Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – With charge transferring layer of specified composition
Reexamination Certificate
2005-01-25
2005-01-25
Nolan, Sandra M. (Department: 1772)
Stock material or miscellaneous articles
Liquid crystal optical display having layer of specified...
With charge transferring layer of specified composition
C428S543000, C428S900000, C428S913000
Reexamination Certificate
active
06846522
ABSTRACT:
A decorative material is disclosed which comprises two polarizers and at least one phase-shifting plate placed between the polarizers. Each polarizer has a controlled direction of polarization axis. The phase-shifting plate represents a continuous layer of an optically anisotropic material containing regions differing by optical properties.
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Derwent abstract Acc. No. 1999-600961; WeekL 20172 “Light Polarizer for e.g. Liquid Crystal Display” Oct. 2, 2001.
Bobrov Yuri A.
Ignatov Leonid Y.
Khan Ir Gvon
Dorsey & Whitney LLP
Nolan Sandra M.
Optiva, Inc.
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