WO2016155016A1 - 一种触控液晶显示面板及触控液晶显示装置 - Google Patents

一种触控液晶显示面板及触控液晶显示装置 Download PDF

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Publication number
WO2016155016A1
WO2016155016A1 PCT/CN2015/075911 CN2015075911W WO2016155016A1 WO 2016155016 A1 WO2016155016 A1 WO 2016155016A1 CN 2015075911 W CN2015075911 W CN 2015075911W WO 2016155016 A1 WO2016155016 A1 WO 2016155016A1
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WIPO (PCT)
Prior art keywords
touch
layer
liquid crystal
crystal display
common electrodes
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PCT/CN2015/075911
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English (en)
French (fr)
Inventor
谢剑星
周诗博
黄耀立
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Wuhan China Star Optoelectronics Technology Co Ltd
TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
Wuhan China Star Optoelectronics Technology Co Ltd
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Publication of WO2016155016A1 publication Critical patent/WO2016155016A1/zh
Anticipated expiration legal-status Critical
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a touch liquid crystal display panel and a touch liquid crystal display device.
  • FIG. 1 is a schematic structural diagram of a touch display panel provided by the prior art.
  • the common electrode 10 on the array substrate is patterned into a matrix checkerboard format, and the common electrode 10 is connected to the driving circuit through the metal lead 20 .
  • the cell technology generally does not use the sensor epitaxial form to improve the edge touch sensitivity, so the touch sensitivity at the edge is poor. This is mainly because there is no corresponding sensor at the edge for comparison, and the edge is delta. C is not smooth, affecting the touch accuracy at the edge.
  • a touch liquid crystal display panel wherein the touch liquid crystal display panel comprises:
  • TFT array layer disposed above the first substrate
  • a common electrode layer disposed above the TFT array layer, the common electrode layer having a plurality of common electrodes
  • An insulating layer disposed above the common electrode layer for isolating the common electrode layer and the touch layer, the insulating layer having a plurality of through holes;
  • the touch layer is disposed on the insulating layer for receiving a touch signal, wherein the touch layer includes a plurality of touch lines, and the touch lines pass through the corresponding through holes and corresponding Common electrode connection;
  • a dielectric layer disposed above the touch layer for isolating the touch layer and the pixel electrode layer;
  • a pixel electrode layer disposed above the dielectric layer
  • the second substrate disposed above the liquid crystal layer, the second substrate having a black matrix
  • the common electrode includes: a plurality of central common electrodes located in the central area and a plurality of peripheral common electrodes located in the edge area; and the number of peripheral common electrodes of the edge area is greater than the central area under the same unit area a number of central common electrodes; a gap between the peripheral common electrodes is smaller than a gap between the central common electrodes; the edge regions include: an upper edge region, a lower edge region, a left edge region, and a right edge region; The upper edge region, the lower edge region, the left edge region, and the right edge region each include a plurality of rows and columns of the peripheral common electrodes.
  • an area of each of the peripheral common electrodes is smaller than an area of each of the central common electrodes; an area of each of the central common electrodes is 4 times an area of each of the peripheral common electrodes.
  • one end of the touch line is electrically connected to the corresponding common electrode, and the other end is electrically connected to the driving circuit; when the touch liquid crystal display panel is used for display, the touch line is The common electrode provides a common signal; when the touch liquid crystal display panel is used for touch, the driving signal is provided to the common electrode through the touch line, and the touch signal on the common electrode is received.
  • the shape of the peripheral common electrode is a regular shape.
  • a touch liquid crystal display panel, the touch liquid crystal display panel includes:
  • TFT array layer disposed above the first substrate
  • a common electrode layer disposed above the TFT array layer, the common electrode layer having a plurality of common electrodes
  • An insulating layer disposed above the common electrode layer for isolating the common electrode layer and the touch layer, the insulating layer having a plurality of through holes;
  • the touch layer is disposed on the insulating layer for receiving a touch signal, wherein the touch layer includes a plurality of touch lines, and the touch lines pass through the corresponding through holes and corresponding Common electrode connection;
  • a dielectric layer disposed above the touch layer for isolating the touch layer and the pixel electrode layer;
  • a pixel electrode layer disposed above the dielectric layer
  • the second substrate disposed above the liquid crystal layer, the second substrate having a black matrix
  • the common electrode includes: a plurality of central common electrodes located in the central area and a plurality of peripheral common electrodes located in the edge area; and the number of peripheral common electrodes of the edge area is greater than the central area under the same unit area The number of central common electrodes.
  • the area of each of the peripheral common electrodes is smaller than the area of each of the central common electrodes; the area of each of the central common electrodes is 4 times the area of each of the peripheral common electrodes.
  • the edge region includes: an upper edge region, a lower edge region, a left edge region, and a right edge region; wherein the upper edge region, the lower edge region, the left edge region, and the right edge region each include multiple rows A plurality of columns of the peripheral common electrodes.
