WO2023108675A1 - 触控面板和触控装置 - Google Patents

触控面板和触控装置 Download PDF

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Publication number
WO2023108675A1
WO2023108675A1 PCT/CN2021/139653 CN2021139653W WO2023108675A1 WO 2023108675 A1 WO2023108675 A1 WO 2023108675A1 CN 2021139653 W CN2021139653 W CN 2021139653W WO 2023108675 A1 WO2023108675 A1 WO 2023108675A1
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WO
WIPO (PCT)
Prior art keywords
channel
electrode
touch panel
electrodes
width
Prior art date
Application number
PCT/CN2021/139653
Other languages
English (en)
French (fr)
Inventor
巩厚富
靳增建
罗垒垒
王亚男
马亚龙
Original Assignee
武汉华星光电半导体显示技术有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US17/597,238 priority Critical patent/US11868572B2/en
Publication of WO2023108675A1 publication Critical patent/WO2023108675A1/zh
Priority to US18/528,525 priority patent/US20240111388A1/en

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Classifications

    • 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
    • G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
    • G06F3/04142—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position the force sensing means being located peripherally, e.g. disposed at the corners or at the side of a touch sensing plate
    • 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
    • G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
    • G06F3/04144—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position using an array of force sensing 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04162—Control or interface arrangements specially adapted for digitisers for exchanging data with external devices, e.g. smart pens, via the digitiser sensing hardware
    • 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer

Definitions

  • the present application relates to the field of display technology, in particular to a touch panel and a touch device.
  • Touch panels based on DOT technology usually design identical touch units on the touch layer and array them on the entire surface. However, for a single touch unit on the edge of the touch panel, there is no reference channel for the touch unit on the edge. (Channel), and limited by the narrow frame requirements, the touch electrode pattern of the touch unit is not allowed to expand. When the active pen is used to operate the edge area of the touch panel, the writing accuracy and linearity of the pen are poor.
  • the present application provides a touch panel and a touch device to alleviate the technical problems of poor touch accuracy and linearity existing in the edge area of the existing touch panel.
  • An embodiment of the present application provides a touch panel, which includes:
  • a third channel arranged parallel to the first channel, the third channel is located at least on one side edge of the touch panel;
  • the distance between the central axis of the third passage and the central axis of the adjacent first passage is smaller than the distance between the central axes of two adjacent first passages, and the third The width of the channel perpendicular to the first direction is equal to the width of the first channel perpendicular to the first direction.
  • each of the first channels includes two first drive electrodes arranged at intervals, each of the third channels includes a second drive electrode, and the second drive electrodes A width perpendicular to the first direction is greater than a width of the first driving electrode perpendicular to the first direction.
  • the width of the second driving electrode perpendicular to the first direction is equal to the sum of the widths of the two first driving electrodes perpendicular to the first direction.
  • the distance between the central axis of the third channel and the central axis of the adjacent first channel is greater than the central axes of the two adjacent first channels half of the distance between them.
  • the touch panel provided in the embodiment of the present application, it further includes a fourth channel arranged in parallel with the second channel, and the fourth channel is at least located on the other side edge of the touch panel; wherein, the fourth channel
  • the distance between the central axes of the four passages and the central axes of the adjacent second passages is smaller than the distance between the central axes of two adjacent second passages, and the fourth passage is perpendicular to the
  • the width in the second direction is equal to the width of the second channel perpendicular to the second direction.
  • each of the second channels includes two first sensing electrodes arranged at intervals
  • each of the fourth channels includes a second sensing electrode
  • the second sensing electrodes A width perpendicular to the second direction is greater than a width of the first sensing electrode perpendicular to the second direction.
  • the width of the second sensing electrode along the perpendicular direction to the second direction is equal to the sum of the widths of the two first sensing electrodes along the perpendicular direction to the second direction.
  • the distance between the central axis of the fourth channel and the central axis of the adjacent second channel is greater than the central axes of the two adjacent second channels half of the distance between them.
  • the touch panel further includes:
  • a first metal layer patterned to form the first driving electrode and the second driving electrode
  • a second metal layer patterned to form the first sensing electrode and the second sensing electrode
  • the first insulating layer is located between the first metal layer and the second metal layer.
  • the touch panel further includes:
  • the third metal layer is patterned to form the first driving electrode, the second driving electrode, the first sensing electrode, and the second sensing electrode;
  • a bridging layer disposed on a side of the second insulating layer away from the third metal layer, comprising a plurality of bridging electrodes
  • the first driving electrode, the second driving electrode, the first sensing electrode and the second sensing electrode are all formed by electrically connecting patterned electrode blocks, and the electrode blocks of the first driving electrodes
  • the electrode blocks of the second driving electrodes are respectively bridged by different bridging electrodes, or the electrode blocks of the first sensing electrodes and the electrode blocks of the second sensing electrodes are respectively bridged by different bridging electrodes.
  • the width of the first interval perpendicular to the first direction is equal to twice the width of the second interval perpendicular to the first direction.
  • the width of the third interval perpendicular to the second direction is equal to twice the width of the fourth interval perpendicular to the second direction.
  • An embodiment of the present application further provides a touch panel, which includes a display panel and the touch panel according to one of the aforementioned embodiments, the touch panel is located in a light emitting direction of the display panel.
  • the touch panel includes a first channel and a third channel extending along the first direction and arranged side by side, and the central axis of the third channel is the same as that of the adjacent first channel.
  • the distance between the central axes of a channel is smaller than the distance between the central axes of two adjacent first channels, and the width of the third channel along the direction perpendicular to the first channel is equal to that of the first channel Along the width perpendicular to the first direction, by reducing the distance between the third channel and the adjacent first channel, the sensing capacity of the third channel is increased, which improves the accuracy and linearity of touch in the edge area Spend.
  • FIG. 1 is a schematic top view structural diagram of a touch panel provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of an enlarged structure of a touch unit on a touch panel provided by an embodiment of the present application.
  • FIG. 3 is a schematic cross-sectional structure diagram of a touch panel provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a change curve of touch sensitivity and linearity in an edge area of a touch panel provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a change curve of touch sensitivity and linearity in an edge area of a conventional touch panel.
  • FIG. 6 is another schematic top view structure diagram of the touch panel provided by the embodiment of the present application.
  • FIG. 7 is another schematic cross-sectional structure diagram of the touch panel provided by the embodiment of the present application.
