Strategy for developing high efficiency backlight module for LCD

Cheng-Huan Chen; Po-Hung Yao; Chun-Ruei Yang; Po-Chou Chen; Chi-Jui Chung; Po-Chun Lin; Chien-Li Wu; Cheng-Kuo Sung; Chien-Chung Fu; Meng-Chi Huang; Han-Ping Yang; Folcon Lin; Norio Sugiura

doi:10.1117/12.908607

6 February 2012 Strategy for developing high efficiency backlight module for LCD

Cheng-Huan Chen, Po-Hung Yao, Chun-Ruei Yang, Po-Chou Chen, Chi-Jui Chung, Po-Chun Lin, Chien-Li Wu, Cheng-Kuo Sung, Chien-Chung Fu, Meng-Chi Huang, Han-Ping Yang, Folcon Lin, Norio Sugiura

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Proceedings Volume 8280, Advances in Display Technologies II; 82800J (2012) https://doi.org/10.1117/12.908607
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

The major efficiency loss in current liquid crystal displays(LCD) are the absorption in polarizers and color filter, and both can be resolved with decent backlight design which takes light polarization and color separation into consideration. Those improvement schemes on the backlight normally will not trade off the image quality readily achieved in the commercial LCD. Both polarization and color separation schemes for the backlight are reviewed with categorization on the basic concept, followed by the proposal of possible combinations for both direct lit and edge lit configuration with the consideration on the availability of associated components. Two total solutions, including polarization conversion module for LED and pixelized backlight with RGB LED for direct lit and edge lit respectively, are given with demonstration of preliminary result achieved so far as the efficiency improvement schemes for LCD backlight.

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Cheng-Huan Chen, Po-Hung Yao, Chun-Ruei Yang, Po-Chou Chen, Chi-Jui Chung, Po-Chun Lin, Chien-Li Wu, Cheng-Kuo Sung, Chien-Chung Fu, Meng-Chi Huang, Han-Ping Yang, Folcon Lin, and Norio Sugiura "Strategy for developing high efficiency backlight module for LCD", Proc. SPIE 8280, Advances in Display Technologies II, 82800J (6 February 2012); https://doi.org/10.1117/12.908607

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