WO2015039382A1 - 一种内嵌式触摸屏及显示装置 - Google Patents

一种内嵌式触摸屏及显示装置 Download PDF

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Publication number
WO2015039382A1
WO2015039382A1 PCT/CN2013/088466 CN2013088466W WO2015039382A1 WO 2015039382 A1 WO2015039382 A1 WO 2015039382A1 CN 2013088466 W CN2013088466 W CN 2013088466W WO 2015039382 A1 WO2015039382 A1 WO 2015039382A1
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WO
WIPO (PCT)
Prior art keywords
touch sensing
touch
electrode
sensing electrode
black matrix
Prior art date
Application number
PCT/CN2013/088466
Other languages
English (en)
French (fr)
Inventor
孙建
郝学光
王学路
李成
Original Assignee
京东方科技集团股份有限公司
鄂尔多斯市源盛光电有限责任公司
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Application filed by 京东方科技集团股份有限公司, 鄂尔多斯市源盛光电有限责任公司 filed Critical 京东方科技集团股份有限公司
Priority to US14/368,642 priority Critical patent/US10261617B2/en
Publication of WO2015039382A1 publication Critical patent/WO2015039382A1/zh

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Classifications

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    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
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    • 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
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    • 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
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    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
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    • 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
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    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
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Definitions

  • the present invention relates to the field of display technologies, and in particular, to an in-cell touch panel and a display device. Background technique
  • In cell Touch Panel A touch screen that integrates the touch screen and display. That is, the touch driving electrode and the touch sensing electrode are integrated in the display screen, and the in-cell touch screen can simultaneously realize the functions of touch and image display. Since the in-cell touch panel has the characteristics of simple structure, lightness, thinness, low cost, etc., it has gradually become the mainstream in the field of display technology.
  • a common touch driving electrode and a touch sensing electrode are electrodes that are parallel to the gate scanning line and electrodes parallel to the data signal line in the region of the array substrate corresponding to the black matrix.
  • a conventional in-cell touch panel includes: a plurality of laterally distributed gate scan lines 10, a plurality of longitudinally distributed data signal lines 20, and a gate scan line 10 and a data signal line 20 a sub-pixel unit, such as a red sub-pixel unit (R), a green sub-pixel unit (G), and a blue sub-pixel unit (B) in FIG. 1; a plurality of sub-pixel units arranged in a matrix; A touch driving electrode 30 parallel to the gate scanning line 10 between the adjacent two sub-pixel units, and a touch sensing electrode 40 parallel to the data signal line 20 between the adjacent two sub-pixel units.
  • the touch driving electrode 30 and the touch sensing electrode 40 are opaque electrodes and are located in non-display areas between adjacent sub-pixel units.
  • the embodiment of the invention provides an in-cell touch panel and a display device for improving the aperture ratio of the in-cell touch panel.
  • An in-cell touch panel includes an upper substrate and a lower substrate, and further includes: a black matrix layer and a touch sensing junction disposed between the upper substrate and the lower substrate Structure; among them,
  • An orthographic projection of the graphic of the touch sensing structure layer on the lower substrate is located in a region where the graphic of the black matrix layer is located;
  • the touch sensing structure layer includes: a first touch sensing electrode and a second touch sensing electrode disposed in the same layer and insulated from each other; and the first touch sensing electrode is touched during the touch time period Controlling the scan signal, the second touch sensing electrode is coupled to the touch scan signal and outputting; or loading the second touch sensing electrode with a touch scan signal, the first touch sensing electrode coupling the touch Control the scan signal and output.
  • a touch sensing structure layer for implementing a touch function is added between the upper substrate and the lower substrate, and the touch sensing structure layer includes: the same layer is disposed, and is insulated from each other.
  • the first touch sensing electrode and the second touch sensing electrode are disposed in an overlapping manner, and the orthographic projection of the added touch sensing structure layer on the lower substrate is located in the area of the graphic of the black matrix layer, thereby avoiding occupying the aperture ratio of the pixel unit .
  • the black matrix layer is located on a side of the upper substrate facing the lower substrate, and a color resin layer is further disposed on the black matrix layer;
  • the touch sensing structure layer is located between the upper substrate and the black matrix layer, between the black matrix layer and the colored resin layer, or on the colored resin layer.
