WO2017107291A1 - 窄边框In Cell型触控显示面板结构 - Google Patents

窄边框In Cell型触控显示面板结构 Download PDF

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Publication number
WO2017107291A1
WO2017107291A1 PCT/CN2016/072844 CN2016072844W WO2017107291A1 WO 2017107291 A1 WO2017107291 A1 WO 2017107291A1 CN 2016072844 W CN2016072844 W CN 2016072844W WO 2017107291 A1 WO2017107291 A1 WO 2017107291A1
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Prior art keywords
touch
touch driving
signal
display panel
control signal
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PCT/CN2016/072844
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English (en)
French (fr)
Inventor
陈彩琴
张启沛
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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Priority to US14/914,652 priority Critical patent/US20180039118A1/en
Publication of WO2017107291A1 publication Critical patent/WO2017107291A1/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
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • 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
    • G02F1/134336—Matrix
    • 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • G—PHYSICS
    • G06—COMPUTING 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
    • G06F3/0416—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 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
    • 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
    • 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
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13454—Drivers integrated on the active matrix substrate

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a narrow frame In Cell type touch display panel structure.
  • Liquid Crystal Display has many advantages such as thin body, power saving, no radiation, etc., and has been widely used, such as mobile phones, personal digital assistants (PDAs), digital cameras, computer screens or laptop screens. Wait.
  • PDAs personal digital assistants
  • LCD Liquid Crystal Display
  • the In-Cell type touch display panel refers to a method of embedding a touch function into a liquid crystal pixel, which not only further reduces the thickness of the whole machine, but also can be produced together with the LCD, without additional manufacturing processes, and does not affect the outdoor. Visibility in bright environments.
  • “Narrow border” means that there is no obvious frame gland on the edge of the display panel.
  • the appearance of the display panel looks simple and bright, and the atmosphere is fashionable. It is the development trend of liquid crystal displays.
  • a conventional In Cell type touch display panel structure includes a plurality of touch driving electrodes 10 and a plurality of strips arranged in parallel in a horizontal direction disposed in an intermediate portion of the touch display panel.
  • the touch sensing electrodes 20 are disposed in parallel with the plurality of touch driving electrodes 10 and are electrically connected to the touch driving electrodes 10 on both sides of the touch display panel.
  • the control driving circuit 30, the GOA circuit 90 disposed outside the touch driving circuit 30, the touch sensing circuit 40 disposed in the lower end region of the touch display panel and electrically connected to all the touch sensing electrodes 20, and the electrical
  • the IC driver module 50 of the touch driving circuit 30 and the touch sensing circuit 40 is connected.
  • the touch driving circuit 30 includes the same number of touch driving signal traces 301 as the plurality of touch driving electrodes 10, and each of the touch driving signal traces 301 is electrically connected to each other through a pad 302. Corresponding one touch drive electrode 10, for example, if the number of touch driving electrodes is 30, an equal number of 30 touch driving signal traces 301 need to be set.
  • the touch driving signal generated by the IC driving module 50 is transmitted to the touch driving electrode 10 via the touch driving signal trace 301 in the touch driving circuit 30, and the sensing signal sensed by the touch sensing electrode 20 is detected. It is transmitted back to the IC driving module 50 via the touch sensing circuit 40.
  • the number of touch driving signal traces 301 is related to the size of the display panel and the size of the pad 302. The larger the display panel is, the smaller the pad 302 is, the more touch driving signal traces 301 are needed. Therefore, the conventional In Cell type touch display panel structure has the disadvantage that the touch driving electrode 10 is used when applied to a touch display panel with high touch precision (ie, a small pad) and a large size. The number of corresponding touch drive signal traces 301 is also large, which will occupy a wider panel border area, which is not conducive to the design of narrow borders.
  • An object of the present invention is to provide an In Cell type touch display panel structure, which can reduce the number of signal traces in the frame area on both sides of the panel and reduce the width of the frame area, thereby facilitating the design of the narrow frame.
  • the present invention provides a narrow-frame In Cell-type touch display panel structure, which includes a plurality of touch drive electrodes disposed in parallel in a horizontal direction in a middle portion of the touch display panel, and a plurality of vertical drive electrodes. a touch sensing electrode disposed in parallel with the plurality of touch driving electrodes, and a touch driving circuit disposed on both sides of the touch display panel and electrically connected to all the touch driving electrodes a touch sensing circuit disposed in a lower end region of the display panel and electrically connected to all the touch sensing electrodes, and an IC driving module electrically connected to the touch driving circuit and the touch sensing circuit;
  • the number of the plurality of touch driving electrodes is N, m is an integer greater than 1 and can be divided by N.
