Brightness compensation method and device and display device
A brightness compensation and brightness technology, applied in static indicators, image analysis, instruments, etc., can solve the problems of affecting the display effect and leaving afterimages on OLED display panels, so as to reduce the possibility of afterimages, improve display effects, and reduce damage Effect
Active Publication Date: 2020-01-14
BOE TECH GRP CO LTD +1
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[0003] Embodiments of the present invention provide a brightness compensation method, device, and display device to solve the problem that the label area of an OLED display panel may leave an afterimage on the screen and affect the display effect
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[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0040] An embodiment of the present invention provides a brightness compensation method.
[0041] The brightness compensation method is applied to the OLED display panel to perform brightness compensation on the area where the label in the display screen is located. It should be understood that if the display brightness of the label is relatively low, such as substantially the same as the average brightness of the image, then the possibility of abnorma...
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The invention provides a brightness compensation method and device and a display device. The brightness compensation method is applied to the OLED display panel and comprises the following steps: extracting multiple frames of images input into the OLED display panel, and a display area of the OLED display panel comprising multiple blocks; calculating gray-scale values of areas, corresponding to the blocks, of the multiple frames of images, and calculating gray-scale weights and gray-scale difference weights of the blocks according to the gray-scale values; and determining a label block where alabel in the multi-frame image is located according to the gray scale weight and the gray scale difference weight, and compensating the brightness of the OLED display panel according to the determined label block. According to the embodiment of the invention, the damage of organic compounds in the area where the label is located can be reduced, so that the possibility of generating residual images on a screen is reduced, and the display effect is improved.
Description
technical field [0001] The invention relates to the field of display technology, in particular to a brightness compensation method, device and display device. Background technique [0002] OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) display panel has very broad application prospects due to its advantages of no backlight, high contrast, thin thickness, wide viewing angle, fast response speed, and wide operating temperature range. A TFT (Thin Film Transistor, thin film transistor) is usually required in the existing OLED display panel, and the stability of the organic compound in the existing TFT is relatively poor. Some areas of the OLED front panel may display the same image for a long time, such as displaying the logo of a certain TV station or the watermark in some videos. In these areas where the same image is displayed for a long time, the content of the organic compound The wear and tear may increase, leaving afterimages on the screen and affectin...
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IPC IPC(8): G06T7/90G09G3/3208
CPCG06T7/90G09G3/3208G09G2320/0257
Inventor 侯一凡李越史天阔张小牤杨涛姬治华孙一郎褚怡芳刘传军周志恒段欣时凌云
Owner BOE TECH GRP CO LTD