WO2017045247A1 - 全嵌入式触摸屏及移动装置 - Google Patents

全嵌入式触摸屏及移动装置 Download PDF

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Publication number
WO2017045247A1
WO2017045247A1 PCT/CN2015/093163 CN2015093163W WO2017045247A1 WO 2017045247 A1 WO2017045247 A1 WO 2017045247A1 CN 2015093163 W CN2015093163 W CN 2015093163W WO 2017045247 A1 WO2017045247 A1 WO 2017045247A1
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Prior art keywords
touch screen
transistors
fully embedded
liquid crystal
data lines
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PCT/CN2015/093163
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English (en)
French (fr)
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纪飞林
安泰生
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深圳市华星光电技术有限公司
武汉华星光电技术有限公司
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Priority to US14/893,152 priority Critical patent/US10013085B2/en
Publication of WO2017045247A1 publication Critical patent/WO2017045247A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • G06F3/04184—Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/121—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode common or background

Definitions

  • the present invention generally relates to the field of liquid crystal display technology, and more particularly to a fully embedded touch screen and a mobile device including the fully embedded touch screen.
  • the touch screen panel has gradually spread to people's lives.
  • the in-cell touch screen has many terminal equipment manufacturers because of its advantages of making the whole panel lighter and thinner. The favor and become the future development trend.
  • the embedded touch screen embeds the touch circuit into the display panel to realize the integration of the touch panel and the display panel.
  • the touch sensor is generally disposed in a thin film transistor (TFT).
  • TFT thin film transistor
  • One side (as shown in Figure 1).
  • the embedded touch screen can be divided into a mutual capacitance and a self-capacitive touch screen, wherein the self-capacitance touch screen utilizes the principle of self-capacitance to realize the detection of the finger touch position, specifically: setting a plurality of touch sensors disposed in the same layer and insulated from each other in the touch screen, When the human body does not touch the screen, the capacitance of each touch sensor is a fixed value.
  • the capacitance of the touch sensor corresponding to the touch position is a fixed value superimposed on the human body capacitance, and the touch detection chip The touch position can be determined by detecting a change in the capacitance value of each touch sensor during the touch time period.
  • the touch circuit for implementing the touch function and the display circuit for realizing the display need to be driven to realize the touch function and the display function of the touch screen, respectively.
  • the touch circuit and the display circuit are usually scanned in a time-sharing manner, that is, while the touch screen is being driven, the touch operation on the touch screen is stopped.
  • the touch detection chip needs to be continuously detected during the touch time period.
  • the touch sensor can also be used as a common electrode (Vcom), which is coupled to the S pole (source) of the TFT through the storage capacitor. Whether it is a square wave or a sine wave, the charge coupled to the S pole of the TFT is the same polarity charge (see Figure 2). As shown in the figure, if the mobile phone is in the standby mode of the black screen for a long time (that is, the liquid crystal molecules are applied with the same charge for a long time), the liquid crystal is polarized, causing abnormality of the screen display.
  • the existing embedded touch screen cannot make the liquid crystal display of the terminal not be polarized when it is in the standby mode for a long time.
  • an object of the present invention is to provide a full-embedded touch screen and a mobile device including the fully-embedded touch screen, which can overcome the existing liquid crystal display in a standby mode by improving the architecture of the fully embedded touch screen.
  • a fully embedded touch screen including a plurality of sensor pads arranged in a matrix, a plurality of data lines arranged along a column direction of the matrix, and connected to the plurality of a data driver of the data line, wherein the fully embedded touch screen further includes a plurality of transistors disposed on the plurality of data lines, wherein each of the plurality of transistors is disposed on each of the data lines, each The drains of the transistors are connected to respective data lines, the source of each transistor is connected to a sensor pad, and the gates of the plurality of transistors are commonly connected to a particular enable terminal of the data driver.
  • the source of each transistor is coupled to a lowermost sensor pad of a column of sensor pads adjacent to the respective data line.
  • the source of each transistor is connected to any one of the sensor pads.
  • the plurality of sensor pads and the common electrode operate in a time division multiplexing manner, wherein the plurality of sensor pads operate as a common electrode during a normal display period of the liquid crystal panel, during the touch scanning period, The plurality of sensor pads perform a touch scan.
  • the fully embedded touch screen further includes a liquid crystal panel integrated with the fully embedded touch screen, a gate driver for driving the liquid crystal panel, and a plurality of gate lines for transmitting a gate driving signal to the liquid crystal panel, wherein The plurality of data lines are connected to the liquid crystal panel to transmit the data signals of the data driver to the liquid crystal panel.
