WO2019205441A1 - 显示画面的调整方法 - Google Patents

显示画面的调整方法 Download PDF

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Publication number
WO2019205441A1
WO2019205441A1 PCT/CN2018/105654 CN2018105654W WO2019205441A1 WO 2019205441 A1 WO2019205441 A1 WO 2019205441A1 CN 2018105654 W CN2018105654 W CN 2018105654W WO 2019205441 A1 WO2019205441 A1 WO 2019205441A1
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Prior art keywords
pixels
column
vertical line
data signal
source driver
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PCT/CN2018/105654
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English (en)
French (fr)
Inventor
徐枫程
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深圳市华星光电技术有限公司
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Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US16/309,449 priority Critical patent/US11100826B2/en
Publication of WO2019205441A1 publication Critical patent/WO2019205441A1/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
    • G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
    • 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
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2074—Display of intermediate tones using sub-pixels
    • 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]
    • 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
    • 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
    • G09G2300/0443—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations
    • 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
    • G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
    • 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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0285—Improving the quality of display appearance using tables for spatial correction of 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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0693—Calibration of display systems

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a method for adjusting a display screen.
  • a flat panel display device such as a liquid crystal display (LCD) or an organic light-emitting diode (OLED) display has gradually replaced a cathode ray tube (CRT) display device.
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • CRT cathode ray tube
  • the liquid crystal display device has many advantages such as thin body, power saving, no radiation, and the like, and has been widely used.
  • the liquid crystal display panel comprises a color filter (CF) substrate, a thin film transistor (TFT) array substrate, a liquid crystal (LC) sandwiched between the color filter substrate and the thin film transistor array substrate, and a sealant.
  • the working principle of the liquid crystal display panel is to place liquid crystal molecules in two parallel glass substrates. There are many vertical and horizontal small wires between the two glass substrates, and the liquid crystal molecules are controlled to change direction by energizing or not, and the light of the backlight module is changed. Refracted to produce a picture.
  • the OLED generally includes a substrate, an anode disposed on the substrate, a Hole Inject Layer (HIL) disposed on the anode, and a Hole Transport Layer (HTL) disposed on the hole injection layer.
  • HIL Hole Inject Layer
  • HTL Hole Transport Layer
  • a light-emitting layer disposed on the hole transport layer
  • an electron transport layer ETL
  • EIL electron injection layer
  • the cathode on the layer.
  • the principle of luminescence of OLED display devices is that semiconductor materials and organic luminescent materials are driven by electric fields, causing luminescence by carrier injection and recombination.
  • an OLED display device generally uses an indium tin oxide pixel electrode and a metal electrode as anodes and cathodes of the device, respectively. Under a certain voltage, electrons and holes are injected from the cathode and the anode to the electron transport layer and the hole transport layer, respectively. The electrons and holes migrate to the light-emitting layer through the electron transport layer and the hole transport layer, respectively, and meet in the light-emitting layer to form excitons and excite the light-emitting molecules, and the latter emits visible light through radiation relaxation.
  • the mura compensation (demura) scheme is often used to solve the display defect of the display panel, but it is limited by the precision of the demura, and the problem of the vertical line defect including the vertical light line defect and the vertical bright line defect cannot be used with the existing demura. Machine to solve.
  • the so-called vertical light line defect means that a column of pixels on the panel has a lower brightness than the two columns of pixels adjacent thereto, resulting in a vertical light line.
  • the so-called vertical bright line defect means that a column of pixels on the panel has a higher brightness than two columns of pixels adjacent thereto, resulting in a vertical bright line. The presence of poor vertical lines seriously affects the display quality of the panel.
  • An object of the present invention is to provide a method for adjusting a display screen, which can eliminate a vertical line defect of a display screen and improve display quality.
  • the present invention provides a method for adjusting a display screen, including the following steps:
  • Step S1 providing a display device
  • the display device includes a display panel, a source driver electrically connected to the display panel, and a timing controller electrically connected to the source driver;
  • the display panel includes a plurality of pixels arranged in an array, and the source driver and the source driver Multiple pixels are electrically connected;
  • Step S2 The timing controller provides a data signal to the source driver, so that the source driver outputs the same data signal voltage to the plurality of pixels, drives the display panel display screen, and the vertical line defect in the screen displayed by the display panel is performed;
  • Step S3 acquiring a coordinate of a vertical line defect in the screen displayed on the display panel and a type of the vertical line defect;
  • Step S4 The timing controller adjusts the grayscale value of the data signal of the column of pixels of the corresponding pixel array in the corresponding pixel array in the corresponding pixel array that is out of the vertical line, so that the source driver outputs the column to the column.
