标题: | Switchable viewing angle display with a compact directional backlight and striped diffuser |
作者: | Wang, Yi-Jun Lu, Jian-Gang Chao, Wei-Chung Shieh, Han-Ping D. 光电工程学系 显示科技研究所 Department of Photonics Institute of Display |
公开日期: | 10-八月-2015 |
摘要: | A compact high-directionality backlight module combined with a striped diffuser is proposed to achieve an adjustable viewing angle for ecodisplay. The micro-prisms on the compact light guide plate guide the emitting rays to the normal viewing angle, whereas a set of striped diffusers scatter the rays to a wide viewing angle. View cones of +/- 10 degrees/+/- 55 degrees were obtained for narrow/wide viewing modes with 88%/85% uniformity of spatial luminance, respectively. Compared with the conventional backlight, the optical efficiencies were increased by factors of 1.47 and 1.38 in narrow and wide viewing modes, respectively. In addition, only 5% of power consumption was needed when the backlight worked in private narrow viewing mode to maintain the same luminance as that of a conventional backlight. (C) 2015 Optical Society of America |
URI: | http://dx.doi.org/10.1364/OE.23.021443 http://hdl.handle.net/11536/128316 |
ISSN: | 1094-4087 |
DOI: | 10.1364/OE.23.021443 |
期刊: | OPTICS EXPRESS |
Volume: | 23 |
Issue: | 16 |
起始页: | 21443 |
结束页: | 21454 |
显示于类别: | Articles |
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