  • the first touch sensing electrode is composed of a plurality of first touch sensing sub-electrodes independent of each other, the first touch sensing sub-electrode and the The second touch sensing electrodes are spaced apart; the first touch sensing sub-electrodes belonging to the same first touch sensing electrode and located on opposite sides of the second touch sensing electrode are electrically connected by a bridge wire; or
  • the second touch sensing electrode is composed of a plurality of second touch sensing sub-electrodes independently of each other, and the second touch sensing sub-electrode is spaced apart from the first touch sensing electrode;
  • the second touch sensing sub-electrodes of the measuring electrodes and located on both sides of the first touch sensing electrode are electrically connected by a bridge wire.
  • the orthographic projection of the bridge line on the lower substrate is located in a region where the pattern of the black matrix layer is located.
  • a first floating is disposed between two adjacent first touch sensing electrodes. Electrodes; and/or, in order to avoid signal interference between the respective first touch sensing electrodes, A second floating electrode is disposed between two adjacent second touch sensing electrodes.
  • the orthographic projection of the first floating electrode on the lower substrate is located in a region where the pattern of the black matrix layer is located;
  • An orthographic projection of the second floating electrode on the lower substrate is located in a region of the pattern of the black matrix layer.
  • the materials of the first touch sensing electrode and the second touch sensing electrode are metal materials or transparent conductive oxide materials.
  • the embodiment of the invention further provides a display device, which comprises the above-mentioned embedded touch screen provided by the embodiment of the invention.
  • FIG. 1 is a schematic structural view of a conventional in-cell touch panel
  • FIG. 2 is a side view of an in-cell touch panel according to an embodiment of the present invention.
  • FIG. 3a and 3b are schematic top views of an in-cell touch panel according to an embodiment of the present invention.
  • FIG. 4 is a timing diagram of an in-cell touch panel implementing a touch function according to an embodiment of the present invention.
  • the embodiment of the invention provides an in-cell touch panel and a display device for improving the aperture ratio of the in-cell touch panel.
  • the first step is to introduce the working principle of the in-line touch screen.
  • the finger changes the coupling capacitance between adjacent electrodes, and the touch point position is determined by detecting the change value of the touch point coupling capacitance.
  • a touch sensing structure layer for implementing a touch function is added between the upper substrate and the lower substrate, and the touch sensing structure layer includes: the same layer is disposed, insulated from each other, and intersected The first touch sensing electrode and the second touch sensing electrode are disposed, and the orthographic projection of the added touch sensing structure layer on the lower substrate is located in the region of the black matrix layer, thereby avoiding occupying the aperture ratio of the pixel unit. And the first touch sensing electrode and the second touch sensing electrode are disposed on the same layer to reduce the thickness of the touch screen.
  • An in-cell touch panel provided by an embodiment of the present invention, as shown in FIG. 2, includes an upper substrate 1 and a lower substrate 2 opposite to each other, and further includes: a black matrix layer disposed between the upper substrate 1 and the lower substrate 2 3 And a touch sensing structure layer 4; wherein
  • the orthographic projection of the pattern of the touch sensing structure layer 4 on the lower substrate 2 is located in the region of the pattern of the black matrix layer 3;
  • the touch sensing structure layer 4 specifically includes: a first touch sensing electrode 41 and a second touch sensing electrode 42 which are disposed in the same layer, are insulated from each other and are disposed in a crossover manner;
  • the first touch sensing electrode 41 is loaded with a touch scan signal
  • the second touch sensing electrode 42 is coupled to the touch scan signal and output; or the second touch sensing electrode 42 is loaded with a touch scan signal, the first touch sensing electrode 41 couples the touch scan signal and outputs it.
  • the first touch sensing electrode 41 may be a touch sensing electrode (Rx, receive ), and the second touch sensing electrode 42 is correspondingly a touch driving electrode (Tx, Transport ); otherwise, the first touch sensing electrode
  • the touch sensing electrode Tx is correspondingly the touch sensing electrode Rx, which is not limited herein.
  • a transparent conductive oxide material such as indium tin oxide (ITO) may be used. It can also be made of a metal material such as A1 and Mo, and will not be described herein.
  • the color resin layer 5 (such as the R, G, and B resin layers in FIG. 2) and the black matrix layer 3 are disposed on the lower substrate 2;
  • the structure of the upper substrate 1 that is, the color filter substrate, the color resin layers 5 are separated from each other by the pattern of the black matrix layer 3 , and of course, the color resin layer and the black matrix layer are disposed in the lower substrate.
