WO2021223266A1 - 一种时序控制器、显示面板及其驱动方法 - Google Patents

一种时序控制器、显示面板及其驱动方法 Download PDF

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Publication number
WO2021223266A1
WO2021223266A1 PCT/CN2020/091077 CN2020091077W WO2021223266A1 WO 2021223266 A1 WO2021223266 A1 WO 2021223266A1 CN 2020091077 W CN2020091077 W CN 2020091077W WO 2021223266 A1 WO2021223266 A1 WO 2021223266A1
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Prior art keywords
sub
pixel
pixels
normal display
gray
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PCT/CN2020/091077
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English (en)
French (fr)
Inventor
肖光星
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Tcl华星光电技术有限公司
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Priority to US16/771,167 priority Critical patent/US11514870B2/en
Publication of WO2021223266A1 publication Critical patent/WO2021223266A1/zh

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Classifications

    • 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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/36—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 by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • 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
    • 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
    • G09G2310/0291—Details of output amplifiers or buffers arranged for use in a driving circuit
    • 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
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/0457—Improvement of perceived resolution by subpixel rendering
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data
    • 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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/36—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 by control of light from an independent source using liquid crystals
    • G09G3/3607—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 by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels

Definitions

  • This application relates to the field of display technology, and in particular to a timing controller, a display panel and a driving method thereof.
  • the LCD panel is a display that is widely used in various fields, and the display is mainly realized by modulating the intensity of the light field of the backlight source through the liquid crystal switch.
  • the liquid crystal display panel applies a voltage corresponding to a predetermined gradation value to each pixel of the screen, and is provided with a thin film transistor for applying a voltage corresponding to the gradation value to each pixel.
  • the source of the thin film transistor of a column of pixels of the screen is connected to a signal line (data line), and the signal line is used to transmit a driving signal to the thin film transistor of each pixel.
  • dummy pixels are usually placed outside the display area. pixel).
  • problems such as poor display such as bright lines may appear on the outside of the display area.
  • the present application provides a timing controller, a display panel and a driving method thereof, which can solve the problem of poor display of virtual sub-pixels in the display panel.
  • the present application provides a timing controller for driving a display panel.
  • the display panel includes a normal display sub-pixel and a dummy sub-pixel.
  • the normal display sub-pixel includes a plurality of columns of first sub-pixels and second sub-pixels arranged in sequence.
  • a pixel and a third sub-pixel, the dummy sub-pixel is located on one side of the normal display sub-pixel and is adjacent to the first sub-pixel in the first column;
  • the timing controller includes:
  • the buffer unit is used to buffer the gray level information of one line of the normal display sub-pixels
  • the histogram generating unit is configured to generate a histogram of the first sub-pixel and the third sub-pixel in a row of the normal display sub-pixels according to the grayscale information buffered by the buffer unit, and the histogram reflects a row of the normal display sub-pixel.
  • the gray-scale comparison unit is used to obtain the gray-scale information of the two adjacent first sub-pixels in a row of the normal display sub-pixels that are close to the virtual sub-pixel from the buffer unit, and to compare the two Comparing the gray scale information of the first sub-pixel;
  • the virtual sub-pixel driving unit is configured to drive the virtual sub-pixel. According to the comparison result of the gray-scale comparison unit, if the gray-scale information of the two first sub-pixels is the same, the driving signal of the virtual sub-pixel is It is consistent with the driving signal of the third sub-pixel close to the virtual sub-pixel; otherwise, the driving signal of the virtual sub-pixel is the same as the driving signal of the third sub-pixel with the largest count in the histogram generating unit The signals are consistent.
  • the histogram generating unit includes:
  • a first obtaining subunit configured to obtain grayscale information of the first subpixel and the third subpixel from the buffer unit
  • a generating subunit is configured to generate a histogram according to the grayscale information in the first obtaining subunit.
  • the gray scale comparison unit includes:
  • a second acquiring subunit configured to acquire grayscale information of two adjacent first sub-pixels that are close to the virtual sub-pixel in a row of the normal display sub-pixels from the buffer unit;
  • the comparison subunit compares the grayscale information of the two first subpixels obtained by the second obtaining subunit.
  • the virtual sub-pixel driving unit includes:
  • a third obtaining subunit configured to obtain, from the timing controller, the driving signal value of the third subpixel with the largest number counted in the histogram generating unit;
  • the driving sub-unit is configured to drive the virtual sub-pixel according to the driving signal value obtained by the third obtaining sub-unit.
  • the third acquiring sub-unit obtains from at least The driving signal value of the third sub-pixel of which one gray-scale value is randomly obtained from the two gray-scale values.
  • the present application also provides a method for driving a display panel, using the timing controller as described above.
  • the display panel includes normal display sub-pixels and dummy sub-pixels, and the normal display sub-pixels include a plurality of first columns arranged in sequence.
