WO2017161719A1 - 一种触控显示基板和触控显示装置 - Google Patents

一种触控显示基板和触控显示装置 Download PDF

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Publication number
WO2017161719A1
WO2017161719A1 PCT/CN2016/086990 CN2016086990W WO2017161719A1 WO 2017161719 A1 WO2017161719 A1 WO 2017161719A1 CN 2016086990 W CN2016086990 W CN 2016086990W WO 2017161719 A1 WO2017161719 A1 WO 2017161719A1
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WIPO (PCT)
Prior art keywords
touch
electrode
touch electrode
electrodes
display substrate
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Application number
PCT/CN2016/086990
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English (en)
French (fr)
Inventor
宋洁
沈奇雨
赵娜
许徐飞
史高飞
Original Assignee
京东方科技集团股份有限公司
合肥京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 合肥京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/531,072 priority Critical patent/US10296118B2/en
Publication of WO2017161719A1 publication Critical patent/WO2017161719A1/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
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
    • 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
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING; 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
    • G06F3/0448—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; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
    • G—PHYSICS
    • G06—COMPUTING; 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
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • G06F3/04184—Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a touch display substrate and a touch display device.
  • the touch display device realizes the touch function mainly by a touch screen superimposed on the surface of the display panel.
  • the overall structure of the touch display device having the above structure is relatively thick, and the user's demand for thinning and thinning of the touch display device cannot be satisfied.
  • the prior art provides a touch display device formed by integrating a touch electrode having a touch function into a display panel.
  • the above touch display device includes a plurality of common electrode blocks arranged in an array.
  • the common electrode block is used as a common electrode in the display period to realize a display function, and is used as a touch electrode in a touch period to implement a touch function.
  • the touch electrode is a self-capacitance electrode.
  • the touch electrode includes a drive electrode. And receiving electrodes.
  • the inventors of the present application have found that in the touch display device having the above structure, the overlapping areas of the adjacent two touch electrodes are small, so that the user's touch is formed on the adjacent two touch electrodes.
  • the influence of the capacitor is small, which makes the sensitivity of the touch display device low.
  • An object of the present invention is to provide a touch display substrate and a touch display device for improving the sensitivity of the touch display device.
  • the present invention provides a touch display substrate.
  • the method includes a plurality of touch electrodes, and the plurality of touch electrodes are divided into at least one touch electrode pair, each of which is
  • Each of the touch electrode pairs includes an adjacent first touch electrode and a second touch electrode
  • the first touch electrode includes a plurality of bent portions
  • the second touch electrode includes a plurality of bent portions.
  • the corresponding bent portion of the first touch electrode and the corresponding bent portion of the second touch electrode are positionally matched.
  • the touch display substrate provided by the present invention has the above structure, wherein the touch display substrate comprises a plurality of touch electrodes divided into at least one touch electrode pair, and each touch electrode pair includes an adjacent first
  • the first touch electrode includes a plurality of bent portions
  • the second touch electrode includes a plurality of bent portions
  • the first touch electrodes are correspondingly bent
  • the position of the corresponding portion of the second touch electrode is matched to the first touch electrode and the second touch electrode of the present invention.
  • the stacking area has a large influence on the capacitance formed by the first touch electrode and the second touch electrode, so that when the touch display substrate is applied to the touch display device, the touch display can be effectively improved.
  • the sensitivity of the device is a large influence on the capacitance formed by the first touch electrode and the second touch electrode, so that when the touch display substrate is applied to the touch display device, the touch display can be effectively improved.
  • the present invention further provides a touch display device including the touch display substrate described above.
  • the touch display device includes the touch display substrate as described above, so that the touch display device has the same beneficial effects as the touch display substrate, and details are not described herein.
  • FIG. 1 is a plan view 1 of a pair of touch electrodes in an embodiment of the present invention.
  • FIG. 2 is a plan view 2 of a pair of touch electrodes in an embodiment of the present invention.
  • FIG. 3 is a plan view 3 of a pair of touch electrodes in an embodiment of the present invention.
  • FIG. 4 is a plan view 4 of a pair of touch electrodes in an embodiment of the present invention.
  • FIG. 5 is a cross-sectional view of an array substrate in an embodiment of the present invention.
  • Figure 6 is a cross-sectional view showing a color filter substrate in an embodiment of the present invention.
  • FIG. 7 is a cross-sectional view of a touch display device in accordance with an embodiment of the present invention.
  • FIG. 8 is a diagram showing the driving principle of the touch display device in the self-capacitance when driving according to the embodiment of the present invention Sequence diagram
  • FIG. 9 is a timing chart of driving when the touch control principle of the touch display device is mutual capacitance according to an embodiment of the present invention.
  • 5-color filter layer A-first strip structure; B-second strip structure.
  • Embodiments of the present invention provide a touch display substrate.
  • the touch display substrate includes a plurality of touch electrodes, and the plurality of touch electrodes are divided into at least one touch electrode pair.
  • Each of the touch electrode pairs includes an adjacent first touch electrode and a second touch electrode, the first touch electrode includes a plurality of bent portions, and the second touch electrode includes a plurality of bends
  • the corresponding bent portion of the first touch electrode and the corresponding bent portion of the second touch electrode are matched in position.
