WO2021227003A1 - 触控驱动方法、触控显示装置及电子设备 - Google Patents

触控驱动方法、触控显示装置及电子设备 Download PDF

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Publication number
WO2021227003A1
WO2021227003A1 PCT/CN2020/090500 CN2020090500W WO2021227003A1 WO 2021227003 A1 WO2021227003 A1 WO 2021227003A1 CN 2020090500 W CN2020090500 W CN 2020090500W WO 2021227003 A1 WO2021227003 A1 WO 2021227003A1
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WIPO (PCT)
Prior art keywords
display
touch
sub
pixel
pixels
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PCT/CN2020/090500
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English (en)
French (fr)
Inventor
蒋宜辰
龚庆
张光均
罗鸿强
Original Assignee
京东方科技集团股份有限公司
成都京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 成都京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to CN202080000749.XA priority Critical patent/CN113994310B/zh
Priority to US17/270,069 priority patent/US11327602B2/en
Priority to PCT/CN2020/090500 priority patent/WO2021227003A1/zh
Publication of WO2021227003A1 publication Critical patent/WO2021227003A1/zh

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    • 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
    • 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
    • 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
    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3266—Details of drivers for scan 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
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/02—Composition of display devices
    • G09G2300/023—Display panel composed of stacked panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • 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
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0297—Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2354/00—Aspects of interface with display user

Definitions

  • the embodiments of the present disclosure relate to a touch driving method, a touch display device, and an electronic device.
  • Display devices mainly include Liquid Crystal Display (LCD) devices and Organic Light Emitting Diode (OLED) display devices.
  • LCD Liquid Crystal Display
  • OLED Organic Light Emitting Diode
  • LCD Liquid Crystal Display
  • OLED Organic Light Emitting Diode
  • LCD Liquid Crystal Display
  • OLED Organic Light Emitting Diode
  • the display device can also take into account multiple functions such as touch control at the same time.
  • At least one embodiment of the present disclosure provides a touch driving method for a touch display device, the touch display device including a display structure and a touch structure stacked with the display structure, the method includes: In the process of applying display data to the display structure in a row scan manner, a periodic touch scan signal is applied to the touch structure, wherein each period of the touch scan signal has a signal rising edge and a signal falling The signal rising edge and the signal falling edge of at least one period of the touch scanning signal are respectively located in the display scanning period for scanning the display sub-pixels of the same color in different rows of the display structure.
  • the display sub-pixels are arranged in a pixel array, and the display sub-pixels of the same color in the different rows are adjacent to each other in the column direction.
  • the display sub-pixels include a plurality of first-color sub-pixels, a plurality of second-color sub-pixels, and a plurality of third-color sub-pixels.
  • the display sub-pixels in the first row are cyclically arranged in the order of the first-color sub-pixels, the second-color sub-pixels, the third-color sub-pixels, and the second-color sub-pixels in the row direction .
  • the second row displays sub-pixels in the row direction with the third color sub-pixel, the second color sub-pixel, the first color sub-pixel, and the second color
  • the order of the sub-pixels is cyclically arranged.
  • the first color sub-pixels and the third color sub-pixels located in the same row are scanned in the same display scanning period, and the display scanning of the second color sub-pixels The period and the display scan period of the first color sub-pixel and the third color sub-pixel alternate with each other.
  • the display sub-pixels are arranged in a pixel array, and the display sub-pixels of the same color in the different rows are adjacent to each other in the row direction and different from each other in the column direction. Adjacent.
  • the display sub-pixels include a plurality of first-color sub-pixels, a plurality of second-color sub-pixels, and a plurality of third-color sub-pixels, and each column of display sub-pixels
  • the pixels are cyclically arranged in the order of the first color sub-pixels, the second color sub-pixels, and the third color sub-pixels in the column direction.
  • the first color sub-pixel is a red sub-pixel
  • the second color sub-pixel is a green sub-pixel
  • the third color sub-pixel is a blue sub-pixel.
  • Sub-pixels, or the first-color sub-pixels are blue sub-pixels
  • the second-color sub-pixels are green sub-pixels
  • the third-color sub-pixels are red sub-pixels.
  • the rising edge of the signal is before the falling edge of the signal, or when the touch scan signal In each cycle of, the falling edge of the signal is before the rising edge of the signal.
  • the frequency of the touch scan signal is 1/2 of the frequency corresponding to the display scan period of one display sub-pixel.
  • the display data is applied to the display sub-pixels under the control of a display scan signal.
  • the touch structure responds to the rising edge of the signal and the falling edge of the signal to switch the working state.
  • the rising edge of the signal is a stage in which the touch scan signal changes from a first level to a second level
  • the falling edge of the signal is the A stage in which the touch scan signal changes from a second level to a first level
  • the second level is higher than the first level
  • At least one embodiment of the present disclosure further provides a touch display device, including a display structure, a touch structure, and a touch controller, wherein the display structure and the touch structure are stacked, and the touch controller is configured
  • a touch display device including a display structure, a touch structure, and a touch controller, wherein the display structure and the touch structure are stacked, and the touch controller is configured
  • each period of the touch scan signal has a signal rising edge and a signal The falling edge, and the signal rising edge and the signal falling edge of at least one period of the touch scan signal are respectively located in the display scan period for scanning the display sub-pixels of the same color in different rows of the display structure.
  • the display sub-pixels are arranged in a pixel array, and the display sub-pixels of the same color in the different rows are adjacent to each other in the column direction.
  • the display sub-pixels include a plurality of first-color sub-pixels, a plurality of second-color sub-pixels, and a plurality of third-color sub-pixels.
  • the display sub-pixels in the first row are cyclically arranged in the order of the first-color sub-pixels, the second-color sub-pixels, the third-color sub-pixels, and the second-color sub-pixels in the row direction .
  • the second row displays sub-pixels in the row direction with the third color sub-pixel, the second color sub-pixel, the first color sub-pixel, and the second color
  • the order of the sub-pixels is cyclically arranged.
  • the first color subpixel is a red subpixel
  • the second color subpixel is a green subpixel
  • the third color subpixel is a blue subpixel.
  • Sub-pixels, or the first-color sub-pixels are blue sub-pixels
  • the second-color sub-pixels are green sub-pixels
  • the third-color sub-pixels are red sub-pixels.
  • the touch display device provided by an embodiment of the present disclosure further includes a display controller, wherein the display controller is configured to provide a display scan signal so that the display data is applied to the display sub-pixels.
  • the touch structure includes a self-capacitive touch structure or a mutual-capacitive touch structure.
  • the touch structure and the display structure form an embedded structure or an external structure.
  • At least one embodiment of the present disclosure further provides an electronic device including the touch display device according to any embodiment of the present disclosure.
  • FIG. 1 is a schematic diagram of an arrangement of display sub-pixels of a touch display device according to some embodiments of the present disclosure
  • FIG. 2A is a schematic diagram of a signal applying circuit of a touch display device provided by some embodiments of the present disclosure
  • 2B is a schematic diagram of a specific example of a signal applying circuit of a touch display device provided by some embodiments of the present disclosure
  • 3A is a signal timing diagram of a touch display device provided by some embodiments of the present disclosure.
  • 3B is a signal timing diagram of another touch display device provided by some embodiments of the present disclosure.
  • FIG. 4 is a schematic diagram of an arrangement of display sub-pixels of another touch display device provided by some embodiments of the present disclosure.
  • FIG. 5 is a schematic block diagram of a touch display device provided by some embodiments of the present disclosure.
  • FIG. 6 is a schematic block diagram of another touch display device provided by some embodiments of the present disclosure.
  • FIG. 7 is a schematic block diagram of an electronic device provided by some embodiments of the present disclosure.
  • MUX multiplexers
  • the touch layer of the display device is often close to the display layer, when the display device performs a touch operation, the touch signal (such as touch Control scan signal, etc.) and the data signal provided to the sub-pixels of the display layer often have a coupling effect, which leads to fluctuations in the data signal applied to the sub-pixels, and it is difficult to accurately write the sub-pixels, which in turn leads to the display device
  • the provided picture is prone to display abnormalities, for example, water ripple-like bright and dark or chromatic aberration stripes appear on the display picture, which has a serious adverse effect on the display effect of the picture.
  • the touch display device includes a display structure and a touch structure stacked on the display structure.
  • the touch driving method includes: In the process of applying display data to the display structure by scanning, periodic touch scanning signals are applied to the touch structure. Each period of the touch scan signal has a signal rising edge and a signal falling edge, and the signal rising edge and signal falling edge of at least one period of the touch scan signal are respectively located on the display sub-pixels of the same color in different rows of the display structure. The scan is displayed within the scan period.
  • the touch driving method provided by the embodiments of the present disclosure can reduce the display of the display sub-pixels by making the signal rising edge and the signal falling edge of each period of the touch scanning signal be located in the display scanning period of the display sub-pixels of the same color.
  • the signal rising edge and signal falling edge of the touch scan signal in the scan period are coupled to the display data, thereby reducing or avoiding the signal rising edge and signal falling edge of the touch scan signal during the scanning phase of the display sub-pixels.
  • Adverse effects thereby avoiding display abnormalities in the display screen, for example, avoiding water ripples in the display screen, so that the touch display device can achieve a better screen display effect.
  • a touch driving method provided by some embodiments of the present disclosure includes the following steps.
  • Step S10 In the process of applying display data to the display structure in a progressive scan manner, a periodic touch scan signal is applied to the touch structure, and the signal rising edge and signal falling edge of at least one period of the touch scan signal are respectively It is located in the display scanning period for scanning the display sub-pixels of the same color in different rows of the display structure.
  • the touch driving method provided by the embodiment of the present disclosure may be used in a touch display device including a display structure and a touch structure laminated with the display structure.
  • Each period of the touch scan signal has a signal rising edge and a signal falling edge, and the signal rising edge and signal falling edge of at least one period of the touch scan signal are respectively located on the display sub-pixels of the same color in different rows of the display structure.
  • the signal rising edge and the signal falling edge of each period of the touch scanning signal are respectively located in the display scanning period for scanning the display sub-pixels of the same color in different rows of the display structure.
  • the touch driving method can reduce the signal rising edge and the signal falling edge of the touch scan signal applied to the touch structure during the display scan period of the display sub-pixel.
  • the coupling effect of data (such as the aforementioned data signal), thereby reducing the negative effects of the rising edge and falling edge of the touch scan signal on the scanning stage of the display sub-pixels, thereby avoiding display abnormalities in the display screen, such as avoiding display Water ripples appear on the screen, which improves the screen display quality of the touch display device and provides a better screen display effect.
  • the display sub-pixels are arranged in a pixel array, and the display sub-pixels of the same color in different rows are adjacent to each other in the column direction.
  • the display sub-pixels of the same color in different rows are located in adjacent rows. middle.
  • the following takes the arrangement of the display sub-pixels shown in FIG. 1 as an example to specifically describe the touch driving method provided by the embodiment of the present disclosure.
  • FIG. 1 is a schematic diagram of an arrangement of display sub-pixels of a touch display device according to some embodiments of the present disclosure.
  • a touch display device adopting the arrangement of display sub-pixels shown in FIG. 1 may be driven by the touch driving method provided by the embodiment of the present disclosure.
  • the display sub-pixels are arranged as a pixel array 100.