  • the touch driving circuit includes m control signal lines and N/m touch driving signal lines. And m TFTs respectively corresponding to each touch drive signal trace;
  • the gates of the m TFTs corresponding to the ith touch drive signal traces are electrically connected to the first to mth control signal traces, respectively, and the source is electrically connected.
  • the drain is electrically connected to a corresponding one of the touch driving electrodes through a pad.
  • the control signal routing transmission control signal controls the m TFTs corresponding to the ith touch driving signal routing settings to be sequentially turned on; the touch driving signal routing transmits the touch driving signal corresponding to the ith touch driving When the m TFTs set by the signal lines are sequentially turned on, the touch driving signals are transmitted to the touch driving electrodes through the TFTs.
  • the control signal and the touch drive signal are both generated by the IC drive module.
  • the control signal and the touch driving signal are both periodic pulse signals, and the pulse high-potential duration of the touch driving signal is m times of the high-potential duration of the control signal pulse.
  • the falling edge of the previous touch driving signal is generated simultaneously with the rising edge of the next touch driving signal; for the adjacent two control signals, the falling edge of the previous control signal is The rising edge of the next control signal is generated simultaneously.
  • the touch sensing circuit senses a touch sensing signal.
  • the touch sensing signal is transmitted back to the IC driving module via the touch sensing circuit.
  • the narrow frame In Cell type touch display panel structure further includes a GOA circuit disposed outside the touch driving circuit.
  • the invention also provides a structure of a narrow-frame In Cell-type touch display panel, which comprises a plurality of touch-driving driving electrodes arranged in parallel in a horizontal direction and arranged in parallel in the vertical direction. And a touch sensing electrode insulated from the plurality of touch driving electrodes, a touch driving circuit disposed on two sides of the touch display panel and electrically connected to all the touch driving electrodes, and a lower end of the touch display panel a touch sensing circuit electrically connected to all of the touch sensing electrodes, and an IC driving module electrically connected to the touch driving circuit and the touch sensing circuit;
  • the number of the plurality of touch driving electrodes is N, m is an integer greater than 1 and can be divided by N.
  • the touch driving circuit includes m control signal lines and N/m touch driving signal lines. And m TFTs respectively corresponding to each touch drive signal trace;
  • the gates of the m TFTs corresponding to the ith touch drive signal traces are electrically connected to the first to mth control signal traces, respectively, and the source is electrically connected.
  • the ith touch drive signal is routed, and the drain is electrically connected to the corresponding one of the touch drive electrodes through a pad;
  • the control signal routing transmission control signal controls the m TFTs corresponding to the ith touch driving signal routing settings to be sequentially turned on; the touch driving signal routing transmits the touch driving signal, corresponding to the ith touch When the m TFTs of the control driving signal line are sequentially turned on, the touch driving signal is transmitted to the touch driving electrode through the TFT;
  • the touch sensing circuit senses the touch sensing signal
  • a GOA circuit disposed outside the touch driving circuit is also included.
  • the invention provides a narrow-frame In Cell type touch display panel structure, which is provided with m control signal lines, N/m touch driving signal lines, and corresponding touch driving lines.
  • the signal lines are respectively provided with m TFTs, that is, the touch driving signals can be provided for the N touch driving electrodes, compared with the N number of N touch driving electrodes in the prior art.
  • the strip touch driving signal routing can reduce the number of signal traces in the border area of the two sides of the panel, and reduce the width of the border area, thereby facilitating the design of the narrow border.
  • FIG. 1 is a schematic diagram of a structure of a conventional In Cell type touch display panel
  • Figure 2 is a detailed view of the portion A in Figure 1;
  • FIG. 3 is a schematic view showing the structure of a narrow bezel In Cell type touch display panel of the present invention.
  • Figure 4 is a detailed view of the portion B in Figure 3;
  • FIG. 5 is a signal timing diagram of a structure of a narrow bezel In Cell type touch display panel according to the present invention.
  • the present invention provides a structure of a narrow-frame In Cell-type touch display panel, which includes a plurality of touch driving electrodes 1 disposed in parallel in a horizontal direction in an intermediate portion of the touch display panel.