  • Sub-pixels, second sub-pixels, and third sub-pixels, the dummy sub-pixels are located on one side of the normal display sub-pixels and are adjacent to the first sub-pixels in the first column; the driving method includes the following steps:
  • Step S10 buffer the gray level information of one line of the normal display sub-pixels
  • Step S20 Generate a histogram of a row of the first sub-pixel and the third sub-pixel in the normal display sub-pixel according to the buffered gray level information of the normal display sub-pixel, and the histogram reflects the row of the normal display sub-pixel.
  • Step S30 Obtain gray-scale information of two adjacent first sub-pixels that are close to the virtual sub-pixel in a row of the normal display sub-pixels, and compare the gray-scale information of the two first sub-pixels ;
  • Step S40 If the grayscale information of the two first sub-pixels is the same, the driving signal of the dummy sub-pixel is consistent with the driving signal of the third sub-pixel close to the dummy sub-pixel; otherwise, the The driving signal of the virtual sub-pixel is consistent with the driving signal of the third sub-pixel with the largest number counted in the histogram.
  • step S20 first obtain the gray-scale information of the first sub-pixel and the third sub-pixel from the gray-scale information of the normal display sub-pixel of one row in the buffer, and then The histogram is generated according to grayscale information of the first sub-pixel and the third sub-pixel.
  • the driving signal of the virtual sub-pixel where the corresponding row is located is the same as that of the virtual sub-pixel close to the virtual sub-pixel.
  • the driving signals of the third sub-pixels are consistent; otherwise, the driving signals of the virtual sub-pixels where the corresponding rows are located are consistent with the driving signals of the third sub-pixels with the largest number counted in the histogram.
  • the third sub-pixel with one gray-scale value is randomly obtained The drive signal value.
  • the present application also provides a display device, including a display panel and the timing controller as described above, the display panel includes a display area, and the display panel includes a plurality of data lines and a plurality of scan lines corresponding to the display area.
  • the display panel further includes a source driver, and the timing controller is electrically connected to the source driver;
  • the display panel further includes normal display sub-pixels and dummy sub-pixels electrically connected to a plurality of the data lines.
  • the normal display sub-pixels include a plurality of columns of first sub-pixels, second sub-pixels, and third sub-pixels arranged in sequence.
  • a sub-pixel, the dummy sub-pixel is located on one side of the normal display sub-pixel and is adjacent to the first sub-pixel in the first column.
  • the beneficial effects of the present application are: the timing controller, the display panel and the driving method thereof provided in the present application, by setting the drive signal of the virtual sub-pixel of the display panel to be close to the third sub-pixel (blue sub-pixel) ) Is consistent with the drive signal; or, the drive signal of the virtual sub-pixel is set to be consistent with the drive signal of the third sub-pixel counted in the histogram, so as to solve the problem of poor display of the virtual sub-pixel in the display panel .
  • FIG. 1 is a schematic structural diagram of a display panel provided by an embodiment of the application.
  • FIG. 2 is a schematic diagram of a timing controller provided by an embodiment of the application.
  • FIG. 3 is a schematic diagram of a histogram provided by an embodiment of this application.
  • FIG. 4 is a flowchart of a driving method of a display panel provided by an embodiment of the application.
  • the present application addresses the technical problem of poor display of virtual sub-pixels in the existing display panel, and this embodiment can solve this defect.
  • FIG. 1 it is a schematic structural diagram of a display panel provided by an embodiment of this application.
  • the display panel includes a display area 10 and a non-display area 20 located at the periphery of the display area 10.
  • the display panel corresponding to the display area 10 includes a plurality of data lines (Dx ⁇ Dn) and a plurality of scan lines.
  • the display panel also includes a gate driver (not shown), a source driver 201, and a timing controller 202.
  • the timing controller 202 is electrically connected to the source driver 201 and the gate driver, respectively, for providing driving signals for the source driver 201 and the gate driver.
  • the source driver 201 is electrically connected to a plurality of the data lines
  • the gate driver is electrically connected to a plurality of the scan lines.
  • the display panel further includes normal display sub-pixels 101 and dummy sub-pixels 102 electrically connected to a plurality of the data lines.
  • the normal display sub-pixels 101 include a plurality of columns of first sub-pixels 101a and second sub-pixels 101a and second sub-pixels arranged in sequence.
  • the pixel 101b and the third sub-pixel 101c wherein the first sub-pixel 101a is a red sub-pixel, the second sub-pixel 101b is a green sub-pixel, and the third sub-pixel 101c is a blue sub-pixel.
  • the dummy sub-pixel 102 is located at one side of the normal display sub-pixel 101 and is arranged adjacent to the first sub-pixel 101a in the first column.
  • the display panel is provided with only one row of the virtual sub-pixels 102, but it is not limited to this.
  • the timing controller is used to drive the display panel, and the timing controller includes: a buffer unit 30, a histogram generating unit 40, a grayscale comparison unit 50, and a virtual sub-pixel driving unit 60.
  • the buffer unit 30 is used to buffer one line of grayscale information of the normal display sub-pixel 101, wherein the buffer unit 30 is a dynamic buffer, and the buffer unit 30 dynamically buffers according to the progressive scan of the scan line.