  • the display sub-pixel includes a plurality of first-color sub-pixels R, a plurality of second-color sub-pixels G, and a plurality of third-color sub-pixels B.
  • the display sub-pixels in the first row are cyclically arranged in the order of the first color sub-pixel R, the second color sub-pixel G, the third color sub-pixel B, and the second color sub-pixel G in the row direction.
  • the second row of display sub-pixels are cyclically arranged in the row direction in the order of the third-color sub-pixels B, the second-color sub-pixels G, the first-color sub-pixels R, and the second-color sub-pixels G.
  • the pixel array 100 is a widely used pentile pixel arrangement.
  • the display sub-pixels located in the same row refer to the display sub-pixels that are included in the corresponding pixel circuits on the same extension line in the row direction
  • the display sub-pixels located in different rows are Refers to the display sub-pixels whose corresponding pixel circuits are located on two different extension lines in the row direction
  • the display sub-pixels located in the same column refer to the corresponding pixel circuits that are included on the same extension line in the column direction.
  • Display sub-pixels, display sub-pixels located in different columns refer to display sub-pixels that include corresponding pixel circuits located on two different extension lines in the column direction.
  • the extension line may be a straight line or a curve, which is not limited in the embodiment of the present disclosure. That is, in the description of the present disclosure, "located in the same row” means that the pixel circuits of the display sub-pixels are located in the same row, and “located in the same column” means that the pixel circuits of the display sub-pixels are located in the same column, rather than referring to the display sub-pixels.
  • the overall area of the pixel or the position of the pixel opening area of the display sub-pixel is restricted.
  • the first color sub-pixel R, the second color sub-pixel G, and the third color sub-pixel B are located in the same row, which means that the pixel circuit of the first color sub-pixel R, the second color sub-pixel R
  • the pixel circuit of the sub-pixel G and the pixel circuit of the third-color sub-pixel B are located in the same row, that is, the pixel circuit of the first-color sub-pixel R, the pixel circuit of the second-color sub-pixel G, and the third-color sub-pixel
  • the pixel circuits of B are located on the same extension line in the row direction.
  • FIG. 1 does not specifically show the relative positions of the display sub-pixels in the actual arrangement.
  • FIG. 1 does not show the pixel opening areas of the display sub-pixels in the actual arrangement.
  • Relative position For example, since the pixel opening area of each display sub-pixel may have a different shape, in the actual arrangement of the display sub-pixels, the center of the pixel opening area of each display sub-pixel may not be located on the same horizontal line or in the row direction. The same vertical line along the column direction.
  • the center of the pixel opening area of the first color sub-pixel R and the center of the pixel opening area of the third color sub-pixel B are located on the same first horizontal line extending in the row direction, and the pixel opening of the second color sub-pixel G
  • the center of the area is located on the same second horizontal line extending along the row direction, and the first horizontal line and the second horizontal line have a small distance in the column direction, thereby facilitating the arrangement of the display sub-pixels in the row direction.
  • the actual specific structure, arrangement position, etc. of the pixel opening regions of the display sub-pixels can refer to conventional designs in the art, and the embodiments of the present disclosure do not limit this.
  • FIG. 2A is a schematic diagram of a signal applying circuit of a touch display device provided by some embodiments of the present disclosure
  • FIG. 3A is a signal timing diagram of a touch display device provided by some embodiments of the present disclosure.
  • the first color sub-pixel R and the third color sub-pixel B located in the same row are scanned in the same display scanning period (for example, the first display scanning period SCAN1), and the first The display scanning period of the two-color sub-pixel G (for example, the second display scanning period SCAN2) and the display scanning period of the first-color sub-pixel R and the third-color sub-pixel B alternate with each other.
  • the same display scanning period for example, the first display scanning period SCAN1
  • the first The display scanning period of the two-color sub-pixel G for example, the second display scanning period SCAN2
  • the display scanning period of the first-color sub-pixel R and the third-color sub-pixel B alternate with each other.
  • the display data CTDR and CTDB corresponding to the first color sub-pixel R and the third color sub-pixel B are written into the first color sub-pixel R and the third color sub-pixel B;
  • the display data CTDG corresponding to the second color sub-pixel G is written into the second color sub-pixel G.
  • the signal applying circuit of the touch display device may include a branch circuit 2, and the branch circuit 2 is, for example, a multiplexer (MUX) circuit.
  • the shunt circuit 2 includes a plurality of shunt sub-circuits 5, and each shunt sub-circuit 5 is connected to two data lines DL1 and DL2, so as to provide corresponding display data CTDR, CTDB for two adjacent columns of display sub-pixels in the pixel array 100 Or CTDG.
  • the data lines DL1 and DL2 are combined into one source signal line SL (for example, the source signal lines SL1 and SL2) through the shunt circuit 2, thereby achieving the purpose of reducing the number of wires.
  • the display data CTDR and CTDB are provided to the first color sub-pixel R And the third color sub-pixel B;
  • the second display scan signal MUX2 that is, the second branch control signal
  • the display data CTDG is provided to the second Color sub pixel G.
  • Gout1 and Gout2 are shown, but it should be understood that the number of gate scan signals is not limited to this.
  • FIG. 2B is a schematic diagram of a specific example of a signal applying circuit of a touch display device provided by some embodiments of the present disclosure.
  • FIG. 2B shows a type of a signal applying circuit of the touch display device shown in FIG. 2A.
  • the structure of the signal application circuit of the touch display device shown in FIG. 2B except for the input circuit 1 is basically the same as or similar to the signal application circuit of the touch display device shown in FIG. 2A, and will not be omitted here. Go into details.
  • the signal applying circuit of the touch display device further includes an input circuit 1.
  • the input circuit 1 is, for example, a cell test (CT) circuit, and the input circuit 1 includes a plurality of input sub-circuits 4,
  • the input sub-circuit 4 and the multiple branch sub-circuits 5 of the branch circuit 2 are connected in a one-to-one correspondence.
  • CT cell test
  • each input sub-circuit 4 will receive the display data CTDR, CTDB and CTDG, through the first display scan signal MUX1, the second display scan signal MUX2, the control signals CTSWRB, CTSWBR, CTSWG and the grid
  • the control of the scan signals Gout1 and Gout2 the display data CTDR, CTDB and CTDG are written into the corresponding display sub-pixels in the display scan period of the corresponding display sub-pixels, so as to realize independent control of each display sub-pixel to realize screen display .
  • a row scan array uses a pair of clock signals and a trigger signal to generate gate scan signals Gout1 and Gout2 that sequentially turn on the display sub-pixels arranged in the array row by row.
  • gate scan signal Gout1 takes the gate scan signal Gout1 as an example, when the gate scan signal Gout1 is at an effective level, the corresponding first row of display sub-pixels of the pixel array 100 are in the scanning stage.
  • the gate of the driving transistor of each display sub-pixel in the first row of display sub-pixels will be written into the display data on the corresponding data line DL1 or DL2.
  • the voltage level of the display data determines the corresponding display sub-pixel. Luminous brightness.
  • the gate scan signal Gout1 is turned on again to refresh the voltage of the gates of the driving transistors of the first row of display sub-pixels, and so on, so as to display a picture.
  • each display sub-pixel when the touch display device is a liquid crystal touch display device, each display sub-pixel includes, for example, a pixel electrode and a storage capacitor, and display data (such as CTDR, CTDB, and CTDG) is written into the pixel electrode during the display scan period.
  • the storage capacitor stores the display data and maintains the potential of the pixel electrode at a potential corresponding to the display data, thereby deflecting the liquid crystal molecules, and the display sub-pixel emits light according to the required gray scale.
  • each display sub-pixel when the touch display device is an OLED touch display device, each display sub-pixel includes, for example, a pixel circuit and an OLED light-emitting element.
  • display data is written into the pixel circuit and stored in the pixel circuit during the display scan period, and the OLED light-emitting element is driven by the pixel circuit to emit light according to the required gray scale.
  • the display scan period is the effective period of the first display scan signal MUX1 and the second display scan signal MUX2.
  • the writing process of the display data please refer to the conventional design, which will not be described in detail here.
  • the signal rising edge and signal falling edge of each period of the touch scan signal TOUC are both located in the display scanning period for scanning the second color sub-pixel G, for example, in the second display scanning period SCAN2 Inside. Therefore, the signal rising edge and signal falling edge of the touch scan signal TOUC will only slightly affect the light-emitting brightness of the second color sub-pixel G in the second display scan period SCAN2, for example, make the second color sub-pixel G
  • the luminous brightness is slightly darker or brighter, and because the display scan cycle frequency of the display sub-pixels is very fast, the bright and dark effects of the second color sub-pixel G of a single color can cancel each other out, thereby eliminating the water ripple phenomenon .
  • the signal rising edge and signal falling edge of the touch scan signal TOUC will not be applied to the first color sub pixel R and the third color during the first display scan period SCAN1 of the first color sub pixel R and the third color sub pixel B.
  • a coupling effect is generated between the display data of the sub-pixel B, so as to avoid the negative effect of the rising edge and the falling edge of the signal of the touch scan signal TOUC on the display data during the scanning phase of the first color sub-pixel R and the third color sub-pixel B .
  • the touch display device it is possible to avoid display abnormalities in the display screen provided by the touch display device, for example, to avoid the water ripple phenomenon in the display screen due to the influence of the display data applied to the sub-pixels of multiple colors, so that the touch display device can provide more High-quality picture display effect.
  • the display data corresponding to the first color sub-pixel R and the third color sub-pixel B is displayed in the first display scan signal MUX1.
  • the control is respectively applied to the first color sub-pixel R and the third color sub-pixel B, thereby controlling the light-emitting brightness of the first color sub-pixel R and the third color sub-pixel B.
  • the display data corresponding to the second color sub-pixel G is applied to the second color sub-pixel G under the control of the second display scan signal MUX2, thereby controlling The brightness of the second color sub-pixel G emitting light.
  • the display data CTDR and CTDB are applied to the first color sub-pixels under the control of the low level of the first display scan signal MUX1
  • the display data CTDG is applied to the second color sub-pixel G under the control of the low level of the second display scan signal MUX2
  • the display data The data CTDR and CTDB can also be configured to be applied to the first color sub-pixel R and the third color sub-pixel B under the control of the high level of the first display scan signal MUX1
  • the display data CTDG can also be configured to be in the second
  • the display scan signal MUX2 is applied to the second color sub-pixel G under the control of the high level, which is not limited in the embodiment of the present disclosure.
  • the gate corresponding to the display sub-pixel row where the first color sub-pixel R and the third color sub-pixel B are located The scan signal (for example, the gate scan signal Gout1 corresponding to the display sub-pixels in the first row of the pixel array 100) is applied to the first color sub-pixel R and the third color sub-pixel B at the same time, so that the first color sub-pixel R And the scanning of the third color sub-pixel B, so as to realize the writing of the display data CTDR and CTDB; in the second display scanning period SCAN2 of the second color sub-pixel G, corresponding to the display sub-pixel G where the second color sub-pixel G is located The gate scan signal of the pixel row is simultaneously applied to the second color sub-pixel G to realize the scanning of the second color sub-pixel G, so as to realize the writing of the display data CTDG.
  • the gate scan signal of the pixel row is simultaneously applied to the second color sub-pixel G to realize the scanning of the second color sub-pixel G, so as to realize the writing of the display data CTDG.
