WO2016176971A1 - 触控显示面板及其驱动方法和触控显示装置 - Google Patents

触控显示面板及其驱动方法和触控显示装置 Download PDF

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Publication number
WO2016176971A1
WO2016176971A1 PCT/CN2015/092671 CN2015092671W WO2016176971A1 WO 2016176971 A1 WO2016176971 A1 WO 2016176971A1 CN 2015092671 W CN2015092671 W CN 2015092671W WO 2016176971 A1 WO2016176971 A1 WO 2016176971A1
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Prior art keywords
electrode
display panel
touch display
touch
substrate
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PCT/CN2015/092671
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English (en)
French (fr)
Inventor
丁小梁
王海生
刘英明
赵卫杰
杨盛际
刘伟
任涛
Original Assignee
京东方科技集团股份有限公司
北京京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, 北京京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 US15/104,523 priority Critical patent/US10216341B2/en
Priority to JP2016564310A priority patent/JP2018514821A/ja
Priority to EP15866396.3A priority patent/EP3293614B1/en
Priority to KR1020167029744A priority patent/KR101969028B1/ko
Publication of WO2016176971A1 publication Critical patent/WO2016176971A1/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
    • 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
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive 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
    • 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
    • G06F3/0416—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
    • 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
    • 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
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • 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
    • G06F2203/04107—Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a touch display panel, a driving method thereof, and a touch display device.
  • In-cell Touch technology integrates touch components into the display, making the display itself a touch-enabled technology.
  • the in-cell touch display device can complete the manufacture of the touch component in the standard process of the touch display device, without the problem of conforming and alignment, the product is lighter and thinner, no need for a frame, and can achieve various advantages such as a full-plane design. It is one of the hotspots in the field of research.
  • FIG. 1 is a schematic cross-sectional view of an in-cell touch display panel in the prior art
  • FIG. 2 is a top view of the touch scan electrode and the touch sensing electrode in the touch display panel of FIG. 1 , as shown in FIG. 1 and FIG. 2 .
  • the touch display panel includes: an array substrate 1 and a color filter substrate 2 disposed opposite to each other, wherein the array substrate 1 includes: a first substrate substrate 3 and a common electrode layer on the first substrate, the common electrode layer is divided There are a plurality of block-shaped touch sensing electrodes 4 and a plurality of strip-shaped common electrodes 5 extending in the row direction, wherein the touch sensing electrodes 4 and the strip-shaped common electrodes 5 are spaced apart in the column direction.
  • each touch sensing electrode 4 passes through a corresponding one of the lateral leads 9 (the lateral leads 9 are in one-to-one correspondence with the touch sensing electrodes, and the lateral leads 9 are connected to the touch sensing electrodes through via holes (not shown).
  • the color filter substrate 2 includes: a second base substrate 6 and a black matrix 7 on the second base substrate 6, wherein the black matrix 7 defines a pixel area and a light shielding area, and a strip touch scan is disposed in the light shielding area Electrode 8.
  • the touch scan electrode 8 is disposed opposite to the strip-shaped common electrode 5 .
  • the touch scan signal TX is outputted row by row to the touch scan electrode 8 on the color filter substrate 2 (only TX1 and TX2 are exemplarily shown in the figure), and then the pair is received through the lateral lead 9
  • the touch sensing signal RX on the touch sensing electrode 4 is used to calculate the amount of change in capacitance between the front and rear touch scanning electrodes 8 and the touch sensing electrode 4, and compare with a preset threshold to determine whether there is a finger. Touch to achieve touch recognition.
  • the existing touch display panel has the following two types of interference when performing touch recognition.
  • First the contact area of the human finger is large, and the edge of the finger often contacts other touch sensing electrodes adjacent to the current touch sensing electrode, thereby causing finger edge touch interference.
  • the position where the touch sensing electrodes 4 located in the third row and the third row are touched is touched.
  • the position of the touch sensing electrode 4 located in the second row of the first row is touched by the edge of the finger, thereby generating a finger edge touch interference amount, and at the same time, since the connection is located in the first row and the third column.
  • the lateral lead of the touch sensing electrode 4 passes through the touch sensing electrodes 4 located in the second row of the first row. Therefore, when the horizontal lead transmits the touch sensing signal RX3, the touch is located in the second row of the first row.
  • the touch sensing signal RX2 on the sensing electrode 4 generates a certain crosstalk.
  • the amount of interference on the touch sensing electrodes 4 is large, so that the touches located in the second row of the first row are The amount of capacitance change corresponding to the sensing electrode 4 is large, so that the area corresponding to the touch sensing electrode 4 located in the second row of the first row is erroneously recognized as the touch area.
