公开(公告)号：US20140333655A1

公开(公告)日：2014-11-13

申请号：US14276704

申请日：2014-05-13

Applicant: ASUSTeK COMPUTER INC.

Inventor： Yi-Han TU

IPC: G09G5/02 ,  G06T7/40

CPC classification number: G09G5/02 ,  G06T7/90 ,  G09G5/10 ,  G09G2320/0626 ,  G09G2320/0666 ,  G09G2340/14 ,  G09G2360/144 ,  H04N1/60 ,  H04N1/6077 ,  H04N9/73

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.

Abstract translation: 显示装置的色温调整方法包括以下步骤：根据CIE1931色空间中的色温范围，普朗克轨迹和CIE日光轨迹，生成CIE1931色空间色温曲线; 在对应于目标色温的色温曲线上计算目标色坐标; 根据目标颜色坐标和显示设备中最亮的红色，最亮的绿色和最亮的蓝色的三刺激值分别产生红色，绿色和蓝色的新亮度比; 根据红色，绿色和蓝色的新亮度比和红色，绿色和蓝色的三刺激值分别产生红色，绿色和蓝色的系数; 并根据红色，绿色和蓝色的系数调整显示装置的色温。