  • one end of the touch line is electrically connected to the corresponding common electrode, and the other end is electrically connected to the driving circuit; when the touch liquid crystal display panel is used for display, the touch line is given through the touch line.
  • the common electrode provides a common signal; when the touch liquid crystal display panel is used for touch, the driving signal is provided to the common electrode through the touch line, and the touch signal on the common electrode is received.
  • the gap between the peripheral common electrodes is smaller than the gap between the central common electrodes.
  • a touch liquid crystal display device includes a touch liquid crystal display panel and a backlight module, wherein the touch liquid crystal display panel is disposed relative to the backlight module; wherein the touch liquid crystal display
  • the display panel includes:
  • TFT array layer disposed above the first substrate
  • a common electrode layer disposed above the TFT array layer, the common electrode layer having a plurality of common electrodes
  • An insulating layer disposed above the common electrode layer for isolating the common electrode layer and the touch layer, the insulating layer having a plurality of through holes;
  • the touch layer is disposed on the insulating layer for receiving a touch signal, wherein the touch layer includes a plurality of touch lines, and the touch lines pass through the corresponding through holes and corresponding Common electrode connection;
  • a dielectric layer disposed above the touch layer for isolating the touch layer and the pixel electrode layer;
  • a pixel electrode layer disposed above the dielectric layer
  • the second substrate disposed above the liquid crystal layer, the second substrate having a black matrix
  • the common electrode includes: a plurality of central common electrodes located in the central area and a plurality of peripheral common electrodes located in the edge area; and the number of peripheral common electrodes of the edge area is greater than the central area under the same unit area The number of central common electrodes.
  • the area of each of the peripheral common electrodes is smaller than the area of each of the central common electrodes; the area of each of the central common electrodes is 4 times the area of each of the peripheral common electrodes.
  • the edge region includes: an upper edge region, a lower edge region, a left edge region, and a right edge region; wherein the upper edge region, the lower edge region, the left edge region, and the right edge region each include multiple rows A plurality of columns of the peripheral common electrodes.
  • one end of the touch line is electrically connected to the corresponding common electrode, and the other end is electrically connected to the driving circuit; when the touch liquid crystal display panel is used for display, the touch line is given through the touch line.
  • the common electrode provides a common signal; when the touch liquid crystal display panel is used for touch, the driving signal is provided to the common electrode through the touch line, and the touch signal on the common electrode is received.
  • the gap between the peripheral common electrodes is smaller than the gap between the central common electrodes.
  • the present invention divides the common electrode of the edge region into a plurality of small peripheral common electrodes, and each of the peripheral common electrodes is respectively connected to the driving circuit through an independent touch line, and the capacitance of the sub-common electrode is calculated by the driving circuit. Varying amount, reaching smooth edge delta The purpose of C.
  • the touch liquid crystal display panel provided by the invention can improve the problem that the delta C is not smooth due to the lack of the matching capacitance at the edge, and can enhance the touch precision of the edge.
  • FIG. 1 is a schematic structural diagram of a touch display panel provided by the prior art
  • FIG. 2 is a schematic structural diagram of a touch liquid crystal display panel according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a common electrode layer according to Embodiment 1 of the present invention.
  • FIG. 4 is a schematic structural diagram of a common electrode layer according to Embodiment 2 of the present invention.
  • each sub-common electrode is respectively connected to the driving circuit through a separate lead (the touch line mentioned below), through the driving circuit Calculate the amount of capacitance change of the sub-common electrode to achieve a smooth edge delta The purpose of C.
  • FIG. 2 and FIG. 3 are schematic structural diagrams of a touch liquid crystal display panel according to an embodiment of the present invention; for convenience of description, only parts related to the embodiments of the present invention are shown.
  • the touch liquid crystal display panel includes a first substrate 101, a TFT array layer 102, a common electrode layer 103, an insulating layer 104, a touch layer 105, a dielectric layer 106, and a pixel electrode layer 107. a liquid crystal layer 108, and a second substrate 109; wherein the TFT array layer 102 is disposed above the first substrate 101, and the common electrode layer 103 is disposed above the TFT array layer 102, the common The electrode layer 103 has a plurality of common electrodes; for example, the common electrode layer 103 has a plurality of array-distributed common electrodes; the insulating layer 104 is disposed above the common electrode layer 103, and the insulating layer 104 is used for isolation The common electrode layer 103 and the touch layer 105, the insulating layer 104 has a plurality of through holes; the touch layer 105 is disposed on the insulating layer 104, and the touch layer 105 is configured to receive a touch signal;
  • the dielectric layer 106 is used to isolate the touch layer 105 and the pixel electrode layer 107.
  • the pixel electrode layer 107 is disposed on the dielectric layer 106.
  • the liquid crystal layer 108 is disposed on the pixel electrode layer 1 Above the 07;
  • the second substrate 109 is disposed above the liquid crystal layer 108, and the second substrate 109 has a black matrix.
