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CN-116110324-B - Display device, method for improving afterimage of display area and electronic equipment

CN116110324BCN 116110324 BCN116110324 BCN 116110324BCN-116110324-B

Abstract

The application provides a display device, a method for improving the afterimage of a display area and electronic equipment, wherein the method for improving the afterimage of the display area comprises the steps of obtaining the current display mode, gray scale value and window value of the display area; and responding to the determination that the display mode is a highlight display mode, obtaining the brightness ratio of the display area according to the window value, determining a gray-scale compensation value, calculating according to the brightness ratio and the gray-scale compensation value to obtain a gray-scale correction compensation value, and performing gray-scale compensation on the gray-scale value by using the gray-scale correction compensation value. The display device, the electronic equipment and the method for improving the afterimage of the display area are simple and convenient, can effectively improve the afterimage problem of the light-emitting device in the highlighting mode, obtain the picture with normal display effect, avoid visual flaws and have good user experience.

Inventors

  • HU WENJIE
  • SHEN LIXIA
  • WANG BIN

Assignees

  • 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

Dates

Publication Date
20260512
Application Date
20230118

Claims (11)

  1. 1. A display device, comprising: A display panel including a plurality of pixels, each of the pixels being connected to a pixel driving circuit; The display device comprises a display panel, a driving controller, a pixel driving circuit and a display control circuit, wherein the display controller is connected with the display panel and is configured to acquire a current display mode, a gray scale value and a window value of a display area of the display panel, to respond to the fact that the display mode is a highlight display mode, to obtain the brightness ratio of the display area according to the window value, to determine a gray scale compensation value, to calculate the gray scale compensation value according to the brightness ratio and the gray scale compensation value, to conduct gray scale compensation on the gray scale value by the gray scale compensation value, and to drive the pixel driving circuit according to the compensated gray scale value so as to enable the pixel to emit light, the window value is the display range of the display area, and the brightness ratio is the ratio of the brightness of the current window value to the brightness when the window value is 100%.
  2. 2. The display device according to claim 1, wherein the driving controller is further configured to determine a gray-scale compensation value in response to determining that the display mode is a normal display mode, balance-adjust the brightness of the display area by a dynamic voltage control method, and obtain an adjusted gray-scale value, gray-scale compensate the adjusted gray-scale value with the gray-scale compensation value, and drive the pixel driving circuit according to the compensated gray-scale value to make the pixel emit light.
  3. 3. The display device according to claim 1, wherein the drive controller includes a luminance ratio calculation unit configured to obtain the luminance ratio from the window value and a luminance ratio-window value correspondence obtained in advance.
  4. 4. The display device according to claim 1, wherein the drive controller includes a gray-scale compensation value calculation unit configured to obtain the gray-scale compensation value from the gray-scale value and a gray-scale compensation value-gray-scale value correspondence obtained in advance.
  5. 5. The display device according to claim 1, wherein the driving controller includes a gray-scale compensation value calculation unit configured to obtain a gray-scale compensation value-temperature value correspondence under the gray-scale value from the gray-scale value and obtain a current temperature value of the display area, and obtain the gray-scale compensation value from the temperature value and the gray-scale compensation value-temperature value correspondence.
  6. 6. The display device according to claim 1, wherein the driving controller includes a gray-scale compensation value calculation unit configured to obtain a gray-scale compensation value-on time correspondence under the gray-scale value from the gray-scale value and obtain a current on time of the display area, and obtain the gray-scale compensation value from the on time and the gray-scale compensation value-on time correspondence.
  7. 7. The display device according to claim 1, wherein the drive controller includes a gray-scale compensation value calculation unit configured to acquire a gray-scale compensation value-threshold voltage variation amount correspondence under the gray-scale value from the gray-scale value and acquire a current threshold voltage variation amount of the display area, and to obtain the gray-scale compensation value from the threshold voltage variation amount and the compensation value-threshold voltage variation amount correspondence.
  8. 8. A method for improving an afterimage of a display area, comprising: acquiring a current display mode, a gray scale value and a window value of a display area; In response to determining that the display mode is a highlight display mode, obtaining a brightness ratio of the display area according to the window value, determining a gray-scale compensation value, and calculating according to the brightness ratio and the gray-scale compensation value to obtain a gray-scale correction compensation value; gray-scale compensation is carried out on the gray-scale value by using the gray-scale correction compensation value; the window value is a display range of a display area, and the brightness ratio is a ratio of brightness of the current window value to brightness when the window value is 100%.
  9. 9. The method of improving an afterimage of a display area according to claim 8, further comprising: in response to determining that the display mode is a common display mode, determining a gray-scale compensation value, performing balance adjustment on the brightness of the display area through a dynamic voltage control method, and obtaining an adjusted gray-scale value; and carrying out gray-scale compensation on the adjusted gray-scale value by using the gray-scale compensation value.
  10. 10. The method of claim 8, wherein determining a gray-scale compensation value comprises: obtaining the gray scale compensation value according to the gray scale value and a pre-obtained gray scale compensation value-gray scale value correspondence; Or acquiring a gray-scale compensation value-temperature value corresponding relation under the gray-scale value according to the gray-scale value, and acquiring a current temperature value of the display area; Or acquiring a gray-scale compensation value-working time corresponding relation under the gray-scale value according to the gray-scale value, and acquiring the current working time of the display area; Or acquiring a gray level compensation value-threshold voltage variation corresponding relation under the gray level value according to the gray level value, acquiring the current threshold voltage variation of the display area, and acquiring the gray level compensation value according to the threshold voltage variation and the compensation value-threshold voltage variation corresponding relation.
  11. 11. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing a method of improving an image retention in a display area as claimed in any one of claims 8 to 10 when the computer program is executed.