  • FIG. 8 is a schematic cross-sectional structure diagram of a touch device provided by an embodiment of the present application.
  • Figure 1 is a schematic top view of the touch panel provided by the embodiment of the present application
  • Figure 2 is a schematic diagram of the enlarged structure of the touch unit on the touch panel provided by the embodiment of the present application
  • Figure 3 A schematic cross-sectional structure diagram of a touch panel provided by an embodiment of the present application.
  • the touch panel 100 includes a plurality of parallel first channels 10 extending along the first direction X and a third channel 20 arranged parallel to the first channels 10, the third channel 20 is at least located on the touch panel One side edge of the panel 100, and a plurality of parallel second channels 30 extending along the second direction Y and a fourth channel 40 arranged parallel to the second channels 30, the fourth channels 40 are at least located on the touch the other edge of the control panel 100.
  • the first channel 10 and the third channel 20 are used to provide driving signals to the touch panel 100
  • the second channel 30 and the fourth channel 40 are used to return touch sensing signals.
  • first direction X is a horizontal direction
  • second direction Y is a vertical direction
  • angle between the first direction X and the second direction Y is 90 degrees
  • first direction X in the present application may also be a vertical direction
  • second direction Y may also be a horizontal direction
  • first direction X and the second direction Y The included angle between can also be other angles.
  • a plurality of the first channels 10 are located in the middle area of the touch panel 100, and the number of the third channels 20 is two, and the two third channels 20 are respectively located in the touch panel 100.
  • the present application is not limited thereto, and the third channel 20 of the present application may also be provided as one according to actual needs, and the one third channel 20 is located at an edge area of the touch panel 100 .
  • the distance L2 between the central axis of the third passage 20 and the central axis of the adjacent first passage 10 is smaller than the distance L1 between the central axes of two adjacent first passages 10, so as to reduce The distance between the third channel 20 and the adjacent first channel 10 is small.
  • there is a first interval between every two adjacent first passages 10 there is a second interval between the third passage 20 and adjacent first passages 10 , and the first The width of the interval perpendicular to the first direction X is greater than the width of the second interval perpendicular to the first direction X.
  • the width of the first interval perpendicular to the first direction X is equal to twice the width of the second interval perpendicular to the first direction X.
  • each of the first channels 10 includes two first drive electrodes 11 arranged at intervals
  • each of the third channels 20 includes a second drive electrode 21, and the first drive electrodes 11 and the The second driving electrodes 21 are arranged on the same layer, and each of the first channels 10 is connected to a touch lead Trace, and each of the third channels 20 is also connected to a touch lead Trace.
  • the width D2 of the second driving electrode 21 perpendicular to the first direction X is greater than the width D1 of the first driving electrode 11 perpendicular to the first direction X.
  • the width D2 of the second driving electrode 21 perpendicular to the first direction X is equal to the sum of the widths D1 of the two first driving electrodes 11 perpendicular to the first direction X.
  • each channel in the present application refers to the symmetrical center line of each channel, and the electrodes of each channel are symmetrical about the symmetrical center line, for example, the two first driving electrodes 11 in the first channel 10 It is symmetrical about the central axis of the first channel 10 .
  • a plurality of the second channels 30 are located in the middle area of the touch panel 100, and the number of the fourth channels 40 is two, and the two fourth channels 40 are respectively located in the touch panel 100. In the two edge regions of 100 , so many second passages 30 are located between two fourth passages 40 .
  • the present application is not limited thereto, and the fourth channel 40 of the present application may also be provided as one according to actual needs, and the one fourth channel 40 is located at an edge area of the touch panel 100 .
  • FIG. 1 shows three first channels 10 and three second channels 30, but the present application is not limited thereto, and the touch panel 100 of the present application may also include more or less The first channel 10 and the second channel 30 .
  • the distance L4 between the central axis of the fourth passage 40 and the central axis of the adjacent second passage 30 is smaller than the distance L3 between the central axes of two adjacent second passages 30, so as to reduce The distance between the fourth channel 40 and the adjacent second channel 30 is small.
  • there is a third interval between every two adjacent second channels 30 and there is a fourth interval between the fourth channel 40 and adjacent second channels 30 .
  • a width of the third interval perpendicular to the second direction Y is greater than a width of the fourth interval L4 perpendicular to the second direction Y.
  • the width of the third interval perpendicular to the second direction Y is equal to twice the width of the fourth interval perpendicular to the second direction Y.
  • the width of the fourth passage 40 perpendicular to the second direction Y is equal to the width of the second passage 30 perpendicular to the second direction Y. At this time, it is necessary to ensure that the width of the fourth passage 40
  • the distance L4 between the central axis and the central axis of the adjacent second channels 30 is greater than half of the distance L3 between the central axes of two adjacent second channels 30 .
  • each of the second channels 30 includes two first sensing electrodes 31 arranged at intervals
  • each of the fourth channels 40 includes a second sensing electrode 41
  • the first sensing electrodes 31 and the The second sensing electrodes 41 are arranged on the same layer
  • each of the second channels 30 is connected to a touch lead Trace
  • each of the fourth channels 40 is also connected to a touch lead Trace.
  • the width D4 of the second sensing electrode 41 perpendicular to the second direction Y is greater than the width D3 of the first sensing electrode 31 perpendicular to the second direction Y.
  • the width D4 of the second sensing electrode 41 perpendicular to the second direction Y is equal to the sum of the widths D3 of the two first sensing electrodes 31 perpendicular to the second direction Y.
  • the first channel 10 and the third channel 20 are criss-crossed with the corresponding second channel 30 and the fourth channel 40 , so that the touch panel 100 is divided into a plurality of touch units.
  • the first channel 10 and the second channel 30 are criss-crossed to form the first touch unit TPU1
  • the third channel 20 and the second channel 30 are criss-crossed to form the first touch unit TPU2.
  • the fourth channel 40 and the first channel 10 are criss-crossed to form the third touch unit TPU3.
  • the third channel 20 and the The fourth channels 40 are criss-crossed to form the fourth touch unit TPU4.
  • the area of the first touch unit TPU2 and the area of the third touch unit TPU3 are smaller than the area of the first touch unit TPU1, obviously, the area of the fourth touch unit TPU4 is the smallest , which is smaller than the areas of the other three touch units.
  • the first touch unit TPU1 includes two first driving electrodes 11 and two first sensing electrodes 31, the first driving electrodes 11 and the first sensing electrodes 31 are located at different layer.
