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15.1: A New LC Rear‐Projection Display Based on the “Color‐Grating Method”
Author(s) -
Kanayama H.,
Takemori D.,
Furuta Y.,
Hachiya T.,
Miwa T.,
Yamauchi K.,
Terada K.,
Funazou Y.,
Kishimoto S.
Publication year - 1998
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 - 10.1889/1.1833727
Subject(s) - optics , color gel , grating , prism , brightness , projection (relational algebra) , chromaticity , optical filter , materials science , physics , computer science , layer (electronics) , algorithm , composite material , thin film transistor
We have developed a rear‐projection display with a novel color separation system, so called the Color Grating Method, comprised of the diffraction grating and the single‐LC panel. This method realizes the higher brightness and well chromaticity compared with the conventional optical engine using single‐LC with color filter. Further, we developed a new polarization converter system, using a prism array that consists of several small prisms. A prism array combines both orthogonal polarized light, therefore our optical engine can efficiently utilize a luminosity of a light source. The LC rear‐projection display based on these technologies realized the lower costs and light weight, a slim body and good performance.