WO2016029600A1 - 一种触摸显示驱动方法、触摸显示驱动装置及触摸显示屏 - Google Patents

一种触摸显示驱动方法、触摸显示驱动装置及触摸显示屏 Download PDF

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Publication number
WO2016029600A1
WO2016029600A1 PCT/CN2014/094075 CN2014094075W WO2016029600A1 WO 2016029600 A1 WO2016029600 A1 WO 2016029600A1 CN 2014094075 W CN2014094075 W CN 2014094075W WO 2016029600 A1 WO2016029600 A1 WO 2016029600A1
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Prior art keywords
touch
display
scan
area
scanning
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PCT/CN2014/094075
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English (en)
French (fr)
Inventor
赵家阳
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京东方科技集团股份有限公司
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Priority to US14/770,376 priority Critical patent/US20160370940A1/en
Publication of WO2016029600A1 publication Critical patent/WO2016029600A1/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
    • G06F3/0416—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
    • G06F3/0412—Digitisers structurally integrated in a display

Definitions

  • the present invention relates to the field of touch display technologies, and in particular, to a touch display driving method, a touch display driving device, and a touch display screen.
  • the in-cell touch display screen is formed by integrating the touch screen and the display screen, and the touch screen is embedded in the display screen.
  • the electrodes of the touch screen include a plurality of laterally disposed touch driving lines Tx and a plurality of longitudinally arranged touch sensing lines Rx.
  • the touch drive line Tx is progressively scanned, and when scanning each touch drive line Tx, the signals on all the touch sensing lines Rx are read, and by scanning the touch sensing lines Rx column by column, The intersection of each touch drive line and each touch sensing line can be scanned so that the position of the touch point during scanning can be detected.
  • the touch unit is arranged in an array like the pixel unit, but the size is different from the pixel unit.
  • the plurality of pixel units constitute one touch unit, and each row of touch units corresponds to one touch driving line Tx, and each column touch unit corresponds to one touch sensing line Rx.
  • FIG. 1 is a schematic diagram of a correspondence relationship between a touch driving line Tx and a gate line G, and each touch driving line Tx may correspond to M gate lines G, where M is a natural number greater than 1.
  • the display scanning is a progressive scanning of the display scanning line (ie, the gate line G)
  • the touch scanning is a progressive scanning of the touch driving line Tx
  • the display scanning phase and the touch scanning phase are separated.
  • FIG. 2 is a timing chart in which the conventional display scanning and the touch scanning are alternately performed
  • FIGS. 3a to 3e are schematic diagrams in which the conventional display scanning and the touch scanning are alternately performed.
  • each horizontal line represents a gate line G
  • one display scan line corresponds to one gate line G
  • one touch drive line Tx corresponds to a plurality of gate lines G
  • the display scan is performed on the display scan line line by line.
  • Scanning, touch scanning is a progressive scanning of the touch driving line Tx, so the area scanned by one touch scanning is much larger than the area scanned by one display scanning, and the speed of the touch scanning is faster than the speed of the display scanning, which is This causes the display area (display Y) and the touch scan area (Tx X) to overlap at some point.
  • the display area (display Y) is displayed. It is included in the touch scan area (Tx X).
  • an additional noise environment scan is required for touch scanning, so at the moment when there is overlap, the output stability of the array substrate gate driver (GOA) is lower than that of other regions, and thus there is overlap in this. Touch noise is generated at all times.
  • the main object of the present invention is to provide a touch display driving method for reducing touch noise, a touch display driving device, and a touch display screen, so as to prevent the touch scanning area and the display scanning area from overlapping at a certain time. Thereby avoiding the generation of touch noise.
  • an embodiment of the present invention provides a touch display driving method, including: performing display scanning on a display scan area including a plurality of display scan lines during a display scan period; and current touch drive lines in a touch scan period
  • the touch scan area overlapping with the display scan area is skipped, and the touch scan corresponding to any touch drive line after the current touch drive line is skipped.
  • the area performs a touch scan; and in the next touch scan period, returns a touch scan to the touch scan area that overlaps with the display scan area; wherein the touch scan area is larger than the display scan area, and the scan speed of the touch scan is greater than the display scan Scan speed, and the two are driven alternately.
  • the touch scanning period further includes: determining whether there is an overlap between the touch scan area and the display scan area.
  • the determining includes: determining whether the last display scan line in the display scan area is in the touch scan area corresponding to the current touch drive line, and if yes, determining that the touch scan area overlaps with the display scan area; otherwise, determining touch scan There is no overlap between the area and the display scan area.
  • any one of the touch drive lines after the current touch drive line is the first touch drive line after the current touch drive line.
  • the touch drive line is a common electrode disposed laterally in the touch screen.
  • the method is implemented by controlling a touch scan signal and a display scan signal, the touch scan signal and the display scan signal being respectively emitted by a touch drive circuit and a gate drive circuit.
  • the control of the touch scan signal and the display scan signal is a software upgrade of the touch drive circuit and the gate drive circuit that respectively emit the touch scan signal and the display scan signal.