  • the first touch unit TPU2 includes one second driving electrode 21 and two first sensing electrodes 31 , and the second driving electrodes 21 and the first sensing electrodes 31 are located on different layers.
  • the third touch unit TPU3 includes one second sensing electrode 41 and two first driving electrodes 11 , and the second sensing electrode 41 and the first driving electrodes 11 are located on different layers.
  • the fourth touch unit TPU4 includes one second driving electrode 21 and one second sensing electrode 41 , and the second driving electrode 21 and the second sensing electrode 41 are located on different layers.
  • the touch panel 100 further includes a substrate 50 and a first metal layer, a second metal layer, and a first insulating layer 51 stacked on the substrate 50, and the first metal layer is formed by patterning
  • FIG. 3 only schematically shows the first driving electrode 11 .
  • the second metal layer is patterned to form the first sensing electrode 31 and the second sensing electrode 41 .
  • the first insulating layer 51 is located between the first metal layer and the second metal layer.
  • the "same layer arrangement" in this application means that in the preparation process, at least two different structures are obtained by patterning the film layer formed of the same material, and the at least two different structures are the same layer settings.
  • the first driving electrode 11 and the second driving electrode 21 in this embodiment are obtained by patterning the same metal film layer, then the first driving electrode 11 and the second driving electrode 21 are the same layer settings.
  • the design of the third channel 20 and the fourth channel 40 in the edge area of the touch panel 100 from the first channel 10 and the second channel 30 in the plane making the area of the touch unit in the edge area of the touch panel 100 smaller than the area of the touch unit in the in-plane area, and increasing the second drive electrode 21 of the touch unit in the edge area of the touch panel 100 Or the width of the second sensing electrode 41, so that the overlapping area of the driving electrode and the sensing electrode in the touch unit in the edge area of the touch panel 100 is equal to that in the touch unit in the in-plane area of the touch panel 100
  • the overlapping area of the driving electrode and the sensing electrode for example, the overlapping area of the second driving electrode 21 and the first sensing electrode 31 in the first touch unit TPU2 is equal to that in the first touch unit TPU1.
  • the overlapping area of the first driving electrode 11 and the first sensing electrode 31 is equal to that in the first touch unit TPU1.
  • the width D2 of the second driving electrode 21 in the third channel 20 is the same as the width of the two first driving electrodes 11 in the first channel 10
  • the sum of D1 is close to or equal to, and the sum of the width D4 of the second sensing electrode 41 in the fourth channel 40 and the width D3 of the two first sensing electrodes 31 in the second channel 30 is close to or equal to or Equal, of course, under the condition that the area of the touch control unit in the edge area is not increased, the width D2 of the second driving electrode 21 in the third channel 20 can be made larger than the width D2 of the two electrodes in the first channel 10.
  • the sum of the widths D1 of the first driving electrodes 11 is more preferable. In this way, while ensuring the touch sensitivity of the touch units in the edge area, since the distance between the touch units in the edge area and the in-plane touch units becomes smaller, the touch sensitivity of the channel adjacent to the edge area increases, In this way, when calculating the coordinates of the touch position, it can be calculated more accurately, which greatly improves the accuracy and linearity of the touch.
  • FIG. 4 is a schematic diagram of the change curve of the touch sensitivity and linearity in the edge area of the touch panel provided by the embodiment of the present application.
  • This application takes the sensing channel of the touch panel 100 as an example, and defines the fourth channel 40 in the edge area of the touch panel 100 as the first channel N, and the two adjacent channels 40
  • the two second channels 30 are respectively the second channel N+1 and the third channel N+2, and the width D4 of the second sensing electrode 41 in the fourth channel 40 is equal to two in the second channel 30
  • the sum of the widths D3 of the first sensing electrodes 31, and the area of the third touch unit TPU3 is equal to half of the area of the first touch unit TPU1, as shown exemplarily in (a) of FIG. 4 , so
  • the length of the third touch unit TPU3 and the first touch unit TPU1 are the same, the width of the third touch unit TPU3 is 2, and the width of the first touch unit TPU1 is 4.
  • each touch unit of the existing touch panel is the same, and the setting of touch electrodes in each touch unit is also the same, as shown in (a) in Figure 5, which also defines the edge of the touch panel
  • the channel in the area is the first channel n, and the two channels adjacent to the first channel n are the second channel n+1 and the third channel n+2.
  • the stylus 200 slides gradually from the edge of the first channel n to the second channel n+1 and the third channel n+2
  • the The variation curves of the touch sensing values of the first channel n, the second channel n+1, and the third channel n+2 are shown in (b) in FIG. 5 , where the horizontal line in (b) in FIG.
  • FIG. 5 The coordinates represent the sliding distance of the stylus 200 in the width direction of the touch unit, and the ordinate in FIG. 5( b ) represents the amount of touch sensing.
  • (c) of FIG. 5 shows a schematic diagram comparing the touch linearity curve M2 and the theoretical linearity curve M of the conventional touch panel.
  • FIG. 6 is another schematic top view of the touch panel provided by the embodiment of the present application
  • FIG. 7 is another schematic diagram of the touch panel provided by the embodiment of the present application. Schematic diagram of a cross-sectional structure.
  • the driving electrodes and the sensing electrodes are arranged in different layers.
  • the touch panel 101 further includes a third metal layer, a second insulating layer 52 and a bridging layer, and the third metal layer is patterned
  • the first driving electrodes 11 , the second driving electrodes 21 , the first sensing electrodes 31 and the second sensing electrodes 41 are formed.
  • the second insulating layer 52 covers the third metal layer.
  • the bridging layer is disposed on a side of the second insulating layer 52 away from the third metal layer, and includes a plurality of bridging electrodes 60 .
  • the first driving electrode 11, the second driving electrode 21, the first sensing electrode 31 and the second sensing electrode 41 are all formed by electrically connecting patterned electrode blocks, and the first driving The electrode block of the electrode 11 and the electrode block of the second driving electrode 21 are respectively bridged by different bridging electrodes 60, or the electrode block of the first sensing electrode 31 and the electrode block of the second sensing electrode 41 are respectively Bridged by different bridging electrodes 60 , the embodiment of the present application is described by taking the electrode block of the first driving electrode 11 and the electrode block of the second driving electrode 21 to be bridged by different bridging electrodes 60 respectively.