  • the above touch screen provided by the embodiment of the present invention will be described below by taking the structure in which the above substrate 1 is a color filter substrate as an example.
  • a black matrix layer 3 is disposed on a side of the upper substrate 1 facing the lower substrate 2, and a color resin layer 5 is disposed on the black matrix 3.
  • the touch sensing structure layer 4 may be disposed on the upper substrate 1 face down.
  • One side of the substrate 2, specifically, the touch sensing structure layer 4 may be located between the upper substrate 1 and the black matrix layer 3, or may be located between the black matrix layer 3 and the colored resin layer 5, or as shown in FIG. Located above the colored resin layer 5.
  • the touch sensing structure layer 4 may also be disposed on a side of the lower substrate 2 facing the upper substrate 1, which is not limited herein.
  • the first touch sensing electrode 41 may be disposed to extend in the lateral direction.
  • the second touch sensing electrode 42 is disposed to extend in the longitudinal direction, and vice versa. The following is a case where the first touch sensing electrode 41 extends in the lateral direction, and the second touch sensing electrode 42 extends in the longitudinal direction. As an example, it will be explained.
  • the first touch sensing is performed as shown in FIG. 3a.
  • the electrode 41 may be composed of a plurality of first touch sensing sub-electrodes 411 that are independent of each other, and the first touch sensing sub-electrode 411 is spaced apart from the second touch sensing electrode 42; belongs to the same first touch sensing electrode 41 and is located at the same
  • the first touch sensing sub-electrodes 411 on both sides of the two touch sensing electrodes 42 are electrically connected through the bridge wires 412.
  • the bridge wire 412 is located at a different layer from the first touch sensing sub-electrode 411, it can be connected through the via hole 413, and the bridge wire 412 and the second touch sensing electrode 42 are insulated from each other.
  • the second touch sensing electrode 42 is composed of a plurality of second touch sensing sub-electrodes 421 independent of each other, and the second touch sensing sub-electrode 421 and the first touch sense
  • the second electrode sensing sub-electrodes 421 belonging to the same second touch sensing electrode 42 and located on both sides of the first touch sensing electrode 41 are electrically connected by a bridge wire 422.
  • the bridge wire 422 and the second touch sensing sub-electrode 421 are located at different layers, they can be connected through the via 423, and the bridge wire 422 and the first touch sensing electrode 41 are insulated from each other.
  • the bridge 422 connecting the second touch sensing sub-electrodes 421 does not occupy the aperture ratio, and the bridge wires 412 and 422 are generally disposed to coincide with the pattern of the black matrix layer, that is, the bridge wires 412 and 422 are positive on the lower substrate 2.
  • the projection is located in the area of the pattern of the black matrix layer 3.
  • the bridge wire provided by the embodiment of the present invention is located at different layers from the first touch sensing electrode and the second touch sensing electrode. Therefore, the bridge wire can be disposed on two adjacent layers with insulating layers. In addition, the bridge wire can also be disposed in the same layer as the black matrix layer, which is not limited herein.
  • first floating electrode 6 may also be provided. The first floating electrode 6 is grounded during the touch period.
  • a second floating electrode 7 may be disposed between the adjacent two second touch sensing electrodes 42 . . During the touch period, the second floating electrode 7 is grounded.
  • the first floating electrode 6 and the second floating electrode 7 are disposed to coincide with the pattern of the black matrix layer, That is, as shown in FIG. 3a, the orthographic projection of the first floating electrode 6 on the lower substrate 2 is located on the black matrix layer 3.
  • the shape of the second floating electrode 7 on the lower substrate 2 is located in the region of the pattern of the black matrix layer 3.
  • V-sync is a timing signal. Including n gate lines, which are Gate 1 , Gate 2 , Gate m, Gate m+1, Gate m+1, Gate Line m+2
  • the time for displaying one frame of image is 16.7 ms.
  • the first 11.7 ms is the display time period
  • the last 5 ms is the touch time period.
  • the gate voltage is applied to the gate line in the first 11.7 ms.
  • data signals are sequentially applied to the data lines to realize image display.
  • a low level signal is applied to the gate line and the data line within 5 ms, so that the TFT connected to the gate line is turned off.
  • a certain touch driving voltage VI is applied to the touch driving electrode Tx in turn, and a constant voltage or an alternating voltage V0 is applied to the touch sensing electrode Rx at the same time.
