公开(公告)号：US09099049B2

公开(公告)日：2015-08-04

申请号：US14094153

申请日：2013-12-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Tae Kwon Jung ,  Dongmin Yeo ,  Byungchoon Yang ,  Yong-Hoon Kwon

IPC: G09G3/36 ,  G09G3/34

CPC classification number: G09G3/3607 ,  G09G3/3413 ,  G09G3/3426 ,  G09G2320/0626 ,  G09G2360/16

Abstract: A plurality of gray-scale values is extracted from image signals corresponding to a dimming area to calculate a mean value of the gray-scale values, and at least one of a variance, a standard deviation, a kurtosis, a skewness, a central moment, and an image moment is calculated using the mean value. Then, a representative gray-scale value corresponding to the dimming area is determined using the calculated values, and a dimming function for the light sources included in the dimming area is determined based on the representative gray-scale value. Then, the light sources included in the dimming area are driven based on the dimming function.

Abstract translation: 从对应于调光区域的图像信号中提取多个灰度值，以计算灰度值的平均值，以及方差，标准偏差，峰度，偏度，中心时刻 ，并使用平均值计算图像力矩。 然后，使用所计算的值确定与调光区域对应的代表灰度值，并且基于代表灰度值来确定包括在调光区域中的光源的调光功能。 然后，基于调光功能驱动包括在调光区域中的光源。