第一浮动电极以及桥接电极的示意图。
图8是图7所示结构的A部放大示意图。
图9是本公开实施方式的触控电极的另一示意图。
附图标记说明：1、触控绝缘层；2、触控电极；21、第一电极条；211、第一凸起；212、第一凹陷部；22、第二电极条；221、延伸部；222、第二凸 起；223、第二凹陷部；224、电极段；3、第一浮动电极；31、第一网孔；4、触控保护层；5、桥接电极；51、桥接区；6、缓冲层；7、封装层；8、发光结构；9、衬底；10、第二浮动电极；100、第一触控电极；200、第二触控电极。
具体实施方式
这里将详细地对示例性实施方式进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施方式中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置的例子。
在本公开使用的术语是仅仅出于描述特定实施方式的目的，而非旨在限制本公开。除非另作定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开说明书以及权利要求书中使用的“第一”“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“一个”或者“一”等类似词语也不表示数量限制，而是表示存在至少一个。“多个”或者“若干”表示两个及两个以上。除非另行指出，“前部”、“后部”、“下部”和/或“上部”等类似词语只是为了便于说明，而并非限于一个位置或者一种空间定向。“包括”或者“包含”等类似词语意指出现在“包括”或者“包含”前面的元件或者物件涵盖出现在“包括”或者“包含”后面列举的元件或者物件及其等同，并不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而且可以包括电性的连接，不管是直接的还是间接的。在本公开说明书和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一 个或多个相关联的列出项目的任何或所有可能组合。
相关技术中，显示面板包括触控基板与显示基板。触控基板中包括触控电极。显示基板中包括显示电极。该显示电极可以为显示阴极或显示阳极。该显示电极与触控电极之间的耦合电容较大，导致触控基板的信噪比较差。
本公开实施方式提供一种触控基板。该触控基板可以包括触控绝缘层1、触控电极2以及第一浮动电极3，其中：
该触控电极2设于触控绝缘层1的一侧。该第一浮动电极3设于触控绝缘层1背向触控电极2的一侧，第一浮动电极3与触控电极2在触控绝缘层1的厚度方向上至少部分重合。
本公开实施方式的触控基板，在使用过程中，将触控基板设于显示基板上，并使第一浮动电极3位于触控电极2与显示基板之间，由于第一浮动电极3与触控电极2在触控绝缘层1的厚度方向上至少部分重合，减小了触控电极2与显示基板的显示电极在触控基板的厚度方向上的重合面积，从而减小了显示电极与触控电极2之间的耦合电容，进而提高了信噪比；同时，耦合电容减小，也降低了触控电极2以及显示电极的负载。
下面对本公开实施方式的触控面板的各部分进行详细说明：
如图2所示，该触控电极2可以包括第一触控电极100和第二触控电极200。该第一触控电极100包括第一电极条21。该第二触控电极200包括第二电极条22。该第一电极条21的数量可以为多个，且沿着第一方向(图2中的X方向)延伸，即多个第一电极条21平行设置。该第二电极条22的数量可以为多个，且沿着第二方向(图2中的Y方向)延伸，即多个第二电极条22平行设置。该第一电极条21和第二电极条22交叉设置，即该第一方向与第二方向不同。举例而言，该第一方向可以与第二方向垂直。该第一电极条21和第二电极条22中一个为触控驱动电极条，另一个为触控感应电极条。此外，该第一电极条21以及第二电极条22可以为网格结构，该网格结构可 以为矩形网格结构、六边形网格结构、三角形网格结构、菱形网格结构等。