  • the touch sensing electrode is disposed such that the amount of interference on the touch sensing electrode located near the actual touch area is large, so that the area located near the actual touch area is incorrectly recognized as the touch area, thereby causing the touch
  • the touch recognition of the control panel is not accurate.
  • the invention provides a touch display panel, a driving method thereof and a touch display device, which can effectively prevent an area located near the actual touch area from being mistakenly recognized as a touch area, thereby effectively improving the accuracy of the touch display panel. .
  • the present invention provides a touch display panel comprising: a plurality of first electrode groups arranged in a first direction and a plurality of second electrode groups arranged in a second direction, the first electrode group
  • the method includes: a plurality of first electrodes arranged in a second direction, the second electrode group comprising: a plurality of adjacent second electrode subsets arranged in a second direction, the second electrode subset comprising: a second electrode arranged in the first direction;
  • the first electrode and the second electrode are located in different layers, and the projection of the second electrode on the layer where the first electrode is located does not overlap with the first electrode and is first with the first electrode
  • the direction and the second direction are both spaced apart;
  • the areas are electrically connected to each other;
  • All of the second electrodes located in the same second electrode group are electrically connected to each other.
  • the second electrode group is provided with a second lead connected to a peripheral area of the touch display panel;
  • the second lead is electrically connected to a second electrode of the corresponding second electrode group that is closest to a peripheral area of the touch display panel.
  • the number of the second electrode subgroups in each of the second electrode groups is two.
  • the touch display panel includes: an array substrate and a pair of box substrates disposed opposite to the array substrate, wherein the first electrode is located on the array substrate, and the second electrode is located on the pair of cassette substrates .
  • the array substrate includes: a first substrate substrate and a plurality of common electrodes on the first substrate;
  • the first electrode is disposed in the same layer as the common electrode, and the first electrode and the common electrode are disposed at intervals in a first direction and a second direction.
  • the first electrode has the same shape as the common electrode.
  • the pair of substrates comprises: a second substrate and a light shielding layer on the second substrate;
  • the material of the second electrode is a metal material, and the second electrode is located above the light shielding layer.
  • the material of the second electrode is a transparent conductive material.
  • the present invention further provides a touch display device, comprising: a touch display panel, wherein the touch display panel uses the touch display panel.
  • the present invention further provides a driving method of a touch display panel, wherein the touch display panel adopts the above touch display panel, and the second electrode is connected to the peripheral area through a second lead;
  • the driving method of the touch display panel includes:
  • the driving method of the touch display panel includes:
  • the touch scan signal is output to the second electrode, and the touch sensing signal on the first electrode is detected.
  • the touch display panel comprises an array substrate and a pair of box substrates disposed opposite to the array substrate, wherein the first electrode is located on the array substrate, and the second electrode is located on the pair of cassette substrates .
  • the array substrate includes a first substrate and a plurality of common electrodes on the first substrate, the first electrode is disposed in the same layer as the common electrode, and the first electrode and the common The electrodes are spaced apart in both the first direction and the second direction.
  • the driving method of the touch display panel further includes:
  • a common voltage signal is output to the first electrode and the common electrode.
  • the present invention provides a touch display panel, a driving method thereof, and a touch display device, wherein the touch display panel includes: a plurality of first electrode groups arranged in a first direction and a plurality of first electrodes arranged in a second direction a second electrode group, the first electrode group includes: a plurality of first electrodes arranged in a second direction, the second electrode group comprising: a plurality of adjacent second electrode subsets arranged in the second direction, the second electrode
  • the sub-group includes: a plurality of second electrodes arranged along the first direction; the first electrode and the second electrode are located in different layers, and the projection of the second electrode on the layer where the first electrode is located does not overlap with the first electrode and is first The electrodes are spaced apart in both the first direction and the second direction.
  • the technical solution of the present invention can prevent the first electrode located in the vicinity of the actual touch area from being interfered by the touch of the finger edge and the interference of the lead crosstalk at the same time, that is, the first electrode located near the actual touch area. Since the interference received is small, the area near the actual touch area is not erroneously recognized as the touch area. Therefore, the touch recognition accuracy of the touch display panel provided by the present invention is improved.
  • FIG. 1 is a schematic cross-sectional view of an in-cell touch display panel in the prior art
  • FIG. 2 is a top view of a touch scan electrode and a touch sensing electrode in the touch display panel of FIG. 1;
  • FIG. 3 is a top view of a touch display panel according to Embodiment 1 of the present invention.
  • FIG. 4 is a schematic view showing the distribution of the first electrode of FIG. 3;
  • Figure 5 is a schematic view showing the distribution of the second electrode of Figure 3;
  • FIG. 6 is a top plan view of an array substrate according to Embodiment 1 of the present invention.
  • Figure 7 is a plan view of a substrate for a cassette in the first embodiment of the present invention.