  • the common electrode in the common electrode layer 103 includes: a plurality of central common electrodes 1031 located in the central region and a plurality of peripheral common electrodes 1032 located in the edge regions; The number of peripheral common electrodes 1032 of the edge region is greater than the number of central common electrodes 1031 of the central region.
  • the area of each of the peripheral common electrodes is smaller than the area of each of the central common electrodes; the area of each of the central common electrodes is four times the area of each of the peripheral common electrodes.
  • the central area refers to: a center point of the touch liquid crystal display panel, and a center point and a two-thirds of the area of the touch liquid crystal display panel is a central area, except Outside the central area is the edge area.
  • the area of the touch liquid crystal display panel is not limited to two-thirds, and can be defined according to actual requirements.
  • the number of the peripheral common electrodes 1032 on the same area size is larger than the number of the central common electrodes 1031.
  • the first substrate 101 can be a TFT substrate
  • the second substrate 109 can be a CF substrate.
  • one end of the touch line is electrically connected to the corresponding common electrode, and the other end is electrically connected to the driving circuit.
  • the shape of the peripheral common electrode 1032 is an irregular shape.
  • the peripheral common electrodes 1032 are randomly arranged in the edge regions as long as the peripheral common electrodes 1032 have small gaps and are closely arranged together.
  • the embodiment of the present invention further provides a touch liquid crystal display device, wherein the touch liquid crystal display device includes a touch liquid crystal display panel and a backlight module, and the touch liquid crystal display panel is disposed relative to the backlight module.
  • the touch liquid crystal display panel of the touch liquid crystal display device includes a first substrate 101, a TFT array layer 102, a common electrode layer 103, an insulating layer 104, a touch layer 105, and a dielectric layer.
  • 106 a pixel electrode layer 107, a liquid crystal layer 108, and a second substrate 109; wherein the TFT array layer 102 is disposed above the first substrate 101, and the common electrode layer 103 is disposed on the Above the TFT array layer 102, the common electrode layer 103 has a plurality of common electrodes; for example, the common electrode layer 103 has a plurality of array-distributed common electrodes; the insulating layer 104 is disposed above the common electrode layer 103, The insulating layer 104 is configured to isolate the common electrode layer 103 and the touch layer 105.
  • the insulating layer 104 has a plurality of through holes.
  • the touch layer 105 is disposed on the insulating layer 104.
  • the layer 105 includes a plurality of touch lines, and the touch lines are connected to the corresponding common electrodes through the corresponding through holes; the touch layer 105 is configured to receive a touch signal; and the dielectric layer 106 is disposed on the Above the touch layer 105, the dielectric layer 106 is used to isolate the a touch layer 105 and the pixel electrode layer 107; the pixel electrode layer 107 is disposed above the dielectric layer 106; the liquid crystal layer 108 is disposed above the pixel electrode layer 107; the second substrate 109 is disposed on Above the liquid crystal layer 108, the second substrate 109 has a black matrix.
  • the common electrode in the common electrode layer 103 includes: a plurality of central common electrodes 1031 located in the central region and a plurality of peripheral common electrodes 1032 located in the edge regions; The number of peripheral common electrodes 1032 of the edge region is greater than the number of central common electrodes 1031 of the central region.
  • the area of each of the peripheral common electrodes is smaller than the area of each of the central common electrodes; the area of each of the central common electrodes is four times the area of each of the peripheral common electrodes.
  • the edge region includes: an upper edge region, a lower edge region, a left edge region, and a right edge region; wherein the upper edge region, the lower edge region, the left edge region, and the right edge region
  • Each of the peripheral common electrodes includes a plurality of rows and a plurality of columns.
  • the shape of the peripheral common electrode is a regular shape or an irregular shape.
  • a gap between the peripheral common electrodes is smaller than a gap between the central common electrodes.
  • one end of the touch line is electrically connected to the corresponding common electrode, and the other end is electrically connected to the driving circuit.
  • the common electrode serves as the Vcom in the display phase
  • the common electrode serves as the touch signal in the touch phase.
  • the control circuit provides a common signal to the common electrode through the touch line.
  • the control circuit provides a driving signal to the common electrode through the touch line, and receives a touch signal on the common electrode.
  • each of the peripheral common electrodes is connected to the driving circuit through independent touch lines, and the capacitance variation of the sub-common electrodes is calculated by the driving circuit.
  • the touch liquid crystal display panel provided by the invention can improve the problem that the delta C is not smooth due to the lack of the matching capacitance at the edge, and can enhance the touch precision of the edge.