  • the bent portion may also be a curved portion
  • the first touch electrode includes a first bent portion and/or a first bent portion and the second touch electrode 12 includes a second bent portion. And/or the second bending portion will be described as an example.
  • each of the touch electrode pairs 10 includes an adjacent first touch electrode 11 and a second touch electrode 12 , and the first touch electrode 11 includes a first bent portion and/or a first curved portion, the second touch electrode 12 includes a second bent portion and/or a second curved portion, and the second bent portion corresponds to the position of the first bent portion, and the second curved portion and the first curved portion The location corresponds.
  • the touch display substrate provided by the embodiment of the present invention has the above structure.
  • the touch display substrate includes a plurality of touch electrodes divided into at least one touch electrode pair 10, and each touch electrode pair 10 includes a phase.
  • the first touch electrode 11 and the second touch electrode 12 are adjacent to each other, and the first touch electrode 11 includes the first
  • the second touch electrode 12 includes a second bent portion and/or a second curved portion, and the second bent portion corresponds to the first bent portion position, and the second curved portion The portion corresponds to the position of the first curved portion.
  • the first touch electrode 11 and the second touch electrode 12 in the embodiment of the present invention have a large positive overlapping area, so that the user touches the first touch electrode 11 and the second
  • the influence of the capacitance formed by the touch electrode 12 is large, so that when the touch display substrate is applied to the touch display device, the sensitivity of the touch display device can be effectively improved.
  • the touch display substrate having the above structure, only the signals input to the respective touch electrodes need to be changed, so that the first touch electrodes 11 and the second touch electrodes in each of the touch electrode pairs 10 can be made.
  • 12 is a self-capacitance electrode, or as shown in FIG. 3, the first touch electrode 11 in each touch electrode pair 10 is a drive electrode Tx, and the second touch electrode 12 is a receive electrode Rx. Therefore, the touch The application of the display substrate is more flexible.
  • the touch display substrate can be applied to the touch principle.
  • the self-capacitance touch display device as shown in FIG. 3, when the first touch electrode 11 in each touch electrode pair 10 is the drive electrode Tx and the second touch electrode 12 is the receive electrode Rx, the touch The control display substrate can be applied to a touch display device in which the touch principle is mutual capacitance.
  • the size of the area occupied by each touch electrode pair 10 can be the same as or similar to the size of one touch point (usually 3 mm ⁇ 3 mm), so that the manufacturing method of the touch electrode is simple. Moreover, the requirements of the touch driving circuit are low; or the size of the area occupied by the adjacent plurality of touch electrode pairs 10 is the same as or similar to the size of one touch point, so as to improve the precision of the touch display device and further improve The sensitivity of the touch display device.
  • first touch electrode 11 and the second touch electrode 12 in the touch electrode pair 10 is exemplified in the following embodiments of the present invention. It should be noted that the specific structures of the first touch electrode 11 and the second touch electrode 12 are not limited thereto. Other specific structures can be obtained by those skilled in the art based on the following contents, and details are not described herein again.
  • the first touch electrode 11 and the second touch electrode 12 are both spiral shapes, and the first touch electrodes 11 and the second touch electrodes 12 are nested with each other.
  • a person skilled in the art can set the number of turns of the first touch electrode 11 and the second touch electrode 12 to each other according to actual conditions.
  • the actual situation may be: the size of the touch electrode pair 10, the width of the first touch electrode 11 and the second touch electrode 12, and the sensitivity of the touch display device.
  • the overlapping area of the first touch electrode 11 and the second touch electrode 12 is much larger than the overlapping area of the adjacent two touch electrodes in the prior art, thereby making the embodiment of the present invention even
  • the size of the area occupied by the pair of touch electrodes 10 is larger than the area occupied by the adjacent two touch electrodes in the prior art, and the touch display device still has higher sensitivity. Therefore, in the embodiment of the present invention, while the touch display device has high sensitivity, the size of the area occupied by the touch electrode pair 10 is smaller than that of the adjacent two touch electrodes in the prior art. The size is large to reduce the number of wires used to provide signals for the touch electrodes, thereby reducing the requirements on the touch driving circuit and the difficulty of wiring.
  • the larger positive overlapping areas of the first touch electrode 11 and the second touch electrode 12 described in the present specification refer to the first touch electrodes 11 and the first planar wiring patterns.
  • the first touch electrode 11 and the second touch electrode 12 may be in a spiral shape.
  • the back-shaped overlapping wiring is designed such that the touch electrodes are arranged in a single-layer wiring structure.
  • the first touch electrode 11 may have a square spiral shape
  • the second touch electrode 12 also has a square spiral shape
  • the first touch electrode 11 and the second touch electrode 12 are nested with each other.
  • the first touch electrode 11 has a circular spiral shape
  • the second touch electrode 12 also has a circular spiral shape
  • the first touch electrode 11 and the second touch electrode 12 are embedded in each other. Set of overlaps.
  • the first touch electrode 11 and the second touch electrode 12 are both in a square spiral shape, and the first touch electrode 11 and the second touch electrode 12 are nested with each other, the first touch electrode 11 and the first The touch electrode pairs 10 formed by the two touch electrodes 12 have a rectangular shape, and the touch electrode pairs 10 can be closely arranged to cover the entire touch display substrate. Therefore, in the embodiment of the present invention, as shown in FIG. 1 , the first touch electrode 11 has a square spiral shape, and the second touch electrode 12 also has a square spiral shape, and the first touch electrode 11 and the second touch The electrodes 12 are nested one on another.