  • a plurality of touch sensing electrodes 2 disposed in parallel with the plurality of touch driving electrodes 1 and spaced apart from each other in the vertical direction are disposed on both sides of the touch display panel and electrically connected to all of the touch driving electrodes 1
  • the touch driving circuit 3 is disposed on the lower end of the touch display panel and electrically connected to all the touch sensing electrodes 2, and electrically connected to the touch driving circuit 3 and the touch sensing circuit 4
  • the IC driving module 5 and the GOA circuit 9 disposed outside the touch driving circuit 3.
  • the number of the plurality of touch driving electrodes 1 is N, m is an integer greater than 1 and can be divided by N.
  • the touch driving circuit 3 includes m control signal traces CL(1). Up to CL(m), N/m touch drive signal traces TL(1) to TL(N/m), and m TFTs T1 to Tm respectively set for each touch drive signal trace.
  • the touch driving circuit 3 includes three control signal traces CL(1), CL(2), CL(3), 10 touch drive signal traces TL(1) to TL(10)), and 3 TFTs T1 to T3 respectively corresponding to each touch drive signal trace, so that the total signal trace
  • the number of the technology is 13 and the prior art requires 30 touch drive signal traces. In contrast, the number of signal lines is greatly reduced.
  • N is 30 and m is 5, the number of the plurality of touch driving electrodes 1 is 30, and the touch driving circuit 3 includes 5 control signal traces CL(1) to CL(5), 6
  • the touch drive signal traces TL(1) to TL(6)) and the five TFTs T1 to T5 respectively set for each touch drive signal trace, so that the total number of signal traces is 11 It is smaller than the number of signal lines in the prior art.
  • This setting can reduce the number of signal traces in the border area on both sides of the panel, reduce the width of the border area, and facilitate the design of the narrow border.
  • the gates of the m TFTs corresponding to the ith touch driving signal trace TL (i) are electrically connected to the first to mth control signal traces CL (1, respectively)
  • the source is electrically connected to the ith touch driving signal trace TL(i)
  • the drain is electrically connected to the corresponding one of the touch driving electrodes 1 through a pad 32.
  • control signal lines CL(1) to CL(m) transmit control signals to control m TFTs corresponding to the ith touch driving signal trace TL(i).
  • the touch driving signal lines TL(1) to TL(N/m) transmit the touch driving signals, and the m TFTs corresponding to the ith touch driving signal trace TL(i) are sequentially turned on.
  • the touch driving signal is transmitted to the touch driving electrode 1 through the TFT.
  • control signal and the touch driving signal are both generated by the IC driving module 5.
  • the control signal and the touch driving signal are both periodic pulse signals, and the pulse high-potential duration of the touch driving signal is m times of the high-potential duration of the control signal pulse.
  • the falling edge of the previous touch driving signal is generated simultaneously with the rising edge of the next touch driving signal; for the adjacent two control signals, the falling edge of the previous control signal is The rising edge of the next control signal is generated simultaneously.
  • the touch sensing circuit 4 senses the touch sensing signal, and the touch sensing signal is transmitted back to the IC driving module 5 via the touch sensing circuit 4 .
  • the gates of the three TFTs corresponding to the first touch driving signal trace TL(1) are electrically connected to the first to third control signal traces, respectively.
  • CL (1) to CL (3) the source is electrically connected to the first touch driving signal trace TL (1), and the drain is electrically connected to the corresponding one of the touch driving electrodes through a pad 32 1.
  • the pulse high-potential duration of the touch driving signal is three times longer than the high-potential duration of the control signal pulse.
  • the The control signal lines CL(1) to CL(3) sequentially transmit the high potential of the control signal, and sequentially control the TFT T1, TFT T2, and TFT T3 corresponding to the first touch driving signal trace TL(1) to be sequentially turned on.
  • the touch driving signals are transmitted to the first to third touch driving electrodes 1; similarly, the gates of the three TFTs corresponding to the second touch driving signal trace TL(2) are electrically connected to The first to third control signal traces CL(1) to CL(3), the source is electrically connected to the second touch drive signal trace TL(2), and the drain passes through A pad 32 is electrically connected to a corresponding touch driving electrode 1 , and when the touch driving signal transmitted in the second touch driving signal trace TL ( 2 ) is at a high potential, the control signal trace CL (1)
  • the CL (3) sequentially transmits the high potential of the control signal, and sequentially controls the TFT T1, TFT T2, and TFT T3 corresponding to the second touch driving signal trace TL(2) to be sequentially turned on to the fourth strip.