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  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Crystallography & Structural Chemistry (AREA)
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Abstract

一种触控液晶显示面板，包括：第一基板（101）；TFT阵列层（102）；公共电极层（103），具有公共电极；绝缘层（104）；触控层（105）；介质层（106）；像素电极层（107）；液晶层（108）；第二基板（109）；公共电极包括：位于中心区域的中心公共电极（1031）以及位于边缘区域的周边公共电极（1032）；在相同单位面积下，边缘区域的周边公共电极（1032）的数量多于中心区域的中心公共电极（1031）的数量。该结构增强了边缘的触控精准度。

Description

一种触控液晶显示面板及触控液晶显示装置 技术领域
本发明涉及显示技术领域，特别涉及一种触控液晶显示面板及触控液晶显示装置。
 背景技术
随着智能手机市场竞争的激烈化程度的日渐加深，产品轻薄化的结构设计成为目前手机生产厂商所关注的重点之一，在触显一体化的主流手机品种中，为了减薄TP（Touch panel，触摸屏）带来的额外厚度，面板厂商致力于产品减薄方案的研究及开发，Full in-cell技术被认为是触控技术减薄方案的最终方案。
请参阅图1，为现有技术提供的触控显示面板的结构示意图，将阵列基板上的公共电极10图形化成矩阵式的棋盘格格式，通过金属引线20将所述公共电极10连接到驱动电路30，采用触控和显示分时驱动的方式设计驱动电路，以达成减少杂讯信号的处理的目的，并且为了提高显示扫描的时间，使显示屏可以往更高的分辨率发展，触控扫描方式采用同发同收的方式进行。
由于in cell技术一般不采用传感器外延的形式改善边缘触控灵敏度，故边缘处触控灵敏度较差，这主要是由于边缘处没有相应的传感器做对比，边缘处delta C不平滑，影响了边缘处的触控精准度。
故，有必要提出一种新的技术方案，以解决上述技术问题。
 技术问题
本发明的目的在于提供一种触控液晶显示面板及触控液晶显示装置，旨在解决现有由于边缘处没有相应的传感器做对比，边缘处delta C不平滑，影响了边缘处的触控精准度的问题。
 技术解决方案
一种触控液晶显示面板，其中所述触控液晶显示面板包括：
一第一基板；
一TFT阵列层，设置于所述第一基板上方；
一公共电极层，设置于所述TFT阵列层上方，所述公共电极层具有多个公共电极；
一绝缘层，设置于所述公共电极层上方，用于隔离所述公共电极层和触控层，所述绝缘层具有多个通孔；
一所述触控层，设置于所述绝缘层上，用于接收触控信号；其中，所述触控层包括多条触控线，所述触控线通过相应的所述通孔与相应的公共电极连接；
一介质层，设置于所述触控层上方，用于隔离所述触控层和像素电极层；
一所述像素电极层，设置于所述介质层上方；
一液晶层，设置于所述像素电极层上方；以及
一第二基板，设置于所述液晶层上方，所述第二基板具有黑色矩阵；
其中，所述公共电极包括：位于中心区域的多个中心公共电极以及位于边缘区域的多个周边公共电极；在相同单位面积下，所述边缘区域的周边公共电极的数量多于所述中心区域的中心公共电极的数量；所述周边公共电极之间的间隙小于所述中心公共电极之间的间隙；所述边缘区域包括：上边缘区域、下边缘区域、左边缘区域、以及右边缘区域；其中，所述上边缘区域、下边缘区域、左边缘区域、以及右边缘区域均包括多行多列的所述周边公共电极。
优选的，其中每一个所述周边公共电极的面积小于每一个所述中心公共电极的面积；每一个所述中心公共电极的面积是每一个所述周边公共电极的面积的4倍。
优选的，其中所述触控线一端与相应的所述公共电极电性连接，另一端与驱动电路电性连接；当所述触控液晶显示面板用于显示时，通过所述触控线给所述公共电极提供公共信号；当所述触控液晶显示面板用于触控时，通过所述触控线给所述公共电极提供驱动信号，并接收所述公共电极上的触控信号。
优选的，其中所述周边公共电极的形状为规则的形状。
优选的，其中所述周边公共电极的形状为不规则的形状。
一种触控液晶显示面板，所述触控液晶显示面板包括：
一第一基板；
一TFT阵列层，设置于所述第一基板上方；
一公共电极层，设置于所述TFT阵列层上方，所述公共电极层具有多个公共电极；
一绝缘层，设置于所述公共电极层上方，用于隔离所述公共电极层和触控层，所述绝缘层具有多个通孔；
一所述触控层，设置于所述绝缘层上，用于接收触控信号；其中，所述触控层包括多条触控线，所述触控线通过相应的所述通孔与相应的公共电极连接；
