Luminance adjustment method and device of display panel
AssigneeWuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorsYedong WANG, Jia ZHANG
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Abstract
The present disclosure provides a luminance adjustment method and device of a display panel. In the method, firstly, a difference between the luminance parameters of different regions of the target panel are obtained, and temperatures of different regions of the target panel are obtained according to the difference of the luminance parameters of the different regions of the target panel. Then, luminance compensation parameters of the corresponding regions are obtained according to a correlation of the luminance to the temperature and a difference of the operating temperatures of the different regions, and finally, the luminance of a corresponding region is compensated according to the luminance compensation parameters.
Claims20
A luminance adjustment method of a display panel, comprising following steps:
- obtaining a first luminance parameter of a first region of a target panel and a second luminance parameter of a second region of the target panel;
- when a first difference between the first luminance parameter and the second luminance parameter is greater than or equal to a first threshold, obtaining a first operating temperature of the first region of the target panel and a second operating temperature of the second region of the target panel;
- when a second difference between the first operating temperature and the second operating temperature is greater than or equal to a second threshold, obtaining a correlation of luminance to temperature, and obtaining a luminance compensation parameter of the first region or the second region according to the second difference and the correlation of the luminance to the temperature;
- compensating luminance of the first region or the second region according to the luminance compensation parameter of the first region or second region.
A luminance adjustment device of a display panel, comprising:
- a luminance obtaining unit configured to obtain a first luminance parameter of a first region of a target panel and a second luminance parameter of a second region of the target panel;
- a temperature obtaining unit configured to obtain a first operating temperature of the first region of the target panel and a second operating temperature of the second region of the target panel when a first difference between the first luminance parameter and the second luminance parameter is greater than or equal to a first threshold;
- a signal processing unit configured to, when a second difference between the first operating temperature and the second operating temperature is greater than or equal to a second threshold value, obtain a correlation of luminance to temperature and a luminance compensation parameter of the first region or the second region according to the correlation of the luminance to the temperature and the second difference value;
- a compensation range register configured to store the luminance compensation parameter of the first region or the second region;
- a luminance compensation unit configured to compensate luminance of a corresponding first region or a corresponding second region according to the luminance compensation parameter of the first region or the second region.
Dependencies are inferred from the claim text.