標題: Dual-view angle backlight module design
作者: Chen, Bo-Tsuen
Pan, Jui-Wen
光電系統研究所
生醫電子轉譯研究中心
Institute of Photonic System
Biomedical Electronics Translational Research Center
公開日期: 1-Oct-2015
摘要: We propose a bilayer light guide plate (BLGP) with specially designed microstructures and two light source modules to achieve an adjustable viewing angle backlight for ecofriendly displays. The dual viewing angle backlight module has a thin, simple structure and a high optical efficiency. Comparison with the conventional edge-lit backlight module shows an improvement in the on-axis luminance of the narrow viewing angle mode of 4.3 times and a decrease in the half-luminance angle of 7 degrees in the horizontal direction. When using the wide viewing angle mode, there is an improvement in the on-axis luminance of 1.8 times and an improvement in the half-luminance angle of 54 degrees in the horizontal direction. The uniformity of illuminance can reach 80% in each mode. The backlight optical sheet number is reduced from 5 to 1. (C) 2015 Optical Society of America
URI: http://dx.doi.org/10.1364/AO.54.000E80
http://hdl.handle.net/11536/128247
ISSN: 1559-128X
DOI: 10.1364/AO.54.000E80
期刊: APPLIED OPTICS
Volume: 54
Issue: 28
起始頁: E80
結束頁: E87
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