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58.1: Single‐Panel LCOS Color Projector with LED Light Sources
Author(s) -
Zou Hans,
Schleicher Adam,
Dean John
Publication year - 2005
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.2036343
Subject(s) - liquid crystal on silicon , projector , light emitting diode , digital light processing , optics , computer science , spatial light modulator , light source , materials science , projection (relational algebra) , polarization (electrochemistry) , optoelectronics , computer graphics (images) , physics , liquid crystal display , algorithm , chemistry
We report a full color projection display based on a single LCOS panel using LED light sources. We have demonstrated that light output limitation due to polarization conversion can be substantially overcome by the small working F/# of the LCOS panel and LED compatibility with polarization recycling without increasing source etendue. We are presenting key technology developments in light collection optics and driving strategies for an LCOS based projection HDTV. Our demonstrator with currently available LEDs produces more than 40 screen lumens.