  • the first touch electrode 11 and the second touch electrode 12 each include a plurality of first strip structures A and a plurality of second strip structures B extending in a direction perpendicular to each other, and the first touch electrodes 11 include a plurality of The first strip structure A and the plurality of second strip structures B are alternately connected end to end to form a square spiral shape, and the second touch electrodes 12 include a plurality of first strip structures A and a plurality of second strip structures B is alternately connected end to end to form a square spiral shape.
  • the width W1 of the first strip structure A included in the first touch electrode 11 and the first strip structure A included in the second touch electrode 12 are width
  • the width W2 is the same
  • the width W1' of the second strip structure B included in the first touch electrode 11 and the width W2' of the second strip structure B included in the second touch electrode 12 are the same, so that the touch electrodes are
  • the design method is simple, and the touch display device has the same sensitivity at different positions in the row direction, and the touch display device has the same sensitivity at different positions in the column direction.
  • the first touch electrode 11 includes The width W1 of the strip structure A and the width W2 of the first strip structure A included in the second touch electrode 12 may have a certain correspondence with the sub-pixels 2, so that the touch electrodes can be reused in the display period.
  • the structure of the touch display device is simplified. For example, as shown in FIG. 4, the width W1 of the first strip structure A included in the first touch electrode 11 and the width W2 of the first strip structure A included in the second touch electrode 12 are all in the column direction.
  • the total length of the at least one sub-pixel 2 is sequentially arranged, and the distance between the first strip-shaped structure A of the first touch electrode 11 and the first strip-shaped structure A of the second touch electrode 12 is two adjacent The spacing between the sub-pixels 2 is performed.
  • the width W1 of the first strip structure A and the width W2 of the first strip structure A included in the second touch electrode 12 are the first touch electrodes.
  • the influence of the overlapping area of the second touch electrode 12 and the size of the area occupied by the touch electrode pair 10 is affected.
  • the width W1 of the first strip-shaped structure A and the width W2 of the first strip-shaped structure A included in the second touch electrode 12 are smaller, the first touch electrode 11 and the second touch electrode
  • the width W1 of the first strip structure A included in the first touch electrode 11 and the width W2 of the first strip structure A included in the second touch electrode 12 are two sub-pixels arranged in the column direction. The total length of 2.
  • the first touch electrode 11 includes The width W1' of the two strip structure B and the width W2' of the second strip structure B included in the second touch electrode 12 may It has a certain correspondence with the sub-pixel 2. For example, as shown in FIG. 4, as shown in FIG. 4,
  • the width W1' of the second strip structure B included in the first touch electrode 11 and the width W2' of the second strip structure B included in the second touch electrode 12 are all along The total width of the at least one sub-pixel 2 in the row direction, and the spacing between the second strip structure B included in the first touch electrode 11 and the second strip structure B included in the second touch electrode 12 is The spacing between adjacent two columns of sub-pixels 2.
  • the selection is as shown in FIG.
  • the width W1 ′ of the second strip structure B included in the first touch electrode 11 and the width W2 ′ of the second strip structure B included in the second touch electrode 12 are both two sub-pixels 2 arranged in the row direction. The total width.
  • the touch display substrate in the embodiment of the present invention can be used as an array substrate or a color film substrate when applied to a touch display device.
  • the touch electrode 1 is located on a side of the array substrate facing the color filter substrate.
  • the touch electrode 1 is reused as a common electrode during the display period to simplify the structure of the array substrate, reduce the number of patterning processes when fabricating the array substrate, and reduce the difficulty and cost of fabricating the array substrate. Improve the yield of the array substrate.
  • the problem of a decrease in the aperture ratio caused when the opaque metal layer is formed on the array substrate to form the touch electrode 1 can be avoided.
  • a plurality of sub-pixels 2 arranged in an array are further disposed on the array substrate.
  • a thin film transistor 21 and a pixel electrode 22 are provided in each of the sub-pixels 2.
  • An insulating layer 3 is disposed on the thin film transistor 21 and the pixel electrode 22, and the touch electrode 1 is disposed on the insulating layer 3.
  • the portion of the touch electrode 1 located in the sub-pixel 2 has a slit.
  • the touch electrode 1 is used as a common electrode during the display period.
  • the touch display device including the array substrate has a display mode of HADS (High Transmittance Advanced Super-Dimensional Field Conversion Technology) display device. Has a better display effect.
  • HADS High Transmittance Advanced Super-Dimensional Field Conversion Technology
  • the touch electrode 1 is located on a side of the color film substrate facing the array substrate. Similarly, in the embodiment of the present invention, the touch electrode 1 is preferably used as a common electrode during the display period.
  • a black matrix 4 and a color filter layer 5 are further disposed on the color filter substrate, and the touch electrodes 1 are disposed on the black matrix 4 and the color filter layer 5 .
  • the color filter layer 5 includes a red area, a green area, and a blue area.
  • an embodiment of the present invention further provides a touch display device, where the touch display device includes the above The touch display substrate.
