WO2016192245A1 - 一种集成触摸功能的显示装置及其驱动方法 - Google Patents

一种集成触摸功能的显示装置及其驱动方法 Download PDF

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Publication number
WO2016192245A1
WO2016192245A1 PCT/CN2015/090097 CN2015090097W WO2016192245A1 WO 2016192245 A1 WO2016192245 A1 WO 2016192245A1 CN 2015090097 W CN2015090097 W CN 2015090097W WO 2016192245 A1 WO2016192245 A1 WO 2016192245A1
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WIPO (PCT)
Prior art keywords
touch
touch detection
unit
display device
display
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PCT/CN2015/090097
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English (en)
French (fr)
Inventor
商广良
赵家阳
郑皓亮
韩明夫
廖峰
Original Assignee
京东方科技集团股份有限公司
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Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to EP15862137.5A priority Critical patent/EP3306446B1/en
Priority to US15/039,627 priority patent/US10503292B2/en
Publication of WO2016192245A1 publication Critical patent/WO2016192245A1/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
    • 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
    • G06F3/04182—Filtering of noise external to the device and not generated by digitiser components
    • 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
    • G06F3/0446—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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • 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
    • G09G3/2092—Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04107—Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/08—Details of timing specific for flat panels, other than clock recovery

Definitions

  • the present disclosure relates to a touch screen, and more particularly to a display device integrated with a touch function and a driving method of the display device.
  • the current touch technology generally adopts a time-sharing drive, that is, the timing controller divides a frame period into a display time T1 and a touch time T2. Charging the storage capacitor in the display device during the display time; for detecting the touch signal during the touch time, but this will cause the storage capacitor charging time to be shortened, affecting the display effect.
  • the present disclosure provides an integrated touch function display device including: a display unit; a touch detection circuit configured to perform touch detection, and generate a plurality of touch detection signals; and a driving unit configured to simultaneously drive data of the display unit Refresh and touch detection of the touch detection circuit, wherein the data refresh area and the touch detection area do not coincide.
  • the present disclosure also provides a driving method of a touch device integrated with a touch function, the display device including a display unit and a touch detection circuit, the method comprising: simultaneously driving data refresh of the display unit and touch detection of the touch detection circuit, wherein During the same period of time, the data refresh area and the touch detection area do not coincide.
  • the present disclosure prolongs the charging time of the display pixels by touching and displaying the simultaneous driving, and solves the problem that the charging time of the integrated touch high-resolution display device is insufficient.
  • a reference unit a reference voltage that is unaffected by the touch and reflects the signal interference caused by the display driving (ie, data refresh) in real time is obtained, thereby removing background noise in the touch detection, improving the signal-to-noise ratio, and ensuring touch recognition. The accuracy.
  • FIG. 1 is a schematic diagram of a display device with integrated touch function according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a first data refresh and touch scan method according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a second data refresh and touch scan method according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a first touch detection circuit according to an embodiment of the present invention.
  • FIG. 5 is a basic architectural diagram of noise processing of a first touch detection circuit according to an embodiment of the present invention.
  • FIG. 6 is a circuit diagram of a first touch detection circuit noise processing device according to an embodiment of the present invention.
  • FIG. 7 is a basic architectural diagram of noise processing of a second touch detection circuit according to an embodiment of the present invention.
  • FIG. 8 is a specific circuit diagram of a second touch detection circuit noise processing apparatus according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a second touch detection circuit according to an embodiment of the present invention.
  • FIG. 10 is a specific circuit diagram of a third touch detection circuit noise processing apparatus according to an embodiment of the present invention.
  • FIG. 11 is a specific circuit diagram of a fourth touch detection circuit noise processing device according to an embodiment of the present invention.
  • the present disclosure prolongs the charging time of the display pixels by touching and displaying the simultaneous driving, and solves the problem that the charging time of the integrated touch high-resolution display is insufficient.
  • a reference unit a reference voltage that is unaffected by the touch and reflects the signal interference caused by the display driving (ie, data refresh) in real time is obtained, thereby removing background noise in the touch detection, improving the signal-to-noise ratio, and ensuring touch recognition. The accuracy.
  • Display device for simultaneous touch and display unit data refreshing for example, shown in FIG. 1;
  • the driving method of simultaneously performing touch and display unit data refreshing for example, shown in FIG. 2 and FIG. 3;
  • Touch reference voltage structure for example, shown in Figures 4 and 9;
  • FIG. 1 is a schematic diagram of a display device with integrated touch function according to an embodiment of the present invention.
  • a display device having an integrated touch function includes a display unit 101 and a touch detection circuit 102.
  • the detection control unit 103 and the timing control unit 104 are configured to control touch detection by the touch detection circuit 102 and data refresh of the display unit 101, respectively.
  • the detection control unit 103 and the timing control unit 104 are driven by the driving unit 105 so that the touch detection by the touch detection circuit 102 and the data refresh of the display unit 101 are simultaneously performed.
  • FIG. 2 is a schematic diagram of a first data refresh and touch scan method in accordance with an embodiment of the present invention.
  • touch and data refresh use the same frequency, for example 60Hz, at the same time Interval, refresh different areas.
  • 60Hz for example 60Hz
  • Interval refresh different areas.
  • other frequencies may be employed.
  • the touch detection circuit scans (detects) the touch scan area as shown in FIG. 2a.
  • the touch detection circuit scans the touch scan area as shown in FIG. 2b.
  • the touch detection circuit scans the touch scan area as shown in Fig. 2c. as well as
  • the touch detection circuit scans the touch scan area as shown in FIG. 2d.
  • FIG. 3 is a schematic diagram of a second data refresh and touch scan method in accordance with an embodiment of the present invention.
