LED-Based Projection Systems

Author

Yu, Xing-Jie ; Ho, Y.L. ; Tan, L. ; Huang, Ho-Chi ; Kwok, Hoi-Sing

Author_Institution

Hong Kong Univ. of Sci. & Technol. Kowloon, Hong Kong

Volume

3

Issue

3

fYear

2007

Firstpage

295

Lastpage

303

Abstract

A novel design methodology for LED-array-based projection displays has been developed. By combining etendue limitation, system intensity, and efficiency requirements, a novel parameter space is proposed. Using this parameter space, LED lens-array and compound parabolic concentrator (CPC)-array illumination systems have been designed. A 1000-lm LED light source is built. Based on these lens-array and CPC-array illuminators, several LED-based liquid crystal on silicon (LCOS) projection systems are suggested. Among them, a one-panel LCOS projection system is proposed and tested. The method discussed here should be useful in the design of LED-array illumination systems for projectors in general.

Keywords

LED displays; liquid crystal displays; LED lens-array; LED-array-based projection displays; LED-based liquid crystal on silicon; LED-based projection systems; compound parabolic concentrator; illumination systems; system intensity; Costs; Displays; Electrodes; High intensity discharge lamps; Light emitting diodes; Light sources; Lighting; Liquid crystal on silicon; Temperature; Xenon; LED arrays; projectors;

fLanguage

English

Journal_Title

Display Technology, Journal of

Publisher

ieee

ISSN

1551-319X

Type

jour

DOI

10.1109/JDT.2007.901560

Filename

4292142