  • the histogram generating unit 40 is configured to generate a histogram of the first sub-pixel 101a and the third sub-pixel 101c in the normal display sub-pixel 101 of the corresponding row according to the grayscale information buffered by the buffer unit 30 .
  • the histogram generating unit 40 includes:
  • the first obtaining subunit 401 is configured to obtain the grayscale information of the first subpixel 101a and the third subpixel 101c from the buffer unit 30.
  • the generating subunit 402 is configured to generate a histogram according to the grayscale information in the first obtaining subunit 401, where the histogram is used to reflect the first The number of the sub-pixel 101a and the third sub-pixel 101c under different gray scale values.
  • FIG. 3 it is a schematic diagram of a histogram provided by an embodiment of this application.
  • the abscissa is the grayscale value
  • the ordinate is the number of sub-pixels.
  • the grayscale value 0-255 is divided into 5 intervals.
  • the data in the histogram is only used as an example and not as a limitation.
  • the interval division of the grayscale values can be determined according to actual conditions.
  • the gray-scale comparison unit 50 is configured to obtain gray-scale information of two adjacent first sub-pixels 101a in a row of the normal display sub-pixel 101 that are close to the virtual sub-pixel 102 from the buffer unit 30, And compare the grayscale information of the two first sub-pixels.
  • the gray scale comparison unit 50 includes:
  • the second acquiring sub-unit 501 is configured to acquire the grayscale information of the two adjacent first sub-pixels 101a in the normal display sub-pixel 101 that are close to the virtual sub-pixel 102 from the buffer unit 30 of one row.
  • the comparison subunit 502 compares the grayscale information of the two first subpixels 101a obtained by the second obtaining subunit 501.
  • the virtual sub-pixel driving unit 60 is configured to drive the virtual sub-pixel 102. According to the comparison result of the gray-scale comparison unit 50, if the gray-scale information of the two first sub-pixels 101a is the same, then the virtual The driving signal of the sub-pixel 102 is consistent with the driving signal of the third sub-pixel 101a close to the virtual sub-pixel 102; otherwise, the driving signal of the virtual sub-pixel 102 is the same as the number counted in the histogram generating unit 40 The driving signals of the most third sub-pixels 101a are the same.
  • the virtual sub-pixel driving unit 60 includes:
  • the third obtaining subunit 601 is configured to obtain, from the timing controller, the driving signal value of the third sub-pixel 101a with the largest number counted in the histogram generating unit 40;
  • the driving sub-unit 602 is configured to drive the virtual sub-pixel 102 according to the driving signal value obtained by the third obtaining sub-unit 601.
  • the third obtaining sub-unit 601 obtains from The driving signal value of the third sub-pixel 101a for which one gray-scale value is randomly obtained among at least two gray-scale values.
  • the drive signal of the virtual sub-pixel of the display panel is set to be consistent with the drive signal of the third sub-pixel (blue sub-pixel) close to the virtual sub-pixel; or, the drive signal of the virtual sub-pixel is set to be consistent with the histogram
  • the driving signals of the third sub-pixel with the largest number of statistics are consistent, so that the problem of poor display of the rightmost or leftmost virtual sub-pixel in the display panel can be solved.
  • the present application also provides a driving method of the above-mentioned display panel. As shown in FIG. 1 to FIG. 4, the driving method includes the following steps:
  • step S10 the gray level information of one line of the normal display sub-pixels is cached.
  • the buffer unit 30 caches the gray level information of the first row of the normal display sub-pixels 101.
  • Step S20 Generate a histogram of a row of the first sub-pixel and the third sub-pixel in the normal display sub-pixel according to the buffered gray level information of the normal display sub-pixel, and the histogram reflects the row of the normal display sub-pixel.
  • the first obtaining sub-unit 401 obtains the grayscale information of the first sub-pixel 101a and the third sub-pixel 101c from the buffer unit 30.
  • the generating sub-unit 402 generates histograms of the first sub-pixel 101a and the third sub-pixel 101c according to the grayscale information in the first obtaining sub-unit 401.
  • the histogram reflects the number (number) of the first sub-pixel 101a and the third sub-pixel 101c in the first row of sub-pixels under different grayscale values.
  • Step S30 Obtain gray-scale information of two adjacent first sub-pixels that are close to the virtual sub-pixel in a row of the normal display sub-pixels, and compare the gray-scale information of the two first sub-pixels .
  • the second obtaining sub-unit 501 obtains two adjacent ones of the virtual sub-pixels 102 close to the first row from the gray-scale information of the first row of the normal display sub-pixel 101 buffered by the buffer unit 30
  • the grayscale information of the first sub-pixel 101a that is, the first column of sub-pixels and the fourth column of sub-pixels that are close to the virtual sub-pixel 102 in the normal display sub-pixel 101.
  • the comparison subunit 502 compares the grayscale information of the two first subpixels 101a acquired by the second acquisition subunit 501.
  • Step S40 If the grayscale information of the two first sub-pixels is the same, the driving signal of the dummy sub-pixel is consistent with the driving signal of the third sub-pixel close to the dummy sub-pixel; otherwise, the The driving signal of the virtual sub-pixel is consistent with the driving signal of the third sub-pixel with the largest number counted in the histogram.