  • the data signal voltage of the pixel changes so that the brightness of the column of pixels changes to the same brightness of the two columns of pixels adjacent to the column of pixels.
  • the type of the vertical line defect is a poor vertical line
  • the timing controller increases the grayscale value of the data signal of one column of pixels in the corresponding pixel array in the corresponding pixel array according to the type of the vertical line defect, and the output of the vertical pixel is poor.
  • the data signal voltage that causes the source driver to output to the column of pixels is increased, increasing the brightness of the column of pixels to the same brightness of the two columns of pixels adjacent to the column of pixels.
  • the type of the vertical line defect is a poor vertical line
  • the timing controller reduces the grayscale value of the data signal of one column of pixels in the coordinates of the vertical line that is in the corresponding pixel array according to the type of the vertical line defect is a vertical bright line defect.
  • the data signal voltage that causes the source driver to output to the column of pixels is reduced, so that the brightness of the column of pixels is reduced to the same brightness of the two columns of pixels adjacent to the column of pixels.
  • step S3 the display panel is detected by the timing controller, and the coordinates of the vertical line in the screen displayed by the display panel and the type of the vertical line defect are obtained.
  • step S3 the display panel is detected by an external computer, and the coordinates of the vertical line in the screen displayed by the display panel and the type of the vertical line defect are acquired and transmitted to the timing controller.
  • the step S4 further includes: storing, by the timing controller, an adjustment value of adjusting a grayscale value of a data signal of a column of pixels of the corresponding pixel array in the corresponding pixel array.
  • the liquid crystal display device further includes a storage unit electrically connected to the timing controller, and the storage unit is configured to store a data signal of a column of pixels of the corresponding pixel array corresponding to the vertical line in the corresponding pixel array output by the timing controller The adjustment value of the grayscale value to be adjusted.
  • Each of the pixels includes a plurality of sub-pixels arranged in sequence; the display panel further includes a plurality of columns of data lines respectively connected to the plurality of columns of sub-pixels, wherein the plurality of columns of data lines are all connected to the source driver.
  • the source driver outputs the same data signal voltage to be outputted to the sub-pixels of the plurality of pixels via the plurality of data lines.
  • the timing controller adjusts the grayscale value of the data signal of a column of pixels of the corresponding pixel array in the corresponding pixel array that is in the vertical pixel, so that the source driver is output through the corresponding multiple data lines.
  • the data signal voltages of the plurality of columns of sub-pixels of the column of pixels change such that the brightness of the plurality of columns of sub-pixels of the column of pixels changes to the same brightness of the sub-pixels of the two columns of pixels adjacent to the column of pixels.
  • the invention also provides a method for adjusting a display screen, comprising the following steps:
  • Step S1 providing a display device
  • the display device includes a display panel, a source driver electrically connected to the display panel, and a timing controller electrically connected to the source driver;
  • the display panel includes a plurality of pixels arranged in an array, and the source driver and the source driver Multiple pixels are electrically connected;
  • Step S2 The timing controller provides a data signal to the source driver, so that the source driver outputs the same data signal voltage to the plurality of pixels, drives the display panel display screen, and the vertical line defect in the screen displayed by the display panel is performed;
  • Step S3 acquiring a coordinate of a vertical line defect in the screen displayed on the display panel and a type of the vertical line defect;
  • Step S4 The timing controller adjusts the grayscale value of the data signal of the column of pixels of the corresponding pixel array in the corresponding pixel array in the corresponding pixel array that is output by the source driver to the column according to the type of the vertical line defect.
  • the data signal voltage of the pixel changes, so that the brightness of the column of pixels changes to the same brightness of the two columns of pixels adjacent to the column of pixels;
  • Each of the pixels includes a plurality of sub-pixels arranged in sequence; the display panel further includes a plurality of columns of data lines respectively connected to the plurality of columns of sub-pixels, wherein the plurality of columns of data lines are connected to the source driver;
  • the source driver outputs the same data signal voltage to the sub-pixels of the plurality of pixels via the plurality of data lines;
  • the timing controller adjusts the grayscale value of the data signal of a column of pixels of the corresponding pixel array in the corresponding pixel array that is in the vertical pixel, so that the source driver is output through the corresponding multiple data lines.