  • the embodiment of the present invention further provides a touch display driving device for implementing the touch display driving method, the device comprising: a display scan signal generating device, configured to generate a display scan signal, and display a scan period, the display scan signal controls display scan of a display scan area including a plurality of display scan lines; and touch scan signal generating means for generating a touch scan signal, when the current touch drive line corresponds to the touch scan line
  • the touch scan signal controls such that a touch scan area overlapping with the display scan area is skipped, corresponding to any touch drive line after the current touch drive line
  • Touch scan area performs touch scan, and in the next touch scan period, returns to touch scan of the touch scan area overlapping with the display scan area, wherein the touch scan area is larger than the display scan area, and the scan speed of the touch scan is greater than the display
  • the scanning speed of the scan, and the two are driven alternately.
  • the touch scan signal generating device is a touch driving circuit
  • the display scan signal generating device is a gate driving circuit
  • the embodiment of the invention further provides a touch display screen, which comprises the touch display driving device.
  • the touch display driving method, the touch display driving device and the touch display screen for reducing touch noise provided by the embodiment of the present invention control the touch scan signal to skip the display scan area during the touch scan period.
  • the touch scan area corresponding to the current touch drive line of the stack performs touch scan on the touch scan area corresponding to any touch drive line after the current touch drive line, and in the next touch scan period, the return pair overlaps with the display scan area.
  • Touch scanning area for touch scanning, and display scanning is performed normally, thereby effectively avoiding the touch scanning area and the display scanning area overlapping at a certain time, thereby completely solving the problem that the touch scanning area and the display scanning area are present at a certain moment.
  • the problem of touch noise is generated by stacking, and the touch sensitivity can be greatly improved.
  • FIG. 1 is a schematic diagram of a correspondence relationship between a touch driving line Tx and a gate line.
  • FIG. 2 is a timing chart in which conventional display scanning and touch scanning are alternately performed.
  • 3a to 3e are schematic diagrams showing the conventional display scan and touch scan alternately.
  • FIG. 4 is a timing diagram in which display scanning and touch scanning are alternately performed in accordance with an embodiment of the present invention.
  • 5a through 5e are schematic diagrams showing alternate scanning and touch scanning in accordance with an embodiment of the present invention.
  • the touch display driving method is provided for the touch display area and the display scan area to overlap at a certain time to generate a touch noise.
  • the method includes:
  • Display scanning of a display scan area including a plurality of display scan lines during a display scan period
  • the touch scan area is larger than the display scan area, and the scan speed of the touch scan is greater than the scan speed of the display scan, and the two are alternately driven.
  • the method further includes a determining step in the touch scanning period, that is, determining whether the touch scanning area overlaps with the display scanning area, and the specific determining process is as follows: determining whether the last display scanning line in the display scanning area is The touch scan area corresponding to the current touch drive line, if yes, determines that the touch scan area overlaps with the display scan area; otherwise, it is determined that the touch scan area does not overlap with the display scan area.
  • any touch drive line after the current touch drive line is generally preferably the first touch drive line after the current touch drive line.
  • the touch driving line is generally a common electrode disposed laterally in the touch screen.
  • the method is implemented by controlling the touch scan signal and the display scan signal, and the touch scan signal and the display scan signal are respectively sent by the touch drive circuit and the gate drive circuit, and the touch scan signal and the display scan signal are Controlling is to perform software upgrade on the touch driving circuit and the gate driving circuit that respectively emit the touch scanning signal and the display scanning signal, and the hardware does not need to be modified, so that the touch scanning area corresponding to the touch driving line overlaps with the display scanning area.
  • the touch scan skips the touch scan area overlapping the display scan area, and scans the touch scan area corresponding to any touch drive line after the touch drive line; in the next touch scan period, the touch scan returns overlap with the display scan area. Touch the scan area to scan.
  • the display scan is normally performed.
  • the embodiment of the present invention further provides a touch display driving device, which is used to implement the touch display driving method, and the device includes: a display scanning signal generating device, configured to: Generating a display scan signal for controlling display scanning of a display scan area including a plurality of display scan lines during a display scan period; and touching scan signal generating means for generating a touch scan signal during the touch scan period
  • the touch scan signal is controlled such that a touch scan area overlapping the display scan area is skipped, and the current touch drive line is Touch scanning area corresponding to any one of the touch driving lines is subjected to touch scanning, and in the next touch scanning period, returning to performing touch scanning on the touch scanning area overlapping with the display scanning area, wherein the touch scanning area is larger than the display scanning area, and Touch scanning has a high scanning speed Scanning speed of the display, and two alternately driven.
  • the touch scan signal generating means is a touch driving circuit
  • the display scanning signal generating means is a gate driving circuit
  • an embodiment of the present invention further provides a touch display screen, where the touch display screen includes the touch display driving device.
  • the touch display driving method provided by the embodiment of the present invention is further described in detail below with reference to FIG. 5a to FIG. 5e.
  • the touch driving line Tx covers M gate lines, and M is a natural number greater than 1, according to the timing shown in FIG. 4, it is assumed that scanning m gate lines are displayed between two touch driving scans, m is a natural number greater than 1, assuming that the number of noise scans per touch scan frame is j, the number of touch drive lines Tx is n, and the touch scan is scanning the touch drive line Tx X Touch scan area, in which the last line of the scan is Y, Y and j are natural numbers, then the touch scan and display scan overlap areas can be described as follows:
  • the frequency of the display scan of the display panel is 60 Hz
  • the frequency of the touch scan of the display panel is 120 Hz, so that one display scan frame corresponds to two touch scan frames.
