High-resolution 60-in. liquid crystal rear-projection TV

Feng-Chao Chung; Fang-Chuan Ho; Yi-Ling Wu

doi:10.1117/12.383373

25 April 2000 High-resolution 60-in. liquid crystal rear-projection TV

Feng-Chao Chung, Fang-Chuan Ho, Yi-Ling Wu

Proceedings Volume 3954, Projection Displays 2000: Sixth in a Series; (2000) https://doi.org/10.1117/12.383373
Event: Electronic Imaging, 2000, San Jose, CA, United States

Abstract

A compact 60-inch LCD rear projection television optimized with depth less than 60 cm has been developed by using three 1.3' poly-Si TFT-LCDs of 1024 X 768 pixels resolution. Three primary colors of the projection system are separated and synthesized by dichroic mirrors and X-prism respectively. Polarization converter is used to increase the optical throughput and an aspherical hybrid projection lens with f equals 19.97 mm and f/# equals 2.4 is designed to effectively shorten the projection distance. A Fresnel lens and a fine lenticular lens screen can create a morie' pattern free picture. Under a 120 W UHP lamp, the brightness of the rear projection TV can achieve 460 nits luminance.

Citation Download Citation

Feng-Chao Chung, Fang-Chuan Ho, and Yi-Ling Wu "High-resolution 60-in. liquid crystal rear-projection TV", Proc. SPIE 3954, Projection Displays 2000: Sixth in a Series, (25 April 2000); https://doi.org/10.1117/12.383373

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