  • the gray scale value of the third sub-pixel 101c will affect the The correlation between the charging time of the data of the first sub-pixel 101a can be found through statistical histograms, that is, the gray level of the first sub-pixel 101a is similar to the gray level of the adjacent first sub-pixel 101a, then They are the most similar.
  • step S40 when the grayscale information of the two first sub-pixels 101a is not the same, the driving signal value of the third sub-pixel 101c with the largest count in the histogram is obtained, and the The timing controller 202 drives the virtual sub-pixel 102 according to the driving signal value.
  • the third obtaining subunit 601 obtains the driving signal value of the third sub-pixel 101c with the largest number counted in the histogram generating unit 40; the driving subunit 602 according to the third obtaining subunit The driving signal value obtained in 601 drives the virtual sub-pixel 102.
  • the driving signal of the virtual sub-pixel 102 where the corresponding row is located is the same as that of the third sub-pixel close to the virtual sub-pixel 102.
  • the driving signals of the sub-pixels 101c are consistent; otherwise, the driving signals of the virtual sub-pixels 102 where the corresponding rows are located are consistent with the driving signals of the third sub-pixels 101c with the largest number counted in the histogram.
  • the third sub-pixel with a gray-scale value is randomly obtained The drive signal value of the pixel 101c.
  • the present application also provides a display device, which includes a display panel and the above-mentioned timing controller.
  • the display panel includes a display area 10, and corresponding to the display area 10, the display panel includes a plurality of data lines (Dx ⁇ Dn) and a plurality of scan lines (not shown), so
  • the display panel further includes a source driver 201, and the timing controller 202 is electrically connected to the source driver 201.
  • the display panel further includes normal display sub-pixels 101 and dummy sub-pixels 102 electrically connected to a plurality of the data lines.
  • the normal display sub-pixels 101 include a plurality of columns of first sub-pixels 101a and second sub-pixels 101a and second sub-pixels arranged in sequence.
  • the dummy sub-pixel 102 is located on one side of the normal display sub-pixel 101 and is adjacent to the first sub-pixel 101a in the first column.