  • the pixel array 100 may use the display sub-pixels in each row to sequentially apply corresponding gate scan signals to achieve progressive scanning of the display sub-pixels in the pixel array 100; or the pixel array 100 may also use interlaced gate scans.
  • the sequence of the signals realizes the scanning of the display sub-pixels in the pixel array 100, for example, the display sub-pixels in the odd or even rows of the pixel array 100 are scanned line by line, which is not limited in the embodiment of the present disclosure.
  • the gate scanning signal may be provided by at least one gate driving circuit in the touch display device, so as to realize the progressive scanning of the display sub-pixels in the pixel array 100.
  • the gate drive circuit may adopt a usual cascaded form of multiple shift register units to output a set of shift signals as gate scan signals.
  • the gate drive circuit can be provided on the array substrate of the touch display device to form an array substrate gate drive (Gate Driver On Array, GOA) circuit, or can also be provided outside the array substrate, such as through a flexible circuit board, etc. It is electrically connected to the scan lines on the array substrate, so that the display sub-pixels in the pixel array 100 are scanned row by row.
  • GOA Gate Driver On Array
  • the gate driving circuit can be arranged on one side of the touch display device.
  • the gate driving circuit can also be provided on both sides of the touch display device to realize bilateral driving.
  • a gate drive circuit can be provided on one side of the touch display device to scan the display sub-pixels of odd rows, and a gate drive circuit can be provided on the other side of the touch display device to implement the alignment. Even-numbered rows show the scanning of sub-pixels.
  • the first color sub-pixel R may be a red sub-pixel
  • the second color sub-pixel G may be a green sub-pixel
  • the third color sub-pixel B may be a blue sub-pixel
  • the first color sub-pixel may be a blue sub-pixel
  • the second color sub-pixel may be a green sub-pixel
  • the third color sub-pixel may be a red sub-pixel
  • the first color sub pixel is a blue sub pixel
  • the second color sub pixel is a red sub pixel
  • the third color sub pixel is a green sub pixel, and so on.
  • the embodiment of the present disclosure does not limit the specific emission colors of the first color sub pixel, the second color sub pixel, and the third color sub pixel, as long as it meets the requirements of the first color sub pixel, the second color sub pixel, and the third color sub pixel.
  • the luminous colors may be different from each other.
  • the first-color sub-pixel, the second-color sub-pixel, and the third-color sub-pixel may also be other display sub-pixels of different colors; or, the display sub-pixel may also include a fourth Color sub-pixels, the light-emitting color of the fourth color sub-pixel is different from the light-emitting colors of the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel.
  • the fourth color sub-pixel may be scanned in the same display scanning period (for example, the first display scanning period SCAN1) as the first color sub-pixel and the third color sub-pixel, or the display scanning period of the fourth color sub-pixel may also be
  • the display scanning period of the sub-pixels of the first color and the third color is different from the display scanning period of the sub-pixels of the second color, which is not limited by the embodiment of the present disclosure.
  • the frequency of the touch scan signal TOUC is 1/2 of the frequency corresponding to the display scan period of one display sub-pixel, that is, the frequency of the touch scan signal TOUC is the first color sub-pixel R and
  • the frequency corresponding to the first display scanning period SCAN1 of the third color sub-pixel B is 1/2, or 1/2 of the frequency corresponding to the second display scanning period SCAN2 of the second color sub-pixel G.
  • the embodiment of the present disclosure does not limit the relationship between the frequency of the touch scan signal and the frequency corresponding to the display scan period of the display sub-pixels.
  • the frequency of the touch scan signal may also be 1/4, 1/6 or other suitable values of the frequency corresponding to the display scan period of one display sub-pixel.
  • the signal rising edge of the touch scan signal TOUC is a stage in which the touch scan signal TOUC changes from a first level to a second level, and the signal falling edge of the touch scan signal TOUC is a touch scan
  • the signal TOUC changes from the second level to the first level, and the second level is higher than the first level.
  • the first level may be a low level or a ground level
  • the second level may be a high level.
  • the rising edge of the signal is before the falling edge of the signal.
  • the high level of the touch scan signal TOUC is the effective working level, that is, When the touch scan signal TOUC is at a high level, the touch display device performs a corresponding touch operation; or, in some other embodiments of the present disclosure, as shown in FIG. 3B, each of the touch scan signals TOUC During the period, the falling edge of the signal is before the rising edge of the signal. At this time, the low level of the touch scan signal TOUC is the effective working level, which is not limited by the embodiment of the present disclosure.
  • the touch structure may respond to the signal rising edge and the signal falling edge of the touch scan signal TOUC to switch the working state, and then perform, for example, a periodic touch scan operation.
  • the touch scan signal TOUC can be any signal in the touch detection process of the touch structure, it can be a touch scan signal applied to the touch electrodes of the touch structure, or it can be a touch from the touch structure.
  • the touch sensing signal of the electrode may also be an enable signal for controlling the working state of the touch structure, etc., which is not limited in the embodiment of the present disclosure.
  • the touch structure may include a self-capacitive touch structure or a mutual-capacitive touch structure.
  • the touch structure may respond to the signal rising edge and the signal falling edge of the touch scanning signal TOUC to realize the detection of the capacitance change at the touch position.
  • the touch structure can perform scanning and sensing operations in response to the signal rising edge and the signal falling edge of the touch scanning signal TOUC.
  • the touch control structure and the display structure may form an in-cell structure or an on-cell structure.
  • the display structure may be a normal display panel, such as a liquid crystal display panel, an OLED display panel or a QLED display panel, etc.
  • the touch structure may be a touch layer or a touch panel.
  • the display structure may include, for example, an array substrate and a counter substrate disposed opposite to the array substrate, and the two are, for example, combined with each other to form a space for accommodating liquid crystal materials or OLED devices.
  • the touch structure is formed directly on the opposite substrate or attached to the opposite substrate, for example.
  • the display structure may be an array substrate on which an electroluminescent material or a liquid crystal layer is disposed, and the touch structure may be a touch layer.
  • the touch control structure is disposed on the array substrate, and the array substrate may also include a plurality of functional film layers, which may be determined according to actual requirements.
  • the embodiments of the present disclosure do not limit this.
  • touch driving method can be applied to an OLED display device, a QLED display device, or a liquid crystal display device with touch function, or can also be applied to any other type of touch function.
  • the embodiment of the present disclosure does not limit this display device.
  • the touch driving method provided by the embodiments of the present disclosure can be applied to touch-sensitive touch devices with a thin thickness and a narrow frame, such as flexible multi-layer On-Cell (Flexible Multi-Layer On-Cell, FMLOC) display devices with touch functions.
  • touch-sensitive touch devices with a thin thickness and a narrow frame
  • flexible multi-layer On-Cell Flexible Multi-Layer On-Cell, FMLOC
  • the optical display effect of this type of touch display device can be further improved, thereby providing a better quality display screen.
  • the display sub-pixels are arranged in a pixel array, and the display sub-pixels of the same color in different rows are adjacent to each other in the row direction and not adjacent to each other in the column direction, for example, the same color in different rows
  • the display sub-pixels of are located in non-adjacent rows and in adjacent columns.
  • FIG. 4 is a schematic diagram of an arrangement of display sub-pixels of another touch display device provided by some embodiments of the present disclosure.
  • a touch display device adopting the arrangement of display sub-pixels shown in FIG. 4 may be driven by the touch driving method provided by the embodiment of the present disclosure.
  • the touch driving method of the touch display device is basically the same as or similar to the touch driving method of the touch display device including the pixel array 100 shown in FIG. The description of the touch driving method of the display device will not be repeated here.
  • the display sub-pixels are arranged as a pixel array 200.
  • the display sub-pixels include a plurality of first-color sub-pixels R, a plurality of second-color sub-pixels G, and a plurality of third-color sub-pixels B.
  • Each column of display sub-pixels uses the first color sub-pixel R and the second color sub-pixel R in the column direction.
  • the color sub-pixels G and the third color sub-pixels B are arranged cyclically in sequence.
  • the first color sub-pixel R may be a red sub-pixel
  • the second color sub-pixel G may be a green sub-pixel
  • the third color sub-pixel B may be a blue sub-pixel
  • the first color sub-pixel may be The blue sub-pixels
  • the second color sub-pixels are green sub-pixels
  • the third color sub-pixels are red sub-pixels.
  • the first-color sub-pixel, the second-color sub-pixel, and the third-color sub-pixel may also be other sub-pixels of different colors.
  • the specific light-emitting color of the color sub-pixels is not limited, as long as the light-emitting colors of the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel are different from each other.
  • the display sub-pixels located in the same row refer to the display sub-pixels that are included in the corresponding pixel circuits on the same extension line in the row direction
  • the display sub-pixels located in different rows are Refers to the display sub-pixels whose corresponding pixel circuits are located on two different extension lines in the row direction
  • the display sub-pixels located in the same column refer to the corresponding pixel circuits that are included on the same extension line in the column direction.
  • Display sub-pixels, display sub-pixels located in different columns refer to display sub-pixels that include corresponding pixel circuits located on two different extension lines in the column direction.
  • the extension line may be a straight line or a curve, which is not limited in the embodiment of the present disclosure. That is, in the description of the present disclosure, "located in the same row” means that the pixel circuits of the display sub-pixels are located in the same row, and “located in the same column” means that the pixel circuits of the display sub-pixels are located in the same column, rather than referring to the display sub-pixels.
  • the overall area of the pixel or the position of the pixel opening area of the display sub-pixel is restricted.
  • the first color sub-pixel R, the second color sub-pixel G, and the third color sub-pixel B are located in the same column, which means that the pixel circuit of the first color sub-pixel R, the second color sub-pixel R
  • the pixel circuit of the sub-pixel G and the pixel circuit of the third-color sub-pixel B are located in the same column, that is, the pixel circuit of the first-color sub-pixel R, the pixel circuit of the second-color sub-pixel G, and the third-color sub-pixel
  • the pixel circuits of B are located on the same extension line in the column direction.
  • FIG. 4 does not specifically show the relative positions of the display sub-pixels in the actual arrangement.
  • FIG. 4 does not show the pixel opening areas of the display sub-pixels in the actual arrangement.
  • Relative position For example, since the pixel opening area of each display sub-pixel may have a different shape, in the actual arrangement of the display sub-pixels, the center of the pixel opening area of each display sub-pixel may not be located on the same horizontal line or in the row direction. The same vertical line along the column direction.
  • the center of the pixel opening area of the first color sub-pixel R and the center of the pixel opening area of the third color sub-pixel B are located on the same first vertical line extending in the column direction, and the pixel of the second color sub-pixel G
  • the center of the opening area is located on the same second vertical line extending along the column direction, and the first vertical line and the second vertical line have a smaller spacing in the row direction, thereby facilitating the arrangement of the display sub-pixels in the column direction.
  • the actual specific structure, arrangement position, etc. of the pixel opening regions of the display sub-pixels can refer to conventional designs in the art, and the embodiments of the present disclosure do not limit this.
  • the display sub-pixel may further include a fourth-color sub-pixel, and the light-emitting color of the fourth-color sub-pixel is different from that of the first-color sub-pixel, the second-color sub-pixel, and the third-color sub-pixel.
  • the light-emitting color of the pixel is not limited in the embodiment of the present disclosure.
