Design and fabrication of an ultra-slim light guide for LCD backlights

Zongbao Fang; Xiaohong Zhou; Heng Zhang; Linsen Chen

doi:10.1117/12.870410

15 November 2010 Design and fabrication of an ultra-slim light guide for LCD backlights

Zongbao Fang, Xiaohong Zhou, Heng Zhang, Linsen Chen

Proceedings Volume 7852, LED and Display Technologies; 785203 (2010) https://doi.org/10.1117/12.870410
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

A five-inch light guide plate by arranging special cone dots on the surface of optical polycarbonate film was designed. Then an optical model was built by using TracePro and the luminance distribution of the light guide was simulated by using ray tracing method to achieve an efficient and uniform radiation of light from the light-guide. The above light guide was fabricated by roll to roll hot embossing process instead of injection molding. The fabrication of the hotembossing mold was investigated. Finally, a 5 inch light guide with the average luminance greater than 3000 cd/m² and the uniformity above 80% was fabricated. This process will contribute to the production of an ultra slim light guide in the future.

Citation Download Citation

Zongbao Fang, Xiaohong Zhou, Heng Zhang, and Linsen Chen "Design and fabrication of an ultra-slim light guide for LCD backlights", Proc. SPIE 7852, LED and Display Technologies, 785203 (15 November 2010); https://doi.org/10.1117/12.870410

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