  • the drive signal of the virtual sub-pixel of the display panel is set to be consistent with the drive signal of the third sub-pixel (blue sub-pixel) close to the virtual sub-pixel; or, the drive signal of the virtual sub-pixel is set to be consistent with the histogram
  • the driving signals of the third sub-pixel with the largest number of statistics are consistent, so that the problem of poor display of the rightmost or leftmost virtual sub-pixel in the display panel can be solved.

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  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
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Abstract

一种时序控制器、显示面板及其驱动方法，显示面板包括正常显示子像素(101)与虚拟子像素(102)，正常显示子像素(101)包括第一子像素(101a)、第二子像素(101b)以及第三子像素(101c)。对正常显示子像素(101)中靠近虚拟子像素(102)的相邻两个第一子像素(101a)的灰阶信息进行比较；若灰阶信息相同，则虚拟子像素(102)的驱动信号与靠近虚拟子像素(102)的第三子像素(101c)的驱动信号一致；否则，虚拟子像素(102)的驱动信号与直方图中统计的数量最多的第三子像素(101c)的驱动信号一致。

Description

一种时序控制器、显示面板及其驱动方法
本申请要求于2020年5月7日提交中国专利局、申请号为202010379134.4、发明名称为“一种时序控制器、显示面板及其驱动方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域，尤其涉及一种时序控制器、显示面板及其驱动方法。
 背景技术
LCD面板是一种被广泛应用于各种领域的显示器，主要是通过液晶开关调制背光源光场强度来实现画面显示。液晶显示面板对画面的各像素施加与规定的灰度值相对应的电压，配置有用于对各像素施加与灰度值相对应的电压的薄膜晶体管。通常，画面的一列像素的薄膜晶体管的源极与一个信号线(数据线)连接，信号线用于向各像素的薄膜晶体管传输驱动信号。此外，通常会在显示区域的外侧配置虚拟像素(Dummy pixel)。然而，如果对虚拟像素的驱动信号配置不当或存在误差，会在显示区域的外侧出现亮线等显示不良的问题。
因此，现有技术存在缺陷，急需改进。
 技术问题
本申请提供一种时序控制器、显示面板及其驱动方法，能够解决显示面板中虚拟子像素出现的显示不良的问题。
 技术解决方案
为解决上述问题，本申请提供的技术方案如下：
本申请提供一种时序控制器，用于驱动显示面板，所述显示面板包括正常显示子像素与虚拟子像素，所述正常显示子像素包括多列依次排布的第一子像素、第二子像素以及第三子像素，所述虚拟子像素位于所述正常显示子像素的一侧并与第一列所述第一子像素相邻；所述时序控制器包括：
缓存单元，用于缓存一行所述正常显示子像素的灰阶信息；
直方图生成单元，用于根据所述缓存单元缓存的灰阶信息生成一行所述正常显示子像素中所述第一子像素与所述第三子像素的直方图，所述直方图反映一行所述正常显示子像素中所述第一子像素与所述第三子像素在不同灰阶值下的数量；
灰阶比较单元，用于从所述缓存单元中获取一行所述正常显示子像素中靠近所述虚拟子像素的相邻两个所述第一子像素的灰阶信息，并用于对两个所述第一子像素的灰阶信息进行比较；
虚拟子像素驱动单元，用于驱动所述虚拟子像素，根据所述灰阶比较单元的比较结果，若两个所述第一子像素的灰阶信息相同，则所述虚拟子像素的驱动信号与靠近所述虚拟子像素的所述第三子像素的驱动信号一致；否则，所述虚拟子像素的驱动信号与所述直方图生成单元中统计的数量最多的所述第三子像素的驱动信号一致。
在本申请的时序控制器中，所述直方图生成单元包括：
第一获取子单元，用于从所述缓存单元中获取所述第一子像素与所述第三子像素的灰阶信息；
生成子单元，用于根据所述第一获取子单元中的所述灰阶信息生成直方图。
在本申请的时序控制器中，所述灰阶比较单元包括：
第二获取子单元，用于从所述缓存单元中获取一行所述正常显示子像素中靠近所述虚拟子像素的相邻两个所述第一子像素的灰阶信息；
比较子单元，对所述第二获取子单元获取的两个所述第一子像素的灰阶信息进行比较。
在本申请的时序控制器中，所述虚拟子像素驱动单元包括：
第三获取子单元，用于从所述时序控制器中获取所述直方图生成单元中统计的数量最多的所述第三子像素的驱动信号值；
驱动子单元，用于根据所述第三获取子单元获取的驱动信号值驱动所述虚拟子像素。
在本申请的时序控制器中，若所述直方图生成单元中有至少两个灰阶值内的所述第三子像素的数量相等且为最多时，则所述第三获取子单元从至少两个所述灰阶值中随机获取一个灰阶值的所述第三子像素的驱动信号值。