  • FIG. 8 is a flowchart of a method for driving a touch display panel according to Embodiment 3 of the present invention.
  • FIG. 9 is a flowchart of still another driving method of a touch display panel according to Embodiment 3 of the present invention.
  • FIG. 3 is a top view of a touch display panel according to Embodiment 1 of the present invention
  • FIG. 4 is a schematic view showing the distribution of the first electrode in FIG. 3
  • FIG. 5 is a schematic view showing the distribution of the second electrode in FIG. 3
  • the touch display panel includes: a plurality of first electrode groups 18 and a plurality of second electrode groups 19, wherein all of the first electrode groups 18 are arranged in a first direction, and all of the second electrode groups 19 are along a second Arranged in the direction, the first electrode group 18 includes: a plurality of first electrodes 11 arranged in a second direction, and the second electrode group 19 includes: a plurality of adjacent second electrode sub-groups 20 arranged in the second direction,
  • the two electrode subgroup 20 includes a plurality of second electrodes 15 arranged in a first direction.
  • the first electrode 11 and the second electrode 15 are located in different layers, and the projection of the second electrode 15 on the layer where the first electrode 11 is located does not overlap with the first electrode 11 and with the first electrode 11 in the first direction and the second
  • the first electrode 11 is provided with a first lead 13 connected to a peripheral region of the touch display panel, and all the first leads 13 corresponding to all the first electrodes 11 located in the same first electrode group 18;
  • the peripheral regions of the touch display panel are electrically connected to each other; all of the second electrodes 15 of the second electrode group 19 are electrically connected to each other.
  • the first electrode 11 is a touch sensing electrode
  • the second electrode 15 is a touch scanning electrode
  • the first direction is a row direction
  • the second direction is the column direction as an example.
  • each second electrode group can generate a corresponding touch scan signal TX (only TX1 and TX2 are exemplarily shown in the figure), and each second electrode group can generate a corresponding touch sensing signal RX (only in the figure) RX1, RX2, RX3, RX4) are exemplarily drawn.
  • the number of the second electrode subgroups in the second electrode group is two, that is, each adjacent two rows of second electrodes can be simultaneously driven. At this time, while ensuring touch recognition in each area of the touch display panel, the touch resolution of the touch display panel can be maximized.
  • the second row and the second row are located in the second row and the fourth row.
  • the first electrode 11 is disturbed by the touch of the finger edge.
  • the first lead corresponding to the first electrode 11 located in the third row of the first row does not pass through the region where the first electrode 11 located in the second row or the fourth row of the second row is located,
  • the first electrode 11 located in the second row and the second column of the second row is not disturbed by the lead crosstalk. Therefore, the amount of interference received by the first electrode 11 located in the second row and the fourth column of the second row is small.
  • the touch display panel comprises: an array substrate and a pair of box substrates disposed opposite to the array substrate, wherein the first electrode is located on the array substrate, and the second electrode is located on the counter substrate .
  • each of the common electrodes 12 is provided with a third lead 14 connected to the peripheral region of the array substrate, and all the third leads 14 on the array substrate are in the peripheral region of the array substrate. Electrically connected to each other to electrically connect all of the common electrodes 12 on the array substrate to each other, this case is merely exemplary. It should be understood by those skilled in the art that the means for realizing the electrical connection of all the common electrodes 12 on the array substrate in this embodiment is not limited to that shown in FIG. 3, and other means may be used in this embodiment to implement all the common electrodes 12. Electrical connection, no longer exemplified here.
  • the pair of cassette substrates includes a second substrate substrate 6 and a light shielding layer on the second substrate substrate 6 (not shown).
  • the material of the second electrode 15 is a metal material, and the second electrode 15 is located above the light shielding layer.
  • the material of the second electrode 15 is a metal material (for example, Al, Mo, Cr, etc.), it is necessary to ensure that the second electrode 15 is completely covered by a light shielding layer (not shown) in the case substrate.
  • the second electrode 15 may specifically be a metal mesh structure.
  • the second embodiment of the present invention provides a touch display device.
  • the touch display device includes a touch display panel.
  • the touch display panel uses the touch display panel in the first embodiment. For details, refer to the above embodiment. The description in one is not repeated here.
  • the third embodiment of the present invention provides a method for driving a touch display panel.
  • the touch display panel uses the touch display panel of the first embodiment.
  • FIG. 8 is a flowchart of a method for driving a touch display panel according to Embodiment 3 of the present invention.
  • the first electrode in the touch display panel is a touch scan electrode
  • the second electrode is a touch
  • the driving method of the touch display panel includes:
  • Step 101 Output a touch scan signal to the first electrode to detect a touch sensing signal on the second electrode.
  • a touch scan signal is provided to the corresponding first electrode through the first lead, and then the touch sensing signal on the second electrode is detected by the second lead.
