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Browse Journals & Magazines > Broadcasting, IEEE Transactio ...> Volume:45 Issue:2 Help

High-brightness projection display using spatial light modulators with polymer-dispersed liquid crystal

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6 Author(s)
Kawakita, M. ; Sci. & Tech. Res. Labs., Japan Broadcasting Corp., Tokyo, Japan ; Kikuchi, H. ; Fujii, T. ; Fujikake, H.
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A brightness-enhanced full-color projection display using optically addressed spatial light modulators (SLMs) with light-scattering mode polymer-dispersed liquid crystal has been developed. The SLM can modulate strong unpolarized light efficiently using the light-scattering effect. The projector using SLM with a Schlieren optical system produces bright, high-contrast images. Electrical image compensation of the shading and gamma characteristics of the SLMs carried out in the driving circuits improves the spatial uniformity and grayscale representation of the projected images. The system projects a bright image of more than 1300 cd/m2 with a high extinction ratio over 130:1 on a 60-inch screen, which can be viewed in a bright living room under normal lighting conditions

Published in:
Broadcasting, IEEE Transactions on  (Volume:45 ,  Issue: 2 )

Date of Publication: Jun 1999

Page(s):
225 - 233
ISSN :
0018-9316
INSPEC Accession Number:
6372923
Digital Object Identifier :
10.1109/11.796264
Product Type:
Journals & Magazines
Date of Current Version :
06 August 2002
Issue Date :
Jun 1999
Sponsored by :
IEEE Broadcast Technology Society

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