本申请还提供一种显示面板的驱动方法，使用如上所述的时序控制器，所述显示面板包括正常显示子像素与虚拟子像素，所述正常显示子像素包括多列依次排布的第一子像素、第二子像素以及第三子像素，所述虚拟子像素位于所述正常显示子像素的一侧并与第一列所述第一子像素相邻；所述驱动方法包括以下步骤：
步骤S10，缓存一行所述正常显示子像素的灰阶信息；
步骤S20，根据缓存的所述正常显示子像素的灰阶信息生成一行所述正常显示子像素中所述第一子像素与所述第三子像素的直方图，所述直方图反映一行所述正常显示子像素中所述第一子像素与所述第三子像素在不同灰阶值下的数量；
步骤S30，获取一行所述正常显示子像素中靠近所述虚拟子像素的相邻两个所述第一子像素的灰阶信息，并对两个所述第一子像素的灰阶信息进行比较；
步骤S40，若两个所述第一子像素的灰阶信息相同，则所述虚拟子像素的驱动信号与靠近所述虚拟子像素的所述第三子像素的驱动信号一致；否则，所述虚拟子像素的驱动信号与所述直方图中统计的数量最多的所述第三子像素的驱动信号一致。
本申请的驱动方法中，在所述步骤S20中，先从缓存的一行所述正常显示子像素的灰阶信息中获取所述第一子像素与所述第三子像素的灰阶信息，再根据所述第一子像素与所述第三子像素的灰阶信息生成所述直方图。
本申请的驱动方法中，在所述步骤S40中，若两个所述第一子像素的灰阶信息相同，则对应行所在的所述虚拟子像素的驱动信号与靠近所述虚拟子像素的所述第三子像素的驱动信号一致；否则，对应行所在的所述虚拟子像素的驱动信号与所述直方图中统计的数量最多的所述第三子像素的驱动信号一致。
本申请的驱动方法中，若所述直方图中有至少两个灰阶值内的所述第三子像素的数量相等且为最多时，则随机获取一个灰阶值的所述第三子像素的驱动信号值。
本申请还提供一种显示装置，包括显示面板和如上所述的时序控制器，所述显示面板包括显示区，所述显示面板对应所述显示区包括多条数据线和多条扫描线，所述显示面板还包括源极驱动器，所述时序控制器与所述源极驱动器电连接；
所述显示面板还包括与多条所述数据线电连接的正常显示子像素与虚拟子像素，所述正常显示子像素包括多列依次排布的第一子像素、第二子像素以及第三子像素，所述虚拟子像素位于所述正常显示子像素的一侧并与第一列所述第一子像素相邻。
 有益效果
本申请的有益效果为：本申请提供的时序控制器、显示面板及其驱动方法，通过将显示面板的虚拟子像素的驱动信号设置成与靠近虚拟子像素的第三子像素（蓝色子像素）的驱动信号一致；或者，将虚拟子像素的驱动信号设置成与直方图中统计的数量最多的第三子像素的驱动信号一致，从而能够解决显示面板中虚拟子像素出现的显示不良的问题。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的显示面板的结构示意图；
图2为本申请实施例提供的时序控制器的示意图；
图3为本申请一种实施例提供的直方图示意图；
图4为本申请实施例提供的显示面板的驱动方法流程图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。在图中，结构相似的单元是用以相同标号表示。
本申请针对现有的显示面板中虚拟子像素出现的显示不良的技术问题，本实施例能够解决该缺陷。
如图1所示，为本申请实施例提供的显示面板的结构示意图。所述显示面板包括显示区10以及位于所述显示区10外围的非显示区20，所述显示面板对应所述显示区10包括多条数据线（Dx~Dn）和多条扫描线，所述显示面板还包括栅极驱动器（未图示）、源极驱动器201和时序控制器202。所述时序控制器202分别与所述源极驱动器201以及所述栅极驱动器电连接，用于为所述源极驱动器201以及所述栅极驱动器提供驱动信号。所述源极驱动器201与多条所述数据线电连接，所述栅极驱动器与多条所述扫描线电连接。
所述显示面板还包括与多条所述数据线电连接的正常显示子像素101与虚拟子像素102，所述正常显示子像素101包括多列依次排布的第一子像素101a、第二子像素101b以及第三子像素101c，其中，所述第一子像素101a为红色子像素，所述第二子像素101b为绿色子像素，所述第三子像素101c为蓝色子像素。所述虚拟子像素102位于所述正常显示子像素101的一侧并与第一列所述第一子像素101a相邻设置。
在本实施例中，所述显示面板仅设置一列所述虚拟子像素102，但并不以此为限。
结合图2所示，为本申请实施例提供的时序控制器的结构示意图。时序控制器用于驱动显示面板，所述时序控制器包括：缓存单元30、直方图生成单元40、灰阶比较单元50、虚拟子像素驱动单元60。
所述缓存单元30用于缓存一行所述正常显示子像素101的灰阶信息，其中，所述缓存单元30为动态缓存，根据所述扫描线的逐行扫描，所述缓存单元30动态的缓存每一行所述正常显示子像素101的灰阶信息。
所述直方图生成单元40用于根据所述缓存单元30缓存的灰阶信息生成相应行的所述正常显示子像素101中所述第一子像素101a与所述第三子像素101c的直方图。
其中，所述直方图生成单元40包括：
第一获取子单元401，用于从所述缓存单元30中获取所述第一子像素101a与所述第三子像素101c的灰阶信息。
生成子单元402，用于根据所述第一获取子单元401中的所述灰阶信息生成直方图，其中，所述直方图用于反映在一行所述正常显示子像素101中所述第一子像素101a与所述第三子像素101c在不同灰阶值下的数量。
结合图3所示，为本申请一种实施例提供的直方图示意图。图中，横坐标为灰阶值，纵坐标为子像素的数量值，图中将灰阶值0-255划分为5个区间，分别统计一行正常显示子像素中所述第一子像素101a与所述第三子像素101c在不同灰阶区间内的数量。需要说明的是，该直方图中的数据仅用作举例说明，不作为限定，另外，灰阶值的区间划分可根据实际情况而定。