Description

Display device, method for improving afterimage of display area and electronic equipment Technical Field The present application relates to the field of display technologies, and in particular, to a display device, a method for improving an afterimage in a display area, and an electronic apparatus. Background With the development of information society, a large number of technologies have been developed in the field of display devices for displaying visual information as images, in which Light Emitting devices such as OLED (Organic Light-Emitting Diode), QLED (Quantum DotLight Emitting Diodes) or Micro LED (Micro LIGHT EMITTING Diodes) are used to display images, but in which materials of the Light Emitting devices deteriorate during long-term use, so that afterimages appear in display areas, compensation technologies such as a frequently used DBI (Deburn in) algorithm are used in the related art to compensate gray scales of input images, thereby achieving the effect of adjusting images and avoiding visual defects, and in which users also use different display modes according to the requirements when the display modes of the display areas are in a highlighting display mode, if the gray scales are also compensated according to the DBI algorithm, the images still appear, so that there is a need for a method and a device for improving the afterimages of the display areas in the highlighting display mode. Disclosure of Invention In view of the above, an object of the present application is to provide a display device, a method for improving an afterimage of a display area, and an electronic apparatus. The application provides a display device which comprises a display panel, a driving controller, a gray scale compensation value and a pixel driving circuit, wherein the display panel comprises a plurality of pixels, each pixel is connected with a pixel driving circuit, the driving controller is connected with the display panel and is configured to acquire a current display mode, a gray scale value and a window value of a display area of the display panel, the gray scale compensation value is determined according to the brightness ratio of the display area obtained according to the window value in response to the fact that the display mode is a highlight display mode, the gray scale compensation value is calculated according to the brightness ratio and the gray scale compensation value, gray scale compensation is conducted on the gray scale value by the gray scale compensation value, and the pixel driving circuit is driven according to the compensated gray scale value so that the pixels emit light. In some embodiments, the driving controller is further configured to determine a gray-scale compensation value in response to determining that the display mode is a normal display mode, balance-adjust the brightness of the display area by a dynamic voltage control method, and obtain an adjusted gray-scale value, perform gray-scale compensation on the adjusted gray-scale value by using the gray-scale compensation value, and drive the pixel driving circuit according to the compensated gray-scale value to make the pixel emit light. In some embodiments, the driving controller includes a luminance ratio calculation unit configured to obtain the luminance ratio from the window value and a pre-acquired luminance ratio-window value correspondence. In some embodiments, the driving controller includes a gray-scale compensation value calculating unit configured to obtain the gray-scale compensation value according to the gray-scale value and a pre-acquired gray-scale compensation value-gray-scale value correspondence. In some embodiments, the gray-scale compensation value calculating unit is configured to obtain a gray-scale compensation value-temperature value corresponding relation under the gray-scale value according to the gray-scale value, obtain a current temperature value of the display area, and obtain the gray-scale compensation value according to the temperature value and the gray-scale compensation value-temperature value corresponding relation. In some embodiments, the gray-scale compensation value calculating unit is configured to obtain a gray-scale compensation value-working time correspondence under the gray-scale value according to the gray-scale value, obtain a current working time of the display area, and obtain the gray-scale compensation value according to the working time and the gray-scale compensation value-working time correspondence. In some embodiments, the gray-scale compensation value calculating unit is configured to obtain a gray-scale compensation value-threshold voltage variation corresponding relation under the gray-scale value according to the gray-scale value, obtain a current threshold voltage variation of the display area, and obtain the gray-scale compensation value according to the threshold voltage variation and the compensation value-threshold voltage variation corresponding relation. The