  • a capacitance is formed between the touch sensing electrode to which the voltage V0 is applied and the touch driving electrode to which the voltage VI is applied, thereby realizing a touch function.
  • the display time period of 11.7 ms and the touch time period of 5 ms are only for the purpose of illustrating an example of the embodiment of the present invention. In a specific implementation process, the display time period is not limited to 11.7 ms, and the touch time period is not limited to 5ms.
  • the in-cell touch panel provided by the embodiment of the present invention can be integrated into a TN mode liquid crystal display panel or an advanced super-dimensional field switching (ADS) mode liquid crystal display panel.
  • the ADS mode is a planar electric field wide viewing angle core technology. Its core technical characteristics are described as follows: The electric field generated by the edge of the slit electrode in the same plane and the electric field generated between the slit electrode layer and the plate electrode layer form a multi-dimensional electric field, so that the liquid crystal cell All of the aligned liquid crystal molecules between the inner slit electrodes and directly above the electrodes can be rotated, thereby improving the liquid crystal working efficiency and increasing the light transmission efficiency.
  • ADS mode switching technology can improve the picture quality of TFT-LCD products, with high resolution, high transmittance, low power consumption, wide viewing angle, high aperture ratio, low chromatic aberration, and no push mura. .
  • ADS technology has improved high-transmission I-ADS technology, high aperture ratio H-ADS and high-resolution S-ADS technology.
  • an embodiment of the present invention further provides a display device, which includes the above-mentioned embedded touch screen provided by the embodiment of the present invention, and the display device may be: a mobile phone, a tablet computer, or an electric Any product or component that has a display function, such as a video camera, monitor, laptop, digital photo frame, navigator, etc.