  • the display scan line including the display scan in the current touch scan area necessarily appears, that is,
  • the line Tx ie, Tx X and Tx X+1
  • the touch scan area corresponding to the current touch drive line Tx X overlaps with the display scan area corresponding to the last display scan line Y1 of the display scan;
  • the touch driving line Tx ie, Tx X and Tx X+1
  • the last display scanning line Y2 of the display scan is included, that is, the current touch driving
  • the touch scan area corresponding to the line Tx X overlaps with the display scan area corresponding to the display scan line Y2 of the last line of the display scan.
  • the display scanning is normally performed, and the touch scanning skips the touch scanning area corresponding to the touch driving line Tx X overlapping with the display scanning area, as shown in FIG. 5d, scanning
  • the touch scan area corresponding to any touch drive line Tx X+i is touched by the touch drive line Tx X, and is returned to the touch scan area corresponding to the touch drive line Tx X in the next touch scan period for scanning, as shown in FIG. 5e.
  • the touch scanning area and the display scanning area are effectively prevented from overlapping at a certain time, thereby completely solving the problem that the touch scanning area and the display scanning area overlap at a certain moment to generate touch noise, thereby further improving the problem. Touch sensitivity.
  • the touch scan when there is overlap between the touch scan area and the display scan area, the touch scan skips the touch scan area corresponding to the touch drive line Tx X that overlaps with the display scan area, and scans the touch drive line Tx X after any touch drive
  • the touch scan area corresponding to the line Tx X+i preferably, the touch drive line Tx X+i after the touch drive line Tx X is the first touch drive line Tx X+1 after the touch drive line Tx X, but Not limited to this.
  • the touch scan and the display scan are still alternated, and the touch scan area and the display scan area may still exist during the subsequent scan.
  • Stack if the touch scan area overlaps with the display scan area again, it is assumed that the touch scan area corresponding to the touch drive line Tx X+k overlaps with the display scan area corresponding to the last display scan line Y+k of the display scan If k is a natural number, the touch scan driving scheme provided by the embodiment of the present invention is still used, and the display scan is normally performed, and the touch scan skips the touch scan area corresponding to the touch drive line Tx X+k where the display scan area overlaps.
  • the display scan lines are respectively G64 and G96, and the last display scan line included in the current touch scan area corresponding to the touch drive line Tx1 is G64, and the touch scan area corresponding to the current touch drive line Tx1 and the displayed scan
  • the last display shows that the display scan area corresponding to the scan line G64 overlaps; the last display scan line included in the current touch scan area corresponding to the touch drive line Tx2 is G96, and the current touch drive line Tx2 corresponds to The touch scan area overlaps with the display scan area corresponding to the last display scan line G96 of
  • the touch scan driving method For the case where the touch scan area corresponding to the current touch drive line Tx1 overlaps with the display scan area corresponding to the last display scan line G64 of the display scan, the touch scan driving method according to the embodiment of the present invention, the touch scan jump The touch scan area corresponding to the touch drive line Tx1 that overlaps with the display scan area, and the touch scan area corresponding to any one of the touch drive lines Tx 1+i after the touch drive line Tx1 is scanned, preferably, for example, the touch drive line Tx2 Corresponding touch scan area, and returning to the touch scan area corresponding to the touch drive line Tx1 for scanning in the next touch scan period;
  • the touch scan driving method For the case where the touch scan area corresponding to the current touch drive line Tx2 overlaps with the display scan area corresponding to the last display scan line G96 of the display scan, the touch scan driving method according to the embodiment of the present invention, the touch scan jump The touch scan area corresponding to the touch drive line Tx2 that overlaps with the display scan area, and the touch scan area corresponding to any one of the touch drive lines Tx 2+i after scanning the touch drive line Tx2, preferably, for example, the touch drive line Tx3 Corresponding touch scan area, and returning to the touch scan area corresponding to the touch drive line Tx2 for scanning in the next touch scan period;
  • the last display scan line included in the touch scan area is G1280, and the touch scan area corresponding to the current touch drive line Tx19 overlaps with the display scan area corresponding to the last display scan line G1280 of the display scan;
  • the touch scan driving method For the case where the touch scan area corresponding to the current touch drive line Tx19 overlaps with the display scan area corresponding to the last display scan line G1280 of the display scan, the touch scan driving method according to the embodiment of the present invention, the touch scan jump The touch scan area corresponding to the touch drive line Tx19 having the overlap with the display scan area is scanned, and the touch scan area corresponding to any one of the touch drive lines Tx19+i after the touch drive line Tx19 is scanned, preferably, for example, the touch drive line Tx20 The corresponding touch scan area is returned to the touch scan area corresponding to the touch drive line Tx19 for scanning in the next touch scan period.