  • the touch display substrate is an array substrate, as shown in FIG. 7
  • the touch display device further includes a color filter substrate opposite to the array substrate, and a liquid crystal molecular layer and a spacer between the two.
  • the structure of the array substrate can be as shown in FIG. 5, and there is no need to provide a common electrode on the color filter substrate.
  • the touch display substrate is a color film substrate
  • the touch display device further includes an array substrate opposite to the color filter substrate, and a liquid crystal molecular layer and a spacer between the two.
  • the structure of the color filter substrate can be as shown in FIG. 6, and the insulating layer and the common electrode need not be disposed on the array substrate.
  • the array substrate necessarily includes vertical and horizontal interlaced gate lines and data lines to have a display function.
  • the touch display device includes the touch display substrate as described above, so that the touch display device has the same beneficial effects as the touch display substrate, and details are not described herein.
  • the following two embodiments of the touch display device are described in detail in the self-capacitance and mutual-capacity driving methods. Both driving methods are described by taking the touch electrode as a common electrode for a display period.
  • the driving method includes: dividing each frame time into a display time period (shown as Display in FIG. 8 ) and touch The time period (shown as Touch in Figure 8).
  • the common electrode signal (shown as Vcom in FIG. 8) is applied to the touch electrode during the display period.
  • the common electrode signal may be a DC signal.
  • the vertical scan signal (shown as SYNC signal in Figure 8) is at a high level, the first gate line (shown as Gate 1 in Figure 8) to the nth gate line (shown in Figure 8) For Gate n), the display data signal is applied on the data line (shown as Data Signal in Figure 8).
  • the touch driving circuit applies a touch signal to all the touch electrodes (shown as Touch Signal in FIG. 8), and determines the touch position by detecting a change in the capacitance value of each touch electrode.
  • the touch detection signal is a periodic pulse signal.
  • each gate line and each data line are loaded with the same signal as the touch signal waveform, thereby effectively preventing the gate line and the data line from being loaded.
  • the influence of the signal on the touch signal loaded on the touch electrode further improves the sensitivity of the touch display device, reduces the power consumption of the touch display device, and improves the touch performance of the touch display device.