  • the data signal voltages of the plurality of columns of sub-pixels of the column of pixels are changed such that the brightness of the plurality of columns of sub-pixels of the column of pixels is changed to be the same as the brightness of the sub-pixels of the two columns of pixels adjacent to the column of pixels;
  • the step S4 further includes: storing, by the timing controller, an adjustment value of adjusting a grayscale value of a data signal of a column of pixels of the corresponding pixel array in the corresponding pixel array;
  • the liquid crystal display device further includes a storage unit electrically connected to the timing controller, and the storage unit is configured to store a data signal of a column of pixels of the corresponding pixel array corresponding to the vertical line in the corresponding pixel array output by the timing controller The adjustment value of the grayscale value to be adjusted.
  • the present invention provides a method for adjusting a display screen by acquiring a coordinate of a vertical line defect in a picture displayed on a display panel and a type of the vertical line defect, and using a timing controller according to the vertical line.
  • Type the grayscale value of the data signal of one column of pixels in the corresponding pixel array corresponding to the vertical line is adjusted, so that the data signal voltage of the source driver outputted to the column of pixels changes, so that the brightness of the column of pixels
  • the brightness of the two columns of pixels adjacent to the column of pixels is the same, thereby eliminating vertical line defects and improving display quality.
  • FIG. 1 is a flowchart of a method for adjusting a display screen of the present invention
  • FIG. 2 is a schematic diagram of step S1 of the method for adjusting a display screen of the present invention.
  • the present invention provides a method for adjusting a display screen, including the following steps:
  • Step S1 please refer to FIG. 2, to provide a display device.
  • the display device includes a display panel 10 , a source driver 20 electrically connected to the display panel 10 , and a timing controller 30 electrically connected to the source driver 20 .
  • the display panel 10 includes a plurality of pixels 11 arranged in an array, and the source driver 20 is electrically connected to the plurality of pixels 11 .
  • each of the pixels 11 includes a plurality of sub-pixels 111 arranged in order.
  • the display panel 10 further includes a plurality of columns of data lines 12 respectively connected to the plurality of columns of sub-pixels 111, and the plurality of columns of data lines 12 are all connected to the source driver 20.
  • each pixel 11 includes three sub-pixels 111 arranged in sequence, and the three sub-pixels 111 are sequentially a red sub-pixel, a green sub-pixel, and a blue sub-pixel.
  • Step S2 the timing controller 30 provides a data signal to the source driver 20, causes the source driver 20 to output the same data signal voltage to the plurality of pixels 11, drives the display panel 10 to display a screen, and the display panel 10 displays a vertical image. Bad line.
  • the timing controller 30 respectively provides a plurality of data signals corresponding to the plurality of columns of pixels 11, and the data signals corresponding to each column of pixels 11 are the same as the data signals corresponding to the other column pixels 11.
  • the source driver 20 outputs the same data signal voltage to the sub-pixels 111 of the plurality of pixels 11 via the plurality of data lines 12.
  • Step S3 Acquire a coordinate of a vertical line defect in the screen displayed on the display panel 10 and a type of the vertical line defect.
  • the display panel 10 can be performed by the timing controller 30.
  • the detection acquires the coordinates of the vertical line defect in the screen displayed on the display panel 10 and the type of the vertical line defect.
  • the step S3 can also detect the display panel 10 by using an existing external computer on the detection machine, and obtain the vertical line in the screen displayed by the display panel 10.
  • the coordinates and the type of the vertical line defect are transmitted to the timing controller 30 for the timing controller 30 to adjust the display screen according to the type and coordinate of the vertical line defect.
  • Step S4 the timing controller 30 adjusts the grayscale value of the data signal of the column of the pixels 11 of the array of the corresponding pixels 11 in the array of the corresponding pixels 11 which is output in the array of the corresponding pixels, so that the source driver 20
  • the data signal voltage output to the column of pixels 11 changes, and the luminance of the column of pixels 11 is changed to the same brightness of the two columns of pixels 11 adjacent to the column of pixels 11.
  • the timing controller 30 adjusts the grayscale value of the data signal of the column of the pixels 11 of the array of the corresponding pixels 11 in the array of the corresponding pixels 11 that are in the vertical line, so that the source driver 20 passes through
  • the data signal voltages of the plurality of columns of sub-pixels 111 outputted to the column of pixels 11 are changed by the corresponding plurality of data lines 12, so that the brightness of the plurality of columns of sub-pixels 111 of the column of pixels 11 is changed to two columns of pixels 11 adjacent to the column of pixels 11.
  • the luminance of the sub-pixels 111 in the same is the same.
  • the timing controller 30 when the type of the vertical line defect acquired in the step S3 is a vertical light line defect, in the step S4, the timing controller 30 is a vertical light line defect according to the type of the vertical line defect, and The grayscale value of the data signal of one column of pixels 11 of the array of corresponding pixels 11 in the array of corresponding pixels 11 is increased, so that the data signal voltage outputted by the source driver 20 to the column of pixels 11 is increased, so that the column of pixels The brightness of 11 is increased to the same brightness of the two columns of pixels 11 adjacent to the column of pixels 11.