  • the touch detection frequency employed is twice the data refresh rate, for example 120 Hz and 60 Hz, respectively, but those skilled in the art will appreciate that other frequencies may be employed. As shown in FIG. 3, in order to prevent the data refresh from overlapping with the touch detection area, it is necessary to establish different scanning orders.
  • the area scanned by the touch detection circuit is the touch detection area as shown in FIG. 3a.
  • the area scanned by the touch detection circuit is the touch detection area as shown in FIG. 3b.
  • the area scanned by the touch detection circuit is the touch detection area as shown in FIG. 3c.
  • the area scanned by the touch detection circuit is the touch detection area as shown in FIG. 3d.
  • the area scanned by the touch detection circuit is the touch detection area as shown in FIG. 3e.
  • the touch detection scanned area is the touch detection area as shown in FIG. 3f.
  • the area detected by the touch detection is the touch detection area as shown in FIG. 3g.
  • the scanned area is as shown in FIG. 3h.
  • the area scanned by the touch detection circuit is the touch detection area as shown in FIG. 3h. Then, repeat the above process.
  • FIG. 4 is a schematic structural diagram of a first touch detection circuit according to an embodiment of the present invention.
  • the touch detection and the data refresh are performed simultaneously, the touch detection is interfered with by signals such as the gate signal and the data signal when the data is refreshed, the noise is large, and changes in real time.
  • the present application proposes a scheme of adding a reference electrode.
  • the first touch detection circuit includes a touch detection unit, a reference unit, and a denoising processing unit.
  • the touch detection unit includes a plurality of touch driving electrodes Tx and a plurality of touch sensing electrodes Rx configured to perform touch detection and generate a plurality of touch detection signals.
  • the plurality of touch driving electrodes Tx extend in a first direction (for example, an X axis) and are arranged in a second direction (for example, a Y axis) that intersects the first direction.
  • the plurality of touch sensing electrodes Rx extend in the second direction and are arranged along the first direction.
  • the first to mth touch driving electrodes Tx may be included and the first to nth touch sensing electrodes Rx may be included.
  • the plurality of touch driving electrodes Tx touch drive electrodes Tx and the touch sensing electrodes Rx cross.
  • the touch driving electrode Tx is shown below the touch sensing electrode Rx in FIG. 4, it will be understood by those skilled in the art that the touch driving electrode Tx may also be disposed above the touch sensing electrode Rx.
  • the reference unit includes a reference electrode C that overlaps all of the touch drive electrodes Tx in the touch detection unit and is parallel to the touch sense electrodes Rx, which is configured to provide a reference voltage signal.
  • the reference electrode C is located outside the display area, overlaps all the touch driving electrodes Tx in the touch detecting unit, and shields the external touch from the reference voltage signal with a shielding layer S.
  • the shielding layer is disposed above the reference electrode C such that the reference electrode becomes a reliable noise reference source and is not affected by the touch.
  • the reference voltage signal can feedback data interference in real time.
  • the layer of metal can be a separate layer on the color film.
  • a denoising processing unit configured to receive a touch detection signal from the touch sensing electrode Rx and a reference voltage signal from the reference electrode, and process the touch detection signal and the reference voltage signal to generate a touch result signal that removes data driving interference.
  • FIG. 5 is a basic architectural diagram of noise processing of a first touch detection circuit according to an embodiment of the present invention.
  • the touch detection and processing process includes three parts: a touch detection unit 501, a reference unit 502, and a denoising processing unit 503.
  • the touch detection unit 501 detects a change in the touch detection signal due to the touch, and at the same time, obtains the reference voltage signal through the reference unit 502, and touches the detection signal.
  • the reference voltage signal passes through the denoising processing unit 503 to remove background noise generated by the data refresh.
  • the denoised touch result signal is output to the touch recognition system for subsequent touch recognition processing.
  • FIG. 6 is a specific circuit diagram of a first touch detection circuit noise processing apparatus according to an embodiment of the present invention. As shown in FIG. 6, where the touch detection circuit is used to implement the touch detection unit in FIG. 5; the reference reception circuit is used to implement the reference unit in FIG. 5; the subtraction circuit 601 is used to implement the denoising processing unit in FIG.
  • the denoising processing unit can obtain a touch result signal that removes data driving interference.
  • the touch detection circuit includes a plurality of touch drive electrodes and a plurality of touch sensing electrodes configured to generate a touch detection signal.
  • the reference receiving circuit includes a reference electrode that overlaps all of the touch drive electrodes and is parallel to the touch sense electrodes, configured to provide a reference voltage signal.
  • the subtraction circuit 601 is configured to receive a touch detection signal from the touch detection circuit and a reference voltage signal from the reference reception circuit, and subtract the two signals to obtain a touch result signal from which the data drive interference is removed.
  • the denoising processing unit includes n subtracting circuits. For the sake of brevity, it will not be repeated here.
  • FIG. 7 is a basic architectural diagram of noise processing of a second touch detection circuit according to an embodiment of the present invention.
  • the touch detection and processing process includes a touch detection unit 701, a reference unit 702, a denoising processing unit 703, and a touch recognition unit 704.
  • the touch detection signal is detected by the touch detection unit 701.
  • the reference voltage signal is obtained by the reference unit 702, and the touch detection signal and the reference voltage signal are passed through the denoising processing unit 703 to remove the background noise generated by the data refresh to obtain the removed data.
  • the touched result signal of the disturbance is driven.
  • the touch recognition unit 704 determines whether a touch has occurred based on the touch result signal, and outputs the determination result to the system. That is, the touch detecting unit 701 detects whether there is a change in the touch detection signal, and then recognizes whether or not a touch has occurred by the touch recognition unit 704.