  • the method includes dividing each frame time into a display time period (shown as Display in FIG. 9) and a touch time period (shown as Touch in FIG. 9).
  • a common electrode signal is applied to all of the touch electrodes during the display period.
  • the common electrode signal may be a direct current signal.
  • the vertical scan signal shown as SYNC signal in FIG. 9 is at a high level, and the first gate line (shown as Gate 1 in FIG. 9) to the nth gate line (shown in FIG. 9) For Gate n), the display data signal is applied on the data line (shown as Data Signal in Figure 9).
  • driving signals are sequentially applied to the driving electrodes (shown as TX1 to TXN in FIG. 9) through the touch driving circuit, and the sensing electrodes are alternately applied to the receiving electrodes (represented as RX1 and RX2 in FIG. 9).
  • the signal is determined by detecting a change in the sensing signal on the receiving electrode.
  • the drive signal and the sense signal may both be periodic pulse signals.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
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  • Position Input By Displaying (AREA)
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Abstract

本发明公开了一种触控显示基板和触控显示装置，涉及显示技术领域，解决了触控显示装置的灵敏度不高的技术问题。该触控显示基板包括多个触控电极，所述多个触控电极分为至少一个触控电极对，每个所述触控电极对均包括相邻的第一触控电极和第二触控电极，所述第一触控电极包括第一弯折部和/或第一弯曲部，所述第二触控电极包括第二弯折部和/或第二弯曲部，且所述第二弯折部与所述第一弯折部位置相对应，所述第二弯曲部与所述第一弯曲部位置相对应。本发明中的触控显示基板应用于触控显示装置中。

Description

一种触控显示基板和触控显示装置
本申请要求了2016年3月21日提交的、申请号为201610162059.x、发明名称为“一种触控显示基板和触控显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及显示技术领域，尤其涉及一种触控显示基板和触控显示装置。
背景技术
目前，触控显示装置主要通过叠加在在显示面板的表面上的触摸屏来实现触控功能。但具有上述结构的触控显示装置的整体结构较厚，无法满足用户对触控显示装置的轻薄化需求。
为了使触控显示装置更轻薄，现有技术中提供了一种将具有触控功能的触控电极集成在显示面板内而形成的触控显示装置。示例性地，上述触控显示装置包括阵列排布的多个公共电极块。该公共电极块在显示时间段内用作公共电极以实现显示功能，在触控时间段内复用作触控电极以实现触控功能。示例性地，当上述触控显示装置的触控原理为自电容方式时，触控电极为自电容电极，当上述触控显示装置的触控原理为互电容方式时，触控电极包括驱动电极和接收电极。
然而本申请的发明人发现，在具有上述结构的触控显示装置中，相邻两个触控电极的正对交叠面积较小，使得用户的触摸对相邻的两个触控电极形成的电容的影响较小，进而使得触控显示装置的灵敏度不高。
发明内容
本发明的目的在于提供一种触控显示基板和触控显示装置，用于提高触控显示装置的灵敏度。
为达到上述目的，本发明提供一种触控显示基板，
包括多个触控电极，所述多个触控电极分为至少一个触控电极对，每个所 述触控电极对均包括相邻的第一触控电极和第二触控电极，所述第一触控电极包括多个弯折部，所述第二触控电极包括多个弯折部，所述第一触控电极的相应弯折部与所述第二触控电极的相应弯折部在位置上相匹配。
本发明提供的触控显示基板具有如上所述的结构，由于触控显示基板包括的多个触控电极分为至少一个触控电极对，且每个触控电极对均包括相邻的第一触控电极和第二触控电极，，所述第一触控电极包括多个弯折部，所述第二触控电极包括多个弯折部，所述第一触控电极的相应弯折部与所述第二触控电极的相应弯折部位置上相匹配，从而使得与现有技术相比，本发明中的第一触控电极和第二触控电极具有较大的正对交叠面积，使得用户的触摸对第一触控电极和第二触控电极形成的电容的影响较大，从而使得将该触控显示基板应用于触控显示装置中时，能够有效提高触控显示装置的灵敏度。
此外，本发明还提供一种触控显示装置，该触控显示装置包括以上所述的触控显示基板。