  • the liquid crystal panel standby period includes a plurality of frames, each frame having a predetermined touch scanning period, and the plurality of sensor pads perform a touch scan in a predetermined touch scanning period of each frame, where During the Mth frame to the Nth frame, the specific enable terminal of the data driver outputs a low level signal, and the gate driver does not output a gate drive signal during the N+1 frame, after the touch scan period In the clearing period, the specific enable terminal of the data driver outputs a high level signal, and the gate driver transmits a gate driving signal to the plurality of gate lines one by one, the plurality of sensor pads working as a common electrode, Where M and N are natural numbers greater than 1 and N is greater than M.
  • the voltage level of the common electrode is a ground level.
  • a mobile device comprising the fully embedded touch screen of any of the above.
  • a new type of fully embedded touch screen can be obtained by adding a plurality of transistors in the full embedded touch screen. This improvement can effectively release the charge coupled to the liquid crystal terminal during the touch scan, thereby avoiding the occurrence of an abnormality in the picture display due to the polarization of the liquid crystal.
  • FIG. 1 shows a schematic cross-sectional view of a prior art fully embedded touch screen
  • FIG. 2 is a schematic diagram showing a display circuit in a prior art fully embedded touch screen
  • FIG. 3 illustrates a schematic structural diagram of a fully embedded touch screen according to an exemplary embodiment of the present invention
  • FIG. 4 illustrates a timing diagram of a fully embedded touch screen during normal display, in accordance with an exemplary embodiment of the present invention
  • FIG. 5 illustrates a timing diagram of a fully embedded touch screen while in standby, in accordance with an exemplary embodiment of the present invention.
  • FIG. 3 illustrates a structural diagram of a fully embedded touch screen according to an exemplary embodiment of the present invention.
  • a fully embedded touch screen includes: a plurality of sensor pads TP pq (p and q are integers not less than 1) arranged in a matrix, along a column direction of the matrix a plurality of data lines S t (t is an integer not less than 1) arranged, a data driver (not shown in FIG.
  • the transistor may be a field effect transistor (eg, an NMOS transistor or the like). It should be noted that various exemplary embodiments will be described below by taking an NMOS transistor as an example.
  • the source of each transistor can be connected to the lowermost sensor pad of a column of sensor pads adjacent to the respective data line.
  • the source of transistor S 1 to S 10 data lines corresponding to a T 1 to T 10 is a common electrode may be adjacent thereto and a first column sensor pads lowermost TP 1q is connected to the sensor pad.
  • the source of each of the transistors can also be connected to any one of the sensor pads.
  • the display panel disposed in the terminal may be a display panel that centralizes touch and display functions.
  • the fully embedded touch screen may further include a liquid crystal panel integrated with the fully embedded touch screen, a gate driver for driving the liquid crystal panel, and a plurality of gates for transmitting a gate driving signal to the liquid crystal panel A line (not shown in FIG. 1), wherein the plurality of data lines are connected to the liquid crystal panel to transmit a data signal of the data driver to the liquid crystal panel.
  • the touch detection function and the display function can be simultaneously implemented, and the full-embedded touch screen can adopt a working mode in which the sensor pad and the common electrode are time-multiplexed, for example, integrated with the fully embedded touch screen.
  • the plurality of sensor pads operate as a common electrode during a normal display period of the liquid crystal panel, and the plurality of sensor pads perform a touch scan during the touch scan period.
  • FIG. 4 illustrates a timing diagram of a fully embedded touch screen during normal display, in accordance with an exemplary embodiment of the present invention.
  • a plurality of frames may be included during normal display of the liquid crystal panel, each frame having a predetermined touch scan period and a normal display period.
  • the plurality of sensor pads can operate as a common electrode that can be touch driven during a touch scan period.
  • a touch scan is also required to detect whether the user performs a touch operation on the fully embedded touch screen.
  • the liquid crystal panel standby period may include a plurality of frames each having a predetermined touch scanning period, and the plurality of sensor pads are in a predetermined touch scanning period of each frame.
  • the touch scan is performed in the middle (as shown in FIG. 5, the sensor pad can generate a pulse signal due to the user's touch when performing the scan.
  • the specific enable terminal CLEAR_EN of the data driver outputs a low level signal, and the gate driver does not output the gate drive signal.