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Abstract

本发明公开了一种用以降低触控噪声的触摸显示驱动方法、触摸显示驱动装置及触摸显示屏。该触摸显示驱动方法包括：在显示扫描时段，对包括多条显示扫描线的显示扫描区域进行显示扫描；在触摸扫描时段，当当前触摸驱动线所对应的触摸扫描区域与显示扫描区域存在交叠时，跳过与显示扫描区域存在交叠的触摸扫描区域，对当前触摸驱动线后任一条触摸驱动线所对应的触摸扫描区域进行触摸扫描；以及在下一个触摸扫描时段，返回对与显示扫描区域存在交叠的触摸扫描区域进行触摸扫描。本发明有效地避免了触摸扫描区域与显示扫描区域在某一时刻交叠，彻底避免了触控噪声的产生。

Description

一种触摸显示驱动方法、触摸显示驱动装置及触摸显示屏 技术领域
本发明涉及触摸显示技术领域，尤其涉及一种触摸显示驱动方法、触摸显示驱动装置及触摸显示屏。
背景技术
内嵌式触摸显示屏由触摸屏和显示屏集成制作形成，且触摸屏内嵌于显示屏中，触摸屏的电极包括多条横向设置的触摸驱动线Tx和多条纵向设置的触摸感应线Rx。在触摸点定位检测过程中，对触摸驱动线Tx进行逐行扫描，在扫描每一触摸驱动线Tx时，读取所有触摸感应线Rx上的信号，通过对触摸感应线Rx逐列扫描，就可以把每条触摸驱动线和每条触摸感应线的交叉点都扫描到，从而可以检测出扫描过程中触摸点的位置。
触摸单元与像素单元一样呈阵列排布，但大小与像素单元不同，一般多个像素单元构成一个触摸单元，每一行触摸单元对应一条触摸驱动线Tx，每一列触摸单元对应一条触摸感应线Rx。如图1所示，图1是触摸驱动线Tx与栅线G之间的对应关系的示意图，每条触摸驱动线Tx可对应M条栅线G，其中M为大于1的自然数。
对于显示扫描和触摸扫描而言，显示扫描是对显示扫描线(即栅线G)进行逐行扫描，触摸扫描是对触摸驱动线Tx进行逐行扫描，且显示扫描阶段和触摸扫描阶段是分开的，二者交替进行。如图2、图3a至图3e所示，图2是现有的显示扫描和触摸扫描交替进行的时序图，图3a至图3e是现有的显示扫描和触摸扫描交替进行的示意图。图3a至图3e中，每条横线表示一条栅线G，一条显示扫描线对应一条栅线G，一条触摸驱动线Tx对应多条栅线G，由于显示扫描是对显示扫描线进行逐行扫描，触摸扫描是对触摸驱动线Tx进行逐行扫描，所以进行一次触摸扫描所扫描的区域远大于进行一次显示扫描所扫描的区域，进而触摸扫描的速度要快于显示扫描的速度，这就导致了某个时刻显示扫描区域(display Y)和触摸扫描区域(Tx X)会存在交叠，如图3d所示，显示扫描区域(display Y) 包含于触摸扫描区域(Tx X)之中。另外触摸扫描时需要进行额外的噪声环境扫描，因此在存在交叠的这个时刻，阵列基板栅极驱动器(GOA)的输出稳定性较其他区域的输出稳定性要低，进而在存在交叠的这个时刻就会产生触控噪声。
发明内容
有鉴于此，本发明的主要目的在于提供一种用于降低触控噪声的触摸显示驱动方法、触摸显示驱动装置及触摸显示屏，以避免触摸扫描区域与显示扫描区域在某一时刻交叠，从而避免触控噪声的产生。
针对上述技术问题，本发明实施例提供了一种触摸显示驱动方法，包括：在显示扫描时段，对包括多条显示扫描线的显示扫描区域进行显示扫描；在触摸扫描时段，当当前触摸驱动线所对应的触摸扫描区域与所述显示扫描区域存在交叠时，跳过与所述显示扫描区域存在交叠的触摸扫描区域，对所述当前触摸驱动线后任一条触摸驱动线所对应的触摸扫描区域进行触摸扫描；以及在下一个触摸扫描时段，返回对与所述显示扫描区域存在交叠的触摸扫描区域进行触摸扫描；其中，触摸扫描区域大于显示扫描区域，并且触摸扫描的扫描速度大于显示扫描的扫描速度，且二者交替地驱动。
优选地，在触摸扫描时段还包括：判断触摸扫描区域与显示扫描区域是否存在交叠。所述判断包括：判断显示扫描区域中的最后一条显示扫描线是否处于当前触摸驱动线所对应的触摸扫描区域，如果是，则确定触摸扫描区域与显示扫描区域存在交叠；否则，确定触摸扫描区域与显示扫描区域不存在交叠。
优选地，所述当前触摸驱动线后任一条触摸驱动线是所述当前触摸驱动线后的第一条触摸驱动线。
优选地，触摸驱动线是触摸屏中横向设置的公共电极。
优选地，该方法是通过对触摸扫描信号和显示扫描信号进行控制实现的，所述触摸扫描信号和所述显示扫描信号分别由触摸驱动电路和栅极驱动电路发出。所述对触摸扫描信号和显示扫描信号进行控制是对分别发出触摸扫描信号和显示扫描信号的触摸驱动电路和栅极驱动电路进行软件升级。
本发明实施例还提供了一种触摸显示驱动装置，用以实现所述的触摸显示驱动方法，该装置包括：显示扫描信号发生装置，用于产生显示扫描信号，在显示 扫描时段，所述显示扫描信号控制对包括多条显示扫描线的显示扫描区域进行显示扫描；以及触摸扫描信号发生装置，用于产生触摸扫描信号，在触摸扫描时段，当当前触摸驱动线所对应的触摸扫描区域与所述显示扫描区域存在交叠时，所述触摸扫描信号控制使得跳过与显示扫描区域存在交叠的触摸扫描区域，对所述当前触摸驱动线后任一条触摸驱动线所对应的触摸扫描区域进行触摸扫描，且在下一个触摸扫描时段，返回对与显示扫描区域存在交叠的触摸扫描区域进行触摸扫描，其中，触摸扫描区域大于显示扫描区域，并且触摸扫描的扫描速度大于显示扫描的扫描速度，且二者交替地驱动。
