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

页码：142 / 144

页数：3

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