  • FIG. 8 is a specific circuit diagram of noise processing of a second touch detection circuit according to an embodiment of the present invention.
  • the touch detection circuit is used to implement the touch detection unit in FIG. 7; the reference reception circuit is used to implement the reference unit in FIG. 7; the subtraction circuit 801 is used to implement the denoising processing unit in FIG.
  • the denoising processing unit can obtain a touch result signal for removing data driving interference; the comparing circuit 802 is configured to implement the touch recognizing unit of FIG. 7 for determining whether a touch occurs.
  • the touch detection circuit includes a plurality of touch driving electrodes and a plurality of touch sensing electrodes, configured to generate Into the touch detection signal.
  • the reference receiving circuit includes a reference electrode that overlaps all of the touch drive electrodes and is parallel to the touch sense electrodes, configured to provide a reference voltage signal.
  • the subtraction circuit 701 is configured to receive a touch detection signal from the touch detection circuit and a reference voltage signal from the reference reception circuit, and subtract the two signals to obtain a touch result signal from which the data drive interference is removed.
  • the comparison circuit 802 compares the touch result signal from the denoising processing unit with the preset reference signal Vref, and when the comparison circuit 802 determines that the touch result signal is large, it recognizes that a touch has occurred.
  • the preset reference signal can be set according to the actual circuit. For example, the preset reference signal can be set to a ground signal.
  • the denoising processing unit includes n subtracting circuits
  • the touch recognizing unit includes n comparing circuits.
  • FIG. 9 is a schematic structural diagram of a second touch detection circuit according to an embodiment of the present invention.
  • the second touch detection circuit includes a touch detection unit, a reference unit, and a denoising processing unit.
  • the touch detection unit includes m touch driving electrodes Tx and n touch sensing electrodes Rx that cross each other, is configured to perform touch detection, and generates a touch detection signal.
  • the touch detection unit shown in FIG. 9 is the same as that in FIG. 4, and therefore, details are not described herein again.
  • the reference unit includes a plurality of reference electrodes C_1 C C_n configured to provide a reference voltage for each of the touch sensing electrodes Rx. As shown in FIG. 9, the plurality of reference electrodes are located in the display area, and a reference electrode is added beside each touch sensing electrode Rx, the reference electrode overlaps the touch driving electrode Tx, and a shielding layer S_1 ⁇ S_n is used. Shield external interference from interference with the reference voltage signal.
  • the shielding layer S is disposed above the reference electrode C such that the reference electrode becomes a reliable noise reference source and is not affected by the touch.
  • the layer of metal can be a separate layer on the color film.
  • each touch sensing electrode Rx is added next to each touch sensing electrode Rx in FIG. 9, those skilled in the art should understand that it is possible to touch each of the strips, or two, or three according to the actual noise influence.
  • a reference electrode is added next to the sensing electrode Rx.
  • a denoising processing unit configured to receive a touch detection signal from the touch sensing electrode Rx and a reference voltage signal from the reference electrode, and process the touch detection signal and the reference voltage signal to generate a touch result signal that removes data driving interference.
  • FIG. 10 is a specific circuit diagram of a third touch detection circuit noise processing apparatus according to an embodiment of the present invention.
  • the denoising reference voltage is shared from the original one to each Groups (or each group) share a single reference voltage. This can more effectively reduce the impact of signal delay, thus better achieving the denoising function.
  • FIG. 11 is a specific circuit diagram of a fourth touch detection circuit noise processing device according to an embodiment of the present invention.
  • the denoising reference voltage is shared from the original one, and each group (or each two or more groups) shares one reference voltage. This can more effectively reduce the impact of signal delay, thus better achieving the denoising function.
  • the denoising processing unit and the touch recognition unit that connect one touch sensing electrode and the reference electrode pair are shown in FIG. 11, but those skilled in the art can understand that the same is used for other touch sensing electrodes and reference electrode pairs.
  • the method performs denoising processing. That is, for each touch sensing electrode and reference electrode pair, a subtraction circuit and a comparison circuit are included.