  • the timing controller 30 outputs the vertical line according to the type of the vertical line defect.
  • the grayscale value of the data signal of one column of pixels 11 in the array of corresponding pixels 11 in the vertical line is not reduced, so that the data signal voltage output from the source driver 20 to the column of pixels 11 is reduced, so that the column of pixels 11 is The brightness is reduced to the same brightness as the two columns of pixels 11 adjacent to the column of pixels 11.
  • the step S4 further includes: storing an adjustment value of the grayscale value of the data signal of the column of pixels 11 of the array of corresponding pixels 11 in the array of corresponding pixels 11 outputted by the timing controller 30.
  • the liquid crystal display device further includes a storage unit 40 electrically connected to the timing controller 30, and the storage unit 40 is used to store an array of corresponding pixels 11 output by the timing controller 30.
  • the adjustment value of the grayscale value of the data signal of one column of pixels 11 at the coordinates of the vertical line is adjusted for compensation of the display panel 10 for subsequent screen display.
  • the method for adjusting the display screen of the present invention first drives the display panel 10 to display the same data signal voltage by the timing controller 30 and the source driver 20, and acquires the display panel 10 at this time.
  • the coordinates of the vertical line in the displayed screen and the type of the vertical line defect and then the timing controller 30 outputs a column of the corresponding pixel 11 in the array of the corresponding pixels in the array of corresponding pixels 11 according to the type of the vertical line defect.
  • the grayscale value of the data signal of the pixel 11 is adjusted, so that the data signal voltage output from the source driver 20 to the column of pixels 11 changes, and the brightness of the column of pixels 11 is changed to two columns of pixels 11 adjacent to the column of pixels 11.
  • the brightness is the same, thereby eliminating the vertical line defect in the display screen, effectively improving the display quality, and adjusting the display screen by the timing controller 30, which is low in cost and has the feasibility of mass production.