优选地，所述触摸扫描信号发生装置是触摸驱动电路，所述显示扫描信号发生装置是栅极驱动电路。
本发明实施例还提供了一种触摸显示屏，该触摸显示屏包含有所述的触摸显示驱动装置。
从上述技术方案可以看出，本发明具有以下有益效果：
本发明实施例提供的这种用以降低触控噪声的触摸显示驱动方法、触摸显示驱动装置及触摸显示屏，通过对触摸扫描信号进行控制，在触摸扫描时段，跳过与显示扫描区域存在交叠的当前触摸驱动线所对应的触摸扫描区域，对当前触摸驱动线后任一条触摸驱动线所对应的触摸扫描区域进行触摸扫描，并且在下一个触摸扫描时段，返回对与显示扫描区域存在交叠的触摸扫描区域进行触摸扫描，而显示扫描正常进行，因而有效地避免了触摸扫描区域与显示扫描区域在某一时刻交叠，从而彻底解决了因触摸扫描区域与显示扫描区域在某一时刻存在交叠而产生触控噪声的问题，进而还能够大大提升触控灵敏度。
附图说明
图1是触摸驱动线Tx与栅线之间的对应关系的示意图。
图2是现有的显示扫描和触摸扫描交替进行的时序图。
图3a至图3e是现有的显示扫描和触摸扫描交替进行的示意图。
图4是依照本发明实施例的显示扫描和触摸扫描交替进行的时序图。
图5a至图5e是依照本发明实施例的显示扫描和触摸扫描交替进行的示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚明白，以下结合具体实施例，并参照附图，对本发明进一步详细说明。
针对触摸扫描区域与显示扫描区域在某一时刻交叠而产生触控噪声的问题，本发明实施例提供了一种触摸显示驱动方法，该方法包括：
在显示扫描时段，对包括多条显示扫描线的显示扫描区域进行显示扫描；
在触摸扫描时段，当当前触摸驱动线所对应的触摸扫描区域与所述显示扫描区域存在交叠时，跳过与所述显示扫描区域存在交叠的触摸扫描区域，对所述当前触摸驱动线后任一条触摸驱动线所对应的触摸扫描区域进行触摸扫描；以及
在下一个触摸扫描时段，返回对与所述显示扫描区域存在交叠的触摸扫描区域进行触摸扫描；
其中，触摸扫描区域大于显示扫描区域，并且触摸扫描的扫描速度大于显示扫描的扫描速度，且二者交替地驱动。
在本实施例中，该方法在触摸扫描时段还包括一个判断步骤，即判断触摸扫描区域与显示扫描区域是否存在交叠，其具体判断过程如下：判断显示扫描区域中的最后一条显示扫描线是否处于当前触摸驱动线所对应的触摸扫描区域，如果是，则确定触摸扫描区域与显示扫描区域存在交叠；否则，确定触摸扫描区域与显示扫描区域不存在交叠。
在本实施例中，当前触摸驱动线后任一条触摸驱动线一般优选地是当前触摸驱动线后的第一条触摸驱动线。
在本实施例中，触摸驱动线一般是是触摸屏中横向设置的公共电极。
在本实施例中，该方法是通过对触摸扫描信号和显示扫描信号进行控制实现的，触摸扫描信号和显示扫描信号分别由触摸驱动电路和栅极驱动电路发出，对触摸扫描信号和显示扫描信号进行控制是对分别发出触摸扫描信号和显示扫描信号的触摸驱动电路和栅极驱动电路进行软件升级，硬件上无需改动，使触摸驱动线所对应的触摸扫描区域与显示扫描区域存在交叠时，触摸扫描跳过与显示扫描区域存在交叠的触摸扫描区域，扫描该触摸驱动线后任一条触摸驱动线所对应的触摸扫描区域；在下一个触摸扫描时段，触摸扫描返回与显示扫描区域存在交叠的触摸扫描区域进行扫描。而显示扫描正常进行。
基于上述本发明实施例提供的触摸显示驱动方法，本发明实施例还提供了一种触摸显示驱动装置，用以实现所述的触摸显示驱动方法，该装置包括：显示扫描信号发生装置，用于产生显示扫描信号，在显示扫描时段，所述显示扫描信号控制对包括多条显示扫描线的显示扫描区域进行显示扫描；以及触摸扫描信号发生装置，用于产生触摸扫描信号，在触摸扫描时段，当当前触摸驱动线所对应的触摸扫描区域与所述显示扫描区域存在交叠时，所述触摸扫描信号控制使得跳过与显示扫描区域存在交叠的触摸扫描区域，对所述当前触摸驱动线后任一条触摸驱动线所对应的触摸扫描区域进行触摸扫描，且在下一个触摸扫描时段，返回对与显示扫描区域存在交叠的触摸扫描区域进行触摸扫描，其中，触摸扫描区域大于显示扫描区域，并且触摸扫描的扫描速度大于显示扫描的扫描速度，且二者交替地驱动。
在本实施例中，触摸扫描信号发生装置是触摸驱动电路，显示扫描信号发生装置是栅极驱动电路。
基于上述本发明实施例提供的触摸显示驱动方法及触摸显示驱动装置，本发明实施例还提供了一种触摸显示屏，该触摸显示屏包含有所述的触摸显示驱动装置。