  • the driving method further includes:
  • Step 102 Output a common voltage signal to the first electrode and the common electrode.
  • step 102 in this embodiment may also be performed before step 101.
  • the touch display panel takes the above steps 101 and 102 as a working cycle, and performs repeated execution to realize continuous display and touch recognition.
  • the principle that the touch display panel is based on the above driving method to realize pixel display and touch recognition is not described herein again.
  • the driving method further includes:
  • Step 202 Output a common voltage signal to the first electrode and the common electrode.
  • step 202 in this embodiment may also be performed before step 201.
  • the touch display panel takes the above steps 201 and 202 as a working cycle, and performs repeated execution to realize continuous display and touch recognition.

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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)
  • Quality & Reliability (AREA)
  • Position Input By Displaying (AREA)

Abstract

一种触控显示面板及其驱动方法和触控显示装置，该触控显示面板包括：沿第一方向排列的若干个第一电极组（18）和沿第二方向排列的若干个第二电极组（19），第一电极组包括：若干个沿第二方向排列的第一电极（11），第二电极组包括：若干个相邻的且沿第二方向排列的第二电极子组（20），第二电极子组包括：若干个沿第一方向排列的第二电极（15）；第一电极与第二电极位于不同层，第二电极在第一电极所处层上的投影与第一电极不重叠且与第一电极在第一方向和第二方向上均间隔设置。该触控显示面板可以有效避免位于实际触控区域附近的区域被错误地识别为触控区域，从而能提升触控识别精准度。

Description

触控显示面板及其驱动方法和触控显示装置
本申请要求于2015年5月5日递交中国专利局的、申请号为201510223671.9、名称为“触控显示面板及其驱动方法和触控显示装置”的中国专利申请的权益，该申请的全部公开内容以引用方式并入本文。
技术领域
本发明涉及显示技术领域，特别涉及一种触控显示面板及其驱动方法和触控显示装置。
背景技术
内嵌式触控(In-cell Touch)技术即将触控元件整合于显示屏内部，使显示屏本身就具有触控功能的技术。内嵌式触控显示装置具有在触控显示装置标准制程中即可完成触控元件的制造，没有贴合及对位的问题，产品更加轻薄，无需边框，可达全平面设计等诸多优点，是目前领域内研究的热点之一。
在现有的内嵌式触控显示装置中，通常会通过对阵列基板上的公共电极层进行分时复用的方式实现内嵌式触控功能。图1为现有技术中内嵌式触控显示面板的截面示意图，图2为图1所示触控显示面板中触控扫描电极和触控感应电极的俯视图，如图1和图2所示，该触控显示面板包括：相对设置的阵列基板1和彩膜基板2，其中阵列基板1包括：第一衬底基板3和位于第一衬底基板上的公共电极层，公共电极层被划分为若干个块状触控感应电极4和若干个沿行方向延伸的条状公共电极5，其中，触控感应电极4和条状公共电极5在列方向上间隔设置。在图2中，每个触控感应电极4均通过对应的一条横向引线9(横向引线9与触控感应电极一一对应，横向引线9通过过孔(未示出)与触控感应电极连接)连接至所述阵列基板的周边区域，且与位于同一列的全部触控感应电极4对应的全部横向引线9在周边区域电连接，以接收触控感应信号RX(图中仅示例性画出了RX1、RX2、RX3、RX4)。彩膜基板2包括：第二衬底基板6和位于第二衬底基板6上的黑矩阵7，其中黑矩阵7限定出像素区域和遮光区域，在遮光区域内设置有条状的触控扫描电极8。其中该触控扫描电极8与条状的公共电极5相对设置。