如图3所示，该第一电极条21的宽度方向上可以设有间隔分布的多个第一凸起211，相邻的两个第一凸起211之间形成第一凹陷部212。该第一电极条21的宽度方向可以为上述的第二方向。其中，该第一电极条21的宽度方向上的任意一侧均可以设有间隔分布的多个第一凸起211。设于第一电极条21的一侧的第一凸起211的数量可以与设于第一电极条21的另一侧的第一凸起211的数量相同，当然，也可以不同。该第一凸起211可以呈条形结构，且沿着第二方向延伸。呈条形结构的第一凸起211的宽度可以等于上述第一凹陷部212的宽度，当然，呈条形结构的第一凸起211的宽度也可以小于上述第一凹陷部212的宽度。多个第一电极条21中存在相邻的两个第一电极条21电连接，具体地，对于电连接的相邻的两个第一电极条21，一个第一电极条21的第一凸起211与另一第一电极条21的第一凸起211接触，以使两个第一电极条21电连接。该第一电极条21的宽度和或第一凸起211的宽度可以等于1-10个网格宽度，例如等于2个网格宽度、3个网格宽度、4个网格宽度、5个网格宽度、6个网格宽度、7个网格宽度、8个网格宽度、9个网格宽度等。
如图5所示，在第二方向上，该第二电极条22包括间隔设置的多个电极段224。其中，第二电极条22与第一电极条21的交叉区域即为相邻两个电极段224的间隔区域。该第二电极条22的宽度方向上设有延伸部221。该第二电极条22的宽度方向可以为上述的第一方向。该延伸部221可以沿着第一方向延伸。具体而言，每个电极段224的宽度方向上均设有两个延伸部221，两个延伸部221可以位于各电极段224的两侧，且两个延伸部221可以在第一方向上对齐设置。
如图5所示，上述延伸部221的宽度方向上可以设有第二凸起222。该延伸部221的宽度方向可以为上述的第二方向。该第二凸起222的数量可以为多个，且间隔设置。相邻的两个第二凸起222之间可以形成第二凹陷部223。 其中，该延伸部221的宽度方向上的任意一侧均可以设有间隔分布的多个第二凸起222。设于延伸部221的一侧的第二凸起222的数量可以与设于延伸部221的另一侧的第二凸起222的数量相同，当然，也可以不同。该第二凸起222可以呈条形结构，且沿着第二方形延伸。该第二凸起222可以伸入上述的第一凹陷部212，上述的第一凸起211可以伸入第二凹陷部223。该第二电极条22的宽度、延伸部221的宽度或第二凸起222的宽度可以等于1-10个网格宽度，例如等于2个网格宽度、3个网格宽度、4个网格宽度、5个网格宽度、6个网格宽度、7个网格宽度、8个网格宽度、9个网格宽度等。
如图1、图7以及图8所示，该触控基板还可以包括桥接电极5。该桥接电极5可以为网格结构，该网格结构可以为矩形网格结构、六边形网格结构、三角形网格结构、菱形网格结构等。该桥接电极5的数量可以为多个，且间隔设置。该桥接电极5可以设于触控绝缘层1背向触控电极2的一侧。上述第一电极条21和第二电极条22中的一个与桥接电极5连接。举例而言，该第二电极条22与桥接电极5连接，具体地，如图5所示，上述间隔设置的多个电极段224中相邻的两个电极段224通过桥接电极5连接。其中，该桥接电极5可以包括间隔设置的多个桥接区51。间隔设置的多个桥接区51可以绝缘设置，但本公开对此不做限定。上述相邻的两个电极段224通过一个桥接区51连接。此外，对于相邻的两个延伸部221，一个延伸部221的第二凸起222可以与另一延伸部221的第二凸起222通过另一桥接区51连接。
如图1所示，该第一浮动电极3设于触控绝缘层1背向触控电极2的一侧，第一浮动电极3与触控电极2在触控绝缘层1的厚度方向上至少部分重合，以减少触控电极2与显示电极的重合面积，进而可以减少触控电极2与显示阴极的耦合电容。如图7和图8所示，该第一浮动电极3可以为网格结构。该第一浮动电极3可以与上述的桥接电极5同层设置。该第一浮动电极3可以设有第一网孔31，该桥接电极5可以位于第一网孔31内。以桥接电极5包括间隔设置的多个桥接区51为例，该第一网孔31的数量可以为多个， 且多个桥接区51一一对应地设于多个第一网孔31内。该第一浮动电极3可以包括多个电极区。多个电极区可以绝缘设置，当然，多个电极区也可以电连接。相比于电连接的多个电极区，绝缘设置的多个电极区能够进一步降低显示电极对触控电极2的影响。此外，该第一浮动(floating)电极3也可以称为第一浮置电极或第一浮空电极，即第一浮动电极3为孤岛的电极设计，其不接地，也不与固定电源信号连接。