一介质层，设置于所述触控层上方，用于隔离所述触控层和像素电极层；
一所述像素电极层，设置于所述介质层上方；
一液晶层，设置于所述像素电极层上方；以及
一第二基板，设置于所述液晶层上方，所述第二基板具有黑色矩阵；
其中，所述公共电极包括：位于中心区域的多个中心公共电极以及位于边缘区域的多个周边公共电极；在相同单位面积下，所述边缘区域的周边公共电极的数量多于所述中心区域的中心公共电极的数量。
优选的，每一个所述周边公共电极的面积小于每一个所述中心公共电极的面积；每一个所述中心公共电极的面积是每一个所述周边公共电极的面积的4倍。
优选的，所述边缘区域包括：上边缘区域、下边缘区域、左边缘区域、以及右边缘区域；其中，所述上边缘区域、下边缘区域、左边缘区域、以及右边缘区域均包括多行多列的所述周边公共电极。
优选的，所述触控线一端与相应的所述公共电极电性连接，另一端与驱动电路电性连接；当所述触控液晶显示面板用于显示时，通过所述触控线给所述公共电极提供公共信号；当所述触控液晶显示面板用于触控时，通过所述触控线给所述公共电极提供驱动信号，并接收所述公共电极上的触控信号。
优选的，所述周边公共电极之间的间隙小于所述中心公共电极之间的间隙。
一种触控液晶显示装置，所述触控液晶显示装置包括触控液晶显示面板及背光模组，所述触控液晶显示面板相对于所述背光模组来设置；其中，所述触控液晶显示面板包括：
一第一基板；
一TFT阵列层，设置于所述第一基板上方；
一公共电极层，设置于所述TFT阵列层上方，所述公共电极层具有多个公共电极；
一绝缘层，设置于所述公共电极层上方，用于隔离所述公共电极层和触控层，所述绝缘层具有多个通孔；
一所述触控层，设置于所述绝缘层上，用于接收触控信号；其中，所述触控层包括多条触控线，所述触控线通过相应的所述通孔与相应的公共电极连接；
一介质层，设置于所述触控层上方，用于隔离所述触控层和像素电极层；
一所述像素电极层，设置于所述介质层上方；
一液晶层，设置于所述像素电极层上方；以及
一第二基板，设置于所述液晶层上方，所述第二基板具有黑色矩阵；
其中，所述公共电极包括：位于中心区域的多个中心公共电极以及位于边缘区域的多个周边公共电极；在相同单位面积下，所述边缘区域的周边公共电极的数量多于所述中心区域的中心公共电极的数量。
优选的，每一个所述周边公共电极的面积小于每一个所述中心公共电极的面积；每一个所述中心公共电极的面积是每一个所述周边公共电极的面积的4倍。
优选的，所述边缘区域包括：上边缘区域、下边缘区域、左边缘区域、以及右边缘区域；其中，所述上边缘区域、下边缘区域、左边缘区域、以及右边缘区域均包括多行多列的所述周边公共电极。
优选的，所述触控线一端与相应的所述公共电极电性连接，另一端与驱动电路电性连接；当所述触控液晶显示面板用于显示时，通过所述触控线给所述公共电极提供公共信号；当所述触控液晶显示面板用于触控时，通过所述触控线给所述公共电极提供驱动信号，并接收所述公共电极上的触控信号。
优选的，所述周边公共电极之间的间隙小于所述中心公共电极之间的间隙。
 有益效果
相对现有技术，本发明通过将边缘区域的公共电极划分为多个小的周边公共电极，每个周边公共电极分别通过独立的触控线连接至驱动电路，通过驱动电路计算子公共电极的电容变化量，达到平滑边缘delta C的目的。本发明提供的触控液晶显示面板能够改善边缘处由于缺少比对电容而引起的delta C的不平滑的问题，能够增强边缘的触控精准度。
 附图说明
图1为现有技术提供的触控显示面板的结构示意图；
图2为本发明实施例提供的触控液晶显示面板的结构示意图；
图3为本发明实施例一提供的公共电极层的结构示意图；
图4为本发明实施例二提供的公共电极层的结构示意图。
 本发明的最佳实施方式
本说明书所使用的词语“实施例”意指用作实例、示例或例证。此外，本说明书和所附权利要求中所使用的冠词“一”一般地可以被解释为意指“一个或多个”，除非另外指定或从上下文清楚导向单数形式。
在本发明实施例中，通过将边缘区域的公共电极划分为多个小的子公共电极，每个子公共电极分别通过独立的引线（下文提到的触控线）连接至驱动电路，通过驱动电路计算子公共电极的电容变化量，达到平滑边缘delta C的目的。
实施例一
请一并参阅图2及图3，为本发明实施例提供的触控液晶显示面板的结构示意图；为了便于说明，仅示出了与本发明实施例相关的部分。