在进行触控时，通过向彩膜基板2上的触控扫描电极8逐行的输出触控扫描信号TX(图中仅示例性画出了TX1、TX2)，然后通过横向引线9接收对 应触控感应电极4上的触控感应信号RX，通过计算手指触摸前后触控扫描电极8与触控感应电极4之间电容变化量，并与预设阈值进行比较，从而来判断是否有手指触摸，从而实现触控识别。
然而，现有的这种触控显示面板在进行触控识别时会存在如下两种干扰量。其一，人体手指的接触处面积较大，往往手指的边缘会接触到与当前触控感应电极相邻的其他触控感应电极，从而出现手指边缘触控干扰。其二，由于连接触控感应电极(第一列的除外)的横向引线会穿过其他的触控感应电极，因此携带有触控感应信号的横向引线会对其所穿过的触控感应电极产生一定的串扰。
以手指触控图2中的A区域为例，即位于第一行第三列的触控感应电极4所处的位置被触控。此时，位于第一行第二列的触控感应电极4所处的位置会被手指边缘触控，从而产生手指边缘触控干扰量，与此同时，由于连接位于第一行第三列的触控感应电极4的横向引线穿过位于第一行第二列的触控感应电极4，因此当该横向引线传递触控感应信号RX3时，则会对位于第一行第二列的触控感应电极4上的触控感应信号RX2产生一定的串扰。由于上述两种干扰量同时发生在位于第一行第二列上的触控感应电极，使得该触控感应电极4上的干扰量较大，从而使得位于第一行第二列上的触控感应电极4所对应的电容变化量较大，从而使得位于第一行第二列上的触控感应电极4所对应的区域被错误地识别为触控区域。
由上述内容可见，现有技术中的触控显示面板在进行触控识别时，手指边缘触控所产生的干扰量和横向引线串扰所产生的干扰量会同时作用于位于实际触控区域附近的触控感应电极上，以使得位于实际触控区域附近的触控感应电极上的干扰量较大，从而使得位于该实际触控区域附近的区域被错误地识别为触控区域，进而造成该触控显示面板的触控识别精准度不高。
发明内容
本发明提供一种触控显示面板及其驱动方法和触控显示装置，可有效避免位于实际触控区域附近的区域被错误地识别为触控区域，从而能有效提升触控显示面板的精准度。
为实现上述目的，本发明提供了一种触控显示面板，包括：沿第一方向排列的若干个第一电极组和沿第二方向排列的若干个第二电极组，所述第一电极组包括：若干个沿第二方向排列的第一电极，所述第二电极组包括：若干个相邻的且沿第二方向排列的第二电极子组，所述第二电极子组包括：若干个沿第一方向排列的第二电极；
所述第一电极与所述第二电极位于不同层，所述第二电极在所述第一电极所处层上的投影与所述第一电极不重叠且与所述第一电极在第一方向和第二方向均间隔设置；
在所述第一电极上设置有连接至所述触控显示面板的周边区域的第一引线，与位于同一第一电极组中的相应第一电极对应的所有所述第一引线在所述周边区域彼此电连接；
位于同一第二电极组中的全部第二电极彼此电连接。
可选地，所述第二电极组上设置有连接至所述触控显示面板的周边区域的第二引线；
所述第二引线与相应第二电极组中离所述触控显示面板的周边区域最近的一个第二电极电连接。
可选地，每个所述第二电极组中的所述第二电极子组的个数为2个。
可选地，所述触控显示面板包括：阵列基板和与阵列基板相对设置的对盒基板，其中所述第一电极位于所述阵列基板上，所述第二电极位于所述对盒基板上。
可选地，所述阵列基板包括：第一衬底基板和位于所述第一衬底基板上的若干个公共电极；
所述第一电极与所述公共电极同层设置，所述第一电极与所述公共电极在第一方向和第二方向上均间隔设置。
可选地，所述第一电极与所述公共电极的形状相同。
可选地，所述对盒基板包括：第二衬底基板和位于第二衬底基板上的遮光层；
所述第二电极的材料为金属材料，所述第二电极位于所述遮光层的上方。
可选地，所述第二电极的材料为透明导电材料。
为实现上述目的，本发明还提供了一种触控显示装置，包括：触控显示面板，所述触控显示面板采用上述的触控显示面板。
为实现上述目的，本发明还提供了一种触控显示面板的驱动方法，其中所述触控显示面板采用上述的触控显示面板，且第二电极通过第二引线连接至所述周边区域；
当所述第一电极为触控扫描电极，且所述第二电极为触控感应电极时，所述触控显示面板的驱动方法包括：
在触控阶段，向所述第一电极输出触控扫描信号，并检测所述第二电极上的触控感应信号；并且
当所述第一电极为触控感应电极，且所述第二电极为触控扫描电极时，所述触控显示面板的驱动方法包括：
