LED collimation module for time sequential back light system

Jou-Hui Lin; Chi-Hung Lee; An-Ching Tai; Yu-Hsuan Chen; Shih-Hsin Ma

doi:10.1117/12.2061583

25 September 2014 LED collimation module for time sequential back light system

Jou-Hui Lin, Chi-Hung Lee, An-Ching Tai, Yu-Hsuan Chen, Shih-Hsin Ma

Proceedings Volume 9192, Current Developments in Lens Design and Optical Engineering XV; 91921D (2014) https://doi.org/10.1117/12.2061583
Event: SPIE Optical Engineering + Applications, 2014, San Diego, California, United States

Abstract

In this study, a collimated LED light source has been developed as a colorful liquid crystal display backlight, which is driven by a two-field driving scheme to display color. In each field, the angular rays of two colors from LEDs are collimated by a collimation lens, redirected by a light guide and converged by a cylindrical-lens array to map into corresponding sub-pixel positions for efficiently displaying color image. The simulation results of the backlight module and the corresponding experimental results will be discussed in detail.

Citation Download Citation

Jou-Hui Lin, Chi-Hung Lee, An-Ching Tai, Yu-Hsuan Chen, and Shih-Hsin Ma "LED collimation module for time sequential back light system", Proc. SPIE 9192, Current Developments in Lens Design and Optical Engineering XV, 91921D (25 September 2014); https://doi.org/10.1117/12.2061583

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