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Abstract

一种集成触摸功能的显示装置及其驱动方法，该集成触摸功能的显示装置包括：显示单元(101)；触摸检测电路(102)，被配置以进行触摸检测，并生成多个触摸检测信号；以及驱动单元(105)，被配置以同时驱动显示单元(101)的数据刷新以及触摸检测电路(102)的触摸检测，其中，数据刷新区域和触摸检测区域不重合。通过触摸和显示同时驱动，延长了显示像素的充电时间，解决了集成触摸高分辨率显示装置的充电时间不足的问题。同时，通过增加参考单元，得到不受触摸影响且实时反映显示驱动带来的信号干扰的参考电压，从而能够去除触摸检测中的背景噪声，提高信噪比，保证触摸识别的准确性。

Description

一种集成触摸功能的显示装置及其驱动方法 技术领域
本公开涉及触摸屏，更具体地说，涉及集成触摸功能的显示装置以及该显示装置的驱动方法。
背景技术
目前的触摸技术一般采用的是分时驱动，即时序控制器将一帧周期时分(time-divide)成显示时间T1和触摸时间T2。在显示时间内给显示装置中的存储电容充电；在触摸时间内，用于触摸信号的探测，但这样会造成存储电容充电时间缩短，影响显示效果。
发明内容
本发明的另外方面和优点部分将在后面的描述中阐述，还有部分可从描述中明显地看出，或者可以在本发明的实践中得到。
本公开提供了一种集成触摸功能的显示装置，包括：显示单元；触摸检测电路，被配置以进行触摸检测，并生成多个触摸检测信号；以及驱动单元，被配置以同时驱动显示单元的数据刷新以及触摸检测电路的触摸检测，其中，数据刷新区域和触摸检测区域不重合。
本公开还提供一种集成触摸功能的显示装置的驱动方法，所述显示装置包括显示单元和触摸检测电路，该方法包括：同时驱动显示单元的数据刷新以及触摸检测电路的触摸检测，其中，在同一时间段，数据刷新区域和触摸检测区域不重合。
本公开通过触摸和显示同时驱动，延长了显示像素的充电时间，解决集成触摸高分辨率显示装置的充电时间不足的问题。同时，通过增加参考单元，得到不受触摸影响且实时反映显示驱动(即，数据刷新)带来的信号干扰的参考电压，从而能够去除触摸检测中的背景噪声，提高信噪比，保证触摸识别的准确性。
附图说明
通过结合附图对本发明的优选实施例进行详细描述，本发明的上述和其他目的、特性和优点将会变得更加清楚，其中相同的标号指定相同结构的单元，并且在其中：
图1是根据本发明实施例的集成触摸功能的显示装置的示意图；
图2是根据本发明实施例的第一数据刷新和触摸扫描方法示意图；
图3是根据本发明实施例的第二数据刷新和触摸扫描方法示意图；
图4是根据本发明实施例的第一触摸检测电路结构示意图；
图5是根据本发明实施例的第一触摸检测电路噪声处理的基本构架图；
图6是根据本发明实施例的第一触摸检测电路噪声处理装置的电路图；
图7是根据本发明实施例的第二触摸检测电路噪声处理的基本构架图；
图8是根据本发明实施例的第二触摸检测电路噪声处理装置的具体电路图；
图9是根据本发明实施例的第二触摸检测电路结构示意图；
图10是根据本发明实施例的第三触摸检测电路噪声处理装置的具体电路图；
图11是根据本发明实施例的第四触摸检测电路噪声处理装置的具体电路图。
具体实施方式
下面将参照示出本发明实施例的附图充分描述本发明。然而，本发明可以以许多不同的形式实现，而不应当认为限于这里所述的实施例。相反，提供这些实施例以便使本公开透彻且完整，并且将向本领域技术人员充分表达本发明的范围。在附图中，为了清楚起见放大了组件。
应当理解，当称“元件”“连接到”或“耦接”到另一元件时，它可以是直接连接或耦接到另一元件或者可以存在中间元件。相反，当称元件“直接连接到”或“直接耦接到”另一元件时，不存在中间元件。相同的附图标记指示相同的元件。这里使用的术语“和/或”包括一个或多个相关列出的项目的任何和所有组合。
应当理解，尽管这里可以使用术语第一、第二、第三等描述各个元件、组件和/或部分，但这些元件、组件和/或部分不受这些术语限制。这些术语仅仅用于将元件、组件或部分相互区分开来。因此，下面讨论的第一元件、组 件或部分在不背离本发明教学的前提下可以称为第二元件、组件或部分。
这里使用的术语仅仅是为了描述特定实施例的目的，而并不意图限制本发明。这里使用的单数形式“一”、“一个”和“那(这个)”也意图包含复数形式，除非上下文中明确地指出不包含。应当理解，术语“包括”当用在本说明书中时指示所述特征、整数、步骤、操作、元件和/或组件的存在，但并不排除一个或多个其他特征、整数、步骤、操作、元件、组件和/或其组合的存在或添加。
除非另有定义，这里使用的所有术语(包括技术和科学术语)具有与本发明所属领域的普通技术人员共同理解的相同含义。还应当理解，诸如在通常字典里定义的那些术语应当被解释为具有与它们在相关技术的上下文中的含义相一致的含义，而不应用理想化或极度形式化的意义来解释，除非这里明确地这样定义。
本公开通过触摸和显示同时驱动，延长了显示像素的充电时间，解决集成触摸高分辨率显示器的充电时间不足的问题。同时，通过增加参考单元，得到不受触摸影响且实时反映显示驱动(即，数据刷新)带来的信号干扰的参考电压，从而能够去除触摸检测中的背景噪声，提高信噪比，保证触摸识别的准确性。
为了详细说明本公开技术方案，特举出实施例。
1、触摸和显示单元数据刷新同时进行的显示装置，例如示于图1；
2、触摸和显示单元数据刷新同时进行的驱动方法，例如示于图2和图3；
3、触摸参考电压结构，例如示于图4和图9；
4、触摸信号监测电路和方法，例如示于图5-8以及图10-11。
图1是根据本发明实施例的集成触摸功能的显示装置的示意图。
如图1所示，具有集成触摸功能的显示装置包含显示单元101和触摸检测电路102。检测控制单元103和时序控制单元104被配置以分别对触摸检测电路102的触摸检测以及显示单元101的数据刷新进行控制。为了实现触摸检测和数据刷新的同时进行，利用驱动单元105来对检测控制单元103和时序控制单元104进行驱动，使得同时进行触摸检测电路102的触摸检测以及显示单元101的数据刷新。
图2是根据本发明实施例的第一数据刷新和触摸扫描方法示意图。