在触控阶段，向所述第二电极输出触控扫描信号，并检测所述第一电极上的触控感应信号。
可选地，所述触控显示面板包括阵列基板和与阵列基板相对设置的对盒基板，其中所述第一电极位于所述阵列基板上，且所述第二电极位于所述对盒基板上。所述阵列基板包括第一衬底基板和位于所述第一衬底基板上的若干个公共电极，所述第一电极与所述公共电极同层设置，并且所述第一电极与所述公共电极在第一方向和第二方向上均间隔设置。此时，所述触控显示面板的驱动方法还包括：
在显示阶段，向所述第一电极和所述公共电极输出公共电压信号。
本发明具有以下有益效果：
本发明提供了一种触控显示面板及其驱动方法和触控显示装置，其中，该触控显示面板包括：沿第一方向排列的若干个第一电极组和沿第二方向排列的若干个第二电极组，第一电极组包括：若干个沿第二方向排列的第一电极，第二电极组包括：若干个相邻的且沿第二方向排列的第二电极子组，第二电极子组包括：若干个沿第一方向排列的第二电极；第一电极与第二电极位于不同层，第二电极在第一电极所处层上的投影与第一电极不重叠且与第一电极在第一方向和第二方向均间隔设置。本发明的技术方案可使得在进行触控时，位于实际触控区域附近的第一电极不会同时受到手指边缘触控的干扰和引线串扰的干扰，即位于实际触控区域附近的第一电极受到的干扰较小，因此位于实际触控区域附近的区域不会被错误地识别为触控区域，所以本发明提供的触控显示面板的触控识别精准度会得到提升。
附图说明
图1为现有技术中内嵌式触控显示面板的截面示意图；
图2为图1所示触控显示面板中触控扫描电极和触控感应电极的俯视图；
图3为本发明实施例一提供的触控显示面板的俯视图；
图4为图3中第一电极的分布示意图；
图5为图3中第二电极的分布示意图；
图6为本发明实施例一中的阵列基板的俯视图；
图7为本发明实施例一中的对盒基板的俯视图；
图8为本发明实施例三提供的一种触控显示面板的驱动方法的流程图；
图9为本发明实施例三提供的又一种触控显示面板的驱动方法的流程图。
具体实施方式
为使本领域的技术人员更好地理解本发明的技术方案，下面结合附图对本发明提供的触控显示面板及其驱动方法和触控显示装置进行详细描述。
图3为本发明实施例一提供的触控显示面板的俯视图，图4为图3中第一电极的分布示意图，图5为图3中第二电极的分布示意图；如图3至图5所示，该触控显示面板包括：若干个第一电极组18和若干个第二电极组19，其中，全部的第一电极组18沿第一方向排列，全部的第二电极组19沿第二方向排列，第一电极组18包括：若干个沿第二方向排列的第一电极11，第二电极组19包括：若干个相邻的且沿第二方向排列的第二电极子组20，第二电极子组20包括：若干个沿第一方向排列的第二电极15。
其中，第一电极11与第二电极15位于不同层，第二电极15在第一电极11所处层上的投影与第一电极11不重叠且与第一电极11在第一方向和第二方向上均间隔设置；第一电极11上设置有连接至触控显示面板的周边区域的第一引线13，与位于同一第一电极组18中的全部第一电极11对应的全部第一引线13在触控显示面板的周边区域彼此电连接；第二电极组19中的全部第二电极15彼此电连接。
在本实施例中，第一电极11和第二电极15中的一个作为触控扫描电极，另一个作为触控感应电极。
为使本领域的技术人员更好的理解本发明的技术方案，本实施例中以第一电极11为触控感应电极，第二电极15为触控扫描电极，第一方向为行方向，第二方向为列方向为例进行说明。此时每个第二电极组可产生相应的触控扫描信号TX(图中仅示例性画出了TX1、TX2)，每个第二电极组可产生相应的触控感应信号RX(图中仅示例性画出了RX1、RX2、RX3、RX4)。
需要说明的是，本领域的技术人员应该知晓的是，上述设置仅起到示例性作用，这不会对本申请的技术方案产生限制。
在本实施例中，可选地，通过设置相应的导电条16以使得在同一第二电极组19中的全部第二电极15彼此电连接，其中，该导电条16与第二电极15同层设置。此时，对应一个第二电极组19仅需设置一条连接至触控显示面板的周边区域的第二引线17，从而可有效的减小触控显示面板的周边引线的数量。优选地，该第二引线17与对应第二电极组19中离触控显示面板的周 边区域最近的一个第二电极15电连接。此时，可有效的缩短第二引线17的布线长度。
本领域的技术人员应该知晓的是，该导电条16的设置不会对本申请技术方案产生限制，本实施例中还可采用其他的方式以实现同一第二电极组19中全部第二电极15电连接。
在本实施例中，可选地，第二电极组中的第二电极子组的个数为2个，即每相邻的两行第二电极可被同时驱动。此时，在保证触控显示面板上各区域均能实现触控识别的同时，可以实现该触控显示面板的触控分辨率的最大化。
