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

Design and fabrication of an ultra-slim light guide for LCD backlights 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/m 2 and the uniformity above 80% was fabricated. This process will contribute to the production of an ultra slim light guide in the future. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Proceedings of SPIE SPIE

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

Proceedings of SPIE , Volume 7852 (1) – Nov 3, 2010

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Publisher
SPIE
Copyright
Copyright © 2011 COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
ISSN
0277-786X
eISSN
1996-756X
DOI
10.1117/12.870410
Publisher site
See Article on Publisher Site

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/m 2 and the uniformity above 80% was fabricated. This process will contribute to the production of an ultra slim light guide in the future.

Journal

Proceedings of SPIESPIE

Published: Nov 3, 2010

There are no references for this article.