在图2中，触摸和数据刷新采用相同频率，例如可以是60Hz，在同一时 间段，刷新不同区域。但本领域技术人员应该理解也可以采用其他频率。
以将每帧扫描时间分为4个时间段为例进行说明。
在T1时间段，当显示单元数据刷新如图2a中所示的数据刷新区域时，触摸检测电路扫描(检测)如图2a中所示的触摸扫描区域。
在T2时间段，当显示单元数据刷新如图2b中所示的数据刷新区域时，触摸检测电路扫描如图2b中所示的触摸扫描区域。
在T3时间段，当显示单元数据刷新如图2c中所示的数据刷新区域时，触摸检测电路扫描如图2c中所示的触摸扫描区域。以及
在T4时间段，当显示单元数据刷新如图2d中所示的数据刷新区域时，触摸检测电路扫描如图2d中所示的触摸扫描区域。
然后，重复以上过程。
图3是根据本发明实施例的第二数据刷新和触摸扫描方法示意图。
在图3中，采用的触摸检测频率是数据刷新频率的两倍，例如可以分别是120Hz和60Hz，但本领域技术人员应该理解也可以采用其他频率。如图3所示，为了防止数据刷新与触摸检测区域重合，需要制定不同的扫描顺序。
以将每帧扫描时间分为8个时间段为例进行说明。
在T1时间段，当显示单元数据刷新扫描过的区域为如图3a所示的数据刷新区域时，触摸检测电路扫描过的区域为如图3a所示的触摸检测区域。
在T2时间段，当显示单元数据刷新扫描过的区域为如图3b所示的数据刷新区域时，触摸检测电路扫描过的区域为如图3b所示的触摸检测区域。
在T3时间段，当显示单元数据刷新扫描过的区域为如图3c所示的数据刷新区域时，触摸检测电路扫描过的区域为如图3c所示的触摸检测区域。
在T4时间段，当显示单元数据刷新扫描过的区域为如图3d所示的数据刷新区域时，触摸检测电路扫描过的区域为如图3d所示的触摸检测区域。
在T5时间段，当显示单元数据刷新扫描过的区域为如图3e所示的数据刷新区域时，触摸检测电路扫描过的区域为如图3e所示的触摸检测区域。
在T6时间段，当显示单元数据刷新扫描过的区域为如图3f所示的数据刷新区域时，触摸检测扫描过的区域为如图3f所示的触摸检测区域。
在T7时间段，当显示单元数据刷新扫描过的区域为如图3g所示的数据刷新区域时，触摸检测扫描过的区域为如图3g所示的触摸检测区域。
在T8时间段，当显示单元数据刷新扫描过的区域为如图3h所示的数据 刷新区域时，触摸检测电路扫描过的区域为如图3h所示的触摸检测区域。然后，重复以上过程。
图4是根据本发明实施例的第一触摸检测电路结构示意图。
由于触摸检测与数据刷新同时进行，因此触摸检测会受到数据刷新时的、诸如栅极信号和数据信号的信号干扰，噪声较大，并实时变化。为了去除噪声，本申请提出了增加参考电极的方案。
如图4所示，第一触摸检测电路包括触摸检测单元、参考单元和去噪处理单元。
触摸检测单元包括多条触摸驱动电极Tx和多条触摸感应电极Rx，被配置以进行触摸检测，并生成多个触摸检测信号。多条触摸驱动电极Tx在第一方向(例如X轴)上延伸，并且沿着与第一方向交叉的第二方向(例如Y轴)排列。多条触摸感应电极Rx在第二方向上延伸，并且沿着第一方向排列。例如，可以包括第一到第m条触摸驱动电极Tx以及可以包括第一到第n条触摸感应电极Rx。多条触摸驱动电极Tx触摸驱动电极Tx和触摸感应电极Rx交叉。虽然图4中示出了触摸驱动电极Tx在触摸感应电极Rx的下面，但本领域技术人员应该理解，触摸驱动电极Tx也可以设置在触摸感应电极Rx的上面。
参考单元包括与触摸检测单元中的所有触摸驱动电极Tx交叠且与触摸感应电极Rx平行的参考电极C，其被配置以提供参考电压信号。
如图4所示，该参考电极C位于显示区域外，与触摸检测单元中的所有触摸驱动电极Tx交叠，并且用一层屏蔽层S来屏蔽外部触摸对参考电压信号的干扰。所述屏蔽层设置于所述参考电极C之上，使得该参考电极成为可靠的噪声参考源，不会受触摸影响。该参考电压信号可以实时反馈数据干扰。例如，该层金属可以是彩膜上的单独一层。
去噪处理单元，其被配置以接收来自触摸感应电极Rx的触摸检测信号以及来自参考电极的参考电压信号，并处理触摸检测信号和参考电压信号以生成去除数据驱动干扰的触摸结果信号。
图5是根据本发明实施例的第一触摸检测电路噪声处理的基本构架图。
触摸检测与处理过程如图5所示，包括触摸检测单元501、参考单元502和去噪声处理单元503三部分。首先，触摸检测单元501因触碰检测到触摸检测信号变化，同时，通过参考单元502获得参考电压信号，触摸检测信号 和参考电压信号通过去噪处理单元503，去除数据刷新产生的背景噪声，最后，将去噪后的触摸结果信号输出给触摸识别系统以供后续的触摸识别处理。
图6是根据本发明实施例的第一触摸检测电路噪声处理装置的具体电路图。如图6所示，其中触摸检测电路用于实现图5中的触摸检测单元；参考接收电路用于实现图5中的参考单元；减法电路601用于实现图5中的去噪处理单元，通过去噪处理单元，可以得到去除数据驱动干扰的触摸结果信号。
触摸检测电路包括多条触摸驱动电极和多条触摸感应电极，被配置以生成触摸检测信号。参考接收电路包括与所有触摸驱动电极交叠且与触摸感应电极平行的参考电极，其被配置以提供参考电压信号。减法电路601用于接收来自触摸检测电路的触摸检测信号和来自参考接收电路的参考电压信号，并将这两个信号相减以得到去除数据驱动干扰的触摸结果信号。
虽然图6中仅给出了对一个触摸感应电极Rx进行连接和处理的电路，但本领域技术人员应该理解，对于其他触摸感应电极Rx进行类似的连接和处理。也即，对于多个触摸感应电极Rx_1～Rx_n，去噪处理单元包含n个减法电路。为了简洁，这里不再赘述。
图7是根据本发明实施例的第二触摸检测电路噪声处理的基本构架图。
触摸检测与处理过程如图7所示，包括触摸检测单元701、参考单元702、去噪声处理单元703和触摸识别单元704四部分。首先，通过触摸检测单元701检测触摸检测信号变化，同时，通过参考单元702获得参考电压信号，触摸检测信号和参考电压信号通过去噪处理单元703，去除数据刷新产生的背景噪声，以得到去除数据驱动干扰的触摸结果信号，最后，触摸识别单元704根据触摸结果信号来判断是否有触摸发生，并将判断结果输出给系统。也即，触摸检测单元701检测触摸检测信号有无变化，再通过触摸识别单元704来识别是否有触摸发生。
图8是根据本发明实施例的第二触摸检测电路噪声处理的具体电路图。