  • the touch control driving signal is transmitted to the sixth touch driving electrode 1; the gates of the three TFTs corresponding to the tenth touch driving signal trace TL (10) are electrically connected to the first to third strips, respectively.
  • the touch driving electrode 1 is at a high potential of the touch driving signal transmitted in the tenth touch driving signal trace TL (10)
  • the control signal traces CL(1) to CL(3) are sequentially transmitted and controlled.
  • the high potential of the signal controls the TFT T1, TFT T2, and TFT T3 corresponding to the 10th touch drive signal trace TL(10) to be sequentially turned on to the 28th to 30th touch drivers. 1 to transmit the touch signal driving electrode, in order to achieve with a small number of signal traces 13 to transmit the touch drive electrode a drive signal to all 30 touch.
  • the present invention does not specifically limit the number N of the touch driving electrodes 1, the number m of control signal traces, and the number N/m of touch driving signal traces, as long as m is greater than 1 and can be divided by N.
  • N the number of the touch driving electrodes 1
  • the number of signal traces in the frame area on both sides of the panel is reduced, and the effect of reducing the width of the frame area is more obvious, such as N is 3000.
  • the value is 30, the number of the touch driving electrodes 1 is 3000, the number of control signal lines is 30, and the number of touch driving signal lines is 100. Compared with the prior art, it is required to set 3000 touch driving signal lines.
  • the invention only needs to set a total of 130 signal traces.
  • the narrow-frame In Cell type touch display panel structure of the present invention is provided by setting m control signal lines, N/m touch driving signal lines, and corresponding to each touch driving signal line respectively.
  • the m TFTs are provided, that is, the touch driving signals can be provided for the N touch driving electrodes, and the panel can be reduced compared with the N touch driving signal lines of the N touch driving electrodes.
