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NCUEIR > College of Engineering > Department and Graduate Institute of Electronic Engineering > Proceedings > Item 987654321/10902

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/10902

Title:	Optical Design of Direct Backlight Modules with White LEDs
Authors:	Chen, Jin-Jia;Deng, S. W.;Huang, K. L.;Liu, C. X.
Contributors:	電機工程學系
Keywords:	Backlight module;Light guide plat;White LED;Optical design;Uniformity
Date:	2008-06
Issue Date:	2012-06-04T09:13:25Z
Publisher:	國際資訊顯示學會中華民國總會 (SID Taipei Chapter)
Abstract:	This paper present an upside-down cone-shaped structure placed above the LEDs in 17-inch LCD direct backlight module, apply theory in ray-tracing optical, and use the LightTools software. Thus the light rays emitted from the LEDs can alter properating directions, and the directly upward light intensity can be reduced. Using this structure to construct the backlight module, the light intensity of LED light sources can be redistributed, and the LCD panel can be illuminated more uniformity. The backlight module with LED light sources (LXHL-PW01) produced by the Lurnileds. When the 9-point measurement technology is applied, the average luminatnce of uniformity can be improved from 70% to 80%. 本文主要應用光線追跡理論搭配LightTools光學軟體，進行17吋液晶顯示器直下式背光模組設計。所設計之背光模組採用Lumileds生產的LXHL-PW01白光LED為光源，並設計出一倒立的錐形圓柱體結構，使光線能夠均勻分佈在背光模組中。經由9點量測結果顯示，背光板之均勻度可由70%提升至80%。
Relation:	Taiwan Display Conference, Taipei, Taiwan, 2008年6月11-12日
Appears in Collections:	[Department and Graduate Institute of Electronic Engineering] Proceedings

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