所述灰阶比较单元50用于从所述缓存单元30中获取一行所述正常显示子像素101中靠近所述虚拟子像素102的相邻两个所述第一子像素101a的灰阶信息，并对两个所述第一子像素的灰阶信息进行比较。
其中，所述灰阶比较单元50包括：
第二获取子单元501，用于从一行所述缓存单元30中获取所述正常显示子像素101中靠近所述虚拟子像素102的相邻两个所述第一子像素101a的灰阶信息。
比较子单元502，对所述第二获取子单元501获取的两个所述第一子像素101a的灰阶信息进行比较。
所述虚拟子像素驱动单元60用于驱动所述虚拟子像素102，根据所述灰阶比较单元50的比较结果，若两个所述第一子像素101a的灰阶信息相同，则所述虚拟子像素102的驱动信号与靠近所述虚拟子像素102的所述第三子像素101a的驱动信号一致；否则，所述虚拟子像素102的驱动信号与所述直方图生成单元40中统计的数量最多的所述第三子像素101a的驱动信号一致。
其中，所述虚拟子像素驱动单元60包括：
第三获取子单元601，用于从所述时序控制器中获取所述直方图生成单元40中统计的数量最多的所述第三子像素101a的驱动信号值；
驱动子单元602，用于根据所述第三获取子单元601获取的驱动信号值驱动所述虚拟子像素102。
在一种实施例中，若所述直方图生成单元40中有至少两个灰阶值内的所述第三子像素101a的数量相等且为最多时，则所述第三获取子单元601从至少两个所述灰阶值中随机获取一个灰阶值的所述第三子像素101a的驱动信号值。
本申请通过将显示面板的虚拟子像素的驱动信号设置成与靠近虚拟子像素的第三子像素（蓝色子像素）的驱动信号一致；或者，将虚拟子像素的驱动信号设置成与直方图中统计的数量最多的第三子像素的驱动信号一致，从而能够解决显示面板中最右边或最左边的虚拟子像素出现的显示不良的问题。
本申请还提供了上述显示面板的驱动方法，结合图1~图4所示，所述驱动方法包括以下步骤：
步骤S10，缓存一行所述正常显示子像素的灰阶信息。
以图1中第一行子像素为例，当所述扫描线扫描第一行子像素时，所述缓存单元30缓存第一行所述正常显示子像素101的灰阶信息。
步骤S20，根据缓存的所述正常显示子像素的灰阶信息生成一行所述正常显示子像素中所述第一子像素与所述第三子像素的直方图，所述直方图反映一行所述正常显示子像素中所述第一子像素与所述第三子像素在不同灰阶值下的数量。
其中，所述第一获取子单元401从所述缓存单元30中获取所述第一子像素101a与所述第三子像素101c的灰阶信息。所述生成子单元402根据所述第一获取子单元401中的所述灰阶信息生成所述第一子像素101a与所述第三子像素101c的直方图。所述直方图反映出第一行子像素中所述第一子像素101a与所述第三子像素101c在不同灰阶值下的数量（个数）。
步骤S30，获取一行所述正常显示子像素中靠近所述虚拟子像素的相邻两个所述第一子像素的灰阶信息，并对两个所述第一子像素的灰阶信息进行比较。
其中，所述第二获取子单元501从所述缓存单元30缓存的第一行所述正常显示子像素101的灰阶信息中获取靠近第一行的所述虚拟子像素102的相邻两个所述第一子像素101a的灰阶信息，即所述正常显示子像素101中靠近所述虚拟子像素102的第一列子像素和第四列子像素。所述比较子单元502对所述第二获取子单元501获取的两个所述第一子像素101a的灰阶信息进行比较。
步骤S40，若两个所述第一子像素的灰阶信息相同，则所述虚拟子像素的驱动信号与靠近所述虚拟子像素的所述第三子像素的驱动信号一致；否则，所述虚拟子像素的驱动信号与所述直方图中统计的数量最多的所述第三子像素的驱动信号一致。
其中，因为所述第一子像素101a和所述第三子像素101c是连接在一个所述源极驱动器201上即一条通道上，因此所述第三子像素101c的灰阶值会影响所述第一子像素101a数据的充电时间，通过统计直方图，可以找出它们的相关性，即所述第一子像素101a的灰阶与邻近的所述第一子像素101a的灰阶相近，则它们相似度最高。
在所述步骤S40中，当两个所述第一子像素101a的灰阶信息不相同时，获取所述直方图中统计的数量最多的所述第三子像素101c的驱动信号值，所述时序控制器202根据所述驱动信号值驱动所述虚拟子像素102。
其中，所述第三获取子单元601获取所述直方图生成单元40中统计的数量最多的所述第三子像素101c的驱动信号值；所述驱动子单元602根据所述第三获取子单元601获取的驱动信号值驱动所述虚拟子像素102。
在所述步骤S40中，若两个所述第一子像素101a的灰阶信息相同，则对应行所在的所述虚拟子像素102的驱动信号与靠近所述虚拟子像素102的所述第三子像素101c的驱动信号一致；否则，对应行所在的所述虚拟子像素102的驱动信号与所述直方图中统计的数量最多的所述第三子像素101c的驱动信号一致。
在一种实施例中，若所述直方图中有至少两个灰阶值内的所述第三子像素101c的数量相等且为最多时，则随机获取一个灰阶值的所述第三子像素101c的驱动信号值。
本申请还提供一种显示装置，其包括显示面板和上述时序控制器。结合图1和图2所示，所述显示面板包括显示区10，所述显示面板对应所述显示区10包括多条数据线（Dx~Dn）和多条扫描线（未图示），所述显示面板还包括源极驱动器201，所述时序控制器202与所述源极驱动器201电连接。
所述显示面板还包括与多条所述数据线电连接的正常显示子像素101与虚拟子像素102，所述正常显示子像素101包括多列依次排布的第一子像素101a、第二子像素101b以及第三子像素101c，所述虚拟子像素102位于所述正常显示子像素101的一侧并与第一列所述第一子像素101a相邻。