  • the driving electrodes including the first driving electrodes 11 and the second driving electrodes 21
  • the sensing electrodes including the first sensing electrodes 31 and the second sensing electrodes 41
  • a bridging layer is provided at the overlapping position of the driving electrodes and the sensing electrodes to avoid contact between the driving electrodes and the sensing electrodes.
  • the electrode blocks of the driving electrodes and the electrode blocks of the sensing electrodes can be arranged in other regular or irregular patterns such as rhombuses.
  • the second sensing electrodes 41 and the second The driving electrode 21 is different from the first sensing electrode 31 in the plane and the width D1 of the first driving electrode 11, so that the electrode block of the second sensing electrode 41 in the edge region is different from the electrode block of the first sensing electrode 31, and the second driving electrode 21 is different from the electrode block of the first driving electrode 11, as shown in FIG. design.
  • the above-mentioned embodiments please refer to the above-mentioned embodiments, which will not be repeated here.
  • FIG. 8 is a schematic cross-sectional structure diagram of the touch device provided by the embodiment of the present application.
  • the touch device 1000 includes a display panel 300 and a touch panel 100 in one of the above-mentioned embodiments. This embodiment takes the touch panel 100 as an example. superior.
  • the display panel 300 includes an OLED display panel, etc.
  • the OLED display panel includes a driving circuit layer 301, a light-emitting functional layer 302 located on the driving circuit layer 301, and an encapsulation layer 303 located on the light-emitting functional layer 302.
  • the touch panel 100 is directly fabricated on the encapsulation layer 303 .
  • the present application is not limited thereto, and the touch panel 100 of the present application can also be hung in the light emitting direction of the OLED display panel.
  • the present application provides a touch panel and a touch device.
  • the touch panel includes a first channel and a third channel extending along a first direction and arranged side by side.
  • the distance between the central axes of a channel is smaller than the distance between the central axes of two adjacent first channels, and the width of the third channel along the direction perpendicular to the first channel is equal to that of the first channel Along the width perpendicular to the first direction, by reducing the distance between the third channel and the adjacent first channel, the sensing capacity of the third channel is increased, which improves the accuracy and linearity of touch in the edge area Spend.

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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)
  • Computer Networks & Wireless Communication (AREA)
  • Position Input By Displaying (AREA)