  • touch driving method provided by the embodiment of the present disclosure can also be applied to a touch display device that adopts other display sub-pixel arrangements, which is not limited in the embodiment of the present disclosure.
  • At least one embodiment of the present disclosure also provides a touch display device, which includes a display structure, a touch structure, and a touch controller.
  • the display structure and the touch structure are stacked, and the touch controller is configured to apply periodic touch scan signals to the touch structure during the process of applying display data to the display structure in a progressive scan.
  • Each period has a signal rising edge and a signal falling edge, and the signal rising edge and signal falling edge of at least one period of the touch scan signal are respectively located in the display scanning period for scanning the display sub-pixels of the same color in different rows of the display structure .
  • the touch display device performs display scanning of display sub-pixels of the same color by making at least one cycle of the touch scanning signal applied to the touch structure, for example, the signal rising edge and the signal falling edge of each cycle are located in the same color.
  • the coupling effect between the rising edge and falling edge of the touch scan signal and the display data applied to the display structure in the display scan period of the display sub-pixels can be reduced, thereby reducing or avoiding the signal of the touch scan signal
  • the rising edge and the signal falling edge have an adverse effect on the scanning stage of the display sub-pixels, thereby avoiding display abnormalities in the display screen, such as avoiding water ripples in the display screen, and enabling the touch display device to achieve a better screen display effect.
  • FIG. 5 is a schematic block diagram of a touch display device provided by some embodiments of the present disclosure.
  • the touch display device 50 includes a display structure 510, a touch structure 520 and a touch controller 540.
  • the display structure 510 and the touch structure 520 are stacked, and the touch controller 540 is configured to apply periodic touch scan signals to the touch structure 520 during the process of applying display data to the display structure 510 in a progressive scan manner.
  • Each period of the control scan signal has a signal rising edge and a signal falling edge, and at least one period of the touch scan signal, for example, the signal rising edge and signal falling edge of each period are located in the same color in different rows of the display structure 510.
  • the display sub-pixels are scanned within the display scan period.
  • the display sub-pixels are arranged in a pixel array, and the display sub-pixels of the same color in different rows are adjacent to each other in the column direction, such as in adjacent rows.
  • the display sub-pixels of the display structure 510 include multiple first-color sub-pixels, multiple second-color sub-pixels, and multiple third-color sub-pixels.
  • the display sub-pixels in the first row are cyclically arranged in the row direction in the order of the first color sub-pixels, the second color sub-pixels, the third color sub-pixels, and the second color sub-pixels.
  • the second row The display sub-pixels are cyclically arranged in the order of the third color sub-pixels, the second color sub-pixels, the first color sub-pixels, and the second color sub-pixels in the row direction.
  • the first color sub-pixel is a red sub-pixel
  • the second color sub-pixel is a green sub-pixel
  • the third color sub-pixel is a blue sub-pixel
  • the color sub-pixels are blue sub-pixels
  • the second color sub-pixels are green sub-pixels
  • the third color sub-pixels are red sub-pixels.
  • the touch display device 50 further includes a display controller 530 configured to provide a display scan signal so that display data is applied to the display sub-pixels.
  • the display controller 530 may provide the aforementioned first display scan signal MUX1 and second display scan signal MUX2.
  • the touch structure 520 includes a self-capacitive touch structure or a mutual-capacitive touch structure.
  • the touch structure 520 and the display structure 510 form an in-cell structure or an on-cell structure.
  • the touch controller 540 and the display controller 530 can be implemented as any suitable circuit or chip, or can be implemented as a combination of software, hardware, and firmware, which is not limited in the embodiments of the present disclosure.
  • the touch display device 50 further includes a controller 550, which can be used to coordinate the operations of the display controller 530 and the touch controller 540 to enable The touch display device 50 takes into account both the display function and the touch function.
  • the controller 550 may be implemented as any suitable circuit or chip, or as a combination of software, hardware, and firmware, which is not limited in the embodiments of the present disclosure.
  • FIG. 6 is a schematic block diagram of a touch display device provided by some embodiments of the present disclosure.
  • the touch display device 30 includes a display structure 410 and a touch structure 420, and the display structure 410 includes a display sub-pixel P.
  • the display sub-pixels P may be arranged as the pixel array 100 as shown in FIG. 1 or the pixel array 200 as shown in FIG. 4.
  • the display structure 410 and the touch structure 420 are stacked and arranged.
  • the display structure 410 and the touch structure 420 are represented by the same wire frame. .
  • the touch display device 30 can be any LCD panel, LCD TV, display, OLED panel, OLED TV, electronic paper display device, mobile phone, tablet computer, notebook computer, digital photo frame, navigator, etc., which has display function and touch function.
  • the embodiments of the present disclosure do not limit the products or components of the product.
  • the touch display device 30 further includes a gate driver 3010, a timing controller 3020, and a data driver 3030.
  • the gate driver 3010 is used to drive a plurality of scan lines GL to provide gate scan signals
  • the data driver 3030 is used to drive a plurality of data lines DL to provide display data (data signals), for example, the data driver 3030 includes a display controller, and the data signal Provided to multiple data lines DL under the control of the display scan signal provided by the display controller
  • the timing controller 3020 is used to process the image data RGB input from the outside of the touch display device 30, and provide the processed image data RGB to the data driver 3030 And output the scan control signal GCS and the data control signal DCS to the gate driver 3010 and the data driver 3030 to control the gate driver 3010 and the data driver 3030.
  • the gate driver 3010 is connected to a plurality of scan lines GL in correspondence.
  • the multiple scan lines GL are correspondingly connected to the display sub-pixels P arranged in multiple rows.
  • the gate driver 3010 sequentially outputs gate scanning signals to a plurality of scanning lines GL, so that the rows of display sub-pixels P in the display structure 410 realize progressive scanning.
  • the gate driver 3010 may be implemented as a semiconductor chip, or may be integrated on, for example, the base substrate of the touch display device 30 to form a GOA circuit.
  • the data driver 3030 uses the reference gamma voltage to convert digital image data RGB input from the timing controller 3020 into data signals according to a plurality of data control signals DCS from the timing controller 3020.
  • the converted data signal is provided to the plurality of data lines DL under the control of the display scan signal provided by the display controller.
  • the data driver 3030 may be implemented as a semiconductor chip.
  • the timing controller 3020 processes externally input image data RGB to match the size and resolution of the display structure 410, and then provides the processed image data to the data driver 3030.
  • the timing controller 3020 uses synchronization signals (such as dot clock DCLK, data enable signal DE, horizontal synchronization signal Hsync, and vertical synchronization signal Vsync) input from the outside of the touch display device 30 to generate multiple scan control signals GCS and multiple data controls Signal DCS.
  • the timing controller 3020 provides the generated scan control signal GCS and data control signal DCS to the gate driver 3010 and the data driver 3030, respectively, for controlling the gate driver 3010 and the data driver 3030.
  • the touch display device 30 further includes a touch electrode driver 3040.
  • the touch electrode driver 3040 is used to drive a plurality of touch scan lines VCOM to provide touch scan signals to the touch structure 420, thereby enabling the touch structure 420 to perform corresponding touch operations.
  • the touch electrode driver 3040 includes a touch controller, and the touch electrode driver 340 causes the touch controller to apply a touch scan signal to the touch structure 420 under the control of, for example, a control signal provided by the timing controller 3020.
  • the touch electrode driver 3040 may be implemented as a semiconductor chip.
  • the touch display device 30 may also include other components, such as a signal decoding circuit, a voltage conversion circuit, etc. These components may, for example, adopt existing conventional components, which are not described in detail here.
  • At least one embodiment of the present disclosure further provides an electronic device that includes the touch display device provided by any embodiment of the present disclosure, for example, includes the touch display device 30 or the touch display device 50 in the foregoing embodiment.
  • FIG. 7 is a schematic block diagram of an electronic device provided by some embodiments of the present disclosure.
  • the electronic device 60 includes a touch display device 610.
  • the touch display device 610 may be the touch display device 50 shown in FIG. 5 or the touch display device 30 shown in FIG. .
  • the electronic device provided by the embodiment of the present disclosure may be any product with display function and touch function such as display substrate, display panel, electronic paper, mobile phone, tablet computer, television, monitor, notebook computer, digital photo frame, navigator, etc. Or components, the embodiment of the present disclosure does not limit this.

