Fabrication of integrated light guiding plate for backlight system

Chao Heng Chien; Zhi Peng Chen

doi:10.1117/12.647115

23 January 2006 Fabrication of integrated light guiding plate for backlight system

Chao Heng Chien, Zhi Peng Chen

Proceedings Volume 6109, Micromachining and Microfabrication Process Technology XI; 610909 (2006) https://doi.org/10.1117/12.647115
Event: MOEMS-MEMS 2006 Micro and Nanofabrication, 2006, San Jose, California, United States

Abstract

A traditional LCD backlight system is consist of light sources, a light guiding plate and prism sheets, diffusive sheets and reflective sheet. Following the development of the thin LCD, modify the backlight system which has already become the trend. The light guiding plate is very important element in backlight unit which is usually made of Polymethyl methacrylate (PMMA). Generally, the light guiding plates is fabricated by injection molding. MEMS and hot embossing technologies are applied to fabricate the integrated light guiding plate in this research. The micro-prisms, the micro pyramids and Al thin film are based on the integrated light guiding plate which is guiding light to the LCD panel evenly. So the backlight system will be simplified to use only one integrated light guiding plate without using any optical sheets. The light guiding plate can reduce three optical sheets in backlight, so it can save the space and lower the process cost. Non-prism LGPs and integrated LGPs are presented in this paper.

Citation Download Citation

Chao Heng Chien and Zhi Peng Chen "Fabrication of integrated light guiding plate for backlight system", Proc. SPIE 6109, Micromachining and Microfabrication Process Technology XI, 610909 (23 January 2006); https://doi.org/10.1117/12.647115

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