其中，所述显示面板具体结构请参照上述实施例中对显示面板的描述，此处不再赘述。
本申请通过将显示面板的虚拟子像素的驱动信号设置成与靠近虚拟子像素的第三子像素（蓝色子像素）的驱动信号一致；或者，将虚拟子像素的驱动信号设置成与直方图中统计的数量最多的第三子像素的驱动信号一致，从而能够解决显示面板中最右边或最左边的虚拟子像素出现的显示不良的问题。
综上所述，虽然本申请已以优选实施例揭露如上，但上述优选实施例并非用以限制本申请，本领域的普通技术人员，在不脱离本申请的精神和范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为准。

Claims (10)

  1. 一种时序控制器，用于驱动显示面板，其中，所述显示面板包括正常显示子像素与虚拟子像素，所述正常显示子像素包括多列依次排布的第一子像素、第二子像素以及第三子像素，所述虚拟子像素位于所述正常显示子像素的一侧并与第一列所述第一子像素相邻；所述时序控制器包括：
    缓存单元，用于缓存一行所述正常显示子像素的灰阶信息；
    直方图生成单元，用于根据所述缓存单元缓存的灰阶信息生成一行所述正常显示子像素中所述第一子像素与所述第三子像素的直方图，所述直方图反映一行所述正常显示子像素中所述第一子像素与所述第三子像素在不同灰阶值下的数量；
    灰阶比较单元，用于从所述缓存单元中获取一行所述正常显示子像素中靠近所述虚拟子像素的相邻两个所述第一子像素的灰阶信息，并用于对两个所述第一子像素的灰阶信息进行比较；
    虚拟子像素驱动单元，用于驱动所述虚拟子像素，根据所述灰阶比较单元的比较结果，若两个所述第一子像素的灰阶信息相同，则所述虚拟子像素的驱动信号与靠近所述虚拟子像素的所述第三子像素的驱动信号一致；否则，所述虚拟子像素的驱动信号与所述直方图生成单元中统计的数量最多的所述第三子像素的驱动信号一致。
  2. 根据权利要求1所述的时序控制器，其中，所述直方图生成单元包括：
    第一获取子单元，用于从所述缓存单元中获取所述第一子像素与所述第三子像素的灰阶信息；
    生成子单元，用于根据所述第一获取子单元中的所述灰阶信息生成直方图。
  3. 根据权利要求1所述的时序控制器，其中，所述灰阶比较单元包括：
    第二获取子单元，用于从所述缓存单元中获取一行所述正常显示子像素中靠近所述虚拟子像素的相邻两个所述第一子像素的灰阶信息；
    比较子单元，对所述第二获取子单元获取的两个所述第一子像素的灰阶信息进行比较。
  4. 根据权利要求2所述的时序控制器，其中，所述虚拟子像素驱动单元包括：
    第三获取子单元，用于从所述时序控制器中获取所述直方图生成单元中统计的数量最多的所述第三子像素的驱动信号值；
    驱动子单元，用于根据所述第三获取子单元获取的驱动信号值驱动所述虚拟子像素。
  5. 根据权利要求4所述的时序控制器，其中，若所述直方图生成单元中有至少两个灰阶值内的所述第三子像素的数量相等且为最多时，则所述第三获取子单元从至少两个所述灰阶值中随机获取一个灰阶值的所述第三子像素的驱动信号值。
  6. 一种显示面板的驱动方法，使用如权利要求1所述的时序控制器，其中，所述显示面板包括正常显示子像素与虚拟子像素，所述正常显示子像素包括多列依次排布的第一子像素、第二子像素以及第三子像素，所述虚拟子像素位于所述正常显示子像素的一侧并与第一列所述第一子像素相邻；所述驱动方法包括以下步骤：
    步骤S10，缓存一行所述正常显示子像素的灰阶信息；
    步骤S20，根据缓存的所述正常显示子像素的灰阶信息生成一行所述正常显示子像素中所述第一子像素与所述第三子像素的直方图，所述直方图反映一行所述正常显示子像素中所述第一子像素与所述第三子像素在不同灰阶值下的数量；
    步骤S30，获取一行所述正常显示子像素中靠近所述虚拟子像素的相邻两个所述第一子像素的灰阶信息，并对两个所述第一子像素的灰阶信息进行比较；
    步骤S40，若两个所述第一子像素的灰阶信息相同，则所述虚拟子像素的驱动信号与靠近所述虚拟子像素的所述第三子像素的驱动信号一致；否则，所述虚拟子像素的驱动信号与所述直方图中统计的数量最多的所述第三子像素的驱动信号一致。
  7. 根据权利要求6所述的驱动方法，其中，在所述步骤S20中，先从缓存的一行所述正常显示子像素的灰阶信息中获取所述第一子像素与所述第三子像素的灰阶信息，再根据所述第一子像素与所述第三子像素的灰阶信息生成所述直方图。
  8. 根据权利要求6所述的驱动方法，其中，在所述步骤S40中，若两个所述第一子像素的灰阶信息相同，则对应行所在的所述虚拟子像素的驱动信号与靠近所述虚拟子像素的所述第三子像素的驱动信号一致；否则，对应行所在的所述虚拟子像素的驱动信号与所述直方图中统计的数量最多的所述第三子像素的驱动信号一致。
  9. 根据权利要求8所述的驱动方法，其中，若所述直方图中有至少两个灰阶值内的所述第三子像素的数量相等且为最多时，则随机获取一个灰阶值的所述第三子像素的驱动信号值。
  10. 一种显示装置，其中，包括显示面板和如权利要求1所述的时序控制器，所述显示面板包括显示区，所述显示面板对应所述显示区包括多条数据线和多条扫描线，所述显示面板还包括源极驱动器，所述时序控制器与所述源极驱动器电连接；
    所述显示面板还包括与多条所述数据线电连接的正常显示子像素与虚拟子像素，所述正常显示子像素包括多列依次排布的第一子像素、第二子像素以及第三子像素，所述虚拟子像素位于所述正常显示子像素的一侧并与第一列所述第一子像素相邻。
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