  • the number of signal traces in the border area on both sides reduces the width of the border area, which facilitates the design of a narrow border.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Human Computer Interaction (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Geometry (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Liquid Crystal (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

一种窄边框In Cell型触控显示面板结构，通过设置m条控制信号走线(TL(1)至TL(N/m))、N/m条触控驱动信号走线(CL(1)至CL(m))、及对应每条触控驱动信号走线分别设置m个TFT(T1至Tm)，即能够为N条触控驱动电极(1)提供触控驱动信号，相比于现有技术中设置与N条触控驱动电极同等数量的N条触控驱动信号走线，能够减少面板两侧边框区域的信号走线的数量，减小边框区域的宽度，利于实现窄边框设计。

Description

窄边框In Cell型触控显示面板结构 技术领域
本发明涉及显示技术领域，尤其涉及一种窄边框In Cell型触控显示面板结构。
背景技术
液晶显示器(Liquid Crystal Display，LCD)具有机身薄、省电、无辐射等众多优点，得到了广泛的应用，如：移动电话、个人数字助理(PDA)、数字相机、计算机屏幕或笔记本电脑屏幕等。
随着液晶显示器技术的发展进步，人们对液晶显示器的显示品质、外观设计、人机界面等提出了更高的要求，触控技术(Touch Technology)因具有操作方便，高度集成等特点成为技术发展的热点。
触控技术近些年发展迅猛，目前已有多种触控技术投入量产。对于现有的触控显示面板，根据触控传感器(Touch Sensor)设置位置的不同，可分为触控传感器覆盖于液晶盒上式(On Cell)、触控传感器内嵌在液晶盒内式(In Cell)、以及触控传感器外挂于显示面板式(Out Cell)。其中In-Cell型触控显示面板是指将触控功能嵌入到液晶像素中的方法，不仅进一步降低了整机厚度，而且可以和LCD一同制作，没有额外的制作工序，也不影响其在室外等明亮的环境下的可视性。
为了使用的方便以及美观的需要，现在的数码显示产品对窄边框的需求越来越迫切。“窄边框”是指显示面板四周边缘上无明显框架压盖，显示面板外观看起来简单明快、时尚大气，是液晶显示器发展的趋势。
请同时参阅图1与图2，一种现有的In Cell型触控显示面板结构，包括于触控显示面板中间区域设置的多条沿水平方向平行间隔设置的触控驱动电极10、多条沿竖直方向平行间隔设置且与所述多条触控驱动电极10绝缘交叉的触控感应电极20、于触控显示面板两侧区域设置的且与全部触控驱动电极10电性连接的触控驱动电路30、于所述触控驱动电路30外侧设置的GOA电路90、于触控显示面板下端区域设置的且与全部触控感应电极20电性连接的触控感应电路40、及电性连接所述触控驱动电路30与触控感应电路40的IC驱动模块50。其中，所述触控驱动电路30包括与所述多条触控驱动电极10同等数量的触控驱动信号走线301，每条触控驱动信号走线301各通过一焊盘302电性连接至对应的一条触控驱动电极10，例 如，若触控驱动电极的数量为30条，则需要设置同等数量的30条触控驱动信号走线301。进行触控操作时，IC驱动模块50产生的触控驱动信号经由触控驱动电路30内的触控驱动信号走线301传输至触控驱动电极10，触控感应电极20感测到的感应信号经由触控感应电路40传回至IC驱动模块50。
触控驱动信号走线301的数量和显示面板的大小及焊盘302的大小有关，显示面板越大，焊盘302越小，则需要的触控驱动信号走线301越多。因此，该现有的In Cell型触控显示面板结构的缺点在于：在应用于触控精准度较高(即焊盘较小)和尺寸较大的触控显示面板时，触控驱动电极10的数量较多，相应的触控驱动信号走线301的数量也会较多，从而会占用较宽的面板边框区域，不利于窄边框的设计。
发明内容
本发明的目的在于提供一种In Cell型触控显示面板结构，能够减少面板两侧边框区域的信号走线的数量，减小边框区域的宽度，利于实现窄边框设计。