由于该触控显示装置包括以上所述的触控显示基板，从而使得该触控显示装置具有和上述触控显示基板相同的有益效果，此处不再进行赘述。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，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为本发明实施例中的触控电极对的平面图一；
图2为本发明实施例中的触控电极对的平面图二；
图3为本发明实施例中的触控电极对的平面图三；
图4为本发明实施例中的触控电极对的平面图四；
图5为本发明实施例中的阵列基板的截面图；
图6为本发明实施例中的彩膜基板的截面图；
图7为本发明实施例中的触控显示装置的截面图；
图8为本发明实施例中的触控显示装置的触控原理为自电容时的驱动时 序图；
图9为本发明实施例中的触控显示装置的触控原理为互电容时的驱动时序图。
附图标记说明：
1-触控电极；       10-触控电极对；    11-第一触控电极；
12-第二触控电极；  2-子像素；         21-薄膜晶体管；
22-像素电极；      3-绝缘层；         4-黑矩阵；
5-彩色滤色层；     A-第一条形结构；   B-第二条形结构。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例提供一种触控显示基板。该触控显示基板包括多个触控电极，多个触控电极分为至少一个触控电极对。每个所述触控电极对均包括相邻的第一触控电极和第二触控电极，所述第一触控电极包括多个弯折部，所述第二触控电极包括多个弯折部，所述第一触控电极的相应弯折部与所述第二触控电极的相应弯折部在位置上相匹配。在下面的示例中，所述弯折部也可以是弯曲部，并且以第一触控电极包括第一弯折部和/或第一弯曲部并且第二触控电极12包括第二弯折部和/或第二弯曲部为例进行说明。应该理解的是，所述触控电极可以包括多个弯折部/弯曲部。如图1和图2所示，每个触控电极对10均包括相邻的第一触控电极11和第二触控电极12，第一触控电极11包括第一弯折部和/或第一弯曲部，第二触控电极12包括第二弯折部和/或第二弯曲部，且第二弯折部与第一弯折部位置相对应，第二弯曲部与第一弯曲部位置相对应。
本发明实施例提供的触控显示基板具有如上所述的结构，由于触控显示基板包括的多个触控电极分为至少一个触控电极对10，且每个触控电极对10均包括相邻的第一触控电极11和第二触控电极12，第一触控电极11包括第一 弯折部和/或第一弯曲部，第二触控电极12包括第二弯折部和/或第二弯曲部，且第二弯折部与第一弯折部位置相对应，第二弯曲部与第一弯曲部位置相对应。与现有技术相比，本发明实施例中的第一触控电极11和第二触控电极12具有较大的正对交叠面积，使得用户的触摸对第一触控电极11和第二触控电极12形成的电容的影响较大，从而使得将该触控显示基板应用于触控显示装置中时，能够有效提高触控显示装置的灵敏度。
另外，对于具有上述结构的触控显示基板，只需要改变输入至各个触控电极上的信号，即可使上述每个触控电极对10中的第一触控电极11和第二触控电极12均为自电容电极，或者如图3所示，每个触控电极对10中的第一触控电极11为驱动电极Tx，第二触控电极12为接收电极Rx，因此，该触控显示基板的应用更灵活。如图1和图2所示，每个触控电极对10中的第一触控电极11和第二触控电极12均为自电容电极时，该触控显示基板可以应用于触控原理为自电容的触控显示装置中；如图3所示，当每个触控电极对10中的第一触控电极11为驱动电极Tx，第二触控电极12为接收电极Rx时，该触控显示基板可以应用于触控原理为互电容的触控显示装置中。
需要补充的是，本发明实施例中每个触控电极对10所占区域的尺寸可以与一个触摸点的尺寸(通常为3mm×3mm)相同或相近，以使得触控电极的制作方法简单，且对触控驱动电路的要求较低；或者，相邻的多个触控电极对10所占区域的尺寸与一个触摸点的尺寸相同或相近，以提高触控显示装置的精度，并进一步提高触控显示装置的灵敏度。
为了便于本领域技术人员理解和实施，下面本发明实施例对触控电极对10中的第一触控电极11和第二触控电极12的具体结构进行举例说明。需要说明的是，第一触控电极11和第二触控电极12的具体结构并不局限于此。本领域技术人员基于以下内容可以获得其他具体结构，此处不再一一进行赘述。
示例性地，如图1和图2所示，第一触控电极11和第二触控电极12均为螺旋形状，并且第一触控电极11和第二触控电极12相互嵌套。本领域技术人员可以根据实际情况设定第一触控电极11和第二触控电极12相互嵌套的圈数。示例性地，上述实际情况可以为：触控电极对10的尺寸、第一触控电极11和第二触控电极12的宽度以及触控显示装置对灵敏度的要求等。
此时，第一触控电极11和第二触控电极12的正对交叠面积远大于现有技术中相邻的两个触控电极的正对交叠面积，进而使得即使本发明实施例中的触控电极对10所占区域的尺寸比现有技术中的相邻的两个触控电极所占区域的尺寸大，触控显示装置仍然具有更高的灵敏度。因此，本发明实施例中，可以在保证触控显示装置具有高的灵敏度的同时，使触控电极对10所占区域的尺寸比现有技术中的相邻的两个触控电极所占区域的尺寸大，以减少用于为触控电极提供信号的接线的数目，进而降低对触控驱动电路的要求和布线的难度。
应该理解的是，本说明书中描述的第一触控电极11和第二触控电极12所具有的较大正对交叠面积指的是在同一平面布线图案中，第一触控电极11和第二触控电极彼此之间相邻地设置的交叠情况。例如，当第一触控电极11和第二触控电极12是按照同心方式相互嵌套交叠的螺旋线形状时，所述第一触控电极11和所述第二触控电极12可以呈回字形交叠方式布线，这种触控电极的排布设计为单层布线结构。
具体地，如图1所示，第一触控电极11可以为方形螺旋形状，第二触控电极12也为方形螺旋形状，第一触控电极11和第二触控电极12相互嵌套交叠；或者，如图2所示，第一触控电极11为圆形螺旋形状，第二触控电极12也为圆形螺旋形状，第一触控电极11和第二触控电极12相互嵌套交叠。