Abstract

本申请提供一种触控面板和触控装置，该触控面板包括沿第一方向延伸且并排排布的第一通道和第三通道，通过减小第三通道与相邻的第一通道之间的距离，并保证第三通道与第一通道的宽度相同，使得第三通道的感应量增大，提高了边缘区域触控的精准度和线性度。

Description

触控面板和触控装置 技术领域
本申请涉及显示技术领域，尤其涉及一种触控面板和触控装置。
 背景技术
随着触控技术的发展，出现了on-cell触控方案，比如目前常用的DOT(Direct On Cell Touch，直接将触控层制作于封装层上)技术，该技术方案将触控层直接集成在封装层上，不用再单独增加一层外挂触控层，具有更好的透过率、耐弯折性能，且可以有效减小屏幕的厚度，降低产品成本。
基于DOT技术的触控面板，通常是在触控层设计完全一致的触控单元，并整面阵列，但是该设计对于触控面板边缘的单个触控单元，由于边缘的触控单元没有参考通道（Channel），而且受限于窄边框需求使得触控单元的触控电极图案不允许外扩，当使用主动笔操作触控面板的边缘区域时，使得笔的书写精准度和线性度较差。
 技术问题
本申请提供一种触控面板和触控装置，以缓解现有触控面板的边缘区域存在的触控精准度和线性度较差的技术问题。
 技术解决方案
为解决上述问题，本申请提供的技术方案如下：
本申请实施例提供一种触控面板，其包括：
多条平行且沿第一方向延伸的第一通道；
多条平行且沿第二方向延伸的第二通道；
与所述第一通道平行设置的第三通道，所述第三通道至少位于所述触控面板的一侧边缘；
其中，所述第三通道的中轴与相邻的所述第一通道的中轴之间的距离小于相邻的两条所述第一通道的中轴之间的距离，且所述第三通道沿垂直于所述第一方向的宽度等于所述第一通道沿垂直于所述第一方向的宽度。
在本申请实施例提供的触控面板中，每一所述第一通道包括两条间隔设置的第一驱动电极，每一所述第三通道包括一条第二驱动电极，所述第二驱动电极沿垂直于所述第一方向的宽度大于所述第一驱动电极沿垂直于所述第一方向的宽度。
在本申请实施例提供的触控面板中，所述第二驱动电极沿垂直于所述第一方向的宽度等于两条所述第一驱动电极沿垂直于所述第一方向的宽度之和。
在本申请实施例提供的触控面板中，所述第三通道的中轴与相邻的所述第一通道的中轴之间的距离大于相邻的两条所述第一通道的中轴之间的距离的二分之一。
在本申请实施例提供的触控面板中，还包括与所述第二通道平行设置的第四通道，所述第四通道至少位于所述触控面板的另一侧边缘；其中，所述第四通道的中轴与相邻的所述第二通道的中轴之间的距离小于相邻的两条所述第二通道的中轴之间的距离，且所述第四通道沿垂直于所述第二方向的宽度等于所述第二通道沿垂直于所述第二方向的宽度。
在本申请实施例提供的触控面板中，每一所述第二通道包括两条间隔设置的第一感应电极，每一所述第四通道包括一条第二感应电极，所述第二感应电极沿垂直于所述第二方向的宽度大于所述第一感应电极沿垂直于所述第二方向的宽度。
在本申请实施例提供的触控面板中，所述第二感应电极沿垂直于所述第二方向的宽度等于两条所述第一感应电极沿垂直于所述第二方向的宽度之和。
在本申请实施例提供的触控面板中，所述第四通道的中轴与相邻的所述第二通道的中轴之间的距离大于相邻的两条所述第二通道的中轴之间的距离的二分之一。
在本申请实施例提供的触控面板中，所述触控面板还包括：
第一金属层，图案化形成所述第一驱动电极和所述第二驱动电极；
第二金属层，图案化形成所述第一感应电极和所述第二感应电极；
第一绝缘层，位于所述第一金属层和所述第二金属层之间。
在本申请实施例提供的触控面板中，所述触控面板还包括：
第三金属层，图案化形成所述第一驱动电极、所述第二驱动电极、所述第一感应电极以及所述第二感应电极；
第二绝缘层，覆于所述第三金属层上；
桥接层，设置于所述第二绝缘层远离所述第三金属层的一侧，包括多个桥接电极；
其中，所述第一驱动电极、所述第二驱动电极、所述第一感应电极以及所述第二感应电极均由图案化的电极块电连接形成，且所述第一驱动电极的电极块和所述第二驱动电极的电极块分别通过不同的所述桥接电极桥接，或者所述第一感应电极的电极块和所述第二感应电极的电极块分别通过不同的所述桥接电极桥接。
在本申请实施例提供的触控面板中，所述第一间隔沿垂直于所述第一方向的宽度等于所述第二间隔沿垂直于所述第一方向的宽度的二倍。
在本申请实施例提供的触控面板中，所述第三间隔沿垂直于所述第二方向的宽度等于所述第四间隔沿垂直于所述第二方向的宽度的二倍。
本申请实施例还提供一种触控面板，其包括显示面板以及前述实施例其中之一的触控面板，所述触控面板位于所述显示面板的出光方向上。
 有益效果
本申请提供的触控面板和触控装置中，触控面板包括沿第一方向延伸且并排排布的第一通道和第三通道，所述第三通道的中轴与相邻的所述第一通道的中轴之间的距离小于相邻的两条所述第一通道的中轴之间的距离，且所述第三通道沿垂直于所述第一方向的宽度等于所述第一通道沿垂直于所述第一方向的宽度，通过减小第三通道与相邻的第一通道之间的距离，使得第三通道的感应量增大，提高了边缘区域触控的精准度和线性度。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的触控面板的一种俯视结构示意图。
图2为本申请实施例提供的触控面板上触控单元的放大结构示意图。
图3为本申请实施例提供的触控面板的一种剖面结构示意图。
图4为本申请实施例提供的触控面板边缘区域触控感应量和线性度的变化曲线示意图。
图5为现有触控面板边缘区域触控感应量和线性度的变化曲线示意图。
图6为本申请实施例提供的触控面板的另一种俯视结构示意图。
图7为本申请实施例提供的触控面板的另一种剖面结构示意图。
图8为本申请实施例提供的触控装置的剖面结构示意图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。在图中，结构相似的单元是用以相同标号表示。在附图中，为了清晰理解和便于描述，夸大了一些层和区域的厚度。即附图中示出的每个组件的尺寸和厚度是任意示出的，但是本申请不限于此。
请参照图1至图3，图1为本申请实施例提供的触控面板的一种俯视结构示意图，图2为本申请实施例提供的触控面板上触控单元的放大结构示意图，图3为本申请实施例提供的触控面板的一种剖面结构示意图。所述触控面板100包括多条平行且沿第一方向X延伸的第一通道10和与所述第一通道10平行设置的第三通道20，所述第三通道20至少位于所述触控面板100的一侧边缘，以及多条平行且沿第二方向Y延伸的第二通道30和与所述第二通道30平行设置的第四通道40，所述第四通道40至少位于所述触控面板100的另一侧边缘。所述第一通道10和所述第三通道20用于给所述触控面板100提供驱动信号，所述第二通道30和第四通道40用于返回触摸感应信号。
需要说明的是，所述第一方向X为水平方向，所述第二方向Y为竖直方向，所述第一方向X和所述第二方向Y之间的夹角为90度，当然地，本申请不限于此，本申请的所述第一方向X也可为竖直方向，所述第二方向Y也可为水平方向，或所述第一方向X和所述第二方向Y之间的夹角还可为其他角度。
