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

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/104026

Title:	Power management of direct-view LED backlight for liquid crystal display
Authors:	孫慶成;Lee, Xuan-Hao;Lin, Che-Chu;Chang, Yu-Yu;Chen, He-Xiang;Sun, Ching-Cherng
Contributors:	理學院光電科學與工程學系
Keywords:	Backlight;Backlights;Energy conservation;Holes;Lasers;LED;Light-emitting diodes;Liquid crystal displays;Luminous efficacy;Photon recycling;Photons;Recycling
Date:	2013-03-01
Issue Date:	2026-04-23 11:42:08 (UTC+8)
Publisher:	Elsevier Ltd.;Elsevier Ltd
Abstract:	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 200lm/W for white LEDs, and a transmission efficiency of 10% for the liquid crystal panel, the required power of LEDs could be only 16W. Up to 85% energy saving could be achieved in comparison to the power of the current liquid crystal display. ► A design for a high-efficiency backlight with direct-view structure based on photon recycling. ► Optical efficiency of the backlight as high as 90.7% is demonstrated. ► When the luminous efficacy of white LED reaches 200lm/W, the power of LEDs is 16W for the backlight. ► 85% in energy saving can be achieved for LED backlight. 出版者： Elsevier Ltd 出版日期： 2013-03 出處： Optics and laser technology, 2013-03, Vol.46, p.142-144 資源來源： Elsevier ScienceDirect Journals Complete 版權： 2012 Elsevier Ltd 識別號： ISSN: 0030-3992 識別號： EISSN: 1879-2545 識別號： DOI: 10.1016/j.optlastec.2012.06.034
Appears in Collections:	[Department of Optics and Photonics] journal & Dissertation

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