以下参照图5a至图5e对本发明实施例提供的触摸显示驱动方法进一步详细说明。如图5a至图5e所示，假设触摸驱动线Tx覆盖M条栅线，M为大于1的自然数，根据图4所示的时序，假设两次触摸驱动扫描之间显示扫描m条栅线，m为大于1的自然数，假设每个触摸扫描帧(touch frame)的噪声扫描(noise scan)数目是j，触摸驱动线Tx的条数为n，触摸扫描正在扫描的触摸驱动线Tx X所对应的触摸扫描区域，在该区域显示扫描的最后一行栅线为Y，Y和j均为自然数，则触摸扫描与显示扫描交叠区域可描述如下：
假设对显示面板进行显示扫描的频率为60Hz，而对显示面板进行触摸扫描的频率为120Hz，因此在一个显示扫描帧对应于两个触摸扫描帧。如图5c所示，由于触摸扫描速度快于显示扫描速度，则必然出现当前触摸扫描区域内包含经显示扫描的显示扫描线的情形，即：
在第一个触摸帧扫描时，经显示扫描的最后一条显示扫描线Y1可描述为触摸驱动线(Tx X)相关函数Y1＝m(X+j)，当显示扫描线Y1处于2条触摸驱动线Tx(即Tx X和Tx X+1)之间时，出现当前触摸驱动线Tx X对应的触摸扫描区域内 包含经显示扫描的最后一条显示扫描线Y1的情形，即当前触摸驱动线Tx X对应的触摸扫描区域与经显示扫描的最后一条显示扫描线Y1对应的显示扫描区域存在交叠；
在第二个触摸帧扫描时，经显示扫描的最后一条显示扫描线Y2可描述为触摸驱动线(Tx X)相关函数Y2＝m(X+n+2j)，当显示扫描线Y2处于2条触摸驱动线Tx(即Tx X和Tx X+1)之间时，出现当前触摸驱动线Tx X所对应的触摸扫描区域内包含经显示扫描的最后一条显示扫描线Y2的情形，即当前触摸驱动线Tx X所对应的触摸扫描区域与经显示扫描的最后一条的显示扫描线Y2所对应的显示扫描区域存在交叠。
在上述第一个触摸帧和第二个触摸帧期间当前触摸驱动线所对应的触摸扫描区域与经显示扫描的最后一条显示扫描线所对应的显示扫描区域存在交叠时，根据本发明实施例提供的用以降低触控噪声的触摸显示驱动方法，显示扫描正常进行，触摸扫描跳过与显示扫描区域存在交叠的触摸驱动线Tx X所对应的触摸扫描区域，如图5d所示，扫描该触摸驱动线Tx X后任一条触摸驱动线Tx X+i所对应的触摸扫描区域，并在下一个触摸扫描时段返回该触摸驱动线Tx X对应的触摸扫描区域进行扫描，如图5e所示，因而有效地避免了触摸扫描区域与显示扫描区域在某一时刻交叠，从而彻底解决了因触摸扫描区域与显示扫描区域在某一时刻存在交叠而产生触控噪声的问题，进而还大大提升了触控灵敏度。
其中，在触摸扫描区域与显示扫描区域存在交叠时，触摸扫描跳过与显示扫描区域存在交叠的触摸驱动线Tx X所对应的触摸扫描区域，扫描该触摸驱动线Tx X后任一条触摸驱动线Tx X+i所对应的触摸扫描区域，优选地，该触摸驱动线Tx X后任一条触摸驱动线Tx X+i是该触摸驱动线Tx X后第一条触摸驱动线Tx X+1，但不限于此。
进一步地，触摸扫描在下一个触摸扫描时段返回该触摸驱动线Tx X对应的触摸扫描区域进行扫描以后，触摸扫描与显示扫描仍交替进行，后续扫描过程中触摸扫描区域与显示扫描区域仍可能存在交叠，如果触摸扫描区域与显示扫描区域再次交叠，假设触摸驱动线Tx X+k所对应的触摸扫描区域与经显示扫描的最后一条显示扫描线Y+k所对应的显示扫描区域存在交叠，k为自然数，则仍然采用本发明实施例提供的触摸扫描驱动方案，显示扫描正常进行，触摸扫描跳过与显示扫描区存在交叠的触摸驱动线Tx X+k所对应的触摸扫描区域，扫描该触摸驱动线 Tx X+k后任一条触摸驱动线Tx X+k+i所对应的触摸扫描区域，并在下一个触摸扫描时段返回该触摸驱动线Tx X+k对应的触摸扫描区域进行扫描，因而有效地避免了触摸扫描区域与显示扫描区域在某一时刻交叠，从而彻底解决了因触摸扫描区域与显示扫描区域在某一时刻交叠而产生触控噪声的问题，进而还大大提升了触控灵敏度。
以下以5英寸，HD720的分辨率的显示面板为例对本发明实施例提供的触摸扫描驱动方法进行详细说明，在本实施例中假设显示面板中总共有1280条栅线G，每一条触摸驱动线Tx覆盖M＝67条栅线G，那么最后一条触摸驱动线Tx19覆盖74条栅线，m＝32，j＝1，n＝19则：
在第一个触摸帧内，触摸驱动线Tx1和触摸驱动线Tx2出现上述交叠现象，Y1＝32*(X+1)，67*(X-1)＜32*(X+1)＜＝67*X，则得到：35*X＜99，且35*X＞＝32，当X＝1&2时出现交叠现象，Y1＝64&96；即在当前触摸扫描区域内包含的经显示扫描的最后一条显示扫描线分别为G64和G96，触摸驱动线Tx1所对应的当前触摸扫描区域内包含的经显示扫描的最后一条显示扫描线为G64，当前触摸驱动线Tx1所对应的触摸扫描区域与经显示扫描的最后一条显示扫描线G64对应的显示扫描区域存在交叠；触摸驱动线Tx2所对应的当前触摸扫描区域内包含的经显示扫描的最后一条显示扫描线为G96，当前触摸驱动线Tx2所对应的触摸扫描区域与经显示扫描的最后一条显示扫描线G96所对应的显示扫描区域存在交叠；