为实现上述目的，本发明提供一种窄边框In Cell型触控显示面板结构，包括于触控显示面板中间区域设置的多条沿水平方向平行间隔设置的触控驱动电极、多条沿竖直方向平行间隔设置且与所述多条触控驱动电极绝缘交叉的触控感应电极、于触控显示面板两侧区域设置的且与全部触控驱动电极电性连接的触控驱动电路、于触控显示面板下端区域设置的且与全部触控感应电极电性连接的触控感应电路、及电性连接所述触控驱动电路与触控感应电路的IC驱动模块；
设所述多条触控驱动电极的数量为N，m为大于1且能够整除N的整数，所述触控驱动电路包括m条控制信号走线、N/m条触控驱动信号走线，及对应每条触控驱动信号走线分别设置的m个TFT；
设1≤i≤N/m，对应第i条触控驱动信号走线设置的m个TFT的栅极分别电性连接于第1条至第m条控制信号走线，源极均电性连接于第i条触控驱动信号走线，漏极分别通过一焊盘电性连接至对应的一条触控驱动电极。
所述控制信号走线传输控制信号，控制对应第i条触控驱动信号走线设置的m个TFT依次打开；所述触控驱动信号走线传输触控驱动信号，对应第i条触控驱动信号走线设置的m个TFT依次打开时，触控驱动信号通过TFT传输给触控驱动电极。
所述控制信号与触控驱动信号均由IC驱动模块产生。
所述控制信号与触控驱动信号均为周期性脉冲信号，触控驱动信号的脉冲高电位时长是控制信号脉冲高电位时长的m倍。
对于相邻的两条触控驱动信号，上一条触控驱动信号的下降沿与下一条触控驱动信号的上升沿同时产生；对于相邻的两条控制信号，上一条控制信号的下降沿与下一条控制信号的上升沿同时产生。
所述触控感应电路感测触控感应信号。
触控感应信号经由触控感应电路传回至IC驱动模块。
所述窄边框In Cell型触控显示面板结构还包括于所述触控驱动电路外侧设置的GOA电路。
本发明还提供一种窄边框In Cell型触控显示面板结构，包括于触控显示面板中间区域设置的多条沿水平方向平行间隔设置的触控驱动电极、多条沿竖直方向平行间隔设置且与所述多条触控驱动电极绝缘交叉的触控感应电极、于触控显示面板两侧区域设置的且与全部触控驱动电极电性连接的触控驱动电路、于触控显示面板下端区域设置的且与全部触控感应电极电性连接的触控感应电路、及电性连接所述触控驱动电路与触控感应电路的IC驱动模块；
设所述多条触控驱动电极的数量为N，m为大于1且能够整除N的整数，所述触控驱动电路包括m条控制信号走线、N/m条触控驱动信号走线，及对应每条触控驱动信号走线分别设置的m个TFT；
设1≤i≤N/m，对应第i条触控驱动信号走线设置的m个TFT的栅极分别电性连接于第1条至第m条控制信号走线，源极均电性连接于第i条触控驱动信号走线，漏极分别通过一焊盘电性连接至对应的一条触控驱动电极；
其中，所述控制信号走线传输控制信号，控制对应第i条触控驱动信号走线设置的m个TFT依次打开；所述触控驱动信号走线传输触控驱动信号，对应第i条触控驱动信号走线设置的m个TFT依次打开时，触控驱动信号通过TFT传输给触控驱动电极；
其中，所述触控感应电路感测触控感应信号；
还包括于所述触控驱动电路外侧设置的GOA电路。
本发明的有益效果：本发明提供的一种窄边框In Cell型触控显示面板结构，通过设置m条控制信号走线、N/m条触控驱动信号走线、及对应每条触控驱动信号走线分别设置m个TFT，即能够为N条触控驱动电极提供触控驱动信号，相比于现有技术中设置与N条触控驱动电极同等数量的N 条触控驱动信号走线，能够减少面板两侧边框区域的信号走线的数量，减小边框区域的宽度，利于实现窄边框设计。
附图说明
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图中，
图1为一种现有的In Cell型触控显示面板结构的示意图；
图2为图1中A处的细节示意图；
图3本发明的窄边框In Cell型触控显示面板结构的示意图；
图4为图3中B处的细节示意图；
图5为本发明的窄边框In Cell型触控显示面板结构的信号时序图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请同时参阅图3至图5，本发明提供一种窄边框In Cell型触控显示面板结构，包括于触控显示面板中间区域设置的多条沿水平方向平行间隔设置的触控驱动电极1、多条沿竖直方向平行间隔设置且与所述多条触控驱动电极1绝缘交叉的触控感应电极2、于触控显示面板两侧区域设置的且与全部触控驱动电极1电性连接的触控驱动电路3、于触控显示面板下端区域设置的且与全部触控感应电极2电性连接的触控感应电路4、电性连接所述触控驱动电路3与触控感应电路4的IC驱动模块5、以及于所述触控驱动电路3外侧设置的GOA电路9。
设所述多条触控驱动电极1的数量为N，m为大于1且能够整除N的整数，如图4所示，所述触控驱动电路3包括m条控制信号走线CL(1)至CL(m)、N/m条触控驱动信号走线TL(1)至TL(N/m)，及对应每条触控驱动信号走线分别设置的m个TFT T1至Tm。