如图8所示，其中触摸检测电路用于实现图7中的触摸检测单元；参考接收电路用于实现图7中的参考单元；减法电路801用于实现图7中的去噪处理单元，通过该去噪处理单元，可以得到去除数据驱动干扰的触摸结果信号；比较电路802用于实现图7中的触摸识别单元，用于判断是否有触摸发生。
触摸检测电路包括多条触摸驱动电极和多条触摸感应电极，被配置以生 成触摸检测信号。参考接收电路包括与所有触摸驱动电极交叠且与触摸感应电极平行的参考电极，其被配置以提供参考电压信号。减法电路701用于接收来自触摸检测电路的触摸检测信号和来自参考接收电路的参考电压信号，并将这两个信号相减以得到去除数据驱动干扰的触摸结果信号。比较电路802比较来自去噪处理单元的触摸结果信号和预设的参考信号Vref，当比较电路802判断触摸结果信号大时，则识别有触摸发生。该预设的参考信号可以根据实际电路进行设定。例如，该预设的参考信号可以设置为地信号。
虽然图8中仅给出了对一个触摸感应电极Rx进行连接和处理的电路，但本领域技术人员应该理解，对于其他触摸感应电极Rx进行类似的连接和处理。也即，对于多个触摸感应电极Rx_1～Rx_n，去噪处理单元包含n个减法电路，触摸识别单元包含n个比较电路。
图9是根据本发明实施例的第二触摸检测电路结构示意图。
如图9所示，第二触摸检测电路包括触摸检测单元、参考单元和去噪处理单元。触摸检测单元包括彼此交叉的m条触摸驱动电极Tx和n条触摸感应电极Rx，被配置以进行触摸检测，并生成触摸检测信号。图9所示的触摸检测单元与图4中的相同，因此，在此不再赘述。
参考单元包括多条参考电极C_1～C_n，被配置以为每条触摸感应电极Rx提供参考电压。如图9所示，该多条参考电极位于显示区域内，在每一条触摸感应电极Rx旁增加一条参考电极，该参考电极与触摸驱动电极Tx交叠，并且用一层屏蔽层S_1～S_n来屏蔽外部触摸对参考电压信号的干扰。所述屏蔽层S设置于所述参考电极C之上，使得该参考电极成为可靠的噪声参考源，不会受触摸影响。例如，该层金属可以是彩膜上的单独一层。
虽然图9中示出了在每一条触摸感应电极Rx旁增加一条参考电极C1～Cn，但本领域技术人员应该理解，可以根据实际噪声影响情况，在每一条、或两条、或三条等触摸感应电极Rx旁增加一条参考电极。
去噪处理单元，其被配置以接收来自触摸感应电极Rx的触摸检测信号以及来自参考电极的参考电压信号，并处理触摸检测信号和参考电压信号以生成去除数据驱动干扰的触摸结果信号。
图10是根据本发明实施例的第三触摸检测电路噪声处理装置的具体电路图。
触摸检测与处理如图10所示，将去噪参考电压由原来共用一个，变为每 组(或每两组)共用一个参考电压。这样可以更有效地减少信号延迟的影响，从而更好地实现去噪功能。
为了简洁，图10中仅示出了连接一个触摸感应电极和参考电极对的去噪处理单元，但本领域技术人员可以理解，对于其他触摸感应电极和参考电极对，采用相同的方式进行去噪处理。也即，对于每个触摸感应电极和参考电极对，包括一个减法电路。
图11是根据本发明实施例的第四触摸检测电路噪声处理装置的具体电路图。
触摸检测与处理如图11所示，将去噪参考电压由原来共用一个，变为每组(或每两组或多组)共用一个参考电压。这样可以更有效地减少信号延迟的影响，从而更好地实现去噪功能。
为了简洁，图11中仅示出了连接一个触摸感应电极和参考电极对的去噪处理单元和触摸识别单元，但本领域技术人员可以理解，对于其他触摸感应电极和参考电极对，采用相同的方式进行去噪处理。也即，对于每个触摸感应电极和参考电极对，包括一个减法电路和一个比较电路。
本领域技术人员将认识到，为了简明和清楚，不在这里描绘或描述适于与本公开一起使用的所有系统的全部结构和操作。作为替代，仅描绘和描述对于本公开唯一或者对于本公开的理解必需的系统。所公开的系统的构造和操作的剩余部分可符合本领域已知的各种当前实现和实践。
当然，本领域技术人员将认识到，除非操作序列所特别指示或需要的，否则可省略、并发或顺序执行、或按照不同次序执行上述处理中的某些步骤。此外，没有组件、元件或处理应被看作对于任何特定要求保护的实施例所必要的，并且能在其他实施例中组合这些组件、元件或处理的每一个。
上面是对本发明的说明，而不应被认为是对其的限制。尽管描述了本发明的若干示例性实施例，但本领域技术人员将容易地理解，在不背离本发明的新颖教学和优点的前提下可以对示例性实施例进行许多修改。因此，所有这些修改都意图包含在权利要求书所限定的本发明范围内。应当理解，上面是对本发明的说明，而不应被认为是限于所公开的特定实施例，并且对所公开的实施例以及其他实施例的修改意图包含在所附权利要求书的范围内。本发明由权利要求书及其等效物限定。
本申请要求于2015年05月29日递交的中国专利申请第201510290237.2 号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (14)

  1. 一种集成触摸功能的显示装置，包括：
    显示单元；
    触摸检测电路，被配置以进行触摸检测，并生成多个触摸检测信号；以及
    驱动单元，被配置以同时驱动显示单元的数据刷新以及触摸检测电路的触摸检测，
    其中，在同一时间段，数据刷新区域和触摸检测区域不重合。
  2. 如权利要求1所述的显示装置，进一步包括：
    检测控制单元，被配置以对触摸检测电路的触摸检测进行控制；和
    时序控制单元，被配置以对显示单元的数据刷新进行控制，
    其中，所述驱动单元对所述检测控制单元和所述时序控制单元进行驱动，使得同时进行所述触摸检测电路的触摸检测以及所述显示单元的数据刷新。
  3. 如权利要求1所述的显示装置，其中，触摸检测电路包括：
    触摸检测单元，包括多条触摸驱动电极和与多条触摸驱动电极交叉的多条触摸感应电极，被配置以生成多个触摸检测信号；
    参考单元，包括至少一个参考电极，与所述触摸检测单元中的触摸驱动电极至少部分交叠，所述参考电极被配置以提供参考电压信号；
    去噪处理单元，其被配置以接收来自触摸感应电极的多个触摸检测信号以及来自参考电极的参考电压信号，并处理多个触摸检测信号和参考电压信号以生成去除数据驱动干扰的多个触摸结果信号。