Abstract

一种用于触控显示装置（50）的触控驱动方法、触控显示装置（50）及电子设备，该触控驱动方法包括：在以逐行扫描的方式向触控显示装置（50）的显示结构施加显示数据的过程中，向触控显示装置（50）的触控结构施加周期性的触控扫描信号（TOUC）。显示结构与触控结构层叠，触控扫描信号（TOUC）的每个周期具有信号上升沿和信号下降沿，且触控扫描信号（TOUC）的至少一个周期的信号上升沿和信号下降沿分别位于对显示结构的不同行中同一颜色的显示子像素进行扫描的显示扫描周期内。该触控驱动方法可以减轻触控扫描信号（TOUC）的信号上升沿和信号下降沿对显示数据的耦合作用，从而减轻或避免触控扫描信号（TOUC）的信号上升沿和信号下降沿对显示画面造成的不良影响，例如避免显示画面出现水波纹现象。

Description

触控驱动方法、触控显示装置及电子设备 技术领域
本公开的实施例涉及一种触控驱动方法、触控显示装置及电子设备。
背景技术
随着显示技术的发展，各种类型的显示装置得到了越来越广泛的应用。这些显示装置能够为用户提供丰富多彩的画面和良好的视觉体验。显示装置主要包括液晶显示(Liquid Crystal Display,LCD)装置和有机发光二极管(Organic Light Emitting Diode,OLED)显示装置，例如可以应用到手机、电视机、笔记本电脑等多种具有显示功能的电子装置中，并且，基于用户对显示装置的不同需求，显示装置还可以同时兼顾例如触控等多种功能。
发明内容
本公开至少一个实施例提供一种用于触控显示装置的触控驱动方法，所述触控显示装置包括显示结构和与所述显示结构层叠的触控结构，所述方法包括：在以逐行扫描的方式向所述显示结构施加显示数据的过程中，向所述触控结构施加周期性的触控扫描信号，其中，所述触控扫描信号的每个周期具有信号上升沿和信号下降沿，且所述触控扫描信号的至少一个周期的信号上升沿和信号下降沿分别位于对所述显示结构的不同行中同一颜色的显示子像素进行扫描的显示扫描周期内。
例如，在本公开一实施例提供的触控驱动方法中，所述显示子像素排列为像素阵列，所述不同行中同一颜色的显示子像素在列方向上彼此相邻。
例如，在本公开一实施例提供的触控驱动方法中，所述显示子像素包括多个第一颜色子像素、多个第二颜色子像素和多个第三颜色子像素，在相邻的两行中，第一行显示子像素在行方向上以所述第一颜色子像素、所述第二颜色子像素、所述第三颜色子像素和所述第二颜色子像素的顺序循环排布，在所述相邻的两行中，第二行显示子像素在行方向上以所述第三颜色子像素、所述第二颜色子像素、所述第一颜色子像素和所述第二颜色子像素的顺序循 环排布。
例如，在本公开一实施例提供的触控驱动方法中，位于同一行的第一颜色子像素和第三颜色子像素在同一显示扫描周期内被扫描，所述第二颜色子像素的显示扫描周期与所述第一颜色子像素和所述第三颜色子像素的显示扫描周期彼此交替。
例如，在本公开一实施例提供的触控驱动方法中，所述显示子像素排列为像素阵列，所述不同行中同一颜色的显示子像素在行方向上彼此相邻且在列方向上彼此不相邻。
例如，在本公开一实施例提供的触控驱动方法中，所述显示子像素包括多个第一颜色子像素、多个第二颜色子像素和多个第三颜色子像素，每列显示子像素在列方向上以所述第一颜色子像素、所述第二颜色子像素和所述第三颜色子像素的顺序循环排布。
例如，在本公开一实施例提供的触控驱动方法中，所述第一颜色子像素为红色子像素，所述第二颜色子像素为绿色子像素，所述第三颜色子像素为蓝色子像素，或者所述第一颜色子像素为蓝色子像素，所述第二颜色子像素为绿色子像素，所述第三颜色子像素为红色子像素。
例如，在本公开一实施例提供的触控驱动方法中，在所述触控扫描信号的每个周期内，所述信号上升沿在所述信号下降沿之前，或者在所述触控扫描信号的每个周期内，所述信号下降沿在所述信号上升沿之前。
例如，在本公开一实施例提供的触控驱动方法中，所述触控扫描信号的频率为一个显示子像素的显示扫描周期对应的频率的1/2。
例如，在本公开一实施例提供的触控驱动方法中，在所述显示子像素的显示扫描周期内，所述显示数据在显示扫描信号的控制下被施加至所述显示子像素。
例如，在本公开一实施例提供的触控驱动方法中，所述触控结构响应于所述信号上升沿和所述信号下降沿以进行工作状态的切换。
例如，在本公开一实施例提供的触控驱动方法中，所述信号上升沿为所述触控扫描信号由第一电平变化为第二电平的阶段，所述信号下降沿为所述触控扫描信号由第二电平变化为第一电平的阶段，所述第二电平高于所述第一电平。
本公开至少一个实施例还提供一种触控显示装置，包括显示结构、触控结构和触控控制器，其中，所述显示结构与所述触控结构层叠设置，所述触控控制器配置为在所述显示结构被以逐行扫描的方式施加显示数据的过程中向所述触控结构施加周期性的触控扫描信号，所述触控扫描信号的每个周期具有信号上升沿和信号下降沿，且所述触控扫描信号的至少一个周期的信号上升沿和信号下降沿分别位于对所述显示结构的不同行中同一颜色的显示子像素进行扫描的显示扫描周期内。
例如，在本公开一实施例提供的触控显示装置中，所述显示子像素排列为像素阵列，所述不同行中同一颜色的显示子像素在列方向上彼此相邻。
例如，在本公开一实施例提供的触控显示装置中，所述显示子像素包括多个第一颜色子像素、多个第二颜色子像素和多个第三颜色子像素，在相邻的两行中，第一行显示子像素在行方向上以所述第一颜色子像素、所述第二颜色子像素、所述第三颜色子像素和所述第二颜色子像素的顺序循环排布，在所述相邻的两行中，第二行显示子像素在行方向上以所述第三颜色子像素、所述第二颜色子像素、所述第一颜色子像素和所述第二颜色子像素的顺序循环排布。
例如，在本公开一实施例提供的触控显示装置中，所述第一颜色子像素为红色子像素，所述第二颜色子像素为绿色子像素，所述第三颜色子像素为蓝色子像素，或者所述第一颜色子像素为蓝色子像素，所述第二颜色子像素为绿色子像素，所述第三颜色子像素为红色子像素。
例如，本公开一实施例提供的触控显示装置还包括显示控制器，其中，所述显示控制器配置为提供显示扫描信号以使所述显示数据被施加至所述显示子像素。
例如，在本公开一实施例提供的触控显示装置中，所述触控结构包括自电容式触控结构或互电容式触控结构。
例如，在本公开一实施例提供的触控显示装置中，所述触控结构和所述显示结构形成嵌入式结构或外挂式结构。
本公开至少一个实施例还提供一种电子设备，包括本公开任一实施例所述的触控显示装置。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本公开的一些实施例，而非对本公开的限制。
图1为本公开一些实施例提供的一种触控显示装置的显示子像素的排列方式的示意图；
图2A为本公开一些实施例提供的一种触控显示装置的信号施加电路的示意图；
图2B为本公开一些实施例提供的一种触控显示装置的信号施加电路的具体示例的示意图；
图3A为本公开一些实施例提供的一种触控显示装置的信号时序图；
图3B为本公开一些实施例提供的另一种触控显示装置的信号时序图；
图4为本公开一些实施例提供的另一种触控显示装置的显示子像素的排列方式的示意图；
图5为本公开一些实施例提供的一种触控显示装置的示意框图；
图6为本公开一些实施例提供的另一种触控显示装置的示意框图；以及
图7为本公开一些实施例提供的一种电子设备的示意框图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“一个”、“一”或者“该”等类似词语也不表示数量限制，而是表示存在至少一个。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物 件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
在通常的显示装置中，常采用多路复用器(Multiplexer，MUX)来将数据信号提供给各源信号线(数据线)，各源信号线与显示装置的子像素连接，由此可以使数据信号在显示装置的子像素的扫描周期内被写入子像素中，从而控制各子像素的发光亮度以实现画面的显示。而在兼具显示功能和触控功能的显示装置中，由于显示装置的触控层距离显示层往往较近，在显示装置执行触控操作时，施加至触控层的触控信号(例如触控扫描信号等)和向显示层的子像素提供的数据信号之间往往会产生耦合作用，从而导致施加至子像素的数据信号出现波动，难以被准确地写入子像素中，进而导致显示装置提供的画面容易出现显示异常，例如显示画面出现水波纹状的亮暗或色差条纹，由此对画面的显示效果造成严重的不良影响。
本公开至少一个实施例提供一种用于触控显示装置的触控驱动方法，该触控显示装置包括显示结构和与显示结构层叠的触控结构，该触控驱动方法包括：在以逐行扫描的方式向显示结构施加显示数据的过程中，向触控结构施加周期性的触控扫描信号。触控扫描信号的每个周期具有信号上升沿和信号下降沿，且触控扫描信号的至少一个周期的信号上升沿和信号下降沿分别位于对显示结构的不同行中同一颜色的显示子像素进行扫描的显示扫描周期内。
本公开实施例提供的触控驱动方法通过使触控扫描信号的每个周期的信号上升沿和信号下降沿均位于同一颜色的显示子像素的显示扫描周期内，可以减轻在显示子像素的显示扫描周期内触控扫描信号的信号上升沿和信号下降沿与显示数据之间的耦合作用，从而减轻或避免触控扫描信号的信号上升沿和信号下降沿对显示子像素的扫描阶段所产生的不良影响，由此避免显示画面出现显示异常，例如避免显示画面出现水波纹现象，使触控显示装置实现更优质的画面显示效果。
下面，将参考附图详细地说明本公开的实施例。应当注意的是，不同的 附图中相同的附图标记将用于指代已描述的相同的元件。
本公开一些实施例提供的一种触控驱动方法包括以下步骤。
步骤S10：在以逐行扫描的方式向显示结构施加显示数据的过程中，向触控结构施加周期性的触控扫描信号，触控扫描信号的至少一个周期的信号上升沿和信号下降沿分别位于对显示结构的不同行中同一颜色的显示子像素进行扫描的显示扫描周期内。
例如，本公开实施例提供的触控驱动方法可以用于包括显示结构和与该显示结构层叠的触控结构的触控显示装置。触控扫描信号的每个周期具有信号上升沿和信号下降沿，且触控扫描信号的至少一个周期的信号上升沿和信号下降沿分别位于对显示结构的不同行中同一颜色的显示子像素进行扫描的显示扫描周期内，例如触控扫描信号的每个周期的信号上升沿和信号下降沿均分别位于对显示结构的不同行中同一颜色的显示子像素进行扫描的显示扫描周期内。由此，本公开实施例提供的触控驱动方法可以减轻施加至触控结构的触控扫描信号的信号上升沿和信号下降沿在显示子像素的显示扫描周期内对施加至显示子像素的显示数据(例如前述的数据信号)的耦合作用，从而减轻触控扫描信号的信号上升沿和信号下降沿对显示子像素的扫描阶段所造成的不良影响，进而避免显示画面出现显示异常，例如避免显示画面出现水波纹现象，使触控显示装置的画面显示质量提升，并提供更优质的画面显示效果。
例如，在本公开的一些实施例中，显示子像素排列为像素阵列，不同行中同一颜色的显示子像素在列方向上彼此相邻，例如不同行中同一颜色的显示子像素位于相邻行中。
下面以图1所示的显示子像素的排列方式为例，对本公开实施例提供的触控驱动方法进行具体说明。
图1为本公开一些实施例提供的一种触控显示装置的显示子像素的排列方式的示意图。例如，采用图1中所示的显示子像素的排列方式的触控显示装置可以由本公开实施例提供的触控驱动方法进行驱动。