具体地，多条所述第一通道10位于所述触控面板100的中间区域，而所述第三通道20的数量为两条，两条所述第三通道20分别位于所述触控面板100的两个边缘区域，如此多条所述第一通道10位于两条所述第三通道20之间。当然地，本申请不限于此，本申请的所述第三通道20也可根据实际需求，设置为一条，该一条所述第三通道20位于所述触控面板100的一个边缘区域。
所述第三通道20的中轴与相邻的所述第一通道10的中轴之间的距离L2小于相邻的两条所述第一通道10的中轴之间的距离L1，以减小所述第三通道20与相邻的所述第一通道10之间的距离。具体而言，每相邻的两条所述第一通道10之间具有第一间隔，所述第三通道20与相邻的所述第一通道10之间具有第二间隔，所述第一间隔沿垂直于所述第一方向X的宽度大于所述第二间隔沿垂直于所述第一方向X的宽度。可选地，所述第一间隔沿垂直于所述第一方向X的宽度等于所述第二间隔沿垂直于所述第一方向X的宽度的两倍。
进一步地，所述第三通道10沿垂直于所述第一方向X的宽度等于所述第一通道10沿垂直于所述第一方向X的宽度，此时需保证所述第三通道20的中轴与相邻的所述第一通道10的中轴之间的距离L2大于相邻的两条所述第一通道10的中轴之间的距离L1的二分之一。具体而言，每一所述第一通道10包括两条间隔设置的第一驱动电极11，每一所述第三通道20包括一条第二驱动电极21，所述第一驱动电极11和所述第二驱动电极21同层设置，且每一所述第一通道10连接一条触控引线Trace，每一所述第三通道20也连接一条触控引线Trace。所述第二驱动电极21沿垂直于所述第一方向X的宽度D2大于所述第一驱动电极11沿垂直于所述第一方向X的宽度D1。可选地，所述第二驱动电极21沿垂直于所述第一方向X的宽度D2等于两条所述第一驱动电极11沿垂直于所述第一方向X的宽度D1之和。
需要说明的是，本申请中各通道的中轴是指各通道的对称中心线，各通道的电极关于该对称中心线对称，比如所述第一通道10中两条所述第一驱动电极11关于所述第一通道10的中轴对称。
进一步地，多条所述第二通道30位于所述触控面板100的中间区域，而所述第四通道40的数量为两条，两条所述第四通道40分别位于所述触控面板100的两个边缘区域，如此多条所述第二通道30位于两条所述第四通道40之间。当然地，本申请不限于此，本申请的所述第四通道40也可根据实际需求，设置为一条，该一条所述第四通道40位于所述触控面板100的一个边缘区域。另外需要说明的是，图1示出了三条所述第一通道10和三条所述第二通道30，但本申请不限于此，本申请的触控面板100还可包括更多或更少的所述第一通道10和所述第二通道30。
所述第四通道40的中轴与相邻的所述第二通道30的中轴之间的距离L4小于相邻的两条所述第二通道30的中轴之间的距离L3，以减小所述第四通道40与相邻的所述第二通道30之间的距离。具体而言每相邻的两条所述第二通道30之间具有第三间隔，所述第四通道40与相邻的所述第二通道30之间具有第四间隔。所述第三间隔沿垂直于所述第二方向Y的宽度大于所述第四间隔L4沿垂直于所述第二方向Y的宽度。可选地，所述第三间隔沿垂直于所述第二方向Y的宽度等于所述第四间隔沿垂直于所述第二方向Y的宽度的二倍。
进一步地，所述第四通道40沿垂直于所述第二方向Y的宽度等于所述第二通道30沿垂直于所述第二方向Y的宽度，此时需保证所述第四通道40的中轴与相邻的所述第二通道30的中轴之间的距离L4大于相邻的两条所述第二通道30的中轴之间的距离L3的二分之一。具体而言，每一所述第二通道30包括两条间隔设置的第一感应电极31，每一所述第四通道40包括一条第二感应电极41，所述第一感应电极31和所述第二感应电极41同层设置，且每一所述第二通道30连接一条触控引线Trace，每一所述第四通道40也连接一条触控引线Trace。所述第二感应电极41沿垂直于所述第二方向Y的宽度D4大于所述第一感应电极31沿垂直于所述第二方向Y的宽度D3。可选地，所述第二感应电极41沿垂直于所述第二方向Y的宽度D4等于两条所述第一感应电极31沿垂直于所述第二方向Y的宽度D3之和。
所述第一通道10、所述第三通道20均与对应的所述第二通道30和所述第四通道40纵横交错，使所述触控面板100划分为多个触控单元。具体地，所述第一通道10和所述第二通道30纵横交错形成第一触控单元TPU1，所述第三通道20与所述第二通道30纵横交错形成第一触控单元TPU2，所述第四通道40与所述第一通道10纵横交错形成第三触控单元TPU3，当然地，在所述触控面板100相邻的两个边缘交界区域，所述第三通道20与所述第四通道40纵横交错形成第四触控单元TPU4。其中所述第一触控单元TPU2的面积和所述第三触控单元TPU3的面积均小于所述第一触控单元TPU1的面积，当然显而易见地，所述第四触控单元TPU4的面积最小，小于其他三个触控单元的面积。
更具体地，所述第一触控单元TPU1包括两条所述第一驱动电极11和两条所述第一感应电极31，所述第一驱动电极11和所述第一感应电极31位于不同层。所述第一触控单元TPU2包括一条所述第二驱动电极21和两条所述第一感应电极31，所述第二驱动电极21和所述第一感应电极31位于不同层。所述第三触控单元TPU3包括一条所述第二感应电极41和两条所述第一驱动电极11，所述第二感应电极41和所述第一驱动电极11位于不同层。所述第四触控单元TPU4包括一条所述第二驱动电极21和一条所述第二感应电极41，所述第二驱动电极21和所述第二感应电极41位于不同层。
可选地，所述触控面板100还包括衬底50以及层叠设置在所述衬底50上第一金属层、第二金属层、第一绝缘层51，所述第一金属层图案化形成所述第一驱动电极11和所述第二驱动电极21，图3仅示意出了所述第一驱动电极11。所述第二金属层图案化形成所述第一感应电极31和所述第二感应电极41。所述第一绝缘层51位于所述第一金属层和所述第二金属层之间。
需要说明的是，本申请中的“同层设置”是指在制备工艺中，将相同材料形成的膜层进行图案化处理得到至少两个不同的结构，则所述至少两个不同的结构同层设置。比如，本实施例的所述第一驱动电极11与所述第二驱动电极21由同一金属膜层进行图案化处理后得到，则所述第一驱动电极11与所述第二驱动电极21同层设置。
本实施例中，通过把所述触控面板100边缘区域的所述第三通道20和所述第四通道40分别与面内的所述第一通道10和所述第二通道30差异化设计，使所述触控面板100边缘区域的触控单元的面积小于面内区域的触控单元的面积，并增大所述触控面板100边缘区域的触控单元的所述第二驱动电极21或所述第二感应电极41的宽度，以使得所述触控面板100边缘区域的触控单元内驱动电极与感应电极的重叠面积等于所述触控面板100面内区域的触控单元内的驱动电极与感应电极的重叠面积，比如在所述第一触控单元TPU2内所述第二驱动电极21与所述第一感应电极31的重叠面积等于所述第一触控单元TPU1内所述第一驱动电极11和所述第一感应电极31的重叠面积。