  • the data line can be in a high impedance state.
  • the plurality of sensor pads perform a touch scan, in a black screen standby period of each of the Mth frame to the Nth frame, A plurality of sensor pads operate as a common electrode, and the voltage level of the common electrode is at a ground level.
  • the specific enable terminal CLEAR_EN of the data driver outputs a high level signal, and the gate driver goes to the plurality of strips
  • the gate lines transmit gate drive signals one by one, the plurality of sensor pads operating as a common electrode.
  • the transistors disposed on each of the data lines are turned on, so that each of the data lines can be connected to the common electrode through the turned-on transistors.
  • the voltage level of the common electrode is a ground level.
  • each NMOS transistor can be turned on in response to a high level signal received by its gate, such that the plurality of data lines are connected to the plurality of sensor pads, and The plurality of sensor pads operate as a common electrode during the clearing period, thereby erasing the charge coupled to the liquid crystal during the touch scanning phase, thereby preventing the liquid crystal from being polarized, and at the same time reducing the power consumption of the data driver.
  • an exemplary embodiment of the present invention also provides a mobile device including the above-described fully embedded touch screen.
  • the mobile device can be any product or component having a display function, such as a cell phone, tablet, television, display, notebook, navigator, and the like.
  • a novel type can be obtained by adding a plurality of transistors in a fully embedded touch screen.
  • the fully embedded touch screen by this improvement, can effectively release the charge coupled to the liquid crystal terminal during the touch scan, thereby avoiding the occurrence of abnormality of the screen display due to the polarization of the liquid crystal.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Human Computer Interaction (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