例如，如图1所示，显示子像素排列为像素阵列100。显示子像素包括多个第一颜色子像素R、多个第二颜色子像素G和多个第三颜色子像素B。在相邻的两行中，第一行显示子像素在行方向上以第一颜色子像素R、第二 颜色子像素G、第三颜色子像素B和第二颜色子像素G的顺序循环排布，第二行显示子像素在行方向上以第三颜色子像素B、第二颜色子像素G、第一颜色子像素R和第二颜色子像素G的顺序循环排布。例如，该像素阵列100为应用较为广泛的pentile像素排列。
需要说明的是，在本公开的说明中，位于同一行的显示子像素是指所包括的相应的像素电路在行方向上基本位于同一延伸线上的显示子像素，位于不同行的显示子像素是指所包括的相应的像素电路在行方向上位于两条不同延伸线上的显示子像素；位于同一列的显示子像素是指所包括的相应的像素电路在列方向上基本位于同一延伸线上的显示子像素，位于不同列的显示子像素是指所包括的相应的像素电路在列方向上位于两条不同延伸线上的显示子像素。该延伸线可以为直线，也可以为曲线，本公开的实施例对此不作限制。也即，在本公开的说明中，“位于同一行”是指显示子像素的像素电路位于同一行，“位于同一列”是指显示子像素的像素电路位于同一列，而非对例如显示子像素的整体区域或显示子像素的像素开口区域的位置的限制。
例如，在图1所示的情形中，第一颜色子像素R、第二颜色子像素G和第三颜色子像素B位于同一行中是指第一颜色子像素R的像素电路、第二颜色子像素G的像素电路、以及第三颜色子像素B的像素电路位于同一行中，也即第一颜色子像素R的像素电路、第二颜色子像素G的像素电路、以及第三颜色子像素B的像素电路在行方向上位于同一延伸线上。
需要说明的是，为了清楚、简洁，图1中并未具体示出显示子像素在实际排布中的相对位置，例如图1中并未示出显示子像素的像素开口区域在实际排布中的相对位置。例如，由于每个显示子像素的像素开口区域可能具有不同的形状，在显示子像素的实际排布中，每个显示子像素的像素开口区域的中心可以并不位于沿行方向的同一水平线或沿列方向的同一垂直线上。例如，可以是第一颜色子像素R的像素开口区域的中心和第三颜色子像素B的像素开口区域的中心位于沿行方向延伸的同一第一水平线上，第二颜色子像素G的像素开口区域的中心位于沿行方向延伸的同一第二水平线上，第一水平线和第二水平线在列方向上具有较小的间距，由此有利于显示子像素在行方向上的排布。显示子像素的像素开口区域的实际具体结构、排布位置等可以参考本领域中的常规设计，本公开的实施例对此不作限制。
图2A为本公开一些实施例提供的一种触控显示装置的信号施加电路的示意图，图3A为本公开一些实施例提供的一种触控显示装置的信号时序图。
例如，结合图1、图2A和图3A所示，位于同一行的第一颜色子像素R和第三颜色子像素B在同一显示扫描周期(例如第一显示扫描周期SCAN1)内被扫描，第二颜色子像素G的显示扫描周期(例如第二显示扫描周期SCAN2)与第一颜色子像素R和第三颜色子像素B的显示扫描周期彼此交替。在第一显示扫描周期SCAN1内，与第一颜色子像素R和第三颜色子像素B对应的显示数据CTDR和CTDB被写入第一颜色子像素R和第三颜色子像素B；在第二显示扫描周期SCAN2内，与第二颜色子像素G对应的显示数据CTDG被写入第二颜色子像素G。
例如，如图2A所示，触控显示装置的信号施加电路可以包括分路电路2，分路电路2例如为多路复用器(Multiplexer，MUX)电路。分路电路2包括多个分路子电路5，每个分路子电路5与两条数据线DL1和DL2连接，从而为像素阵列100中相邻的两列显示子像素提供相应的显示数据CTDR、CTDB或CTDG。数据线DL1和DL2通过分路电路2合并为一条源信号线SL(例如源信号线SL1和SL2)，从而实现了精简走线数量的目的。
例如，在第一显示扫描信号MUX1(也即第一分路控制信号)为有效电平时(也即在第一显示扫描周期SCAN1内)，显示数据CTDR和CTDB被提供至第一颜色子像素R和第三颜色子像素B；在第二显示扫描信号MUX2(也即第二分路控制信号)为有效电平时(也即在第二显示扫描周期SCAN2内)，显示数据CTDG被提供至第二颜色子像素G。这里，为了简化说明，仅示出了2个栅极扫描信号Gout1和Gout2，但是应当理解，栅极扫描信号的数量不限于此。
例如，图2B为本公开一些实施例提供的一种触控显示装置的信号施加电路的具体示例的示意图，例如图2B示出了图2A所示的触控显示装置的信号施加电路的一种具体示例。需要说明的是，图2B所示的触控显示装置的信号施加电路除输入电路1以外的其他结构均与图2A所示的触控显示装置的信号施加电路基本相同或相似，在此不再赘述。
例如，如图2B所示，触控显示装置的信号施加电路还包括输入电路1，输入电路1例如为单元检测(Cell Test，CT)电路，输入电路1包括多个输 入子电路4，多个输入子电路4和分路电路2的多个分路子电路5一一对应连接。
在显示数据写入过程中，每个输入子电路4会接收到显示数据CTDR、CTDB和CTDG，通过第一显示扫描信号MUX1、第二显示扫描信号MUX2、控制信号CTSWRB、CTSWBR、CTSWG以及栅极扫描信号Gout1和Gout2的控制，显示数据CTDR、CTDB和CTDG在对应的显示子像素的显示扫描周期内被写入对应的显示子像素，从而实现对每个显示子像素的独立控制以实现画面显示。
例如，行扫描阵列(例如GOA电路，图中未示出)使用一对时钟信号以及触发信号产生使阵列排列的显示子像素逐行依次开启的栅极扫描信号Gout1和Gout2。例如，以栅极扫描信号Gout1为例，当栅极扫描信号Gout 1为有效电平时，像素阵列100的相应的第一行显示子像素处于扫描阶段。此时，第一行显示子像素中每一个显示子像素的驱动晶体管的栅极会被写入对应的数据线DL1或DL2上的显示数据，显示数据的电压高低决定了相应的显示子像素的发光亮度。当像素阵列100对应的所有栅极扫描信号依次开启一次之后，栅极扫描信号Gout1会再次开启，以刷新第一行显示子像素的驱动晶体管的栅极的电压，如此循环，从而显示画面。
关于上述各个信号对该信号施加电路的具体控制方式可以参考常规设计，在此不再赘述。
例如，当该触控显示装置为液晶触控显示装置时，每个显示子像素例如包括像素电极和存储电容，显示数据(例如CTDR、CTDB和CTDG)在显示扫描周期内被写入像素电极，存储电容存储该显示数据并将像素电极的电位保持为与该显示数据对应的电位，由此使液晶分子偏转，显示子像素根据需要的灰阶发光。例如，当该触控显示装置为OLED触控显示装置时，每个显示子像素例如包括像素电路和OLED发光元件，该像素电路例如为通常的2T1C(即2个晶体管和1个存储电容)或具有补偿功能的电路，显示数据在显示扫描周期内被写入像素电路并存储在像素电路中，OLED发光元件在像素电路的驱动下根据需要的灰阶发光。例如，显示扫描周期为第一显示扫描信号MUX1和第二显示扫描信号MUX2的有效周期。关于显示数据的写入过程的详细说明可参考常规设计，此处不再详述。
例如，如图3A所示，触控扫描信号TOUC的每个周期的信号上升沿和信号下降沿均位于对第二颜色子像素G进行扫描的显示扫描周期内，例如位于第二显示扫描周期SCAN2内。由此，该触控扫描信号TOUC的信号上升沿和信号下降沿仅会在第二显示扫描周期SCAN2内对第二颜色子像素G的发光亮度产生轻微的影响，例如使第二颜色子像素G的发光亮度稍微变暗或变亮，而由于显示子像素的显示扫描周期频率非常快，因而在视觉上单一颜色的第二颜色子像素G的亮暗作用可以相互抵消，从而消除了水波纹现象。触控扫描信号TOUC的信号上升沿和信号下降沿不会在第一颜色子像素R和第三颜色子像素B的第一显示扫描周期SCAN1内与施加至第一颜色子像素R和第三颜色子像素B的显示数据之间产生耦合作用，从而避免触控扫描信号TOUC的信号上升沿和信号下降沿在第一颜色子像素R和第三颜色子像素B的扫描阶段对显示数据的不良影响。通过上述方式，可以避免触控显示装置提供的显示画面出现显示异常，例如避免显示画面出现由于施加至多种颜色子像素的显示数据受到影响而出现的水波纹现象，使触控显示装置可以提供更优质的画面显示效果。
例如，在第一颜色子像素R和第三颜色子像素B的第一显示扫描周期SCAN1内，对应第一颜色子像素R和第三颜色子像素B的显示数据在第一显示扫描信号MUX1的控制下分别被施加至第一颜色子像素R和第三颜色子像素B中，由此控制第一颜色子像素R和第三颜色子像素B的发光亮度。在第二颜色子像素G的第二显示扫描周期SCAN2内，对应第二颜色子像素G的显示数据在第二显示扫描信号MUX2的控制下被施加至第二颜色子像素G中，由此控制第二颜色子像素G发光的亮度。
需要说明的是，在图2A(或图2B)和图3A所示的实施例中，显示数据CTDR和CTDB在第一显示扫描信号MUX1的低电平的控制下被施加至第一颜色子像素R和第三颜色子像素B中，显示数据CTDG在第二显示扫描信号MUX2的低电平的控制下被施加至第二颜色子像素G中；而在本公开的其他一些实施例中，显示数据CTDR和CTDB也可以配置为在第一显示扫描信号MUX1的高电平的控制下被施加至第一颜色子像素R和第三颜色子像素B中，显示数据CTDG也可以配置为在第二显示扫描信号MUX2的高电平的控制下被施加至第二颜色子像素G中，本公开的实施例对此不作限 制。
例如，在第一颜色子像素R和第三颜色子像素B的第一显示扫描周期SCAN1内，对应于该第一颜色子像素R和第三颜色子像素B所在的显示子像素行的栅极扫描信号(例如对应于像素阵列100的第一行显示子像素的栅极扫描信号Gout1)同时被施加至第一颜色子像素R和第三颜色子像素B，以实现对第一颜色子像素R和第三颜色子像素B的扫描，从而实现显示数据CTDR和CTDB的写入；在第二颜色子像素G的第二显示扫描周期SCAN2内，对应于该第二颜色子像素G所在的显示子像素行的栅极扫描信号同时被施加至第二颜色子像素G，以实现对第二颜色子像素G的扫描，从而实现显示数据CTDG的写入。
例如，像素阵列100可以采用每行显示子像素依次施加对应的栅极扫描信号的方式实现对像素阵列100中的显示子像素的逐行扫描；或者，像素阵列100也可以采用隔行施加栅极扫描信号的顺序实现对像素阵列100中的显示子像素的扫描，例如对像素阵列100的奇数行或偶数行的显示子像素进行逐行扫描，本公开的实施例对此不作限制。
例如，栅极扫描信号可以由触控显示装置中的至少一个栅极驱动电路提供，从而实现对像素阵列100中的显示子像素的逐行扫描。例如，该栅极驱动电路可以采用通常的多个移位寄存器单元级联的形式，以输出一组移位信号作为栅极扫描信号。例如，栅极驱动电路可以设置在触控显示装置的阵列基板上以构成阵列基板栅极驱动(Gate Driver On Array，GOA)电路，或者也可以设置在阵列基板之外，例如通过柔性电路板等与阵列基板上的扫描线电连接，从而对像素阵列100中的显示子像素进行逐行扫描。例如，当采用栅极驱动电路驱动像素阵列100时，可以将该栅极驱动电路设置于触控显示装置的一侧。当然，还可以分别在触控显示装置的两侧设置该栅极驱动电路，以实现双边驱动。例如，可以在触控显示装置的一侧设置栅极驱动电路以用于实现对奇数行的显示子像素的扫描，而在触控显示装置的另一侧设置栅极驱动电路以用于实现对偶数行的显示子像素的扫描。