所述触控液晶显示面板包括：一第一基板101、一TFT阵列层102、一公共电极层103、一绝缘层104、一触控层105、一介质层106、一所述像素电极层107、一液晶层108、以及一第二基板109；其中，所述TFT阵列层102设置于所述第一基板101上方，所述公共电极层103设置于所述TFT阵列层102上方，所述公共电极层103具有多个公共电极；例如，所述公共电极层103具有多个阵列分布的公共电极；所述绝缘层104设置于所述公共电极层103上方，所述绝缘层104用于隔离所述公共电极层103和触控层105，所述绝缘层104具有多个通孔；所述触控层105设置于所述绝缘层104上，所述触控层105用于接收触控信号；所述介质层106设置于所述触控层105上方，所述介质层106用于隔离所述触控层105和所述像素电极层107；所述像素电极层107设置于所述介质层106上方；所述液晶层108设置于所述像素电极层107上方；所述第二基板109设置于所述液晶层108上方，所述第二基板109具有黑色矩阵。
在本发明实施例中，所述公共电极层103中的所述公共电极包括：位于中心区域的多个中心公共电极1031以及位于边缘区域的多个周边公共电极1032；在相同单位面积下，所述边缘区域的周边公共电极1032的数量多于所述中心区域的中心公共电极1031的数量。
在本发明实施例中，每一个所述周边公共电极的面积小于每一个所述中心公共电极的面积；每一个所述中心公共电极的面积是每一个所述周边公共电极的面积的4倍。例如，其中，所述中心区域指的是：以所述触控液晶显示面板的中心点为准，包括中心点且占三分之二所述触控液晶显示面板的区域即为中心区域，除所述中心区域之外的即为边缘区域。然而，可以理解的是，并不限于占三分之二所述触控液晶显示面板的区域，可根据实际要求进行限定。
在本发明实施例中，相同面积大小上的所述周边公共电极1032的个数多于所述中心公共电极1031的个数。例如，一平方厘米上有四个所述周边公共电极1032，而所述中心公共电极1031只有一个。
在本发明实施例中，所述周边公共电极1032的形状为规则的形状。例如，所述周边公共电极1032的形状为矩形、圆形、梯形等。
在本发明实施例中，所述周边公共电极之间的间隙小于所述中心公共电极之间的间隙。
请参阅图3，作为本发明一优选实施例，所述边缘区域包括：上边缘区域、下边缘区域、左边缘区域、以及右边缘区域；其中，上边缘区域和下边缘区域均包括多行多列的所述周边公共电极1032；左边缘区域和右边缘区域均包括多行多列的所述周边公共电极1032。这些所述周边公共电极1032呈阵列排列，例如，上边缘区域和下边缘区域均包括2行10列的所述周边公共电极1032，左边缘区域和右边缘区域均包括10行2列的所述周边公共电极1032。
在本发明实施例中，所述触控层105包括多条触控线1041，所述触控线与相应的公共电极连接。具体的，所述触控线1041通过所述绝缘层104上相应的所述通孔与相应的公共电极连接；即每一个公共电极对应一条触控线。
然而，可以理解的是，所述第一基板101可以为TFT基板，所述第二基板109可以为CF基板。
在本发明实施例中，所述触控线一端与相应的所述公共电极电性连接，另一端与驱动电路电性连接。
在本发明实施例中，将所述触控线与所述公共电极层的公共电极连接，另一端与驱动电路电性连接，从而实现当触控液晶显示面板用于显示时，控制电路通过所述触控线给所述公共电极提供公共信号；当所述触控液晶显示面板用于触控时，控制电路通过所述触控线给所述公共电极提供驱动信号，并接收所述公共电极上的触控信号。
实施例二
请参阅图4，图4为本发明实施例提供的公共电极层的另一结构示意图；为了便于说明，仅示出了与本发明实施例相关的部分。本实施例二与上述实施例一相似，不同之处在于：
在本发明实施例中，所述周边公共电极1032的形状为不规则的形状。然而，可以理解的是，这些所述周边公共电极1032在所述边缘区域呈无规则排列，只要这些所述周边公共电极1032之间具有较小的间隙，且紧密排列在一起即可。
本发明实施例还提供了一种触控液晶显示装置，所述触控液晶显示装置包括触控液晶显示面板及背光模组，所述触控液晶显示面板相对于所述背光模组来设置。
所述触控液晶显示装置中的所述触控液晶显示面板包括：一第一基板101、一TFT阵列层102、一公共电极层103、一绝缘层104、一触控层105、一介质层106、一所述像素电极层107、一液晶层108、以及一第二基板109；其中，所述TFT阵列层102设置于所述第一基板101上方，所述公共电极层103设置于所述TFT阵列层102上方，所述公共电极层103具有多个公共电极；例如，所述公共电极层103具有多个阵列分布的公共电极；所述绝缘层104设置于所述公共电极层103上方，所述绝缘层104用于隔离所述公共电极层103和触控层105，所述绝缘层104具有多个通孔；所述触控层105设置于所述绝缘层104上，所述触控层105包括多条触控线，所述触控线通过相应的所述通孔与相应的公共电极连接；所述触控层105用于接收触控信号；所述介质层106设置于所述触控层105上方，所述介质层106用于隔离所述触控层105和所述像素电极层107；所述像素电极层107设置于所述介质层106上方；所述液晶层108设置于所述像素电极层107上方；所述第二基板109设置于所述液晶层108上方，所述第二基板109具有黑色矩阵。
