Title: Efficient polarized backlight for transflective liquid crystal display illumination
Authors: Chien, KW
Shieh, HPD
Cornelissen, HJ
光電工程學系
Department of Photonics
Keywords: backlight;polarization conversion;birefringence;transflective LCD
Issue Date: 1-Apr-2005
Abstract: A collimated backlight was designed for high-efficiency transflective liqud crystal display (LCD) illumination. Additionally, polarization separation was achieved by selective total internal reflection at microgrooves in polymeric foils, which were stretched to be anisotropic materials for easy fabrication and tunable birefringence. A lenticular lens array was then utilized to collect the collimated light of the polarized backlight to further improve light utilization efficiency. Therefore, gains of 2.91 and 1.37 in light utilization efficiency were obtained for transmissive and reflective modes, respectively.
URI: http://dx.doi.org/10.1143/JJAP.44.1818
http://hdl.handle.net/11536/13837
ISSN: 0021-4922
DOI: 10.1143/JJAP.44.1818
Journal: JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS
Volume: 44
Issue: 4A
Begin Page: 1818
End Page: 1819
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