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  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

本发明公开了一种全嵌入式触摸屏及移动装置，包括以矩阵方式排列的多个传感器垫、沿所述矩阵的列方向布置的多条数据线以及连接到所述多条数据线的数据驱动器，其特征在于，所述全嵌入式触摸屏还包括设置在所述多条数据线上的多个晶体管，其中，每条数据线上设置有所述多个晶体管中的一个晶体管，每个晶体管的漏极连接到相应的数据线，每个晶体管的源极连接到一个传感器垫，并且所述多个晶体管的栅极共同连接到数据驱动器的特定使能端。根据所述全嵌入式触摸屏及其显示装置，能够有效地释放掉在在触摸扫描期间耦合到液晶端的电荷，从而避免了由于液晶被极化而导致的画面显示异常情况的发生。

Description

全嵌入式触摸屏及移动装置 技术领域
本发明总体说来涉及液晶显示技术领域，更具体地讲，尤其涉及一种全嵌入式触摸屏以及包括所述全嵌入式触摸屏的移动装置。
背景技术
随着液晶显示技术的飞速发展，触摸屏(Touch Screen Panel)已经逐渐遍及人们的生活，其中，嵌入式(in-cell)触摸屏由于其能使得整个面板变得更加轻薄的优点得到了很多终端设备厂商的青睐并成为了未来的发展趋势。
嵌入式触摸屏是将触摸电路嵌入到显示面板中以实现触摸面板和显示面板的一体化，目前，对于全嵌入式(full-in-cell)触摸屏的架构，一般将触摸传感器设置在薄膜晶体管(TFT)的一侧(如图1所示)。这里，嵌入式触摸屏可以分为互电容和自电容触摸屏，其中，自电容触摸屏利用自电容的原理实现检测手指触摸位置，具体为：在触摸屏中设置多个同层设置且相互绝缘的触摸传感器，当人体未触碰屏幕时，各触摸传感器所承受的电容为一固定值，当人体触碰屏幕时，触碰位置对应的触摸传感器所承受的电容为固定值叠加人体电容，触控侦测芯片在触控时间段通过检测各触摸传感器的电容值变化可以判断出触控位置。其中，为了同时实现显示和触控功能，对于嵌入式触摸屏，需要对用于实现触摸功能的触摸电路和用于实现显示的显示电路进行驱动，以分别实现触摸屏的触摸功能和显示功能。现有的驱动方法中，通常是分时对触摸电路和显示电路进行扫描，即在驱动触摸屏显示的同时，停止侦测触摸屏上的触摸操作。
通常，在将嵌入式显示屏应用于手机领域时，手机厂商推出了很多新的触摸功能，例如，在手机待机模式下，通过一个特定手势(例如，双击手势)唤醒手机使其进入特定的应用程序，在这种情况下，需要不断对触摸电路进行扫描，以侦测是否进行手势唤醒，因此，对于自电容内嵌式触摸屏，触控侦测芯片在触控时间段内需要不断进行检测，由于触摸传感器也可作为公共电极 (Vcom)，则会通过储能电容而耦合到TFT的S极(源极)，无论是方波或弦波，都会造成耦合到TFT的S极的电荷为同一极性的电荷(如图2所示)，如果手机长时间处于黑屏的待机模式下(即，液晶分子长时间被施加同一电荷)时则会使液晶被极化，造成画面显示异常。
因此，现有的嵌入式触摸屏无法使终端的液晶显示屏长时间处于待机模式时不被极化。
发明内容
有鉴于此，本发明目的是提供一种全嵌入式触摸屏以及包括所述全嵌入式触摸屏的移动装置，通过改进全嵌入式触摸屏的架构，以克服现有的液晶显示屏长时间处于待机模式时被极化的问题。
根据本发明示例性实施例的一方面，提供一种全嵌入式触摸屏，包括以矩阵方式排列的多个传感器垫、沿所述矩阵的列方向布置的多条数据线以及连接到所述多条数据线的数据驱动器，其中，所述全嵌入式触摸屏还包括设置在所述多条数据线上的多个晶体管，其中，每条数据线上设置有所述多个晶体管中的一个晶体管，每个晶体管的漏极连接到相应的数据线，每个晶体管的源极连接到一个传感器垫，并且所述多个晶体管的栅极共同连接到数据驱动器的特定使能端。
可选地，每个晶体管的源极连接到与相应的数据线相邻的一列传感器垫中的最下端的传感器垫。
可选地，每个晶体管的源极连接到任意一个传感器垫。
可选地，所述多个传感器垫与公共电极以分时复用方式工作，其中，在液晶面板正常显示时间段期间，所述多个传感器垫作为公共电极工作，在触摸扫描时间段期间，所述多个传感器垫执行触摸扫描。
可选地，所述全嵌入式触摸屏还包括与所述全嵌入式触摸屏一体化的液晶面板、驱动液晶面板的栅极驱动器以及将栅极驱动信号传输到液晶面板的多条栅极线，其中，所述多条数据线连接到液晶面板，以将数据驱动器的数据信号传输到液晶面板。
