The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 08, 2015

Filed:

May. 13, 2014
Applicant:

Asustek Computer Inc., Taipei, TW;

Inventor:

Yi-Han Tu, Taipei, TW;

Assignee:

ASUSTek COMPUTER INC., Taipei, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/10 (2006.01); G09G 5/02 (2006.01); G06T 7/40 (2006.01); H04N 9/73 (2006.01); H04N 1/60 (2006.01);
U.S. Cl.
CPC ...
G09G 5/02 (2013.01); G06T 7/408 (2013.01); H04N 1/60 (2013.01); H04N 1/6077 (2013.01); H04N 9/73 (2013.01); G09G 2320/0666 (2013.01);
Abstract

A color temperature adjusting method of a display device includes follow steps: generating a color temperature curve in CIE 1931 color space according to a color temperature range, a Planckian locus and a CIE daylight locus in the CIE 1931 color space; calculating a target color coordinate at the color temperature curve corresponding to target color temperature; generating a new brightness ratio of red, green and blue, respectively, according to the target color coordinate and tristimulus values of the brightest red, the brightest green and the brightest blue of the display device; generating a coefficient of red, green and blue, respectively, according to the new brightness ratios of red, green and blue and the tristimulus values of red, green and blue; and adjusting the color temperature of the display device according to the coefficients of red, green and blue.


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