在本发明实施例中，所述公共电极层103中的所述公共电极包括：位于中心区域的多个中心公共电极1031以及位于边缘区域的多个周边公共电极1032；在相同单位面积下，所述边缘区域的周边公共电极1032的数量多于所述中心区域的中心公共电极1031的数量。
在本发明实施例中，每一个所述周边公共电极的面积小于每一个所述中心公共电极的面积；每一个所述中心公共电极的面积是每一个所述周边公共电极的面积的4倍。
在本发明实施例中，所述边缘区域包括：上边缘区域、下边缘区域、左边缘区域、以及右边缘区域；其中，所述上边缘区域、下边缘区域、左边缘区域、以及右边缘区域均包括多行多列的所述周边公共电极。
在本发明实施例中，所述周边公共电极的形状为规则的形状或为不规则的形状。
在本发明实施例中，所述周边公共电极之间的间隙小于所述中心公共电极之间的间隙。
在本发明实施例中，所述触控线一端与相应的所述公共电极电性连接，另一端与驱动电路电性连接。在所述的触控液晶显示装置中，需要采用触控与显示分时扫描的方式，因此，公共电极既作为显示阶段的Vcom，所述公共电极又作为触控阶段的触控信号。当所述触控液晶显示面板用于显示时，控制电路通过所述触控线给所述公共电极提供公共信号。当所述触控液晶显示面板用于触控时，控制电路通过所述触控线给所述公共电极提供驱动信号，并接收所述公共电极上的触控信号。
综上所述，通过将边缘区域的公共电极划分为多个小的周边公共电极，每个周边公共电极分别通过独立的触控线连接至驱动电路，通过驱动电路计算子公共电极的电容变化量，达到平滑边缘delta C的目的。本发明提供的触控液晶显示面板能够改善边缘处由于缺少比对电容而引起的delta C的不平滑的问题，能够增强边缘的触控精准度。
尽管已经相对于一个或多个实现方式示出并描述了本发明，但是本领域技术人员基于对本说明书和附图的阅读和理解将会想到等价变型和修改。本发明包括所有这样的修改和变型，并且仅由所附权利要求的范围限制。特别地关于由上述组件执行的各种功能，用于描述这样的组件的术语旨在对应于执行所述组件的指定功能（例如其在功能上是等价的）的任意组件（除非另外指示），即使在结构上与执行本文所示的本说明书的示范性实现方式中的功能的公开结构不等同。此外，尽管本说明书的特定特征已经相对于若干实现方式中的仅一个被公开，但是这种特征可以与如可以对给定或特定应用而言是期望和有利的其他实现方式的一个或多个其他特征组合。而且，就术语“包括”、“具有”、“含有”或其变形被用在具体实施方式或权利要求中而言，这样的术语旨在以与术语“包含”相似的方式包括。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (15)

  1. 一种触控液晶显示面板，其中所述触控液晶显示面板包括：
    一第一基板；
    一TFT阵列层，设置于所述第一基板上方；
    一公共电极层，设置于所述TFT阵列层上方，所述公共电极层具有多个公共电极；
    一绝缘层，设置于所述公共电极层上方，用于隔离所述公共电极层和触控层，所述绝缘层具有多个通孔；
    一所述触控层，设置于所述绝缘层上，用于接收触控信号；其中，所述触控层包括多条触控线，所述触控线通过相应的所述通孔与相应的公共电极连接；
    一介质层，设置于所述触控层上方，用于隔离所述触控层和像素电极层；
    一所述像素电极层，设置于所述介质层上方；
    一液晶层，设置于所述像素电极层上方；以及
    一第二基板，设置于所述液晶层上方，所述第二基板具有黑色矩阵；
    其中，所述公共电极包括：位于中心区域的多个中心公共电极以及位于边缘区域的多个周边公共电极；在相同单位面积下，所述边缘区域的周边公共电极的数量多于所述中心区域的中心公共电极的数量；所述周边公共电极之间的间隙小于所述中心公共电极之间的间隙；所述边缘区域包括：上边缘区域、下边缘区域、左边缘区域、以及右边缘区域；其中，所述上边缘区域、下边缘区域、左边缘区域、以及右边缘区域均包括多行多列的所述周边公共电极。
  2. 根据权利要求1所述的触控液晶显示面板，其中每一个所述周边公共电极的面积小于每一个所述中心公共电极的面积；每一个所述中心公共电极的面积是每一个所述周边公共电极的面积的4倍。
  3. 根据权利要求1所述的触控液晶显示面板，其中所述触控线一端与相应的所述公共电极电性连接，另一端与驱动电路电性连接；当所述触控液晶显示面板用于显示时，通过所述触控线给所述公共电极提供公共信号；当所述触控液晶显示面板用于触控时，通过所述触控线给所述公共电极提供驱动信号，并接收所述公共电极上的触控信号。
  4. 根据权利要求1所述的触控液晶显示面板，其中所述周边公共电极的形状为规则的形状。
  5. 根据权利要求1所述的触控液晶显示面板，其中所述周边公共电极的形状为不规则的形状。