  • the method for adjusting the display screen of the present invention acquires the coordinates of the vertical line defect and the type of the vertical line defect in the screen displayed on the display panel, and uses the timing controller to determine the type of the vertical line defect according to the type of the vertical line defect.
  • the gray scale value of the data signal of one column of pixels in the corresponding pixel array of the corresponding pixel array is adjusted, so that the data signal voltage of the source driver outputted to the column of pixels changes, so that the brightness of the column of pixels changes to The brightness of the two columns of pixels adjacent to the column pixel is the same, thereby eliminating the vertical line defect and improving the display quality.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

一种显示画面的调整方法。该方法通过获取显示面板(10)显示的画面中垂直线不良的坐标及垂直线不良的类型，利用时序控制器(30)根据垂直线不良的类型，将其输出的对应像素(11)阵列中位于垂直线不良的坐标的一列像素(11)的数据信号的灰阶值进行调整，使源极驱动器(20)输出至该列像素(11)的数据信号电压变化，使该列像素(11)的亮度变化至与该列像素(11)相邻的两列像素(11)的亮度相同，从而消除垂直线不良，提升显示品质。

Description

显示画面的调整方法 技术领域
本发明涉及显示技术领域，尤其涉及一种显示画面的调整方法。
背景技术
在显示技术领域，液晶显示装置(Liquid Crystal Display，LCD)、有机发光二极管(Organic Light-Emitting Diode，OLED)显示器等平板显示装置已经逐步取代阴极射线管(Cathode Ray Tube，CRT)显示装置。液晶显示装置具有机身薄、省电、无辐射等众多优点，得到了广泛的应用。
现有市场上的液晶显示装置大部分为背光型液晶显示装置，其包括液晶显示面板及背光模组(backlight module)。通常液晶显示面板由彩膜(Color Filter，CF)基板、薄膜晶体管(Thin Film Transistor，TFT)阵列基板、夹于彩膜基板与薄膜晶体管阵列基板之间的液晶(Liquid Crystal，LC)及密封胶框(Sealant)组成。液晶显示面板的工作原理是在两片平行的玻璃基板当中放置液晶分子，两片玻璃基板中间有许多垂直和水平的细小电线，通过通电与否来控制液晶分子改变方向，将背光模组的光线折射出来产生画面。
OLED通常包括：基板、设于基板上的阳极、设于阳极上的空穴注入层(Hole Inject Layer，HIL)、设于空穴注入层上的空穴传输层(Hole Transport Layer，HTL)、设于空穴传输层上的发光层、设于发光层上的电子传输层(Electron Transport Layer，ETL)、设于电子传输层上的电子注入层(Electron Inject Layer，EIL)及设于电子注入层上的阴极。OLED显示器件的发光原理为半导体材料和有机发光材料在电场驱动下，通过载流子注入和复合导致发光。具体的，OLED显示器件通常采用氧化铟锡像素电极和金属电极分别作为器件的阳极和阴极，在一定电压驱动下，电子和空穴分别从阴极和阳极注入到电子传输层和空穴传输层，电子和空穴分别经过电子传输层和空穴传输层迁移到发光层，并在发光层中相遇，形成激子并使发光分子激发，后者经过辐射弛豫而发出可见光。
随着显示技术的不断发展，大尺寸的显示面板越来越受到消费者的青睐。大尺寸的显示面板由于尺寸较大，面板内的均一性较差，导致显示面板存在着各种显示不良(mura)及线缺陷(line defect)。目前常采用mura 补偿(demura)的方案去解决显示面板的显示不良，但受限于demura的精度，包括垂直淡线不良及垂直亮线不良在内的垂直线不良的问题无法用现有的demura机台去解决。所谓的垂直淡线不良，指的是面板上的某一列像素相较于与其相邻的两列像素的亮度较低，导致出现垂直的淡线。所谓的垂直亮线不良，指的是面板上的某一列像素相较于与其相邻的两列像素的亮度较高，导致出现垂直的亮线。垂直线不良的存在严重影响了面板的显示品质。
发明内容
本发明的目的在于提供一种显示画面的调整方法，能够消除显示画面的垂直线不良，提升显示品质。
为实现上述目的，本发明提供一种显示画面的调整方法，包括如下步骤：
步骤S1、提供显示装置；
所述显示装置包括显示面板、与显示面板电性连接的源极驱动器及与源极驱动器电性连接的时序控制器；所述显示面板包括阵列排布的多个像素，所述源极驱动器与多个像素电性连接；
步骤S2、时序控制器提供数据信号至源极驱动器，使源极驱动器输出相同的数据信号电压至多个像素，驱动显示面板显示画面，所述显示面板显示的画面中存在垂直线不良；
步骤S3、获取显示面板显示的画面中垂直线不良的坐标及所述垂直线不良的类型；
步骤S4、时序控制器根据所述垂直线不良的类型，将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行调整，使源极驱动器输出至该列像素的数据信号电压变化，使该列像素的亮度变化至与该列像素相邻的两列像素的亮度相同。
