Optical: systems and elements – Projection screen – Unitary sheet comprising plural refracting areas
Reexamination Certificate
2007-04-10
2010-11-16
Mahoney, Christopher E (Department: 2862)
Optical: systems and elements
Projection screen
Unitary sheet comprising plural refracting areas
C359S460000, C353S030000
Reexamination Certificate
active
07835079
ABSTRACT:
The viewing angle brightness sensitivity typically encountered in tiled rear projection display systems cannot be solely overcome by edge blending and calibration techniques. The rear projection array display-screen system of this invention, being comprised of a micro-structure array screen combined with a conventional diffusion screen, overcomes this viewing angle brightness sensitivity in both linear as well as matrix tiled rear projection display systems including those that use wide field-of-view projectors. The latter capability enables low form-factor and compact packaging of tiled rear projection display systems.
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Cai Jingbo
El-Ghoroury Hussein S.
McNeill Dale A.
Blakely , Sokoloff, Taylor & Zafman LLP
Mahoney Christopher E
Ostendo Technologies, Inc.
Rhodes Leon W
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