  4. 如权利要求3所述的显示装置，其中，去噪处理单元包括多个减法电路，所述每个减法电路被配置以接收来自触摸检测单元的多个触摸检测信号中的一个和参考电压信号，并将触摸检测信号和参考电压信号相减以生成触摸结果信号。
  5. 如权利要求4所述的显示装置，其中，触摸检测电路还包括：触摸识别单元，被配置以根据触摸结果信号来判断是否有触摸发生。
  6. 如权利要求5所述的显示装置，其中，触摸识别单元包括多个比较电路，每个比较电路被配置以比较多个触摸结果信号中的一个和预设的参考信号，当判断触摸结果信号大于预设的参考信号时，则识别有触摸发生。
  7. 如权利要求3所述的显示装置，其中，所述显示单元包括显示区域和周边区域，所述参考单元包括一个参考电极，所述参考电极设置于所述周边区域。
  8. 如权利要求3所述的显示装置，其中，所述显示单元包括显示区域和周边区域，所述参考单元包括多个参考电极，所述多个参考电极位于触摸检测单元的显示区域内，所述每条参考电极对应至少一条触摸感应电极。
  9. 如权利要求7或8所述的显示装置，进一步包括：屏蔽层，所述屏蔽层用于屏蔽外部触摸对参考电压信号的干扰，所述屏蔽层设置于所述参考电极之上，且与所述参考电极相互绝缘。
  10. 如权利要求1所述的显示装置，其中，数据刷新扫描频率与触摸检测扫描频率相同。
  11. 如权利要求1所述的显示装置，其中，触摸检测扫描频率是数据刷新扫描频率的两倍。
  12. 一种集成触摸功能的显示装置的驱动方法，所述显示装置包括显示单元和触摸检测电路，该方法包括：同时驱动显示单元的数据刷新以及触摸检测电路的触摸检测，其中，同一时间段，数据刷新区域和触摸检测区域不重合。
  13. 如权利要求12所述的驱动方法，该方法还包括：
    经由参考电极提供参考电压信号；
    根据参考电压信号，经由去噪处理单元处理多个触摸检测信号以生成去除数据驱动干扰的多个触摸结果信号。
  14. 如权利要求13所述的驱动方法，还包括：经由触摸识别单元根据触摸结果信号来判断是否有触摸发生。
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Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104834406B (zh) 2015-05-29 2018-09-18 京东方科技集团股份有限公司 一种集成触摸功能的显示装置及其驱动方法
US10061437B2 (en) * 2015-09-30 2018-08-28 Synaptics Incorporated Active canceling of display noise in simultaneous display and touch sensing using an impulse response
CN105869554B (zh) 2016-06-17 2019-01-22 京东方科技集团股份有限公司 检测电路、结构特征的识别方法及显示基板
TWI626573B (zh) * 2017-03-13 2018-06-11 友達光電股份有限公司 顯示裝置
CN107561761B (zh) * 2017-09-20 2020-09-01 厦门天马微电子有限公司 一种显示面板及其驱动方法、显示装置
KR102439017B1 (ko) * 2017-11-30 2022-09-01 엘지디스플레이 주식회사 디스플레이 장치 및 그의 인터페이스 방법
US11205363B2 (en) * 2019-10-18 2021-12-21 Apple Inc. Electronic display cross-talk compensation systems and methods
US11635853B2 (en) 2020-05-27 2023-04-25 Novatek Microelectronics Corp. Touch sensing method with noise reduction
US11650692B2 (en) 2020-05-27 2023-05-16 Novatek Microelectronics Corp. Touch sensing method and electronic device
WO2022061747A1 (zh) * 2020-09-25 2022-03-31 京东方科技集团股份有限公司 触控方法、触控电路和触控装置
US11640802B2 (en) * 2021-05-20 2023-05-02 E Ink Holdings Inc. Display device and display device driving method
TWI826183B (zh) * 2022-12-14 2023-12-11 友達光電股份有限公司 觸控顯示器及感測方法

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101178524A (zh) * 2006-11-09 2008-05-14 三星电子株式会社 具有集成触摸面板的lcd
CN101673163A (zh) * 2008-09-08 2010-03-17 统宝光电股份有限公司 用于电容式触控面板的感测电路
CN102239461A (zh) * 2008-09-26 2011-11-09 苹果公司 用于触摸面板的差分感测
CN103314345A (zh) * 2010-12-28 2013-09-18 夏普株式会社 触摸板系统和电子设备
US20130257786A1 (en) * 2012-03-30 2013-10-03 Sharp Kabushiki Kaisha Projected capacitance touch panel with reference and guard electrode
CN103353816A (zh) * 2013-06-14 2013-10-16 旭曜科技股份有限公司 一种内嵌式多点触控面板系统及其驱动方法
US20140015796A1 (en) * 2007-08-26 2014-01-16 Harald Philipp Capacitive Sensor with Reduced Noise