所述步骤S3中，所述垂直线不良的类型为垂直淡线不良；
所述步骤S4中，时序控制器根据所述垂直线不良的类型为垂直淡线不良，将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行增加，使源极驱动器输出至该列像素的数据信号电压增大，使该列像素的亮度增大至与该列像素相邻的两列像素的亮度相同。
所述步骤S3中，所述垂直线不良的类型为垂直亮线不良；
所述步骤S4中，时序控制器根据所述垂直线不良的类型为垂直亮线不 良，将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行减小，使源极驱动器输出至该列像素的数据信号电压减小，使该列像素的亮度减小至与该列像素相邻的两列像素的亮度相同。
所述步骤S3中，利用时序控制器对显示面板进行侦测，获取显示面板显示的画面中垂直线不良的坐标及所述垂直线不良的类型。
所述步骤S3中，利用外部计算机对显示面板进行侦测，获取显示面板显示的画面中垂直线不良的坐标及所述垂直线不良的类型并传输至时序控制器。
所述步骤S4还包括：存储所述时序控制器将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行调整的调整值。
所述液晶显示装置还包括与时序控制器电性连接的存储单元，利用所述存储单元存储所述时序控制器将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行调整的调整值。
每一像素均包括依次排列的多个子像素；所述显示面板还包括分别与多列子像素对应连接的多列数据线，所述多列数据线均与源极驱动器连接。
所述步骤S2中，所述源极驱动器输出相同的数据信号电压经多条数据线输出至多个像素的子像素中。
所述步骤S4中，所述时序控制器将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行调整，使源极驱动器经对应的多条数据线输出至该列像素的多列子像素的数据信号电压变化，使该列像素的多列子像素的亮度变化至与该列像素相邻的两列像素中的子像素的亮度相同。
本发明还提供一种显示画面的调整方法，包括如下步骤：
步骤S1、提供显示装置；
所述显示装置包括显示面板、与显示面板电性连接的源极驱动器及与源极驱动器电性连接的时序控制器；所述显示面板包括阵列排布的多个像素，所述源极驱动器与多个像素电性连接；
步骤S2、时序控制器提供数据信号至源极驱动器，使源极驱动器输出相同的数据信号电压至多个像素，驱动显示面板显示画面，所述显示面板显示的画面中存在垂直线不良；
步骤S3、获取显示面板显示的画面中垂直线不良的坐标及所述垂直线不良的类型；
步骤S4、时序控制器根据所述垂直线不良的类型，将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行调整， 使源极驱动器输出至该列像素的数据信号电压变化，使该列像素的亮度变化至与该列像素相邻的两列像素的亮度相同；
其中，每一像素均包括依次排列的多个子像素；所述显示面板还包括分别与多列子像素对应连接的多列数据线，所述多列数据线均与源极驱动器连接；
所述步骤S2中，所述源极驱动器输出相同的数据信号电压经多条数据线输出至多个像素的子像素中；
所述步骤S4中，所述时序控制器将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行调整，使源极驱动器经对应的多条数据线输出至该列像素的多列子像素的数据信号电压变化，使该列像素的多列子像素的亮度变化至与该列像素相邻的两列像素中的子像素的亮度相同；
所述步骤S4还包括：存储所述时序控制器将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行调整的调整值；
所述液晶显示装置还包括与时序控制器电性连接的存储单元，利用所述存储单元存储所述时序控制器将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行调整的调整值。
本发明的有益效果：本发明提供的一种显示画面的调整方法通过获取显示面板显示的画面中垂直线不良的坐标及所述垂直线不良的类型，利用时序控制器根据所述垂直线不良的类型，将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行调整，使源极驱动器输出至该列像素的数据信号电压变化，使该列像素的亮度变化至与该列像素相邻的两列像素的亮度相同，从而消除垂直线不良，提升显示品质。
附图说明
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图中，
图1为本发明的显示画面的调整方法的流程图；
图2为本发明的显示画面的调整方法的步骤S1的示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图1，本发明提供一种显示画面的调整方法，包括如下步骤：
步骤S1、请参阅图2，提供显示装置。
所述显示装置包括显示面板10、与显示面板10电性连接的源极驱动器20及与源极驱动器20电性连接的时序控制器30。所述显示面板10包括阵列排布的多个像素11，所述源极驱动器20与多个像素11电性连接。
具体地，每一像素11均包括依次排列的多个子像素111。所述显示面板10还包括分别与多列子像素111对应连接的多列数据线12，所述多列数据线12均与源极驱动器20连接。在图2所示的实施例中，每一像素11包括依次排列的三个子像素111，该三个子像素111依次为红色子像素、绿色子像素及蓝色子像素。
步骤S2、时序控制器30提供数据信号至源极驱动器20，使源极驱动器20输出相同的数据信号电压至多个像素11，驱动显示面板10显示画面，所述显示面板10显示的画面中存在垂直线不良。