其中，当第一触控电极11和第二触控电极12均为方形螺旋形状，且第一触控电极11和第二触控电极12相互嵌套时，由第一触控电极11和第二触控电极12构成的触控电极对10的形状为矩形，各个触控电极对10可以紧密排列以布满整个触控显示基板。因此，本发明实施例中优选地，如图1所示，第一触控电极11为方形螺旋形状，第二触控电极12也为方形螺旋形状，第一触控电极11和第二触控电极12相互嵌套交叠。此时，第一触控电极11和第二触控电极12均包括延伸方向相互垂直的多个第一条形结构A和多个第二条形结构B，第一触控电极11包括的多个第一条形结构A和多个第二条形结构B交替首尾连接，构成方形螺旋形状，且第二触控电极12包括的多个第一条形结构A和多个第二条形结构B交替首尾连接，构成方形螺旋形状。
进一步地，本发明实施例中优选地，如图1所示，第一触控电极11包括的第一条形结构A的宽度W1和第二触控电极12包括的第一条形结构A的宽 度W2相同，且第一触控电极11包括的第二条形结构B的宽度W1’和第二触控电极12包括的第二条形结构B的宽度W2’相同，以使得触控电极的设计方式简单，且使触控显示装置在行方向上的不同位置处均具有相同的灵敏度，以及使触控显示装置在列方向上的不同位置处均具有相同的灵敏度。
具体地，当如图4所示触控显示基板上还设置有阵列排布的多个子像素2，且第一条形结构A的延伸方向为行方向时，第一触控电极11包括的第一条形结构A的宽度W1和第二触控电极12包括的第一条形结构A的宽度W2可以与子像素2具有一定的对应关系，以使触控电极可以在显示时间段内复用作公共电极，进而简化触控显示装置的结构。示例性地，如图4所示，第一触控电极11包括的第一条形结构A的宽度W1和第二触控电极12包括的第一条形结构A的宽度W2均为沿列方向依次排列的至少一个子像素2的总长度，且第一触控电极11包括的第一条形结构A与第二触控电极12包括的第一条形结构A之间的间距为相邻两行子像素2之间的间距。
本领域技术人员知道的是，第一触控电极11包括的第一条形结构A的宽度W1和第二触控电极12包括的第一条形结构A的宽度W2会对第一触控电极11与第二触控电极12的正对交叠面积以及触控电极对10所占区域的尺寸产生影响。第一触控电极11包括的第一条形结构A的宽度W1和第二触控电极12包括的第一条形结构A的宽度W2越小，第一触控电极11和第二触控电极12的正对交叠面积越大，触控电极对10所占区域的尺寸越小，但第一触控电极11和第二触控电极12的制作难度越大。因此，对第一触控电极11包括的第一条形结构A的宽度W1和第二触控电极12包括的第一条形结构A的宽度W2进行合理的设计具有十分重要的意义。示例性地，本发明实施例在综合考虑第一触控电极11和第二触控电极12的制作难度、二者的正对面积以及触控电极对10所占区域的尺寸后，选择如图4所示，第一触控电极11包括的第一条形结构A的宽度W1和第二触控电极12包括的第一条形结构A的宽度W2均为沿列方向依次排列的两个子像素2的总长度。
类似地，当如图4所示触控显示基板上还设置有阵列排布的多个子像素2，且第二条形结构B的延伸方向为列方向时，第一触控电极11包括的第二条形结构B的宽度W1’和第二触控电极12包括的第二条形结构B的宽度W2’可以 与子像素2具有一定的对应关系。示例性地，如图4所示，第一触控电极11包括的第二条形结构B的宽度W1’和第二触控电极12包括的第二条形结构B的宽度W2’均为沿行方向依次排列的至少一个子像素2的总宽度，且第一触控电极11包括的第二条形结构B与第二触控电极12包括的第二条形结构B之间的间距为相邻两列子像素2之间的间距。
本发明实施例在综合考虑第一触控电极11和第二触控电极12的制作难度、二者的正对交叠面积以及触控电极对10所占区域的尺寸后，选择如图4所示第一触控电极11包括的第二条形结构B的宽度W1’和第二触控电极12包括的第二条形结构B的宽度W2’均为沿行方向依次排列的两个子像素2的总宽度。
另外，本发明实施例中的触控显示基板应用于触控显示装置中时可以作为阵列基板也可以作为彩膜基板。
具体地，当触控显示基板为阵列基板时，如图5所示，触控电极1位于阵列基板朝向彩膜基板的一面上。本发明实施例中优选地，触控电极1在显示时间段内复用作公共电极，以简化阵列基板的结构，减少制作阵列基板时的构图工艺次数，降低阵列基板的制作难度和成本，并提高阵列基板的良品率。另外，还可以避免通过在阵列基板上制作不透光的金属层以形成触控电极1时造成的开口率的下降的问题出现。可选地，如图5所示，阵列基板上还设置有阵列排布的多个子像素2。每个子像素2内设置有薄膜晶体管21和像素电极22。薄膜晶体管21和像素电极22上设置有绝缘层3，触控电极1设置于绝缘层3上。触控电极1的位于子像素2内的部分上具有狭缝。触控电极1在显示时间段内复用作公共电极，此时，包括此阵列基板的触控显示装置为的显示模式为HADS(高透过率高级超维场转换技术型)显示装置，其具有较佳的显示效果。
当触控显示基板为彩膜基板时，如图6所示，触控电极1位于彩膜基板朝向阵列基板的一面上。类似地，本发明实施例中优选地，触控电极1在显示时间段内复用作公共电极。可选地，如图6所示，彩膜基板上还设置有黑矩阵4和彩色滤色层5，触控电极1设置于黑矩阵4和彩色滤色层5上。示例性地，彩色滤色层5包括红色区域、绿色区域和蓝色区域。
此外，本发明实施例还提供一种触控显示装置，该触控显示装置包括以上 所述的触控显示基板。当触控显示基板为阵列基板时，如图7所示，该触控显示装置还包括与阵列基板相对的彩膜基板，以及位于二者之间的液晶分子层和隔垫物。此时，阵列基板的结构可以如图5所示，而彩膜基板上则无需要设置公共电极。当触控显示基板为彩膜基板时，该触控显示装置还包括与彩膜基板相对的阵列基板，以及位于二者之间的液晶分子层和隔垫物。此时，彩膜基板的结构可以如图6所示，而阵列基板上则无需设置绝缘层和公共电极。需要说明的是，虽然图中未示出，但上述阵列基板必然还包括纵横交错的栅线和数据线，以使其具有显示功能。
由于该触控显示装置包括以上所述的触控显示基板，从而使得该触控显示装置具有和上述触控显示基板相同的有益效果，此处不再进行赘述。
为了便于本领域技术人员理解该触控显示装置的使用过程，下面本发明实施例对该触控显示装置的触控原理为自容时和互容时的两种驱动方法进行详细描述。两种驱动方法均以触控电极在显示时间段内复用作公共电极为例进行说明。