对于当前触摸驱动线Tx1所对应的触摸扫描区域与经显示扫描的最后一条显示扫描线G64所对应的显示扫描区域存在交叠的情形，依照本发明实施例提供的触摸扫描驱动方法，触摸扫描跳过与显示扫描区域存在交叠的触摸驱动线Tx1所对应的触摸扫描区域，扫描该触摸驱动线Tx1后任一条触摸驱动线Tx 1+i所对应的触摸扫描区域，优选地例如是触摸驱动线Tx2所对应的触摸扫描区域，并在下一个触摸扫描时段返回该触摸驱动线Tx1所对应的触摸扫描区域进行扫描；
对于当前触摸驱动线Tx2所对应的触摸扫描区域与经显示扫描的最后一条显示扫描线G96所对应的显示扫描区域存在交叠的情形，依照本发明实施例提供的触摸扫描驱动方法，触摸扫描跳过与显示扫描区域存在交叠的触摸驱动线Tx2所对应的触摸扫描区域，扫描该触摸驱动线Tx2后任一条触摸驱动线Tx 2+i所对应的触摸扫描区域，优选地例如是触摸驱动线Tx3所对应的触摸扫描区域，并在下一个触摸扫描时段返回该触摸驱动线Tx2所对应的触摸扫描区域进行扫描；
在第二个触摸帧内，触摸驱动线Tx19出现上述交叠现象，Y2＝32*(X+19+2)，67*(X-1)＜32*(X+21)＜＝67*X，在Tx19时为67*(X-1)＜＝32*(X+21)＜67*X+7，得到：35*X＜739，且35*X＞＝672或35*X＞＝665，当X＝19时出现交叠，Y2＝1280；即在触摸驱动线Tx19所对应的当前触摸扫描区域内包含的经显示扫描的最后一条显示扫描线是G1280，触摸驱动线Tx19所对应的当前触摸扫描区域内包含的经显示扫描的最后一条显示扫描线为G1280，当前触摸驱动线Tx19所对应的触摸扫描区域与经显示扫描的最后一条显示扫描线G1280所对应的显示扫描区域存在交叠；
对于当前触摸驱动线Tx19所对应的触摸扫描区域与经显示扫描的最后一条显示扫描线G1280所对应的显示扫描区域存在交叠的情形，依照本发明实施例提供的触摸扫描驱动方法，触摸扫描跳过与显示扫描区域存在交叠的触摸驱动线Tx19所对应的触摸扫描区域，扫描该触摸驱动线Tx19后任一条触摸驱动线Tx19+i所对应的触摸扫描区域，优选地，例如是触摸驱动线Tx20所对应的触摸扫描区域，并在下一个触摸扫描时段返回该触摸驱动线Tx19所对应的触摸扫描区域进行扫描。
以上所述的具体实施例，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施例而已，并不用于限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (11)

  1. 一种触摸显示驱动方法，包括：
    在显示扫描时段，对包括多条显示扫描线的显示扫描区域进行显示扫描；
    在触摸扫描时段，当当前触摸驱动线所对应的触摸扫描区域与所述显示扫描区域存在交叠时，跳过与所述显示扫描区域存在交叠的触摸扫描区域，对所述当前触摸驱动线后任一条触摸驱动线所对应的触摸扫描区域进行触摸扫描；以及
    在下一个触摸扫描时段，返回对与所述显示扫描区域存在交叠的触摸扫描区域进行触摸扫描；
    其中，触摸扫描区域大于显示扫描区域，并且触摸扫描的扫描速度大于显示扫描的扫描速度，且二者交替地驱动。
  2. 根据权利要求1所述的触摸显示驱动方法，在触摸扫描时段还包括：
    判断触摸扫描区域与显示扫描区域是否存在交叠。
  3. 根据权利要求2所述的触摸显示驱动方法，其中，所述判断包括：
    判断显示扫描区域中的最后一条显示扫描线是否处于当前触摸驱动线所对应的触摸扫描区域，如果是，则确定触摸扫描区域与显示扫描区域存在交叠；否则，确定触摸扫描区域与显示扫描区域不存在交叠。
  4. 根据权利要求1所述的触摸显示驱动方法，其中，所述当前触摸驱动线后任一条触摸驱动线是所述当前触摸驱动线后的第一条触摸驱动线。
  5. 根据权利要求1-4中任一项所述的触摸显示驱动方法，其中，触摸驱动线是触摸屏中横向设置的公共电极。
  6. 根据权利要求1-4中任一项所述的触摸显示驱动方法，其中，所述触摸显示驱动方法是通过对触摸扫描信号和显示扫描信号进行控制实现的，所述触摸扫描信号和所述显示扫描信号分别由触摸驱动电路和栅极驱动电路发出。
  7. 根据权利要求6所述的触摸显示驱动方法，其中，所述对触摸扫描信号和显示扫描信号进行控制是对分别发出触摸扫描信号和显示扫描信号的触摸驱动电路和栅极驱动电路进行软件升级。
  8. 一种触摸显示驱动装置，包括：
    显示扫描信号发生装置，用于产生显示扫描信号，在显示扫描时段，所述显示扫描信号控制对包括多条显示扫描线的显示扫描区域进行显示扫描；以及
    触摸扫描信号发生装置，用于产生触摸扫描信号，在触摸扫描时段，当当前触 摸驱动线所对应的触摸扫描区域与所述显示扫描区域存在交叠时，所述触摸扫描信号控制使得跳过与显示扫描区域存在交叠的触摸扫描区域，对所述当前触摸驱动线后任一条触摸驱动线所对应的触摸扫描区域进行触摸扫描，且在下一个触摸扫描时段，返回对与显示扫描区域存在交叠的触摸扫描区域进行触摸扫描，