例如，在本公开实施例中，第一颜色子像素R可以为红色子像素，第二颜色子像素G可以为绿色子像素，第三颜色子像素B可以为蓝色子像素。而在本公开的其他一些实施例中，也可以是第一颜色子像素为蓝色子像素，第 二颜色子像素为绿色子像素，第三颜色子像素为红色子像素；或者，也可以是第一颜色子像素为蓝色子像素，第二颜色子像素为红色子像素，第三颜色子像素为绿色子像素等。本公开的实施例对第一颜色子像素、第二颜色子像素和第三颜色子像素的具体发光颜色不作限制，只要满足第一颜色子像素、第二颜色子像素和第三颜色子像素的发光颜色彼此不同即可。
例如，在本公开的其他一些实施例中，第一颜色子像素、第二颜色子像素和第三颜色子像素也可以为其他不同颜色的显示子像素；或者，显示子像素还可以包括第四颜色子像素，第四颜色子像素的发光颜色不同于第一颜色子像素、第二颜色子像素和第三颜色子像素的发光颜色。例如，第四颜色子像素可以与第一颜色子像素和第三颜色子像素在同一显示扫描周期(例如第一显示扫描周期SCAN1)内被扫描，或者第四颜色子像素的显示扫描周期也可以不同于第一颜色子像素和第三颜色子像素的显示扫描周期且不同于第二颜色子像素的显示扫描周期，本公开的实施例对此不作限制。
例如，如图3A所示，触控扫描信号TOUC的频率为一个显示子像素的显示扫描周期对应的频率的1/2，也即，触控扫描信号TOUC的频率为第一颜色子像素R和第三颜色子像素B的第一显示扫描周期SCAN1对应的频率的1/2，或为第二颜色子像素G的第二显示扫描周期SCAN2对应的频率的1/2。
需要说明的是，本公开实施例对触控扫描信号的频率与显示子像素的显示扫描周期对应的频率之间的关系不作限制。例如，在本公开的其他一些实施例中，触控扫描信号的频率也可以为一个显示子像素的显示扫描周期对应的频率的1/4、1/6或其他适合的数值等。
例如，如图3A所示，触控扫描信号TOUC的信号上升沿为触控扫描信号TOUC由第一电平变化为第二电平的阶段，触控扫描信号TOUC的信号下降沿为触控扫描信号TOUC由第二电平变化为第一电平的阶段，第二电平高于第一电平。例如，第一电平可以为低电平或接地电平，第二电平可以为高电平。
例如，如图3A所示，在触控扫描信号TOUC的每个周期内，信号上升沿在信号下降沿之前，此时，触控扫描信号TOUC的高电平为有效工作电平，也即在触控扫描信号TOUC为高电平时，触控显示装置执行相应的触控操作； 或者，在本公开的其他一些实施例中，也可以如图3B所示，在触控扫描信号TOUC的每个周期内，信号下降沿在信号上升沿之前，此时，触控扫描信号TOUC的低电平为有效工作电平，本公开的实施例对此不作限制。
例如，在本公开的一些实施例中，触控结构可以响应于触控扫描信号TOUC的信号上升沿和信号下降沿以进行工作状态的切换，进而执行例如周期性触控扫描操作。例如，触控扫描信号TOUC可以为触控结构进行触控检测过程中的任意信号，可以为施加至触控结构的触控电极中的触控扫描信号，也可以为来自触控结构的触控电极的触控感应信号，还可以为用于控制触控结构工作状态的使能信号等，本公开的实施例对此不作限制。
例如，在本公开的一些实施例中，触控结构可以包括自电容式触控结构或互电容式触控结构。例如，在触控结构采用自电容式触控结构的情形，触控结构可以响应于触控扫描信号TOUC的信号上升沿和信号下降沿以实现对触控位置的电容量变化的检测。例如，在触控结构采用互电容式触控结构的情形，触控结构可以响应于触控扫描信号TOUC的信号上升沿和信号下降沿以执行扫描和感测操作。
例如，在本公开的一些实施例中，触控结构和显示结构可以形成嵌入式(In-Cell)结构或外挂式(On-Cell)结构。
例如，在触控结构与显示结构形成On-Cell结构的情形，显示结构可以为通常的显示面板，例如液晶显示面板、OLED显示面板或QLED显示面板等，触控结构可以为触控层或触控面板。此时，显示结构例如可以包括阵列基板和与该阵列基板相对设置的对置基板，二者例如彼此结合以形成容纳液晶材料或OLED器件的空间。触控结构例如直接形成在对置基板上或贴合在对置基板上。
又例如，在触控结构与显示结构形成In-Cell结构的情形，显示结构可以为阵列基板，该阵列基板上设置有电致发光材料或液晶层等，触控结构可以为触控层。此时，触控结构设置在该阵列基板上，该阵列基板还可以包括多个功能膜层，这可以根据实际需求而定。关于触控结构和显示结构的结构形式，本公开的实施例对此不作限制。
需要说明的是，本公开的一些实施例提供的触控驱动方法可以应用于具有触控功能的OLED显示装置、QLED显示装置或液晶显示装置，或者也可 以应用于其他任意类型的具有触控功能的显示装置，本公开的实施例对此不作限制。
例如，本公开实施例提供的触控驱动方法可以应用于例如具有触控功能的柔性多层On-Cell(Flexible Multi-Layer On-Cell，FMLOC)显示装置等厚度较薄且边框较窄的触控显示装置中，由此可以使该类型的触控显示装置的光学显示效果得到进一步改善，从而提供更优质的显示画面。
例如，在本公开的一些实施例中，显示子像素排列为像素阵列，不同行中同一颜色的显示子像素在行方向上彼此相邻且在列方向上彼此不相邻，例如不同行中同一颜色的显示子像素位于不相邻行中且位于相邻列中。
图4为本公开一些实施例提供的另一种触控显示装置的显示子像素的排列方式的示意图。例如，采用图4中所示的显示子像素的排列方式的触控显示装置可以由本公开实施例提供的触控驱动方法进行驱动。该触控显示装置的触控驱动方法与包括图1中所示的像素阵列100的触控显示装置的触控驱动方法基本相同或相似，可以参考上述实施例中关于包括像素阵列100的触控显示装置的触控驱动方法的描述，在此不再赘述。
例如，如图4所示，显示子像素排列为像素阵列200。显示子像素包括多个第一颜色子像素R、多个第二颜色子像素G和多个第三颜色子像素B，每列显示子像素在列方向上以第一颜色子像素R、第二颜色子像素G和第三颜色子像素B的顺序循环排布。
例如，第一颜色子像素R可以为红色子像素，第二颜色子像素G可以为绿色子像素，第三颜色子像素B可以为蓝色子像素；或者，也可以是第一颜色子像素为蓝色子像素，第二颜色子像素为绿色子像素，第三颜色子像素为红色子像素。或者，第一颜色子像素、第二颜色子像素和第三颜色子像素还可以分别为其他不同颜色的子像素，本公开的实施例对第一颜色子像素、第二颜色子像素和第三颜色子像素的具体发光颜色不作限制，只要满足第一颜色子像素、第二颜色子像素和第三颜色子像素的发光颜色彼此不同即可。
需要说明的是，在本公开的说明中，位于同一行的显示子像素是指所包括的相应的像素电路在行方向上基本位于同一延伸线上的显示子像素，位于不同行的显示子像素是指所包括的相应的像素电路在行方向上位于两条不同延伸线上的显示子像素；位于同一列的显示子像素是指所包括的相应的像素 电路在列方向上基本位于同一延伸线上的显示子像素，位于不同列的显示子像素是指所包括的相应的像素电路在列方向上位于两条不同延伸线上的显示子像素。该延伸线可以为直线，也可以为曲线，本公开的实施例对此不作限制。也即，在本公开的说明中，“位于同一行”是指显示子像素的像素电路位于同一行，“位于同一列”是指显示子像素的像素电路位于同一列，而非对例如显示子像素的整体区域或显示子像素的像素开口区域的位置的限制。
例如，在图4所示的情形中，第一颜色子像素R、第二颜色子像素G和第三颜色子像素B位于同一列中是指第一颜色子像素R的像素电路、第二颜色子像素G的像素电路、以及第三颜色子像素B的像素电路位于同一列中，也即第一颜色子像素R的像素电路、第二颜色子像素G的像素电路、以及第三颜色子像素B的像素电路在列方向上位于同一延伸线上。
需要说明的是，为了清楚、简洁，图4中并未具体示出显示子像素在实际排布中的相对位置，例如图4中并未示出显示子像素的像素开口区域在实际排布中的相对位置。例如，由于每个显示子像素的像素开口区域可能具有不同的形状，在显示子像素的实际排布中，每个显示子像素的像素开口区域的中心可以并不位于沿行方向的同一水平线或沿列方向的同一垂直线上。例如，可以是第一颜色子像素R的像素开口区域的中心和第三颜色子像素B的像素开口区域的中心位于沿列方向延伸的同一第一垂直线上，第二颜色子像素G的像素开口区域的中心位于沿列方向延伸的同一第二垂直线上，第一垂直线和第二垂直线在行方向上具有较小的间距，由此有利于显示子像素在列方向上的排布。显示子像素的像素开口区域的实际具体结构、排布位置等可以参考本领域中的常规设计，本公开的实施例对此不作限制。
例如，在本公开的其他一些实施例中，显示子像素还可以包括第四颜色子像素，第四颜色子像素的发光颜色不同于第一颜色子像素、第二颜色子像素和第三颜色子像素的发光颜色，本公开的实施例对此不作限制。
需要说明的是，本公开实施例提供的触控驱动方法也可以应用于采用其他显示子像素的排列方式的触控显示装置中，本公开实施例对此不作限制。
本公开至少一个实施例还提供一种触控显示装置，该触控显示装置包括显示结构、触控结构和触控控制器。显示结构与触控结构层叠设置，触控控制器配置为在显示结构被以逐行扫描的方式施加显示数据的过程中向触控结 构施加周期性的触控扫描信号，触控扫描信号的每个周期具有信号上升沿和信号下降沿，且触控扫描信号的至少一个周期的信号上升沿和信号下降沿分别位于对显示结构的不同行中同一颜色的显示子像素进行扫描的显示扫描周期内。
本公开实施例提供的触控显示装置通过使施加至触控结构的触控扫描信号的至少一个周期，例如每个周期的信号上升沿和信号下降沿均位于同一颜色的显示子像素的显示扫描周期内，可以减轻在显示子像素的显示扫描周期内触控扫描信号的信号上升沿和信号下降沿与施加至显示结构的显示数据之间的耦合作用，从而减轻或避免触控扫描信号的信号上升沿和信号下降沿对显示子像素的扫描阶段所产生的不良影响，由此避免显示画面出现显示异常，例如避免显示画面出现水波纹现象，使触控显示装置实现更优质的画面显示效果。
图5为本公开一些实施例提供的一种触控显示装置的示意框图。例如，如图5所示，该触控显示装置50包括显示结构510、触控结构520和触控控制器540。显示结构510与触控结构520层叠设置，触控控制器540配置为在显示结构510被以逐行扫描的方式施加显示数据的过程中向触控结构520施加周期性的触控扫描信号，触控扫描信号的每个周期具有信号上升沿和信号下降沿，且触控扫描信号的至少一个周期，例如每个周期的信号上升沿和信号下降沿分别位于对显示结构510的不同行中同一颜色的显示子像素进行扫描的显示扫描周期内。
例如，在图5所示的触控显示装置50中，显示子像素排列为像素阵列，不同行中同一颜色的显示子像素在列方向上彼此相邻，例如位于相邻行中，该像素阵列例如为图1所示的像素阵列100。
例如，在图5所示的触控显示装置50中，显示结构510的显示子像素包括多个第一颜色子像素、多个第二颜色子像素和多个第三颜色子像素。在相邻的两行中，第一行显示子像素在行方向上以第一颜色子像素、第二颜色子像素、第三颜色子像素和第二颜色子像素的顺序循环排布，第二行显示子像素在行方向上以第三颜色子像素、第二颜色子像素、第一颜色子像素和第二颜色子像素的顺序循环排布。例如，可以参照图1所示的像素阵列100中显示子像素的排列方式。
例如，在图5所示的触控显示装置50中，第一颜色子像素为红色子像素，第二颜色子像素为绿色子像素，第三颜色子像素为蓝色子像素；或者，第一颜色子像素为蓝色子像素，第二颜色子像素为绿色子像素，第三颜色子像素为红色子像素。