具体地，所述步骤S2中，所述时序控制器30分别提供与多列像素11对应的多个数据信号，且与每一列像素11对应的数据信号与其他列像素11对应的数据信号均相同，使得数据信号输出至源极驱动器20后，源极驱动器20输出相同的数据信号电压经多条数据线12输出至多个像素11的子像素111中。
步骤S3、获取显示面板10显示的画面中垂直线不良的坐标及所述垂直线不良的类型。
具体地，由于现有的应用于显示装置中的时序控制器均自带光标(Cursor)功能，其与显示面板电性连接后，能够在驱动显示面板显示时对显示面板进行侦测，获取显示面板显示的画面中垂直线不良的坐标，并且能获取该垂直线不良是垂直淡线不良还是垂直亮线不良，因此本发明的所述步骤S3中，可以利用时序控制器30对显示面板10进行侦测，获取显示面板10显示的画面中垂直线不良的坐标及所述垂直线不良的类型。
当然，在本发明的其他实施例中，所述步骤S3还可以利用现有的检测机台上已有的外部计算机对显示面板10进行侦测，获取显示面板10显示的画面中垂直线不良的坐标及所述垂直线不良的类型并传输至时序控制器30，以供时序控制器30根据垂直线不良的类型及坐标对显示画面进行调整。
步骤S4、时序控制器30根据所述垂直线不良的类型，将其输出的对应像素11阵列中位于垂直线不良的坐标的一列像素11的数据信号的灰阶值 进行调整，使源极驱动器20输出至该列像素11的数据信号电压变化，使该列像素11的亮度变化至与该列像素11相邻的两列像素11的亮度相同。
具体地，所述步骤S4中，所述时序控制器30将其输出的对应像素11阵列中位于垂直线不良的坐标的一列像素11的数据信号的灰阶值进行调整，使源极驱动器20经对应的多条数据线12输出至该列像素11的多列子像素111的数据信号电压变化，使该列像素11的多列子像素111的亮度变化至与该列像素11相邻的两列像素11中的子像素111的亮度相同。
具体地，当所述步骤S3中获取的所述垂直线不良的类型为垂直淡线不良时，所述步骤S4中，时序控制器30根据所述垂直线不良的类型为垂直淡线不良，将其输出的对应像素11阵列中位于垂直线不良的坐标的一列像素11的数据信号的灰阶值进行增加，使源极驱动器20输出至该列像素11的数据信号电压增大，使该列像素11的亮度增大至与该列像素11相邻的两列像素11的亮度相同。而当所述步骤S3中获取的所述垂直线不良的类型为垂直亮线不良时，所述步骤S4中，时序控制器30根据所述垂直线不良的类型为垂直亮线不良，将其输出的对应像素11阵列中位于垂直线不良的坐标的一列像素11的数据信号的灰阶值进行减小，使源极驱动器20输出至该列像素11的数据信号电压减小，使该列像素11的亮度减小至与该列像素11相邻的两列像素11的亮度相同。
具体地，所述步骤S4还包括：存储所述时序控制器30将其输出的对应像素11阵列中位于垂直线不良的坐标的一列像素11的数据信号的灰阶值进行调整的调整值。
进一步地，请参阅图2，所述液晶显示装置还包括与时序控制器30电性连接的存储单元40，利用所述存储单元40存储所述时序控制器30将其输出的对应像素11阵列中位于垂直线不良的坐标的一列像素11的数据信号的灰阶值进行调整的调整值，以用于后续的画面显示时对显示面板10进行补偿。
需要说明的是，本发明的显示画面的调整方法通过先使时序控制器30及源极驱动器20向多个像素11提供相同的数据信号电压，驱动显示面板10进行显示，此时获取显示面板10显示的画面中垂直线不良的坐标及所述垂直线不良的类型，而后利用时序控制器30根据所述垂直线不良的类型，将其输出的对应像素11阵列中位于垂直线不良的坐标的一列像素11的数据信号的灰阶值进行调整，使源极驱动器20输出至该列像素11的数据信号电压变化，使该列像素11的亮度变化至与该列像素11相邻的两列像素11的亮度相同，从而消除显示画面中的垂直线不良，有效地提升了显示品 质，且利用时序控制器30对显示画面进行调整，成本低廉，具有量产的可行性。
综上所述，本发明的显示画面的调整方法通过获取显示面板显示的画面中垂直线不良的坐标及所述垂直线不良的类型，利用时序控制器根据所述垂直线不良的类型，将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行调整，使源极驱动器输出至该列像素的数据信号电压变化，使该列像素的亮度变化至与该列像素相邻的两列像素的亮度相同，从而消除垂直线不良，提升显示品质。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (15)

  1. 一种显示画面的调整方法，包括如下步骤：
    步骤S1、提供显示装置；
    所述显示装置包括显示面板、与显示面板电性连接的源极驱动器及与源极驱动器电性连接的时序控制器；所述显示面板包括阵列排布的多个像素，所述源极驱动器与多个像素电性连接；
    步骤S2、时序控制器提供数据信号至源极驱动器，使源极驱动器输出相同的数据信号电压至多个像素，驱动显示面板显示画面，所述显示面板显示的画面中存在垂直线不良；
    步骤S3、获取显示面板显示的画面中垂直线不良的坐标及所述垂直线不良的类型；
    步骤S4、时序控制器根据所述垂直线不良的类型，将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行调整，使源极驱动器输出至该列像素的数据信号电压变化，使该列像素的亮度变化至与该列像素相邻的两列像素的亮度相同。
  2. 如权利要求1所述的显示画面的调整方法，其中，所述步骤S3中，所述垂直线不良的类型为垂直淡线不良；
    所述步骤S4中，时序控制器根据所述垂直线不良的类型为垂直淡线不良，将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行增加，使源极驱动器输出至该列像素的数据信号电压增大，使该列像素的亮度增大至与该列像素相邻的两列像素的亮度相同。