  • the display device reference may be made to the above embodiment of the in-cell touch panel, and the repeated description is omitted.
  • the touch-sensing structure layer for implementing the touch function is added between the upper substrate and the lower substrate, and the touch sensing structure layer includes: a first touch sensing electrode and a second touch sensing electrode which are mutually insulated and intersected, and an orthographic projection of the added touch sensing structure layer on the lower substrate is located in a region of the black matrix layer, thereby avoiding occupying the pixel unit The aperture ratio.

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Abstract

本发明公开了一种内嵌式触摸屏及显示装置，在上基板和下基板之间增加了用于实现触控功能的触摸感测结构层，该触摸感测结构层包括：同层设置、相互绝缘且交叉设置的第一触摸感测电极与第二触摸感测电极，增加的触摸感测结构层的图形在下基板上的正投影位于黑矩阵层的图形所在区域内，可以避免占用像素单元的开口率。

Description

一种内嵌式触 及显示装置 技术领域
本发明涉及显示技术领域， 尤其涉及一种内嵌式触摸屏及显示装置。 背景技术
内嵌式触摸屏 ( In cell Touch Panel ) 为触摸屏和显示屏集成为一体的触 摸显示屏。 即触摸驱动电极和触摸感应电极集成在显示屏中， 内嵌式触摸屏 可同时实现触控和图像显示的功能。 由于内嵌式触摸屏具有结构筒单、 轻、 薄， 成本低等的特点， 已经逐渐成为显示技术领域的主流。
在内嵌式触控技术中， 常见的触摸驱动电极和触摸感应电极为在阵列基 板与黑色矩阵对应的区域增加与栅极扫描线相平行的电极和与数据信号线相 平行的电极。 具体地， 参见图 1 , 为现有内嵌式触摸屏， 包括： 多条横向分 布的栅极扫描线 10、 多条纵向分布的数据信号线 20, 以及栅极扫描线 10和 数据信号线 20围设而成的子像素单元， 如图 1中的红色子像素单元（R )、 绿 色子像素单元（G )和蓝色子像素单元（B ); 多个子像素单元呈矩阵排列； 还包括位于相邻的两个子像素单元之间与栅极扫描线 10相平行的触摸驱动 电极 30, 以及位于相邻的两个子像素单元之间与数据信号线 20相平行的触 摸感应电极 40。
由于触摸驱动电极 30和触摸感应电极 40与栅极扫描线 10和数据信号线
20同一次工艺制作而成， 触摸驱动电极 30和触摸感应电极 40为不透明的电 极， 且位于相邻子像素单元之间的非显示区域。
图 1所示的内嵌式触摸屏， 由于栅极扫描线和触摸驱动电极需要保持一 定距离以保证相互绝缘， 数据信号线与触摸感应电极需要保持一定距离以保 证相互绝缘。 因此， 各子像素单元的开口率较低。 发明内容
本发明实施例提供了一种内嵌式触摸屏及显示装置， 用以提高内嵌式触 摸屏的开口率。
本发明实施例提供的一种内嵌式触摸屏， 包括相对而置的上基板和下基 板， 还包括： 设置于所述上基板和所述下基板之间的黑矩阵层和触摸感测结 构层； 其中，
所述触摸感测结构层的图形在所述下基板上的正投影位于所述黑矩阵层 的图形所在区域内；
所述触摸感测结构层包括： 同层设置、 相互绝缘且交叉设置的第一触摸 感测电极与第二触摸感测电极； 在触控时间段， 对所述第一触摸感测电极加 载触控扫描信号， 所述第二触摸感测电极耦合所述触控扫描信号并输出； 或 对所述第二触摸感测电极加载触控扫描信号， 所述第一触摸感测电极耦合所 述触控扫描信号并输出。
