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Title:
METHOD FOR CORRECTING SCREEN DISPLAY BASED ON NEGATIVE FEEDBACK
Document Type and Number:
WIPO Patent Application WO/2019/091245
Kind Code:
A1
Abstract:
A method for correcting screen display based on negative feedback, involving: measuring feature values of screen display as feedback each time operating parameters of a screen are adjusted; successively correcting a G channel value, a B channel value and an R channel value and marking the correction as one-time correction of the operating parameters of the screen; and after the operating parameters have undergone one-time correction, measuring the brightness, a colour temperature y-axis coordinate and a colour temperature x-axis coordinate of the screen display and determining whether the values simultaneously reach corresponding target values, and if so, current Gamma correction ending, and if not, re-correcting the operating parameters for a current grayscale by starting from the correction of the G channel value. The R, G and B channel values of a screen are corrected by means of separation based on feedback to simplify the correction process, such that the accuracy of one-time correction is high, thus improving the speed of screen display correction.

Inventors:
FU TAI (CN)
PEI PEI (CN)
YU ZHIGANG (CN)
Application Number:
PCT/CN2018/108104
Publication Date:
May 16, 2019
Filing Date:
September 27, 2018
Export Citation:
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Assignee:
AMLOGIC SHANGHAI CO LTD (CN)
International Classes:
G09G5/02; G09G5/10; H04N9/73
Foreign References:
CN103501430A2014-01-08
CN106297664A2017-01-04
CN101447161A2009-06-03
CN105355189A2016-02-24
CN106409251A2017-02-15
CN104167174A2014-11-26
CN106507082A2017-03-15
CN107622761A2018-01-23
Attorney, Agent or Firm:
SHANGHAI SHENXIN LAW FIRM (CN)
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