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Patent Searching and Data


Title:
METHOD FOR ADJUSTING DISPLAY LUMINANCE, AND RELATED DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/204105
Kind Code:
A1
Abstract:
Disclosed is a method for adjusting display luminance, comprising: an electronic device obtains a luminance gain value, wherein the luminance gain value is less than or equal to 1; the electronic device determines a third dimming curve according to the luminance gain value, a peak luminance curve of a display screen, a preset first average pixel level, and a preset second average pixel level; the electronic device obtains an image to be displayed; the electronic device calculates an average pixel level (APL) in said image; the electronic device determines an actual display luminance value corresponding to the APL of said image by means of the third dimming curve; the electronic device adjusts the display luminance of said image according to the actual display luminance value. In this way, it can be ensured that turning down the luminance has little effect on contrast at low APL, thereby ensuring the high-contrast effect of the picture luminance in HDR display.

Inventors:
ZHANG XIUFENG (CN)
Application Number:
PCT/CN2021/085590
Publication Date:
October 14, 2021
Filing Date:
April 06, 2021
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G09G3/32; G09G5/10; H04N5/57
Foreign References:
CN101102437A2008-01-09
CN110867161A2020-03-06
CN106297731A2017-01-04
KR20190006730A2019-01-21
KR100708823B12007-04-18
KR20160035192A2016-03-31
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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