本发明实施例提供的上述内嵌式触摸屏， 在上基板和下基板之间增加了 用于实现触控功能的触摸感测结构层， 该触摸感测结构层包括： 同层设置、 相互绝缘且交叉设置的第一触摸感测电极与第二触摸感测电极， 增加的触摸 感测结构层的图形在下基板上的正投影位于黑矩阵层的图形所在区域内， 可 以避免占用像素单元的开口率。
可选择地， 在本发明实施例提供的上述触摸屏中， 所述黑矩阵层位于所 述上基板面向所述下基板的一侧， 在所述黑矩阵层上还设置有彩色树脂层； 所述触摸感测结构层位于所述上基板与所述黑矩阵层之间， 或位于所述 黑矩阵层与所述彩色树脂层之间， 或位于所述彩色树脂层之上。
可选择地， 在本发明实施例提供的上述触摸屏中， 所述第一触摸感测电 极由相互独立的多个第一触摸感测子电极组成， 所述第一触摸感测子电极与 所述第二触摸感测电极间隔排列； 属于同一第一触摸感测电极且位于所述第 二触摸感测电极两侧的第一触摸感测子电极通过桥接线电性相连； 或，
所述第二触摸感测电极由相互独立的多个第二触摸感测子电极组成， 所 述第二触摸感测子电极与所述第一触摸感测电极间隔排列； 属于同一第二触 摸感测电极且位于所述第一触摸感测电极两侧的各第二触摸感测子电极通过 桥接线电性相连。
具体地， 为了避免影响显示的开口率， 在本发明实施例提供的上述触摸 屏中， 所述桥接线在所述下基板上的正投影位于所述黑矩阵层的图形所在区 域内。
进一步地， 在本发明实施例提供的上述触摸屏中， 为了避免各第一触摸 感测电极之间产生信号干扰， 相邻的两个所述第一触摸感测电极之间设置有 第一浮空电极； 和 /或， 为了避免各第一触摸感测电极之间产生信号干扰， 相 邻的两个所述第二触摸感测电极之间设置有第二浮空电极。
具体地， 为了避免影响显示的开口率， 在本发明实施例提供的上述触摸 屏中， 所述第一浮空电极在所述下基板上的正投影位于所述黑矩阵层的图形 所在区域内； 所述第二浮空电极在所述下基板上的正投影位于所述黑矩阵层 的图形所在区域内。
具体地， 在本发明实施例提供的上述触摸屏中， 所述第一触摸感测电极 和第二触摸感测电极的材料为金属材料或透明导电氧化物材料。
本发明实施例还提供了一种显示装置， 包括本发明实施例提供的上述内 嵌式触摸屏。 附图说明
图 1为现有内嵌式触摸屏结构示意图；
图 2为本发明实施例提供的内嵌式触摸屏的侧视示意图；
图 3a和图 3b为本发明实施例提供的内嵌式触摸屏的俯视示意图； 以及 图 4为本发明实施例提供的内嵌式触摸屏实现触控功能的时序图。 具体实施方式
本发明实施例提供了一种内嵌式触摸屏及显示装置， 用以提高内嵌式触 摸屏的开口率。
首先筒单介绍下内嵌式触摸屏的工作原理。 指触碰触摸屏时， 手指改变了相邻电极之间的耦合电容， 通过检测触摸点耦 合电容的变化值确定触摸点位置。
本发明实施例提供的内嵌式触摸屏， 在上基板和下基板之间增加了用于 实现触控功能的触摸感测结构层， 该触摸感测结构层包括： 同层设置、 相互 绝缘且交叉设置的第一触摸感测电极与第二触摸感测电极， 增加的触摸感测 结构层的图形在下基板上的正投影位于黑矩阵层的图形所在区域内， 可以避 免占用像素单元的开口率， 且第一触摸感测电极和第二触摸感测电极设置在 同一层可以减小触摸屏的厚度。
本发明实施例提供的一种内嵌式触摸屏， 如图 2所示， 包括相对而置的 上基板 1和下基板 2, 还包括： 设置于上基板 1和下基板 2之间的黑矩阵层 3 和触摸感测结构层 4; 其中，
触摸感测结构层 4的图形在下基板 2上的正投影位于黑矩阵层 3的图形 所在区域内；
触摸感测结构层 4如图 3a和图 3b所示， 具体包括： 同层设置、 相互绝 缘且交叉设置的第一触摸感测电极 41与第二触摸感测电极 42; 在触控时间 段， 对第一触摸感测电极 41加载触控扫描信号， 第二触摸感测电极 42耦合 触控扫描信号并输出； 或对第二触摸感测电极 42加载触控扫描信号， 第一触 摸感测电极 41耦合触控扫描信号并输出。
在具体实施时，第一触摸感测电极 41可以是触摸感应电极（ Rx, receive ), 第二触摸感测电极 42对应地是触摸驱动电极（Tx, Transport ); 反之， 第一 触摸感测电极 41也可以是触摸驱动电极 Tx, 第二触摸感测电极 42对应地是 触摸感应电极 Rx, 在此不做限定。 并且， 第一触摸感测电极 41和第二触摸 感测电极 42由于被黑矩阵层 3的图形遮挡， 因此， 在具体实施时， 可以采用 诸如氧化铟锡（ITO ) 的透明导电氧化物材料制作， 也可以采用诸如 A1和 Mo的金属材料制作， 在此不作赘述。
具体地， 本发明实施例提供的上述触摸屏中， 如图 2所示， 可以应用于 彩色树脂层 5 (如图 2中 R、 G、 B树脂层）和黑矩阵层 3设置在与下基板 2 相对的上基板 1即彩膜基板的结构， 各彩色树脂层 5通过黑矩阵层 3的图形 相互隔开， 当然， 也可以应用于彩色树脂层和黑矩阵层设置在下基板中的结 构， 在此不做限定。 下面都是以上基板 1为彩膜基板的结构为例对本发明实 施例提供的上述触摸屏进行说明。