CN104281352A (zh) * 2014-10-13 2015-01-14 京东方科技集团股份有限公司 一种内嵌式触摸屏及显示装置
CN104375731A (zh) * 2014-11-26 2015-02-25 深圳市华星光电技术有限公司 内嵌式触摸屏及其驱动方法
CN104407760A (zh) * 2014-10-13 2015-03-11 京东方科技集团股份有限公司 一种内嵌式触摸屏及显示装置
CN104699307A (zh) * 2015-03-31 2015-06-10 京东方科技集团股份有限公司 一种触控显示驱动方法、驱动装置及触控显示器
CN104834406A (zh) * 2015-05-29 2015-08-12 京东方科技集团股份有限公司 一种集成触摸功能的显示装置及其驱动方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108563366B (zh) * 2006-06-09 2022-01-25 苹果公司 触摸屏液晶显示器
CN101634917B (zh) * 2008-07-21 2013-04-24 智点科技（深圳）有限公司 一种触控式平板显示器
JP2010061405A (ja) * 2008-09-03 2010-03-18 Rohm Co Ltd 静電容量センサ、その検出回路、入力装置および容量センサの制御方法
US8614690B2 (en) * 2008-09-26 2013-12-24 Apple Inc. Touch sensor panel using dummy ground conductors
WO2010107961A2 (en) * 2009-03-18 2010-09-23 Synaptics Incorporated Integrated display and touch sensor
US8421890B2 (en) 2010-01-15 2013-04-16 Picofield Technologies, Inc. Electronic imager using an impedance sensor grid array and method of making
KR101773612B1 (ko) * 2011-01-13 2017-08-31 삼성전자주식회사 터치 영역 확인 장치 및 방법
KR101503103B1 (ko) 2011-03-25 2015-03-17 엘지디스플레이 주식회사 터치 센서 내장형 표시장치와 그 구동 방법
WO2012132495A1 (ja) * 2011-03-30 2012-10-04 本田技研工業株式会社 操作装置
TWI464642B (zh) 2012-04-27 2014-12-11 Orise Technology Co Ltd 內嵌式多點觸控液晶顯示面板系統
CN103455201B (zh) * 2013-08-27 2017-03-29 北京京东方光电科技有限公司 一种触控显示装置及其驱动方法
US9965110B2 (en) * 2014-11-26 2018-05-08 Shenzhen China Star Optoelectronics Technology Co., Ltd. In-cell touch screen and driving method thereof
US9817506B2 (en) * 2015-03-31 2017-11-14 Synaptics Incorporated Sensor array configurations for differential readout

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101178524A (zh) * 2006-11-09 2008-05-14 三星电子株式会社 具有集成触摸面板的lcd
US20140015796A1 (en) * 2007-08-26 2014-01-16 Harald Philipp Capacitive Sensor with Reduced Noise
CN101673163A (zh) * 2008-09-08 2010-03-17 统宝光电股份有限公司 用于电容式触控面板的感测电路
CN102239461A (zh) * 2008-09-26 2011-11-09 苹果公司 用于触摸面板的差分感测
CN103314345A (zh) * 2010-12-28 2013-09-18 夏普株式会社 触摸板系统和电子设备
US20130257786A1 (en) * 2012-03-30 2013-10-03 Sharp Kabushiki Kaisha Projected capacitance touch panel with reference and guard electrode
CN103353816A (zh) * 2013-06-14 2013-10-16 旭曜科技股份有限公司 一种内嵌式多点触控面板系统及其驱动方法
CN104281352A (zh) * 2014-10-13 2015-01-14 京东方科技集团股份有限公司 一种内嵌式触摸屏及显示装置
CN104407760A (zh) * 2014-10-13 2015-03-11 京东方科技集团股份有限公司 一种内嵌式触摸屏及显示装置
CN104375731A (zh) * 2014-11-26 2015-02-25 深圳市华星光电技术有限公司 内嵌式触摸屏及其驱动方法
CN104699307A (zh) * 2015-03-31 2015-06-10 京东方科技集团股份有限公司 一种触控显示驱动方法、驱动装置及触控显示器
CN104834406A (zh) * 2015-05-29 2015-08-12 京东方科技集团股份有限公司 一种集成触摸功能的显示装置及其驱动方法

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