如此，通过减小所述触控面板100边缘区域的触控单元的面积，使得所述第三通道20与相邻的第一通道10的距离减小，所述第四通道40与相邻的所述第二通道30的距离减小，而所述第三通道20内的所述第二驱动电极21的宽度D2与所述第一通道10内的两条所述第一驱动电极11的宽度D1之和接近或相等，所述第四通道40内的所述第二感应电极41的宽度D4与所述第二通道30内的两条所述第一感应电极31的宽度D3之和接近或相等，当然地，在保证边缘区域的触控单元面积不增加的情况下，能使所述第三通道20内的所述第二驱动电极21的宽度D2大于所述第一通道10内的两条所述第一驱动电极11的宽度D1之和更好。这样在保证边缘区域触控单元的触控感应量的同时，由于边缘区域的触控单元距离面内触控单元的距离变小，使得与边缘区域相邻的通道的触控感应量增大，如此在计算触摸位置坐标时，能够更准确的计算出来，大大提高了触控的精准度和线性度。
下面将通过仿真来说明所述触控面板100边缘区域触控感应量以及线性度的变化：
具体地，请结合参照图1至图5，图4为本申请实施例提供的触控面板边缘区域触控感应量和线性度的变化曲线示意图，图5为现有触控面板边缘区域触控感应量和线性度的变化曲线示意图。本申请以所述触控面板100的感应通道为例说明，并定义所述触控面板100边缘区域的所述第四通道40为第一通道N，与所述第四通道40相邻的两个所述第二通道30分别为第二通道N+1和第三通道N+2，所述第四通道40内的所述第二感应电极41的宽度D4等于所述第二通道30内两条第一感应电极31的宽度D3之和，且所述第三触控单元TPU3的面积等于所述第一触控单元TPU1面积的一半，如图4中（a）示例性示出的，所述第三触控单元TPU3和所述第一触控单元TPU1的长度相同，所述第三触控单元TPU3的宽度为2，所述第一触控单元TPU1的宽度为4。
当触控笔200从所述第一通道N的边缘逐渐向所述第二通道N+1和所述第三通道N+2滑动时，随着所述触控笔200滑动距离的变化，所述第一通道N、所述第二通道N+1以及所述第三通道N+2的触控感应量的变化曲线如图4中（b）所示，其中图4中（b）的横坐标表示所述触控笔200在所述触控单元的宽度方向上滑动的距离，图4中（b）的纵坐标表示触控感应量。另外，图4中（c）示出了本申请实施例触控面板100的触控线性度曲线M1与理论线性度曲线M的对比示意图。
而现有触控面板的各个触控单元的大小是相同的，且每个触控单元内的触控电极设置也是相同的，如图5中（a）示意出的，同样定义触控面板边缘区域的通道为第一通道n，与所述第一通道n相邻的两个通道为第二通道n+1和第三通道n+2。当触控笔200从所述第一通道n的边缘逐渐向所述第二通道n+1和所述第三通道n+2滑动时，随着所述触控笔200滑动距离的变化，所述第一通道n、所述第二通道n+1以及所述第三通道n+2的触控感应量的变化曲线如图5中（b）所示，其中图5中（b）的横坐标表示所述触控笔200在所述触控单元的宽度方向上滑动的距离，图5中（b）的纵坐标表示触控感应量。另外，图5中（c）示出了现有触控面板的触控线性度曲线M2与理论线性度曲线M的对比示意图。
通过对比图4中（b）所示的各通道感应量变化曲线和5中（b）所示的各通道感应量变化曲线可知，本申请实施例的触控面板100，当触控笔200在边缘区域的第一通道N滑动时，由于所述第一通道N与所述第二通道N+1之间的距离变小，使得第二通道N+1的感应量变化比较明显，感应量有很大程度的提升，与第三通道N+2的感应量差异增大，如此在计算触控笔200的触摸位置时，使得计算出来的位置更为精准，提高了所述触控面板100边缘区域触控的精准度。
另外，通过对比图4中（c）的线性度变化曲线与图5中（c）的线性度变化曲线可知，本申请实施例的触控面板100，当触控笔200在边缘区域的第一通道N滑动时，由于第一通道N对应的第三触控单元TPU3的面积减小，相对延缓了偏差出现的距离，使得所述线性度曲线M1相较于理论线性度曲线M变的平缓，提高了所述触控面板100边缘区域的触控线性度。
在一种实施例中，请参照图1至图7，图6为本申请实施例提供的触控面板的另一种俯视结构示意图，图7为本申请实施例提供的触控面板的另一种剖面结构示意图。与上述实施例不同的是，驱动电极和感应电极不同层设置，具体地，所述触控面板101还包括第三金属层、第二绝缘层52以及桥接层，所述第三金属层图案化形成所述第一驱动电极11、所述第二驱动电极21、所述第一感应电极31以及所述第二感应电极41。所述第二绝缘层52覆于所述第三金属层上。所述桥接层设置于所述第二绝缘层52远离所述第三金属层的一侧，包括多个桥接电极60。
其中，所述第一驱动电极11、所述第二驱动电极21、所述第一感应电极31以及所述第二感应电极41均由图案化的电极块电连接形成，且所述第一驱动电极11的电极块和所述第二驱动电极21的电极块分别通过不同的所述桥接电极60桥接，或者所述第一感应电极31的电极块和所述第二感应电极41的电极块分别通过不同的所述桥接电极60桥接，本申请实施例以所述第一驱动电极11的电极块和所述第二驱动电极21的电极块分别通过不同的所述桥接电极60桥接为例说明。
可以理解的是，由于所述驱动电极（包括第一驱动电极11和第二驱动电极21）与所述感应电极（包括第一感应电极31和第二感应电极41）同层设置，且所述驱动电极和所述感应电极之间需要绝缘设置，故在所述驱动电极和所述感应电极交叠的位置通过设置桥接层来避免所述驱动电极和所述感应电极接触。其中所述驱动电极的电极块和所述感应电极的电极块均可设置为菱形等其他规则或不规则图形，当然地，由于所述触控面板101边沿区域的第二感应电极41和第二驱动电极21与面内的第一感应电极31和第一驱动电极11的宽度D1不同，使得边缘区域的第二感应电极41的电极块与第一感应电极31的电极块不同，第二驱动电极21的电极块与第一驱动电极11的电极块不同，如图6所示，另外需要说明的是，图6仅示出了所述触控面板101部分边缘区的设计，其他边缘区域可参照设计。其他说明请参照上述实施例，在此不再赘述。
基于同一发明构思，本申请还提供一种触控装置，请结合参照图1至图8，图8为本申请实施例提供的触控装置的剖面结构示意图。所述触控装置1000包括显示面板300以及上述实施例其中之一的触控面板100，本实施例以触控面板100为例说明，所述触控面板100位于所述显示面板300的出光方向上。
具体地，所述显示面板300包括OLED显示面板等，所述OLED显示面板包括驱动电路层301、位于驱动电路层301上的发光功能层302以及位于发光功能层302上的封装层303，所述触控面板100直接制备在所述封装层303上。当然地，本申请不限于此，本申请的触控面板100也可外挂在所述OLED显示面板的出光方向上。
根据上述实施例可知：