具体地， 在上基板 1面向下基板 2的一侧设置黑矩阵层 3 , 在黑矩阵 3 上设置彩色树脂层 5; 在具体实施时， 触摸感测结构层 4可以设置在上基板 1 面向下基板 2的一侧， 具体地， 触摸感测结构层 4可以位于上基板 1与黑矩 阵层 3之间， 也可以位于黑矩阵层 3与彩色树脂层 5之间， 还可以如图 2所 示位于彩色树脂层 5之上。 此外， 触摸感测结构层 4还可以设置在下基板 2 面向上基板 1的一侧， 在此不做限定。
具体地，为了保证在触摸感测结构层 4中第一触摸感测电极 41和第二触 摸感测电极 42交叉设置， 在具体实施时， 可以将第一触摸感测电极 41设置 为沿横向延伸， 第二触摸感测电极 42设置为沿纵向延伸， 反之亦可。 下面都 是以第一触摸感测电极 41为沿横向延伸， 第二触摸感测电极 42沿纵向延伸 为例进行说明的。
在具体实施时，为了保证在触摸感测结构层 4中第一触摸感测电极 41和 第二触摸感测电极 42同层设置且相互绝缘， 因此， 如图 3a所示， 第一触摸 感测电极 41可以由相互独立的多个第一触摸感测子电极 411组成，第一触摸 感测子电极 411与第二触摸感测电极 42间隔排列；属于同一第一触摸感测电 极 41且位于第二触摸感测电极 42两侧的第一触摸感测子电极 411通过桥接 线 412电性相连。 并且， 由于桥接线 412与第一触摸感测子电极 411位于不 同层，可以通过过孔 413连接，桥接线 412与第二触摸感测电极 42相互绝缘。
或者， 在另一实例中， 如图 3b所示， 第二触摸感测电极 42由相互独立 的多个第二触摸感测子电极 421组成， 第二触摸感测子电极 421与第一触摸 感测电极 41间隔排列； 属于同一第二触摸感测电极 42且位于第一触摸感测 电极 41两侧的各第二触摸感测子电极 421通过桥接线 422电性相连。 并且， 由于桥接线 422与第二触摸感测子电极 421位于不同层， 可以通过过孔 423 连接， 桥接线 422与第一触摸感测电极 41相互绝缘。
在上述两个实例中， 为了保证连接各第一触摸感测子电极 411的桥接线
412和连接各第二触摸感测子电极 421的桥接线 422不占用开口率， 一般将 桥接线 412和 422设置为与黑矩阵层的图形重合， 即桥接线 412和 422在下 基板 2上的正投影位于黑矩阵层 3的图形所在区域内。
需要说明的是， 本发明实施例提供的桥接线与第一触摸感测电极和第二 触摸感测电极位于不同层， 因此， 桥接线可以设置在相邻的两层具有绝缘作 用的膜层之间， 另外， 桥接线也可以和黑矩阵层同层设置， 在此不做限定。
进一步地， 在本发明实施例提供的上述触摸屏中， 为了防止各第一触摸 感测电极 41之间产生信号干扰， 如图 3a所示， 在相邻的两个第一触摸感测 电极 41之间还可以设置有第一浮空电极 6。 在触控时间段， 将第一浮空电极 6接地。
同理， 为了防止各第二触摸感测电极 42之间产生信号干扰， 如图 3b所 示， 在相邻的两个第二触摸感测电极 42之间还可以设置有第二浮空电极 7。 在触控时间段， 将第二浮空电极 7接地。
并且，为了保证增加的第一浮空电极 6和第二浮空电极 7不占用开口率， 优选地， 第一浮空电极 6和第二浮空电极 7设置为与黑矩阵层的图形重合， 即如图 3a所示，第一浮空电极 6在下基板 2上的正投影位于黑矩阵层 3的图 形所在区域内； 第二浮空电极 7在下基板 2上的正投影位于黑矩阵层 3的图 形所在区域内。
参见图 4, 为实现图像显示和触摸功能的时序图， 具体说明本发明实施 例提供的内嵌式触摸屏的工作原理。
图 4中， V-sync为时序信号。 包括 n条栅线， 分别为栅线 1 ( Gate 1 )、 栅线 2 ( Gate 2 ) ......栅线 m ( Gate m )、 栅线 m+1 ( Gate m+1 )、 栅线 m+2
( Gate m+2 ),栅线 m+3 ( Gate m+3 )、 栅线 n-1 ( Gate n-1 ), 栅线 n ( Gate n )。 还包括数据线 Date。 n条触摸驱动电极 (Tl、 T2, , Τη)的时序， 以及 η条 触摸感应电极（Rl、 R2, , Rn ) 的时序。
设显示一帧图像的时间为 16.7ms,如图 4所示，前 11.7ms为显示时间段， 后 5ms为触控时间段； 在具体实施过程中， 前 11.7ms内依次为栅线施加栅电 压， 同时依次为数据线施加数据信号， 实现图像显示。 后 5ms内为栅线、 数 据线施加低电平信号，使得与栅线相连的 TFT关断。依次为触摸驱动电极 Tx 施加一定触摸驱动电压 VI , 以及同时为触摸感应电极 Rx施加恒定电压或交 流电压 V0。 施加有电压 V0的触摸感应电极和施加有电压 VI的触摸驱动电 极之间形成电容， 实现触摸功能。