例如，在图5所示的触控显示装置50中，该触控显示装置50还包括显示控制器530，该显示控制器530配置为提供显示扫描信号以使显示数据被施加至显示子像素。例如，该显示控制器530可以提供前述的第一显示扫描信号MUX1和第二显示扫描信号MUX2。
例如，在图5所示的触控显示装置50中，触控结构520包括自电容式触控结构或互电容式触控结构。
例如，在图5所示的触控显示装置50中，触控结构520和显示结构510形成嵌入式(In-Cell)结构或外挂式(On-Cell)结构。
例如，触控控制器540和显示控制器530可以实现为任意适用的电路或芯片，也可以实现为软件、硬件和固件的结合，本公开的实施例对此不作限制。
例如，在图5所示的触控显示装置50中，该触控显示装置50还包括控制器550，该控制器550可以用于协调显示控制器530和触控控制器540的操作，以使触控显示装置50兼顾显示功能以及触控功能。例如，控制器550可以实现为任意适用的电路或芯片，也可以实现为软件、硬件和固件的结合，本公开的实施例对此不作限制。
例如，本公开实施例提供的触控显示装置的功能或技术效果等可以参考上述实施例中关于包括像素阵列100的触控显示装置和包括像素阵列200的触控显示装置的相应描述。
图6为本公开一些实施例提供的一种触控显示装置的示意框图。例如，如图6所示，触控显示装置30包括显示结构410和触控结构420，显示结构410包括显示子像素P。例如，显示子像素P可以排列为如图1所示的像素阵列100或如图4所示的像素阵列200。
需要说明的是，在触控显示装置30中，显示结构410与触控结构420层叠设置，在图6中为了便于示出信号连接关系，显示结构410和触控结构420采用同一线框进行表示。
例如，触控显示装置30可以为液晶面板、液晶电视、显示器、OLED面板、OLED电视、电子纸显示装置、手机、平板电脑、笔记本电脑、数码相框、导航仪等任何具有显示功能及触控功能的产品或部件，本公开的实施例对此不作限制。触控显示装置30的技术效果可以参考上述实施例中关于包括像素阵列100的触控显示装置和包括像素阵列200的触控显示装置的相应描述，在此不再赘述。
例如，触控显示装置30还包括栅极驱动器3010、定时控制器3020和数据驱动器3030。栅极驱动器3010用于驱动多条扫描线GL以提供栅极扫描信号；数据驱动器3030用于驱动多条数据线DL以提供显示数据(数据信号)，例如数据驱动器3030包括显示控制器，数据信号在显示控制器提供的显示扫描信号的控制下被提供至多条数据线DL；定时控制器3020用于处理从触控显示装置30外部输入的图像数据RGB，向数据驱动器3030提供处理的图像数据RGB以及向栅极驱动器3010和数据驱动器3030输出扫描控制信号GCS和数据控制信号DCS，以对栅极驱动器3010和数据驱动器3030进行控制。
例如，栅极驱动器3010与多条扫描线GL对应连接。多条扫描线GL与排列为多行的显示子像素P对应连接。栅极驱动器3010依序输出栅极扫描信号到多条扫描线GL，以使显示结构410中的多行显示子像素P实现逐行扫描。例如，栅极驱动器3010可以实现为半导体芯片，也可以集成在例如触控显示装置30的衬底基板上以构成GOA电路。
例如，数据驱动器3030使用参考伽玛电压根据源自定时控制器3020的多个数据控制信号DCS将从定时控制器3020输入的数字图像数据RGB转换成数据信号。例如，转换的数据信号在显示控制器提供的显示扫描信号的控制下被提供至多条数据线DL。例如，数据驱动器3030可以实现为半导体芯片。
例如，定时控制器3020对外部输入的图像数据RGB进行处理以匹配显示结构410的大小和分辨率，然后向数据驱动器3030提供处理后的图像数据。定时控制器3020使用从触控显示装置30外部输入的同步信号(例如点时钟DCLK、数据使能信号DE、水平同步信号Hsync以及垂直同步信号Vsync)产生多条扫描控制信号GCS和多条数据控制信号DCS。定时控制器3020分别向栅极驱动器3010和数据驱动器3030提供产生的扫描控制信号GCS和数 据控制信号DCS，以用于栅极驱动器3010和数据驱动器3030的控制。
例如，触控显示装置30还包括触控电极驱动器3040。触控电极驱动器3040用于驱动多条触控扫描线VCOM以向触控结构420提供触控扫描信号，由此使触控结构420执行相应的触控操作。例如，触控电极驱动器3040包括触控控制器，触控电极驱动器340在定时控制器3020提供的例如控制信号的控制下，使触控控制器向触控结构420施加触控扫描信号。例如，触控电极驱动器3040可以实现为半导体芯片。
需要说明的是，该触控显示装置30还可以包括其他部件，例如信号解码电路、电压转换电路等，这些部件例如可以采用已有的常规部件，在此不再详述。
本公开至少一个实施例还提供一种电子设备，该电子设备包括本公开任一实施例提供的触控显示装置，例如包括上述实施例中的触控显示装置30或触控显示装置50。
图7为本公开一些实施例提供的一种电子设备的示意框图。例如，如图7所示，电子设备60包括触控显示装置610，例如该触控显示装置610可以为图5中所示的触控显示装置50或图6中所示的触控显示装置30。
本公开实施例提供的电子设备的结构、功能及技术效果等可以参考上述本公开实施例提供的触控显示装置以及触控驱动方法中的相应描述，在此不再赘述。
例如，本公开实施例提供的电子设备可以为显示基板、显示面板、电子纸、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能以及触控功能的产品或部件，本公开的实施例对此不作限制。
有以下几点需要说明：
(1)本公开实施例附图只涉及到本公开实施例涉及到的结构，其他结构可参考通常设计。
(2)在不冲突的情况下，本公开的实施例及实施例中的特征可以相互组合以得到新的实施例。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (20)

  1. 一种用于触控显示装置的触控驱动方法，所述触控显示装置包括显示结构和与所述显示结构层叠的触控结构，所述方法包括：
    在以逐行扫描的方式向所述显示结构施加显示数据的过程中，向所述触控结构施加周期性的触控扫描信号，
    其中，所述触控扫描信号的每个周期具有信号上升沿和信号下降沿，且所述触控扫描信号的至少一个周期的信号上升沿和信号下降沿分别位于对所述显示结构的不同行中同一颜色的显示子像素进行扫描的显示扫描周期内。
  2. 根据权利要求1所述的触控驱动方法，其中，所述显示子像素排列为像素阵列，所述不同行中同一颜色的显示子像素在列方向上彼此相邻。
  3. 根据权利要求2所述的触控驱动方法，其中，所述显示子像素包括多个第一颜色子像素、多个第二颜色子像素和多个第三颜色子像素，
    在相邻的两行中，第一行显示子像素在行方向上以所述第一颜色子像素、所述第二颜色子像素、所述第三颜色子像素和所述第二颜色子像素的顺序循环排布，
    在所述相邻的两行中，第二行显示子像素在行方向上以所述第三颜色子像素、所述第二颜色子像素、所述第一颜色子像素和所述第二颜色子像素的顺序循环排布。
  4. 根据权利要求3所述的触控驱动方法，其中，位于同一行的第一颜色子像素和第三颜色子像素在同一显示扫描周期内被扫描，
    所述第二颜色子像素的显示扫描周期与所述第一颜色子像素和所述第三颜色子像素的显示扫描周期彼此交替。
  5. 根据权利要求1所述的触控驱动方法，其中，所述显示子像素排列为像素阵列，所述不同行中同一颜色的显示子像素在行方向上彼此相邻且在列方向上彼此不相邻。
  6. 根据权利要求5所述的触控驱动方法，其中，所述显示子像素包括多个第一颜色子像素、多个第二颜色子像素和多个第三颜色子像素，
    每列显示子像素在列方向上以所述第一颜色子像素、所述第二颜色子像素和所述第三颜色子像素的顺序循环排布。
  7. 根据权利要求3-4、6任一所述的触控驱动方法，其中，所述第一颜色子像素为红色子像素，所述第二颜色子像素为绿色子像素，所述第三颜色子像素为蓝色子像素，或者
    所述第一颜色子像素为蓝色子像素，所述第二颜色子像素为绿色子像素，所述第三颜色子像素为红色子像素。
  8. 根据权利要求1-7任一所述的触控驱动方法，其中，在所述触控扫描信号的每个周期内，所述信号上升沿在所述信号下降沿之前，或者
    在所述触控扫描信号的每个周期内，所述信号下降沿在所述信号上升沿之前。
  9. 根据权利要求1-8任一所述的触控驱动方法，其中，所述触控扫描信号的频率为一个显示子像素的显示扫描周期对应的频率的1/2。
  10. 根据权利要求1-9任一所述的触控驱动方法，其中，在所述显示子像素的显示扫描周期内，所述显示数据在显示扫描信号的控制下被施加至所述显示子像素。
  11. 根据权利要求1-10任一所述的触控驱动方法，其中，所述触控结构响应于所述信号上升沿和所述信号下降沿以进行工作状态的切换。
  12. 根据权利要求1-11任一所述的触控驱动方法，其中，所述信号上升沿为所述触控扫描信号由第一电平变化为第二电平的阶段，所述信号下降沿为所述触控扫描信号由第二电平变化为第一电平的阶段，所述第二电平高于所述第一电平。
  13. 一种触控显示装置，包括显示结构、触控结构和触控控制器，
    其中，所述显示结构与所述触控结构层叠设置，
    所述触控控制器配置为在所述显示结构被以逐行扫描的方式施加显示数据的过程中向所述触控结构施加周期性的触控扫描信号，
    所述触控扫描信号的每个周期具有信号上升沿和信号下降沿，且所述触控扫描信号的至少一个周期的信号上升沿和信号下降沿分别位于对所述显示结构的不同行中同一颜色的显示子像素进行扫描的显示扫描周期内。
  14. 根据权利要求13所述的触控显示装置，其中，所述显示子像素排列为像素阵列，所述不同行中同一颜色的显示子像素在列方向上彼此相邻。
  15. 根据权利要求14所述的触控显示装置，其中，所述显示子像素包括 多个第一颜色子像素、多个第二颜色子像素和多个第三颜色子像素，
    在相邻的两行中，第一行显示子像素在行方向上以所述第一颜色子像素、所述第二颜色子像素、所述第三颜色子像素和所述第二颜色子像素的顺序循环排布，
    在所述相邻的两行中，第二行显示子像素在行方向上以所述第三颜色子像素、所述第二颜色子像素、所述第一颜色子像素和所述第二颜色子像素的顺序循环排布。
  16. 根据权利要求15所述的触控显示装置，其中，所述第一颜色子像素为红色子像素，所述第二颜色子像素为绿色子像素，所述第三颜色子像素为蓝色子像素，或者
    所述第一颜色子像素为蓝色子像素，所述第二颜色子像素为绿色子像素，所述第三颜色子像素为红色子像素。
  17. 根据权利要求13-16任一所述的触控显示装置，还包括显示控制器，
    其中，所述显示控制器配置为提供显示扫描信号以使所述显示数据被施加至所述显示子像素。
  18. 根据权利要求13-17任一所述的触控显示装置，其中，所述触控结构包括自电容式触控结构或互电容式触控结构。
  19. 根据权利要求13-18任一所述的触控显示装置，其中，所述触控结构和所述显示结构形成嵌入式结构或外挂式结构。
  20. 一种电子设备，包括如权利要求13-19任一所述的触控显示装置。
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