继续参见图3，当手指触碰该触控显示面板时，虽然在实际触控区域附近的区域仍会存在手指边缘触控干扰以及引线串扰干扰(第一引线在传递触控感应信号时与其穿过区域中的第一电极产生串扰)，但是位于实际触控区域附近的任意一个第一电极11都不会同时受到上述两种干扰。
下面以手指实际触控区域为图3中的B区域为例进行说明，即位于第一行第三列的第一电极11所处的位置被触控。此时，B区域附近的第一电极11具体为位于第一行第一列、第二行第二列和位于第二行第四列的第一电极11。
其中，由于位于第二行第二列和位于第二行第四列的第一电极11所处的位置会被手指边缘触控，因此位于第二行第二列和位于第二行第四列的第一电极11会受到手指边缘触控的干扰。但是，由于位于第一行第三列的第一电极11所对应的第一引线没有穿过位于第二行第二列或位于第二行第四列的第一电极11所处的区域，因此位于第二行第二列和位于第二行第四列的第一电极11不会受到引线串扰的干扰。所以，位于第二行第二列和位于第二行第四列的第一电极11所受到的干扰量较小。
与此同时，由于位于第一行第三列的第一电极11所对应的第一引线穿过位于第一行第一列的第一电极11所处的区域，因此位于第一行第一列的第一电极11会受到引线串扰的干扰。但是，由于位于第一行第一列的第一电极11与位于第一行第三列的第一电极11距离较远(两者之间的距离大于一个第二电极12的宽度)，因此位于第一行第一列的第一电极11不会受到手指边缘触控的干扰。所以，位于第一行第一列的第一电极11所受到的干扰量较小。
基于上述示例，推而广之，当手指触控图3所示的触控显示面板上的任意位置时，由于位于实际触控区域附近的第一电极11不会同时受到手指边缘触控的干扰和引线串扰的干扰，即位于实际触控区域附近的第一电极11受到的干扰较小，因此位于实际触控区域附近的区域不会被错误地识别为触控区域。所以，本实施例提供的触控显示面板的触控识别精准度会得到提升。
作为本实施例中一种更为具体的方案，该触控显示面板包括：阵列基板和与阵列基板相对设置的对盒基板，其中第一电极位于阵列基板上，第二电极位于对盒基板上。
图6为本发明实施例一中的阵列基板的俯视图，如图6所示，进一步地，阵列基板包括：第一衬底基板3和位于第一衬底基板3上的若干个公共电极12，第一电极11与公共电极12同层设置，第一电极11与公共电极12在第一方向和第二方向上均间隔设置。此时，第一电极11和公共电极12可通过一次构图工艺得以同时制备。
需要说明的是，本方案中的第一电极11可在触控阶段作为触控电极使用，而在显示阶段作为公共电极使用，具体方案将在后续内容中进行详细描述。
需要补充说明的是，在图6中，每个公共电极12上均设置有连接至阵列基板的周边区域的一条第三引线14，且阵列基板上全部第三引线14在阵列基板的周边区域均彼此电连接，以实现阵列基板上全部公共电极12彼此电连接，该情况仅起到示例性作用。本领域的技术人员应该知晓的是，本实施例中实现阵列基板上的全部公共电极12电连接的手段并不限于图3所示，本实施例中还可采用其他手段以实现全部公共电极12电连接，此处不再举例说明。
进一步可选地，第一电极与公共电极的形状相同。由于第一电极11与公共电极12的形状相同，则可使得第一电极11与公共电极12在阵列基板中均匀分布，从而可有效提升触控显示面板的显示效果的均一性。
图7为本发明实施例一中的对盒基板的俯视图，如图7所示，该对盒基板包括：第二衬底基板6和位于第二衬底基板6上的遮光层(未示出)，第二电极15的材料为金属材料，第二电极15位于遮光层的上方。本实施例中，由于第二电极15的材料为金属材料(例如：Al、Mo、Cr等)，所以需要保证对盒基板中的遮光层(未示出)完全覆盖第二电极15。需要说明的是，该第二电极15具体可以为金属网格状结构。
此外，在本实施例中，第二电极15的材料还可以为透明导电材料(例如：ITO)，则此时第二电极15无需被遮光层所覆盖。
本发明实施例二提供了一种触控显示装置，该触控显示装置包括：触控显示面板，该触控显示面板采用上述实施例一中的触控显示面板，具体内容可参见上述实施例一中的描述，此处不再赘述。
本发明实施例三提供了一种触控显示面板的驱动方法，其中该触控显示面板，采用上述实施例一中的触控显示面板，该触控显示面板的具体结构可参见上述实施例一中的描述。
图8为本发明实施例三提供的一种触控显示面板的驱动方法的流程图，如图8所示，该触控显示面板中的第一电极为触控扫描电极，第二电极为触控感应电极时，该触控显示面板的驱动方法包括：
步骤101：向第一电极输出触控扫描信号，检测第二电极上的触控感应信号。
具体地，首先通过第一引线向对应的第一电极提供触控扫描信号，然后通过第二引线检测第二电极上的触控感应信号。
可选地，当第一电极与阵列基板上的公共电极同层设置且在显示阶段复用为公共电极时，该驱动方法还包括：
步骤102：向第一电极和公共电极输出公共电压信号。