可选地，当该触控显示装置的触控原理为自电容时，如图8所示，该驱动方法包括：将每帧时间划分为显示时间段(图8中表示为Display)和触控时间段(图8中表示为Touch)。，在显示时间段内，向触控电极上加载公共电极信号(图8中表示为Vcom)，示例性地，该公共电极信号可以为直流信号。同时，在显示时间段内，垂直扫描信号(图8中表示为SYNC signal)处于高电平，第一条栅线(图8中表示为Gate 1)至第n条栅线(图8中表示为Gate n)逐行开启，数据线上施加显示数据信号(图8中表示为Data Signal)。在触控时间段内，触控驱动电路向所有触控电极上施加触控信号(图8中表示为Touch Signal)，并通过检测各触控电极的电容值变化判断触控位置。示例性地，该触控侦测信号为周期脉冲信号。由于在触控时间段内，垂直扫描信号处于低电平，每条栅线和每条数据线上均加载与该触控信号波形相同的信号，进而能够有效避免栅线和数据线上加载的信号对触控电极上加载的触控信号的影响，进一步提高触控显示装置的灵敏度，降低触控显示装置的功耗，提高触控显示装置的触控性能。
可选地，当该触控显示装置的触控原理为互电容时，如图9所示，该驱动 方法包括：将每帧时间划分为显示时间段(图9中表示为Display)和触控时间段(图9中表示为Touch)。在显示时间段内，向所有触控电极上施加公共电极信号，示例性地，该公共电极信号可以为直流信号。同时，在显示时间段内，垂直扫描信号(图9中表示为SYNC signal)处于高电平，第一条栅线(图9中表示为Gate 1)至第n条栅线(图9中表示为Gate n)逐行开启，数据线上施加显示数据信号(图9中表示为Data Signal)。在触控时间段内，通过触控驱动电路向驱动电极(图9中表示为TX1～TXN)上依次施加驱动信号，且同时向接收电极(图9中表示为RX1和RX2)上交替施加感应信号，并通过检测接收电极上的感应信号的变化判断触控位置。示例性地，该驱动信号和感应信号可以均为周期脉冲信号。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (16)

  1. 一种触控显示基板，包括多个触控电极，其特征在于，所述多个触控电极分为至少一个触控电极对，每个所述触控电极对均包括相邻的第一触控电极和第二触控电极，所述第一触控电极包括多个弯折部，所述第二触控电极包括多个弯折部，所述第一触控电极的相应弯折部与所述第二触控电极的相应弯折部位置上相匹配。
  2. 根据权利要求1所述的触控显示基板，其特征在于，所述第一触控电极和所述第二触控电极均为螺旋形状，所述第一触控电极和所述第二触控电极相互嵌套交叠。
  3. 根据权利要求2所述的触控显示基板，其特征在于，所述第一触控电极为方形螺旋形状，所述第二触控电极也为方形螺旋形状，所述第一触控电极和所述第二触控电极相互嵌套交叠。
  4. 根据权利要求2所述的触控显示基板，其特征在于，所述第一触控电极为圆形螺旋形状，所述第二触控电极也为圆形螺旋形状，所述第一触控电极和所述第二触控电极相互嵌套交叠。
  5. 根据权利要求3所述的触控显示基板，其特征在于，所述第一触控电极和所述第二触控电极均包括延伸方向相互垂直的多个第一条形结构和多个第二条形结构，所述第一触控电极包括的多个所述第一条形结构和多个所述第二条形结构交替首尾连接，构成方形螺旋形状，且所述第二触控电极包括的多个所述第一条形结构和多个所述第二条形结构交替首尾连接，构成方形螺旋形状；
    所述第一触控电极包括的第一条形结构的宽度与所述第二触控电极包括的第一条形结构的宽度相同，所述第一触控电极包括的第二条形结构的宽度与所述第二触控电极包括的第二条形结构的宽度相同。
  6. 根据权利要求5所述的触控显示基板，其特征在于，所述触控显示基板还包括阵列排布的多个子像素，所述第一条形结构的延伸方向为所述阵列的行方向，所述第一条形结构的宽度为沿所述阵列的列方向依次排列的至少一个所述子像素的总长度，且所述第一触控电极包括的第一条形结构与所述第二触控电极包括的第一条形结构之间的间距为相邻两行所述子像素之间的间距。
  7. 根据权利要求6所述的触控显示基板，其特征在于，所述第一条形结构的宽度为沿列方向依次排列的两个所述子像素的总长度。
  8. 根据权利要求5所述的触控显示基板，其特征在于，所述触控显示基板还包括阵列排布的多个子像素，所述第二条形结构的延伸方向为所述阵列的列方向，所述第二条形结构的宽度为沿所述阵列的行方向依次排列的至少一个所述子像素的总宽度，且所述第一触控电极包括的第二条形结构与所述第二触控电极包括的第二条形结构之间的间距为相邻两列所述子像素之间的间距。
  9. 根据权利要求8所述的触控显示基板，其特征在于，所述第二条形结构的宽度为沿行方向依次排列的两个所述子像素的总宽度。
  10. 根据权利要求1所述的触控显示基板，其特征在于，每个所述触控电极对所占区域的尺寸与一个触摸点的尺寸相同或相近；或者，相邻的多个所述触控电极对所占区域的尺寸与一个所述触摸点的尺寸相同或相近。
  11. 根据权利要求1所述的触控显示基板，其特征在于，每个所述触控电极对中的所述第一触控电极和所述第二触控电极均为自电容电极；或者，每个所述触控电极对中的所述第一触控电极为驱动电极，所述第二触控电极为接收电极。
  12. 根据权利要求1所述的触控显示基板，其特征在于，所述触控显示基板为阵列基板，所述触控电极位于所述阵列基板朝向彩膜基板的一面上。
  13. 根据权利要求12所述的触控显示基板，其特征在于，所述阵列基板上还设置有阵列排布的多个子像素，每个所述子像素内设置有薄膜晶体管和像素电极，所述薄膜晶体管和所述像素电极上设置有绝缘层，所述触控电极设置于所述绝缘层上，所述触控电极的位于所述子像素内的部分上具有狭缝。
  14. 根据权利要求1所述的触控显示基板，其特征在于，所述触控显示基板为彩膜基板，所述触控电极位于所述彩膜基板朝向阵列基板的一面上。
  15. 根据权利要求14所述的触控显示基板，其特征在于，所述彩膜基板上还设置有黑矩阵和彩色滤色层，所述触控电极设置于所述黑矩阵和所述彩色滤色层上。
  16. 一种触控显示装置，其特征在于，包括如权利要求1～15任一项所述的触控显示基板。
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