例如：若N为30、m为3，则所述多条触控驱动电极1的数量为30，所述触控驱动电路3包括3条控制信号走线CL(1)、CL(2)、CL(3)，10条触控驱动信号走线TL(1)至TL(10))，及对应每条触控驱动信号走线分别设置的3个TFT T1至T3，这样总的信号走线的数量为13条，而现有技术需要设置30条触控驱动信号走线，相比之下，信号线的数量大幅减少。再例如： 若N为30、m为5，则所述多条触控驱动电极1的数量为30，所述触控驱动电路3包括5条控制信号走线CL(1)至CL(5)，6条触控驱动信号走线TL(1)至TL(6))，及对应每条触控驱动信号走线分别设置的5个TFT T1至T5，这样总的信号走线的数量为11条，远小于现有技术中信号线的数量。这样设置可以减少面板两侧边框区域的信号走线的数量，减小边框区域的宽度，利于实现窄边框设计。
设1≤i≤N/m，对应第i条触控驱动信号走线TL(i)设置的m个TFT的栅极分别电性连接于第1条至第m条控制信号走线CL(1)至CL(m)，源极均电性连接于第i条触控驱动信号走线TL(i)，漏极分别通过一焊盘32电性连接至对应的一条触控驱动电极1。
结合图3、图4、与图5，所述控制信号走线CL(1)至CL(m)传输控制信号，控制对应第i条触控驱动信号走线TL(i)设置的m个TFT依次打开；所述触控驱动信号走线TL(1)至TL(N/m)传输触控驱动信号，对应第i条触控驱动信号走线TL(i)设置的m个TFT依次打开时，触控驱动信号通过TFT传输给触控驱动电极1。
具体地，所述控制信号与触控驱动信号均由IC驱动模块5产生。
所述控制信号与触控驱动信号均为周期性脉冲信号，触控驱动信号的脉冲高电位时长是控制信号脉冲高电位时长的m倍。
对于相邻的两条触控驱动信号，上一条触控驱动信号的下降沿与下一条触控驱动信号的上升沿同时产生；对于相邻的两条控制信号，上一条控制信号的下降沿与下一条控制信号的上升沿同时产生。
所述触控感应电路4感测触控感应信号，触控感应信号经由触控感应电路4传回至IC驱动模块5。
仍以N为30、m为3为例，对应第1条触控驱动信号走线TL(1)设置的3个TFT的栅极分别电性连接于第1条至第3条控制信号走线CL(1)至CL(3)，源极均电性连接于第1条触控驱动信号走线TL(1)，漏极分别通过一焊盘32电性连接至对应的一条触控驱动电极1，触控驱动信号的脉冲高电位时长是控制信号脉冲高电位时长的3倍，当第1条触控驱动信号走线TL(1)内传输的触控驱动信号的高电位时，所述控制信号走线CL(1)至CL(3)依次传输控制信号的高电位，先后控制对应第1条触控驱动信号走线TL(1)设置的TFT T1、TFT T2、TFT T3依次打开，以向第1条至第3条触控驱动电极1传输触控驱动信号；同理，对应第2条触控驱动信号走线TL(2)设置的3个TFT的栅极分别电性连接于第1条至第3条控制信号走线CL(1)至CL(3)，源极均电性连接于第2条触控驱动信号走线TL(2)，漏极分别通过 一焊盘32电性连接至对应的一条触控驱动电极1，当第2条触控驱动信号走线TL(2)内传输的触控驱动信号的高电位时，所述控制信号走线CL(1)至CL(3)依次传输控制信号的高电位，先后控制对应第2条触控驱动信号走线TL(2)设置的TFT T1、TFT T2、TFT T3依次打开，以向第4条至第6条触控驱动电极1传输触控驱动信号；直至对应第10条触控驱动信号走线TL(10)设置的3个TFT的栅极分别电性连接于第1条至第3条控制信号走线CL(1)至CL(3)，源极均电性连接于第10条触控驱动信号走线TL(10)，漏极分别通过一焊盘32电性连接至对应的一条触控驱动电极1，当第10条触控驱动信号走线TL(10)内传输的触控驱动信号的高电位时，所述控制信号走线CL(1)至CL(3)依次传输控制信号的高电位，先后控制对应第10条触控驱动信号走线TL(10)设置的TFT T1、TFT T2、TFT T3依次打开，以向第28条至第30条触控驱动电极1传输触控驱动信号，从而实现以较少数量的13条信号走线向全部30条触控驱动电极1传输触控驱动信号。
当然，本发明对触控驱动电极1的数量N，控制信号走线的数量m、及触控驱动信号走线的数量N/m并不做具体限定，只要保证m为大于1且能够整除N的整数，那么在触控驱动电极1的数量N越多的情况下，本发明减少面板两侧边框区域的信号走线的数量，减小边框区域的宽度的效果越明显，如N为3000、m为30，则触控驱动电极1的数量为3000，控制信号走线的数量30、触控驱动信号走线的数量100，相比于现有技术需要设置3000条触控驱动信号走线，本发明只需要设置总共130条信号走线。
综上所述，本发明的窄边框In Cell型触控显示面板结构，通过设置m条控制信号走线、N/m条触控驱动信号走线、及对应每条触控驱动信号走线分别设置m个TFT，即能够为N条触控驱动电极提供触控驱动信号，相比于现有技术中设置与N条触控驱动电极同等数量的N条触控驱动信号走线，能够减少面板两侧边框区域的信号走线的数量，减小边框区域的宽度，利于实现窄边框设计。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明后附的权利要求的保护范围。

