Power management of direct-view LED backlight for liquid crystal display

被引：10
|
作者：
Lee, Xuan-Hao [1 ]
Lin, Che-Chu [1 ]
Chang, Yu-Yu [1 ]
Chen, He-Xiang [1 ]
Sun, Ching-Cherng [1 ]
机构：
[1] Natl Cent Univ, Dept Opt & Photon, Chungli 320, Taiwan
来源：
OPTICS AND LASER TECHNOLOGY | 2013年 / 46卷
关键词：
Backlight; LED; Photon recycling;
D O I：
10.1016/j.optlastec.2012.06.034
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, we present a study of management of power in function of luminous efficacy of white LED as well as the efficiency enhancement of the direct-view backlight with photon recycling. A cavity efficiency as high as 90.7% is demonstrated for a direct-view backlight with photon recycling. In the future, with a 90% backlight cavity, luminous efficacy of 200 lm/W for white LEDs, and a transmission efficiency of 10% for the liquid crystal panel, the required power of LEDs could be only 16 W. Up to 85% energy saving could be achieved in comparison to the power of the current liquid crystal display. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：142 / 144
页数：3
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