    其中，触摸扫描区域大于显示扫描区域，并且触摸扫描的扫描速度大于显示扫描的扫描速度，且二者交替地驱动。
  9. 根据权利要求8所述的触摸显示驱动装置，其中，所述触摸扫描信号发生装置是触摸驱动电路。
  10. 根据权利要求8所述的触摸显示驱动装置，其中，所述显示扫描信号发生装置是栅极驱动电路。
  11. 一种触摸显示屏，包含有权利要求8至10中任一项所述的触摸显示驱动装置。
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Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104199573B (zh) * 2014-08-26 2017-05-31 京东方科技集团股份有限公司 触摸驱动方法、触摸驱动装置及触摸显示屏
TWI581154B (zh) * 2016-03-09 2017-05-01 友達光電股份有限公司 觸控顯示裝置
CN107656657A (zh) * 2016-07-26 2018-02-02 中华映管股份有限公司 触控装置和其噪声干扰改善方法
CN106886332B (zh) * 2017-01-13 2020-02-21 北京集创北方科技股份有限公司 触摸显示屏的驱动方法、驱动装置和触摸显示装置
US11158685B2 (en) * 2017-11-03 2021-10-26 Raydium Semiconductor Corporation Organic light-emitting diode touch display operating method
CN108415606B (zh) * 2018-03-26 2021-01-12 京东方科技集团股份有限公司 显示触控扫描方法及芯片、存储介质、显示装置
KR20220040577A (ko) * 2020-09-23 2022-03-31 삼성디스플레이 주식회사 표시 장치
CN112331127B (zh) 2020-11-30 2023-06-20 武汉天马微电子有限公司 显示面板的驱动方法、显示面板和显示装置
CN112650412B (zh) * 2020-12-28 2024-04-26 武汉天马微电子有限公司 一种触控显示屏及其驱动方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103186426A (zh) * 2012-12-21 2013-07-03 敦泰科技有限公司 避免触摸检测与液晶显示扫描互相干扰的方法
CN103279214A (zh) * 2012-06-28 2013-09-04 上海天马微电子有限公司 触摸显示屏的驱动方法
CN104199573A (zh) * 2014-08-26 2014-12-10 京东方科技集团股份有限公司 触摸驱动方法、触摸驱动装置及触摸显示屏

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110148801A1 (en) * 2009-12-18 2011-06-23 Bateman Steven S Touch panel region of interest reporting scheme
JP5501158B2 (ja) * 2010-08-23 2014-05-21 株式会社ジャパンディスプレイ タッチ検出機能付き表示装置、駆動回路、タッチ検出機能付き表示装置の駆動方法、および電子機器
KR101761580B1 (ko) * 2010-09-08 2017-07-27 엘지디스플레이 주식회사 터치 센서를 갖는 표시 장치
JP5424347B2 (ja) * 2010-09-17 2014-02-26 株式会社ジャパンディスプレイ タッチ検出機能付き表示装置およびその駆動方法、駆動回路、ならびに電子機器
TWI421749B (zh) * 2010-12-30 2014-01-01 Au Optronics Corp 顯示面板及其操作方法
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103279214A (zh) * 2012-06-28 2013-09-04 上海天马微电子有限公司 触摸显示屏的驱动方法
CN103186426A (zh) * 2012-12-21 2013-07-03 敦泰科技有限公司 避免触摸检测与液晶显示扫描互相干扰的方法
CN104199573A (zh) * 2014-08-26 2014-12-10 京东方科技集团股份有限公司 触摸驱动方法、触摸驱动装置及触摸显示屏

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