可选地，液晶面板待机时间段包括多个帧，每个帧都具有预定的触摸扫描时间段，所述多个传感器垫在每个帧的预定的触摸扫描时间段中执行触摸扫描，其中，在第M帧至第N帧期间，数据驱动器的所述特定使能端输出低电平信号，栅极驱动器不输出栅极驱动信号，在第N+1帧期间，在触摸扫描时间段之后的清屏时间段中，数据驱动器的所述特定使能端输出高电平信号，栅极驱动器向所述多条栅极线逐条发送栅极驱动信号，所述多个传感器垫作为公共电极工作，其中，M和N为大于1的自然数且N大于M。
可选地，在清屏时间段中，所述公共电极的电压电平为地电平。
根据本发明示例性实施例的另一方面，提供一种移动装置，包括如上述任一种所述全嵌入式触摸屏。
根据本发明示例性实施例提供的全嵌入式触摸屏以及包括所述全嵌入式触摸屏的移动装置，可通过在全嵌入式触摸屏中增加多个晶体管的方式得到一种新型的全嵌入式触摸屏，通过这种改进能够有效地释放掉在触摸扫描期间耦合到液晶端的电荷，从而避免了由于液晶被极化而导致的画面显示异常情况的发生。
附图说明
通过下面结合附图进行的详细描述，本发明示例性实施例的上述和其它目的、特点和优点将会变得更加清楚，其中：
图1示出现有技术的全嵌入式触摸屏的剖面示意图；
图2示出现有技术的全嵌入式触摸屏中的显示电路的示意图；
图3示出根据本发明示例性实施例的全嵌入式触摸屏的结构示意图；
图4示出根据本发明示例性实施例的全嵌入式触摸屏在正常显示时的时序图；
图5示出根据本发明示例性实施例的全嵌入式触摸屏在待机时的时序图。
具体实施方式
现将详细参照本发明的示例性实施例，所述实施例的示例在附图中示出， 其中，相同的标号始终指的是相同的部件。以下将通过参照附图来说明所述实施例，以便解释本发明。
图3示出根据本发明示例性实施例的全嵌入式触摸屏的结构示意图。
如图3所示，根据本发明示例性实施例的全嵌入式触摸屏包括：以矩阵方式排列的多个传感器垫TPpq(p和q为不小于1的整数)、沿所述矩阵的列方向布置的多条数据线St(t为不小于1的整数)、连接到所述多条数据线St的数据驱动器(图3中未示出)以及设置在所述多条数据线上的多个晶体管Ta(a为不小于1的整数)，其中，每条数据线上设置有所述多个晶体管中的一个晶体管，每个晶体管的漏极连接到相应的数据线，每个晶体管的源极连接到一个传感器垫，并且所述多个晶体管的栅极共同连接到数据驱动器的特定使能端CLEAR_EN。这里，作为示例，所述晶体管可以是场效应晶体管(例如，NMOS管等)。应注意，以下将以NMOS管为例来说明各个示例性实施例。
这里，由于全嵌入式触摸屏的所有传感器垫可同时进行收发信号，并且在触摸扫描阶段后都会接至地准位，因此，可有多种方式将每个晶体管的源极连接至各个传感器垫。例如，所述每个晶体管的源极可连接到与相应的数据线相邻的一列传感器垫中的最下端的传感器垫。譬如说，参照图3，S1至S10条数据线所对应的晶体管T1至T10的源极可共同和与其相邻的第一列传感器垫中的最下端的传感器垫TP1q相连。通过这种方式，可使全嵌入式触摸屏的内部走线更加规范，从而节省了制备成本。此外，作为另一示例，所述每个晶体管的源极还可连接到任意一个传感器垫。
此外，由于全嵌入式触摸屏是将触摸电路嵌入到显示面板中以实现触摸面板和显示面板的一体化，因此，通常，设置于终端中的显示面板可以是集中触摸和显示功能的显示面板。
这里，作为附件部件，所述全嵌入式触摸屏可还包括与所述全嵌入式触摸屏一体化的液晶面板、驱动液晶面板的栅极驱动器以及将栅极驱动信号传输到液晶面板的多条栅极线(在图1中未示出)，其中，所述多条数据线连接到液晶面板，以将数据驱动器的数据信号传输到液晶面板。
作为示例，为了实现全嵌入式触摸屏可同时实现触摸检测功能和显示功能，全嵌入式触摸屏可采用传感器垫与公共电极分时复用的工作方式，例如，在与所述全嵌入式触摸屏一体化的液晶面板正常显示时间段期间，所述多个传感器垫作为公共电极工作，在触摸扫描时间段期间，所述多个传感器垫执行触摸扫描。
图4示出根据本发明示例性实施例的全嵌入式触摸屏在正常显示时的时序图。如图4所示，在液晶面板正常显示期间可包括多个帧，每个帧都具有预定的触摸扫描时间段和正常显示时间段，由图4可知，当液晶面板处于正常显示时间段期间，所述多个传感器垫可作为公共电极工作，在触摸扫描时间段期间，可对所述多个传感器垫进行触摸驱动。
此外，除了可在全嵌入式触摸屏正常显示的情况下进行触摸扫描之外，当液晶面板处于黑屏待机期间，同样需要进行触摸扫描，以检测用户是否对全嵌入式触摸屏执行了触摸操作。