Claims (13)

  1. 一种窄边框In Cell型触控显示面板结构，包括于触控显示面板中间区域设置的多条沿水平方向平行间隔设置的触控驱动电极、多条沿竖直方向平行间隔设置且与所述多条触控驱动电极绝缘交叉的触控感应电极、于触控显示面板两侧区域设置的且与全部触控驱动电极电性连接的触控驱动电路、于触控显示面板下端区域设置的且与全部触控感应电极电性连接的触控感应电路、及电性连接所述触控驱动电路与触控感应电路的IC驱动模块；
    设所述多条触控驱动电极的数量为N，m为大于1且能够整除N的整数，所述触控驱动电路包括m条控制信号走线、N/m条触控驱动信号走线，及对应每条触控驱动信号走线分别设置的m个TFT；
    设1≤i≤N/m，对应第i条触控驱动信号走线设置的m个TFT的栅极分别电性连接于第1条至第m条控制信号走线，源极均电性连接于第i条触控驱动信号走线，漏极分别通过一焊盘电性连接至对应的一条触控驱动电极。
  2. 如权利要求1所述的窄边框In Cell型触控显示面板结构，其中，所述控制信号走线传输控制信号，控制对应第i条触控驱动信号走线设置的m个TFT依次打开；所述触控驱动信号走线传输触控驱动信号，对应第i条触控驱动信号走线设置的m个TFT依次打开时，触控驱动信号通过TFT传输给触控驱动电极。
  3. 如权利要求2所述的窄边框In Cell型触控显示面板结构，其中，所述控制信号与触控驱动信号均由IC驱动模块产生。
  4. 如权利要求2所述的窄边框In Cell型触控显示面板结构，其中，所述控制信号与触控驱动信号均为周期性脉冲信号，触控驱动信号的脉冲高电位时长是控制信号脉冲高电位时长的m倍。
  5. 如权利要求4所述的窄边框In Cell型触控显示面板结构，其中，对于相邻的两条触控驱动信号，上一条触控驱动信号的下降沿与下一条触控驱动信号的上升沿同时产生；对于相邻的两条控制信号，上一条控制信号的下降沿与下一条控制信号的上升沿同时产生。
  6. 如权利要求1所述的窄边框In Cell型触控显示面板结构，其中，所述触控感应电路感测触控感应信号。
  7. 如权利要求6所述的窄边框In Cell型触控显示面板结构，其中，触 控感应信号经由触控感应电路传回至IC驱动模块。
  8. 如权利要求1所述的窄边框In Cell型触控显示面板结构，还包括于所述触控驱动电路外侧设置的GOA电路。
  9. 一种窄边框In Cell型触控显示面板结构，包括于触控显示面板中间区域设置的多条沿水平方向平行间隔设置的触控驱动电极、多条沿竖直方向平行间隔设置且与所述多条触控驱动电极绝缘交叉的触控感应电极、于触控显示面板两侧区域设置的且与全部触控驱动电极电性连接的触控驱动电路、于触控显示面板下端区域设置的且与全部触控感应电极电性连接的触控感应电路、及电性连接所述触控驱动电路与触控感应电路的IC驱动模块；
    设所述多条触控驱动电极的数量为N，m为大于1且能够整除N的整数，所述触控驱动电路包括m条控制信号走线、N/m条触控驱动信号走线，及对应每条触控驱动信号走线分别设置的m个TFT；
    设1≤i≤N/m，对应第i条触控驱动信号走线设置的m个TFT的栅极分别电性连接于第1条至第m条控制信号走线，源极均电性连接于第i条触控驱动信号走线，漏极分别通过一焊盘电性连接至对应的一条触控驱动电极；
    其中，所述控制信号走线传输控制信号，控制对应第i条触控驱动信号走线设置的m个TFT依次打开；所述触控驱动信号走线传输触控驱动信号，对应第i条触控驱动信号走线设置的m个TFT依次打开时，触控驱动信号通过TFT传输给触控驱动电极；
    其中，所述触控感应电路感测触控感应信号；
    还包括于所述触控驱动电路外侧设置的GOA电路。
  10. 如权利要求9所述的窄边框In Cell型触控显示面板结构，其中，所述控制信号与触控驱动信号均由IC驱动模块产生。
  11. 如权利要求9所述的窄边框In Cell型触控显示面板结构，其中，所述控制信号与触控驱动信号均为周期性脉冲信号，触控驱动信号的脉冲高电位时长是控制信号脉冲高电位时长的m倍。
  12. 如权利要求11所述的窄边框In Cell型触控显示面板结构，其中，对于相邻的两条触控驱动信号，上一条触控驱动信号的下降沿与下一条触控驱动信号的上升沿同时产生；对于相邻的两条控制信号，上一条控制信号的下降沿与下一条控制信号的上升沿同时产生。
  13. 如权利要求9所述的窄边框In Cell型触控显示面板结构，其中，触控感应信号经由触控感应电路传回至IC驱动模块。
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