需要说明的是，本实施例中步骤102也可先于步骤101执行。在显示面板的实际工作中，该触控显示面板以上述步骤101和步骤102为一个工作周期，并进行反复执行，从而实现连续显示和触控识别。该触控显示面板基于上述驱动方法以实现像素显示和触控识别的原理此处不再进行赘述。
图9为本发明实施例三提供的又一种触控显示面板的驱动方法的流程图，如图9所示，该触控显示面板中的第一电极为触控感应电极，第二电极为触控扫描电极时，该触控显示面板的驱动方法包括：
步骤201：向第二电极输出触控扫描信号，检测第一电极上的触控感应信号。
具体地，首先通过第二引线向对应的第二电极提供触控扫描信号，然后通过第一引线检测第一电极上的触控感应信号。
可选地，当第一电极与阵列基板上的公共电极同层设置且在显示阶段复用为公共电极时，该驱动方法还包括：
步骤202：向第一电极和公共电极输出公共电压信号。
需要说明的是，本实施例中步骤202也可先于步骤201执行。在显示面板的实际工作中，该触控显示面板以上述步骤201和步骤202为一个工作周期，并进行反复执行，从而实现连续显示和触控识别。
可以理解的是，以上实施方式仅仅是为了说明本发明的原理而采用的示例性实施方式，然而本发明并不局限于此。对于本领域内的普通技术人员而言，在不脱离本发明的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本发明的保护范围。

Claims (11)

  1. 一种触控显示面板，包括：沿第一方向排列的若干个第一电极组和沿第二方向排列的若干个第二电极组，所述第一电极组包括：若干个沿第二方向排列的第一电极，所述第二电极组包括：若干个相邻的且沿第二方向排列的第二电极子组，所述第二电极子组包括：若干个沿第一方向排列的第二电极；
    所述第一电极与所述第二电极位于不同层，所述第二电极在所述第一电极所处层上的投影与所述第一电极不重叠且与所述第一电极在第一方向和第二方向均间隔设置；
    在所述第一电极上设置有连接至所述触控显示面板的周边区域的第一引线，与位于同一第一电极组中的相应第一电极对应的所有所述第一引线在所述周边区域彼此电连接；
    位于同一第二电极组中的全部第二电极彼此电连接。
  2. 根据权利要求1所述的触控显示面板，其中，在所述第二电极组上设置有连接至所述触控显示面板的周边区域的第二引线；
    所述第二引线与相应第二电极组中离所述触控显示面板的周边区域最近的一个第二电极电连接。
  3. 根据权利要求1所述的触控显示面板，其中，每个所述第二电极组中的所述第二电极子组的个数为2个。
  4. 根据权利要求1-4中任一所述的触控显示面板，其中，所述触控显示面板包括：阵列基板和与阵列基板相对设置的对盒基板，其中所述第一电极位于所述阵列基板上，且所述第二电极位于所述对盒基板上。
  5. 根据权利要求4所述的触控显示面板，其中，所述阵列基板包括：第一衬底基板和位于所述第一衬底基板上的若干个公共电极；
    所述第一电极与所述公共电极同层设置，并且所述第一电极与所述公共电极在第一方向和第二方向上均间隔设置。
  6. 根据权利要求5所述的触控显示面板，其中，所述第一电极与所述公共电极的形状相同。
  7. 根据权利要求4所述的触控显示面板，其中，所述对盒基板包括：第二衬底基板和位于第二衬底基板上的遮光层；
    所述第二电极的材料为金属材料，且所述第二电极位于所述遮光层的上方。
  8. 根据权利要求4所述的触控显示面板，其中，所述第二电极的材料为透明导电材料。
  9. 一种触控显示装置，其中，包括：如上述权利要求1-8中任一所述的触控显示面板。
  10. 一种触控显示面板的驱动方法，其中，所述触控显示面板采用上述权利要求1-8中任一项所述的触控显示面板，且第二电极通过第二引线连接至所述周边区域；
    当所述第一电极为触控扫描电极，且所述第二电极为触控感应电极时，所述触控显示面板的驱动方法包括：
    在触控阶段，向所述第一电极输出触控扫描信号，并检测所述第二电极上的触控感应信号；并且
    当所述第一电极为触控感应电极，且所述第二电极为触控扫描电极时，所述触控显示面板的驱动方法包括：
    在触控阶段，向所述第二电极输出触控扫描信号，并检测所述第一电极上的触控感应信号。
  11. 根据权利要求10所述的触控显示面板的驱动方法，其中，当所述触控显示面板为权利要求5所述的触控显示面板时，所述触控显示面板的驱动方法还包括：
    在显示阶段，向所述第一电极和所述公共电极输出公共电压信号。
PCT/CN2015/092671 2015-05-05 2015-10-23 触控显示面板及其驱动方法和触控显示装置 WO2016176971A1 (zh)

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