  3. 如权利要求1所述的显示画面的调整方法，其中，所述步骤S3中，所述垂直线不良的类型为垂直亮线不良；
    所述步骤S4中，时序控制器根据所述垂直线不良的类型为垂直亮线不良，将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行减小，使源极驱动器输出至该列像素的数据信号电压减小，使该列像素的亮度减小至与该列像素相邻的两列像素的亮度相同。
  4. 如权利要求1所述的显示画面的调整方法，其中，所述步骤S3中，利用时序控制器对显示面板进行侦测，获取显示面板显示的画面中垂直线不良的坐标及所述垂直线不良的类型。
  5. 如权利要求1所述的显示画面的调整方法，其中，所述步骤S3中，利用外部计算机对显示面板进行侦测，获取显示面板显示的画面中垂直线 不良的坐标及所述垂直线不良的类型并传输至时序控制器。
  6. 如权利要求1所述的显示画面的调整方法，其中，所述步骤S4还包括：存储所述时序控制器将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行调整的调整值。
  7. 如权利要求6所述的显示画面的调整方法，其中，所述液晶显示装置还包括与时序控制器电性连接的存储单元，利用所述存储单元存储所述时序控制器将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行调整的调整值。
  8. 如权利要求1所述的显示画面的调整方法，其中，每一像素均包括依次排列的多个子像素；所述显示面板还包括分别与多列子像素对应连接的多列数据线，所述多列数据线均与源极驱动器连接。
  9. 如权利要求8所述的显示画面的调整方法，其中，所述步骤S2中，所述源极驱动器输出相同的数据信号电压经多条数据线输出至多个像素的子像素中。
  10. 如权利要求8所述的显示画面的调整方法，其中，所述步骤S4中，所述时序控制器将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行调整，使源极驱动器经对应的多条数据线输出至该列像素的多列子像素的数据信号电压变化，使该列像素的多列子像素的亮度变化至与该列像素相邻的两列像素中的子像素的亮度相同。
  11. 一种显示画面的调整方法，包括如下步骤：
    步骤S1、提供显示装置；
    所述显示装置包括显示面板、与显示面板电性连接的源极驱动器及与源极驱动器电性连接的时序控制器；所述显示面板包括阵列排布的多个像素，所述源极驱动器与多个像素电性连接；
    步骤S2、时序控制器提供数据信号至源极驱动器，使源极驱动器输出相同的数据信号电压至多个像素，驱动显示面板显示画面，所述显示面板显示的画面中存在垂直线不良；
    步骤S3、获取显示面板显示的画面中垂直线不良的坐标及所述垂直线不良的类型；
    步骤S4、时序控制器根据所述垂直线不良的类型，将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行调整，使源极驱动器输出至该列像素的数据信号电压变化，使该列像素的亮度变化至与该列像素相邻的两列像素的亮度相同；
    其中，每一像素均包括依次排列的多个子像素；所述显示面板还包括 分别与多列子像素对应连接的多列数据线，所述多列数据线均与源极驱动器连接；
    所述步骤S2中，所述源极驱动器输出相同的数据信号电压经多条数据线输出至多个像素的子像素中；
    所述步骤S4中，所述时序控制器将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行调整，使源极驱动器经对应的多条数据线输出至该列像素的多列子像素的数据信号电压变化，使该列像素的多列子像素的亮度变化至与该列像素相邻的两列像素中的子像素的亮度相同；
    所述步骤S4还包括：存储所述时序控制器将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行调整的调整值；
    所述液晶显示装置还包括与时序控制器电性连接的存储单元，利用所述存储单元存储所述时序控制器将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行调整的调整值。
  12. 如权利要求11所述的显示画面的调整方法，其中，所述步骤S3中，所述垂直线不良的类型为垂直淡线不良；
    所述步骤S4中，时序控制器根据所述垂直线不良的类型为垂直淡线不良，将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行增加，使源极驱动器输出至该列像素的数据信号电压增大，使该列像素的亮度增大至与该列像素相邻的两列像素的亮度相同。
  13. 如权利要求11所述的显示画面的调整方法，其中，所述步骤S3中，所述垂直线不良的类型为垂直亮线不良；
    所述步骤S4中，时序控制器根据所述垂直线不良的类型为垂直亮线不良，将其输出的对应像素阵列中位于垂直线不良的坐标的一列像素的数据信号的灰阶值进行减小，使源极驱动器输出至该列像素的数据信号电压减小，使该列像素的亮度减小至与该列像素相邻的两列像素的亮度相同。
  14. 如权利要求11所述的显示画面的调整方法，其中，所述步骤S3中，利用时序控制器对显示面板进行侦测，获取显示面板显示的画面中垂直线不良的坐标及所述垂直线不良的类型。
  15. 如权利要求11所述的显示画面的调整方法，其中，所述步骤S3中，利用外部计算机对显示面板进行侦测，获取显示面板显示的画面中垂直线不良的坐标及所述垂直线不良的类型并传输至时序控制器。
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