本申请提供一种触控面板和触控装置，触控面板包括沿第一方向延伸且并排排布的第一通道和第三通道，所述第三通道的中轴与相邻的所述第一通道的中轴之间的距离小于相邻的两条所述第一通道的中轴之间的距离，且所述第三通道沿垂直于所述第一方向的宽度等于所述第一通道沿垂直于所述第一方向的宽度，通过减小第三通道与相邻的第一通道之间的距离，使得第三通道的感应量增大，提高了边缘区域触控的精准度和线性度。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
以上对本申请实施例进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (20)

  1. 一种触控面板，其包括：
    多条平行且沿第一方向延伸的第一通道；
    多条平行且沿第二方向延伸的第二通道；
    与所述第一通道平行设置的第三通道，所述第三通道至少位于所述触控面板的一侧边缘；
    其中，所述第三通道的中轴与相邻的所述第一通道的中轴之间的距离小于相邻的两条所述第一通道的中轴之间的距离，且所述第三通道沿垂直于所述第一方向的宽度等于所述第一通道沿垂直于所述第一方向的宽度。
  2. 根据权利要求1所述的触控面板，其中，每一所述第一通道包括两条间隔设置的第一驱动电极，每一所述第三通道包括一条第二驱动电极，所述第二驱动电极沿垂直于所述第一方向的宽度大于所述第一驱动电极沿垂直于所述第一方向的宽度。
  3. 根据权利要求2所述的触控面板，其中，所述第二驱动电极沿垂直于所述第一方向的宽度等于两条所述第一驱动电极沿垂直于所述第一方向的宽度之和。
  4. 根据权利要求2所述的触控面板，其中，所述第三通道的中轴与相邻的所述第一通道的中轴之间的距离大于相邻的两条所述第一通道的中轴之间的距离的二分之一。
  5. 根据权利要求2所述的触控面板，其中，还包括与所述第二通道平行设置的第四通道，所述第四通道至少位于所述触控面板的另一侧边缘；其中，所述第四通道的中轴与相邻的所述第二通道的中轴之间的距离小于相邻的两条所述第二通道的中轴之间的距离，且所述第四通道沿垂直于所述第二方向的宽度等于所述第二通道沿垂直于所述第二方向的宽度。
  6. 根据权利要求5所述的触控面板，其中，每一所述第二通道包括两条间隔设置的第一感应电极，每一所述第四通道包括一条第二感应电极，所述第二感应电极沿垂直于所述第二方向的宽度大于所述第一感应电极沿垂直于所述第二方向的宽度。
  7. 根据权利要求6所述的触控面板，其中，所述第二感应电极沿垂直于所述第二方向的宽度等于两条所述第一感应电极沿垂直于所述第二方向的宽度之和。
  8. 根据权利要求6所述的触控面板，其中，所述第四通道的中轴与相邻的所述第二通道的中轴之间的距离大于相邻的两条所述第二通道的中轴之间的距离的二分之一。
  9. 根据权利要求6所述的触控面板，其中，所述触控面板还包括：
    第一金属层，图案化形成所述第一驱动电极和所述第二驱动电极；
    第二金属层，图案化形成所述第一感应电极和所述第二感应电极；
    第一绝缘层，位于所述第一金属层和所述第二金属层之间。
  10. 根据权利要求6所述的触控面板，其中，所述触控面板还包括：
    第三金属层，图案化形成所述第一驱动电极、所述第二驱动电极、所述第一感应电极以及所述第二感应电极；
    第二绝缘层，覆于所述第三金属层上；
    桥接层，设置于所述第二绝缘层远离所述第三金属层的一侧，包括多个桥接电极；
    其中，所述第一驱动电极、所述第二驱动电极、所述第一感应电极以及所述第二感应电极均由图案化的电极块电连接形成，且所述第一驱动电极的电极块和所述第二驱动电极的电极块分别通过不同的所述桥接电极桥接，或者所述第一感应电极的电极块和所述第二感应电极的电极块分别通过不同的所述桥接电极桥接。
  11. 一种触控装置，其包括显示面板以及触控面板，所述触控面板位于所述显示面板的出光方向上，所述触控面板包括：
    多条平行且沿第一方向延伸的第一通道；
    多条平行且沿第二方向延伸的第二通道；
    与所述第一通道平行设置的第三通道，所述第三通道至少位于所述触控面板的一侧边缘；
    其中，所述第三通道的中轴与相邻的所述第一通道的中轴之间的距离小于相邻的两条所述第一通道的中轴之间的距离，且所述第三通道沿垂直于所述第一方向的宽度等于所述第一通道沿垂直于所述第一方向的宽度。
  12. 根据权利要求11所述的触控装置，其中，每一所述第一通道包括两条间隔设置的第一驱动电极，每一所述第三通道包括一条第二驱动电极，所述第二驱动电极沿垂直于所述第一方向的宽度大于所述第一驱动电极沿垂直于所述第一方向的宽度。
  13. 根据权利要求12所述的触控装置，其中，所述第二驱动电极沿垂直于所述第一方向的宽度等于两条所述第一驱动电极沿垂直于所述第一方向的宽度之和。
  14. 根据权利要求12所述的触控装置，其中，所述第三通道的中轴与相邻的所述第一通道的中轴之间的距离大于相邻的两条所述第一通道的中轴之间的距离的二分之一。
  15. 根据权利要求12所述的触控装置，其中，所述触控面板还包括与所述第二通道平行设置的第四通道，所述第四通道至少位于所述触控面板的另一侧边缘；其中，所述第四通道的中轴与相邻的所述第二通道的中轴之间的距离小于相邻的两条所述第二通道的中轴之间的距离，且所述第四通道沿垂直于所述第二方向的宽度等于所述第二通道沿垂直于所述第二方向的宽度。
  16. 根据权利要求15所述的触控装置，其中，每一所述第二通道包括两条间隔设置的第一感应电极，每一所述第四通道包括一条第二感应电极，所述第二感应电极沿垂直于所述第二方向的宽度大于所述第一感应电极沿垂直于所述第二方向的宽度。
  17. 根据权利要求16所述的触控装置，其中，所述第二感应电极沿垂直于所述第二方向的宽度等于两条所述第一感应电极沿垂直于所述第二方向的宽度之和。
  18. 根据权利要求16所述的触控装置，其中，所述第四通道的中轴与相邻的所述第二通道的中轴之间的距离大于相邻的两条所述第二通道的中轴之间的距离的二分之一。
  19. 根据权利要求16所述的触控装置，其中，所述触控面板还包括：
    第一金属层，图案化形成所述第一驱动电极和所述第二驱动电极；
    第二金属层，图案化形成所述第一感应电极和所述第二感应电极；
    第一绝缘层，位于所述第一金属层和所述第二金属层之间。
  20. 根据权利要求16所述的触控装置，其中，所述触控面板还包括：
    第三金属层，图案化形成所述第一驱动电极、所述第二驱动电极、所述第一感应电极以及所述第二感应电极；
    第二绝缘层，覆于所述第三金属层上；
    桥接层，设置于所述第二绝缘层远离所述第三金属层的一侧，包括多个桥接电极；
    其中，所述第一驱动电极、所述第二驱动电极、所述第一感应电极以及所述第二感应电极均由图案化的电极块电连接形成，且所述第一驱动电极的电极块和所述第二驱动电极的电极块分别通过不同的所述桥接电极桥接，或者所述第一感应电极的电极块和所述第二感应电极的电极块分别通过不同的所述桥接电极桥接。
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