A Backlight Dimming Algorithm for Low Power and High Image Quality LCD Applications

被引：96
|
作者：
Cho, Hyunsuk [1 ]
Kwon, Oh-Kyong [1 ]
机构：
[1] Hanyang Univ, Div Elect & Comp Engn, Seoul 133791, South Korea
来源：
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS | 2009年 / 55卷 / 02期
关键词：
Backlight dimming; LED backlight; Pixel compensation; LCD;
D O I：
10.1109/TCE.2009.5174463
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A new backlight dimming algorithm is proposed to reduce power consumption of backlight and improve image quality in LCD applications. The proposed algorithm is consisted of two new techniques: the brightness modulation of the backlight and pixel compensation. The power saving ratio of four typical benchmarking images is 14-43% by using proposed brightness modulation algorithm. The proposed pixel compensation removes the clipping artifact and unnecessary luminance reduction. The proposed backlight dimming algorithm is demonstrated on 7-inch TFT-LCD with LED backlight(1).
引用
收藏
页码：839 / 844
页数：6
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