下面结合图5来详细描述根据本发明示例性实施例的全嵌入式触摸屏待机时的示例。具体说来，如图5所示，液晶面板待机时间段可包括多个帧，每个帧都具有预定的触摸扫描时间段，所述多个传感器垫在每个帧的预定的触摸扫描时间段中执行触摸扫描(如图5所示，在执行出没扫描时，传感器垫可由于用户触摸而产生脉冲信号)。更具体地讲，在第M帧至第N帧期间，数据驱动器的特定使能端CLEAR_EN输出低电平信号，栅极驱动器不输出栅极驱动信号。此时，数据线可处于高阻态。此外，在第M帧至第N帧中的每个帧的触摸扫描时间段期间，多个传感器垫执行触摸扫描，在第M帧至第N帧中的每个帧的黑屏待机时间段内，多个传感器垫作为公共电极工作，且公共电极的电压电平为地电平。其后，在第N+1帧期间，在执行触摸扫描的触摸扫描时间段之后的清屏时间段中，数据驱动器的特定使能端CLEAR_EN输出高电平信号，栅极驱动器向所述多条栅极线逐条发送栅极驱动信号，所述多个传感器垫作为公共电极工作。此时，设置在每条数据线上的晶体管导通，从而每条数据线可通过导通的晶体管连接到公共电极。这里，作为示例，在清屏时间段中，所述公共电极的电压电平为地电平。
也就是说，由于在清屏时间段中，数据驱动器的所述特定使能端输出高电 平信号，因此，以NMOS管为例，每个NMOS管可响应于其栅极接收到的高电平信号导通，使得所述多条数据线与所述多个传感器垫相连，并且，由于所述多个传感器垫在清屏时间段作为公共电极工作，因此，可清除在触摸扫描阶段耦合到液晶上的电荷，从而防止液晶被极化，同时，也降低了数据驱动器的功耗。
此外，基于同一发明构思，本发明示例性实施例还提供一种包括上述全嵌入式触摸屏的移动装置。作为示例，所述移动装置可以是手机、平板电脑、电视机、显示器、笔记本电脑、导航仪等任何具有显示功能的产品或部件。
综上所述，在根据本发明示例性实施例的全嵌入式触摸屏以及包括所述全嵌入式触摸屏的移动装置中，可通过在全嵌入式触摸屏中增加多个晶体管的方式得到一种新型的全嵌入式触摸屏，通过这种改进能够有效地释放掉在触摸扫描期间耦合到液晶端的电荷，从而避免了由于液晶被极化而导致的画面显示异常情况的发生。
显然，本发明的保护范围并不局限于上诉的具体实施方式，本领域的技术人员可以对发明进行各种改动和变型而不脱离本发明的精神和范围。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 (8)

  1. 一种全嵌入式触摸屏，包括以矩阵方式排列的多个传感器垫、沿所述矩阵的列方向布置的多条数据线以及连接到所述多条数据线的数据驱动器，其中，所述全嵌入式触摸屏还包括设置在所述多条数据线上的多个晶体管，其中，每条数据线上设置有所述多个晶体管中的一个晶体管，每个晶体管的漏极连接到相应的数据线，每个晶体管的源极连接到一个传感器垫，并且所述多个晶体管的栅极共同连接到数据驱动器的特定使能端。
  2. 如权利要求1所述的全嵌入式触摸屏，其中，每个晶体管的源极连接到与相应的数据线相邻的一列传感器垫中的最下端的传感器垫。
  3. 如权利要求1所述的全嵌入式触摸屏，其中，每个晶体管的源极连接到任意一个传感器垫。
  4. 如权利要求1所述的全嵌入式触摸屏，其中，所述多个传感器垫与公共电极以分时复用方式工作，其中，在液晶面板正常显示时间段期间，所述多个传感器垫作为公共电极工作，在触摸扫描时间段期间，所述多个传感器垫执行触摸扫描。
  5. 如权利要求1所述的全嵌入式触摸屏，其中，所述全嵌入式触摸屏还包括与所述全嵌入式触摸屏一体化的液晶面板、驱动液晶面板的栅极驱动器以及将栅极驱动信号传输到液晶面板的多条栅极线，其中，所述多条数据线连接到液晶面板，以将数据驱动器的数据信号传输到液晶面板。
  6. 如权利要求5所述的全嵌入式触摸屏，其中，液晶面板待机时间段包括多个帧，每个帧都具有预定的触摸扫描时间段，所述多个传感器垫在每个帧的预定的触摸扫描时间段中执行触摸扫描，
    其中，在第M帧至第N帧期间，数据驱动器的所述特定使能端输出低电平信号，栅极驱动器不输出栅极驱动信号，在第N+1帧期间，在触摸扫描时间段之后的清屏时间段中，数据驱动器的所述特定使能端输出高电平信号，栅极驱动器向所述多条栅极线逐条发送栅极驱动信号，所述多个传感器垫作为公共 电极工作，
    其中，M和N为大于1的自然数且N大于M。
  7. 如权利要求6所述的全嵌入式触摸屏，其中，在清屏时间段中，所述公共电极的电压电平为地电平。
  8. 一种移动装置，其中，包括全嵌入式触摸屏，所述全嵌入式触摸屏包括以矩阵方式排列的多个传感器垫、沿所述矩阵的列方向布置的多条数据线以及连接到所述多条数据线的数据驱动器，其中，所述全嵌入式触摸屏还包括设置在所述多条数据线上的多个晶体管，其中，每条数据线上设置有所述多个晶体管中的一个晶体管，每个晶体管的漏极连接到相应的数据线，每个晶体管的源极连接到一个传感器垫，并且所述多个晶体管的栅极共同连接到数据驱动器的特定使能端。
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