上述显示时间段的 11.7ms以及触控时间段的 5ms只是为了说明本发明实 施例所示的一个个例， 在具体实现过程中， 显示时间段的不限于为 11.7ms, 触摸时间段不限于为 5ms。
需要说明的是， 本发明实施例提供的内嵌式触摸屏， 可以集成在 TN模 式的液晶显示面板， 或高级超维场转换（ ADS, Advanced Super Dimension Switch )模式的液晶显示面板。 ADS模式是平面电场宽视角核心技术， 其核 心技术特性描述为： 通过同一平面内狭缝电极边缘所产生的电场以及狭缝电 极层与板状电极层间产生的电场形成多维电场， 使液晶盒内狭缝电极间、 电 极正上方所有取向液晶分子都能够产生旋转， 从而提高了液晶工作效率并增 大了透光效率。 ADS模式的开关技术可以提高 TFT-LCD产品的画面品质， 具有高分辨率、 高透过率、 低功耗、 宽视角、 高开口率、 低色差、 无挤压水 波纹（push Mura )等优点。 针对不同应用， ADS技术的改进技术有高透过率 I-ADS技术、 高开口率 H- ADS和高分辨率 S- ADS技术等。
基于同一发明构思， 本发明实施例还提供了一种显示装置， 包括本发明 实施例提供的上述内嵌式触摸屏， 该显示装置可以为： 手机、 平板电脑、 电 视机、 显示器、 笔记本电脑、 数码相框、 导航仪等任何具有显示功能的产品 或部件。 该显示装置的实施可以参见上述内嵌式触摸屏的实施例， 重复之处 不再赘述。
本发明实施例提供的上述内嵌式触摸屏及显示装置， 在上基板和下基板 之间增加了用于实现触控功能的触摸感测结构层， 该触摸感测结构层包括： 同层设置、 相互绝缘且交叉设置的第一触摸感测电极与第二触摸感测电极， 增加的触摸感测结构层的图形在下基板上的正投影位于黑矩阵层的图形所在 区域内， 可以避免占用像素单元的开口率。 发明的精神和范围。 这样， 倘若本发明的这些修改和变型属于本发明权利要 求及其等同技术的范围之内， 则本发明也意图包含这些改动和变型在内。

Claims

权 利 要 求 书
1、 一种内嵌式触摸屏， 包括相对而置的上基板和下基板， 还包括： 设置 于所述上基板和所述下基板之间的黑矩阵层和触摸感测结构层； 其中，
所述触摸感测结构层的图形在所述下基板上的正投影位于所述黑矩阵层 的图形所在区域内；
所述触摸感测结构层包括： 同层设置、 相互绝缘且交叉设置的第一触摸 感测电极与第二触摸感测电极； 在触控时间段， 对所述第一触摸感测电极加 载触控扫描信号， 所述第二触摸感测电极耦合所述触控扫描信号并输出； 或 对所述第二触摸感测电极加载触控扫描信号， 所述第一触摸感测电极耦合所 述触控扫描信号并输出。
2、 如权利要求 1所述的触摸屏， 其中， 所述黑矩阵层位于所述上基板面 向所述下基板的一侧， 在所述黑矩阵层上还设置有彩色树脂层；
所述触摸感测结构层位于所述上基板与所述黑矩阵层之间， 或位于所述 黑矩阵层与所述彩色树脂层之间， 或位于所述彩色树脂层之上。
3、如权利要求 1所述的触摸屏， 其中， 所述第一触摸感测电极由相互独 立的多个第一触摸感测子电极组成， 所述第一触摸感测子电极与所述第二触 摸感测电极间隔排列； 属于同一第一触摸感测电极且位于所述第二触摸感测 电极两侧的第一触摸感测子电极通过桥接线电性相连； 或，
所述第二触摸感测电极由相互独立的多个第二触摸感测子电极组成， 所 述第二触摸感测子电极与所述第一触摸感测电极间隔排列； 属于同一第二触 摸感测电极且位于所述第一触摸感测电极两侧的各第二触摸感测子电极通过 桥接线电性相连。
4、如权利要求 3所述的触摸屏， 其中， 所述桥接线在所述下基板上的正 投影位于所述黑矩阵层的图形所在区域内。
5、如权利要求 1所述的触摸屏， 其中， 相邻的两个所述第一触摸感测电 极之间设置有第一浮空电极； 和 /或，
相邻的两个所述第二触摸感测电极之间设置有第二浮空电极。
6、 如权利要求 1-5任一项所述的触摸屏， 其中， 所述第一浮空电极在所 述下基板上的正投影位于所述黑矩阵层的图形所在区域内；
所述第二浮空电极在所述下基板上的正投影位于所述黑矩阵层的图形所 在区 i或内。
7、 如权利要求 1-5任一项所述的触摸屏， 其中， 所述第一触摸感测电极 和第二触摸感测电极的材料为金属材料或透明导电氧化物材料。
8、 一种显示装置， 包括如权利要求 1-7任一项所述的内嵌式触摸屏。
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