如图4、图6以及图9所示，本公开实施方式的触控基板还可以包括第二浮动电极10。该第二浮动电极10可以设于触控绝缘层1背向第一浮动电极3的一侧。上述呈网格结构的触控电极2还可以设有第二网孔，该第二浮动电极10可以位于第二网孔内。上述的第一电极条21可以设有该第二网孔。上述的第一凸起211也可以设有该第二网孔。上述的第二电极条22也可以设有该第二网孔。上述的延伸部221也可以设有该第二网孔。上述的第二凸起222也可以设有该第二网孔。在本公开其它实施方式中，如图9所示，第一触控电极100和第二触控电极200之间的间隔区域也可以设有该第二网孔。此外，该第二浮动电极10可以为网格结构。在图9中，第一触控电极100沿着第一方向延伸，第二触控电极200在第二方向上通过上述的桥接电极5连接。此外，该第二浮动(floating)电极10也可以称为第二浮置电极或第二浮空电极，即第二浮动电极10为孤岛的电极设计，其不接地，也不与固定电源信号连接。
如图1所示，本公开实施方式的触控基板还可以包括缓冲层6和触控保护层4。该缓冲层6可以位于触控绝缘层1背向触控电极2的一侧，且第一浮动电极3和桥接电极5位于缓冲层6与触控绝缘层1之间。该触控保护层4覆盖触控绝缘层1、触控电极2以及第二浮动电极10。
如图1所示，本公开实施方式还提供一种显示面板。该显示面板可以包括显示基板以及上述任一实施方式所述的触控基板。该显示基板可以包括衬底9和发光结构8。该衬底9可以刚性衬底，当然，还可以柔性衬底。该发光结构8可以设于衬底9上。该发光结构8与衬底9之间还可以设有驱动晶 体管。该驱动晶体管可以薄膜晶体管。该触控基板可以设于发光结构8背向衬底9的一侧。该发光结构8为OLED发光结构、Micro LED发光结构、Mini LED发光结构、量子点发光结构或LCD发光结构。该发光结构8可以包括相对设置的第一显示电极和第二显示电极以及位于第一显示电极与第二显示电极之间的发光层。该第一显示电极和第二显示电极中一个为显示阳极，另一个为显示阴极。该显示基板还可以包括封装层7。该封装层7可以设于发光结构8背向衬底9的一侧。该封装层7可以包括第一无机封装层、有机封装层以及第二无机封装层。该第一无机封装层和第二无机封装层相对设置，该有机封装层包覆于第一无机封装层与第二无机封装层之间。该触控结构可以设于封装层7背向衬底9的表面。以触控结构包括缓冲层6为例，该缓冲层6可以设于封装层7背向衬底9的表面，该触控绝缘层1可以位于缓冲层6背向衬底9的一侧。由于本公开实施方式的显示面板中的触控基板同上述触控基板的实施方式中的触控基板相同，因此，其具有相同的有益效果，在此不再赘述。
本公开实施方式还提供一种显示装置，该显示装置可以包括上述任一实施方式所述的显示面板。该显示装置可以为手机，当然，也可以为平板电脑、电视、手表等。由于本公开实施方式的显示装置中的显示面板同上述显示面板的实施方式中的显示面板相同，因此，其具有相同的有益效果，在此不再赘述。
以上所述仅是本公开的较佳实施方式而已，并非对本公开做任何形式上的限制，虽然本公开已以较佳实施方式揭露如上，然而并非用以限定本公开，任何熟悉本专业的技术人员，在不脱离本公开技术方案的范围内，当可利用上述揭示的技术内容做出些许更动或修饰为等同变化的等效实施方式，但凡是未脱离本公开技术方案的内容，依据本公开的技术实质对以上实施方式所作的任何简单修改、等同变化与修饰，均仍属于本公开技术方案的范围内。

Claims (17)

  1. 一种触控基板，其特征在于，包括：
    触控绝缘层；
    触控电极，设于所述触控绝缘层的一侧；
    第一浮动电极，设于所述触控绝缘层背向所述触控电极的一侧，所述第一浮动电极与所述触控电极在所述触控绝缘层的厚度方向上至少部分重合。
  2. 根据权利要求1所述的触控基板，其特征在于，所述第一浮动电极包括绝缘设置的多个电极区。
  3. 根据权利要求1所述的触控基板，其特征在于，所述触控电极包括交叉设置的第一电极条和第二电极条，所述触控基板还包括：
    桥接电极，设于所述触控绝缘层背向所述触控电极的一侧，所述第一电极条和所述第二电极条中的一个与所述桥接电极连接，所述桥接电极与所述第一浮动电极同层设置。
  4. 根据权利要求3所述的触控基板，其特征在于，所述第一浮动电极为网格结构，所述第一浮动电极设有第一网孔，所述桥接电极位于所述第一网孔内。
  5. 根据权利要求1所述的触控基板，其特征在于，所述第一浮动电极为网格结构。
  6. 根据权利要求1所述的触控基板，其特征在于，所述触控电极包括交叉设置的第一电极条和第二电极条，所述第一电极条沿着第一方向延伸，所述第二电极条沿着第二方向延伸，所述第一方向与所述第二方向不同；
    所述第一电极条的宽度方向上设有间隔分布的多个第一凸起，相邻的两个所述第一凸起之间形成第一凹陷部；所述第二电极条的宽度方向上设有延伸部，所述延伸部沿着所述第一方向延伸，所述延伸部的宽度方向上设有第二凸起，所述第二凸起伸入所述第一凹陷部。
