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Luminance compensation method and self-illumination display device

A display device and brightness compensation technology, which is applied to static indicators, instruments, etc., can solve the problems of large brightness values, large differences in the decay speed of self-luminous elements, and poor brightness uniformity of the display screen of OLED display devices, etc., to achieve the decay speed The effect of increasing and decreasing the decay speed

Active Publication Date: 2015-01-21
HISENSE VISUAL TECH CO LTD
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Problems solved by technology

After the OLED display device works for a long time, the difference in the decay speed of the self-luminous elements in each area becomes larger, which will cause the brightness value of the area where the self-luminous elements decay quickly in the display screen of the OLED display device to be small, and the self-luminous elements decay slowly. The luminance value of the area is relatively large, causing the luminance uniformity of the display screen of the OLED display device to become worse and worse, which in turn causes a blocky mura phenomenon.

Method used

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Embodiment Construction

[0021] 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 only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] An embodiment of the present invention provides a brightness compensation method, such as figure 1 As shown, it is applied to a self-luminous display device, and the self-luminous display device may be a plasma display device, an electrowetting display device, an electrochromic display device, an OLED display device, etc., which are not limited in the embodiments of the present invention. Embodiments of the invention are described by taking an OLED disp...

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Abstract

The embodiment of the invention provides a luminance compensation method and a self-illumination display device, and relates to the technical field of display devices. According to the luminance compensation method and the self-illumination display device, attenuation difference of self-illumination elements in all areas after the self-illumination display device works for a long time can be reduced, and the lumpy mura phenomenon occurring after a displayer of the self-illumination display device works for a ling time can be avoided. The luminance compensation method comprises the steps of obtaining a pre-stored compensation factor table of the self-illumination display device, wherein the compensation factor table comprises compensation factors of N areas, the compensation factor of the area with the temperature higher than the temperature of a standard area is smaller than G, and the compensation factor of the area with the temperature lower than the temperature of the standard area is larger than G; compensating for the luminance of images displayed in all the N areas according to the compensation factor table. The luminance compensation method is used for compensating for the luminance of the self-illumination display device.

Description

technical field [0001] The invention relates to the technical field of display devices, in particular to a brightness compensation method and a self-luminous display device. Background technique [0002] With the advancement of science and technology, due to the advantages of self-luminous display devices such as self-luminous display and fast response speed, the application of self-luminous display devices is becoming more and more extensive. Usually, organic light-emitting diodes (OLEDs) and other self-luminous The light-emitting element is used as the pixel of the display screen of the self-luminous display device, but in the application process of the self-luminous display device, the self-luminous element will be attenuated and aged after a long time of work, resulting in a mura phenomenon. [0003] For example, after a long period of use of an OLED display device, the self-luminous elements of the display screen will have attenuation and aging phenomena. The aging and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32G09G3/3208
CPCG09G3/3208G09G2320/0233G09G2320/0285G09G2320/041G09G2320/043
Inventor 路林乔明胜曹建伟宋志成
Owner HISENSE VISUAL TECH CO LTD
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