  6. 一种触控液晶显示面板，其中所述触控液晶显示面板包括：
    一第一基板；
    一TFT阵列层，设置于所述第一基板上方；
    一公共电极层，设置于所述TFT阵列层上方，所述公共电极层具有多个公共电极；
    一绝缘层，设置于所述公共电极层上方，用于隔离所述公共电极层和触控层，所述绝缘层具有多个通孔；
    一所述触控层，设置于所述绝缘层上，用于接收触控信号；其中，所述触控层包括多条触控线，所述触控线通过相应的所述通孔与相应的公共电极连接；
    一介质层，设置于所述触控层上方，用于隔离所述触控层和像素电极层；
    一所述像素电极层，设置于所述介质层上方；
    一液晶层，设置于所述像素电极层上方；以及
    一第二基板，设置于所述液晶层上方，所述第二基板具有黑色矩阵；
    其中，所述公共电极包括：位于中心区域的多个中心公共电极以及位于边缘区域的多个周边公共电极；在相同单位面积下，所述边缘区域的周边公共电极的数量多于所述中心区域的中心公共电极的数量。
  7. 根据权利要求6所述的触控液晶显示面板，其中每一个所述周边公共电极的面积小于每一个所述中心公共电极的面积；每一个所述中心公共电极的面积是每一个所述周边公共电极的面积的4倍。
  8. 根据权利要求6所述的触控液晶显示面板，其中所述边缘区域包括：上边缘区域、下边缘区域、左边缘区域、以及右边缘区域；其中，所述上边缘区域、下边缘区域、左边缘区域、以及右边缘区域均包括多行多列的所述周边公共电极。
  9. 根据权利要求6所述的触控液晶显示面板，其中所述触控线一端与相应的所述公共电极电性连接，另一端与驱动电路电性连接；当所述触控液晶显示面板用于显示时，通过所述触控线给所述公共电极提供公共信号；当所述触控液晶显示面板用于触控时，通过所述触控线给所述公共电极提供驱动信号，并接收所述公共电极上的触控信号。
  10. 根据权利要求6所述的触控液晶显示面板，其中所述周边公共电极之间的间隙小于所述中心公共电极之间的间隙。
  11. 一种触控液晶显示装置，其中所述触控液晶显示装置包括触控液晶显示面板及背光模组，所述触控液晶显示面板相对于所述背光模组来设置；其中，所述触控液晶显示面板包括：
    一第一基板；
    一TFT阵列层，设置于所述第一基板上方；
    一公共电极层，设置于所述TFT阵列层上方，所述公共电极层具有多个公共电极；
    一绝缘层，设置于所述公共电极层上方，用于隔离所述公共电极层和触控层，所述绝缘层具有多个通孔；
    一所述触控层，设置于所述绝缘层上，用于接收触控信号；其中，所述触控层包括多条触控线，所述触控线通过相应的所述通孔与相应的公共电极连接；
    一介质层，设置于所述触控层上方，用于隔离所述触控层和像素电极层；
    一所述像素电极层，设置于所述介质层上方；
    一液晶层，设置于所述像素电极层上方；以及
    一第二基板，设置于所述液晶层上方，所述第二基板具有黑色矩阵；
    其中，所述公共电极包括：位于中心区域的多个中心公共电极以及位于边缘区域的多个周边公共电极；在相同单位面积下，所述边缘区域的周边公共电极的数量多于所述中心区域的中心公共电极的数量。
  12. 根据权利要求11所述的触控液晶显示装置，其中每一个所述周边公共电极的面积小于每一个所述中心公共电极的面积；每一个所述中心公共电极的面积是每一个所述周边公共电极的面积的4倍。
  13. 根据权利要求11所述的触控液晶显示装置，其中所述边缘区域包括：上边缘区域、下边缘区域、左边缘区域、以及右边缘区域；其中，所述上边缘区域、下边缘区域、左边缘区域、以及右边缘区域均包括多行多列的所述周边公共电极。
  14. 根据权利要求11所述的触控液晶显示装置，其中所述触控线一端与相应的所述公共电极电性连接，另一端与驱动电路电性连接；当所述触控液晶显示面板用于显示时，通过所述触控线给所述公共电极提供公共信号；当所述触控液晶显示面板用于触控时，通过所述触控线给所述公共电极提供驱动信号，并接收所述公共电极上的触控信号。
  15. 根据权利要求11所述的触控液晶显示装置，其中所述周边公共电极之间的间隙小于所述中心公共电极之间的间隙。
PCT/CN2015/075911 2015-03-30 2015-04-03 一种触控液晶显示面板及触控液晶显示装置 Ceased WO2016155016A1 (zh)

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CN107608560B (zh) * 2017-10-20 2020-04-24 武汉天马微电子有限公司 一种触控显示面板及显示装置
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