  7. 根据权利要求6所述的触控基板，其特征在于，所述第二电极条的宽 度方向上的一侧设有间隔分布的多个所述延伸部；对于相邻的两个所述延伸部，任一所述延伸部靠近另一所述延伸部的一侧设有所述第二凸起；所述触控基板还包括：
    桥接电极，设于所述触控绝缘层背向所述触控电极的一侧；相邻的两个所述延伸部的所述第二凸起通过所述桥接电极连接。
  8. 根据权利要求7所述的触控基板，其特征在于，在所述第二方向上，所述第二电极条包括间隔设置的多个电极段；
    所述桥接电极包括间隔设置的多个桥接区，相邻的两个所述延伸部的所述第二凸起通过一个所述桥接区连接，相邻的两个所述电极段通过另一所述桥接区连接。
  9. 根据权利要求7所述的触控基板，其特征在于，所述触控电极为网格结构，所述第一电极条的宽度、所述第二电极条的宽度、所述第一凸起的宽度、所述延伸部的宽度或所述第二凸起的宽度等于1-10个网格宽度。
  10. 根据权利要求1所述的触控基板，其特征在于，所述触控基板还包括缓冲层和触控保护层，所述缓冲层位于所述触控绝缘层背向所述触控电极的一侧，且所述第一浮动电极位于所述缓冲层与所述触控绝缘层之间；所述触控保护层覆盖所述触控绝缘层以及所述触控电极。
  11. 根据权利要求1所述的触控基板，其特征在于，所述触控电极为网格结构，所述触控电极设有第二网孔，所述触控基板还包括：
    第二浮动电极，设于所述触控绝缘层背向所述第一浮动电极的一侧，且位于所述第二网孔内。
  12. 根据权利要求6所述的触控基板，其特征在于，所述触控电极为网格结构，所述第一电极条和/或所述第一凸起设有第二网孔，所述触控基板还包括：
    第二浮动电极，设于所述触控绝缘层背向所述第一浮动电极的一侧，且位于所述第二网孔内。
  13. 根据权利要求7所述的触控基板，其特征在于，所述触控电极为网格 结构，所述第二电极条、所述延伸部以及所述第二凸起中的至少一个设有第二网孔，所述触控基板还包括：
    第二浮动电极，设于所述触控绝缘层背向所述第一浮动电极的一侧，且位于所述第二网孔内。
  14. 根据权利要求11-13任一项所述的触控基板，其特征在于，所述第二浮动电极为网格结构。
  15. 一种显示面板，其特征在于，包括：
    权利要求1-14任一项所述的触控基板；
    显示基板，包括衬底和发光结构，所述发光结构设于所述衬底上，所述触控基板设于所述发光结构背向所述衬底的一侧。
  16. 根据权利要求15所述的显示面板，其特征在于，所述发光结构包括相对设置的第一电极和第二电极以及位于所述第一电极与所述第二电极之间的发光层；所述显示基板还包括封装层，所述封装层设于所述发光结构背向所述衬底的一侧，所述触控结构设于所述封装层背向所述衬底的表面。
  17. 一种显示装置，其特征在于，包括权利要求15或16所述的显示面板。
PCT/CN2022/081397 2022-03-17 2022-03-17 触控基板、显示面板及显示装置 WO2023173353A1 (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150193035A1 (en) * 2012-06-28 2015-07-09 Polyic Gmbh & Co.Kg Multi-Layer Body
CN106997448A (zh) * 2016-01-22 2017-08-01 晨星半导体股份有限公司 指纹辨识电极结构
CN215644496U (zh) * 2021-06-25 2022-01-25 京东方科技集团股份有限公司 显示装置、显示面板

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150193035A1 (en) * 2012-06-28 2015-07-09 Polyic Gmbh & Co.Kg Multi-Layer Body
CN106997448A (zh) * 2016-01-22 2017-08-01 晨星半导体股份有限公司 指纹辨识电极结构
CN215644496U (zh) * 2021-06-25 2022-01-25 京东方科技集团股份有限公司 显示装置、显示面板

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