Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2005-12-06
2005-12-06
Nguyen, Dung T. (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S096000
Reexamination Certificate
active
06972816
ABSTRACT:
The present invention is related to a retardation device for a liquid crystal display and comprises: an upper retardation device, which has a plurality of retardation layers; a lower retardation device, which has a plurality of retardation layers as well; a LC cell layer, which is between the upper retardation device and the lower retardation device. The present invention adopts a set of retardation plates organized by the upper retardation device and the lower retardation device to apply on a MVA-LCD (Multi-domain Vertical Alignment Liquid Crystal Display) with features of high contrast and wide view angles to promote the contrast and the view angle.
REFERENCES:
patent: 5818559 (1998-10-01), Yoshida
patent: 6762811 (2004-07-01), Sasaki et al.
Hsu Jung-Hung
Tsou Chien-Wei
Wu Long-Hai
Kamrath Alan D.
Nguyen Dung T.
Nikolai & Mersereau , P.A.
Optimax Technology Corporation
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