Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2005-02-08
2005-02-08
Kim, Robert H. (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S113000, C349S114000
Reexamination Certificate
active
06853422
ABSTRACT:
A partially light-penetrative and partially light-reflective liquid crystal display (LCD) structure is disclosed. The LCD structure includes a top and a bottom substrate structures respectively including half wave plates; a light-penetrative electrode layer formed on a first portion of the bottom substrate structure; a dielectric layer formed on a second portion of the bottom substrate structure; a light-reflective electrode layer formed on the dielectric layer and connected to the light-penetrative electrode layer; and a liquid crystal layer disposed between the light-reflective and light-penetrative electrode layers and the top substrate structure. The thicknesses of the liquid crystal layer above the first and the second portions of the bottom substrate structure, respectively, are selected to allow the liquid crystal layer above the first portion to be equivalent to a half wave plate, and the liquid crystal layer above the second portion to be equivalent to a quarter wave plate.
REFERENCES:
patent: 6271905 (2001-08-01), Sekime et al.
patent: 6281952 (2001-08-01), Okamoto et al.
patent: 6295109 (2001-09-01), Kubo et al.
patent: 6330047 (2001-12-01), Kubo et al.
patent: 6380997 (2002-04-01), Sharp et al.
Duong Thoi V.
Kim Robert H.
Liu & Liu
Toppoly Optoelectronics Corp.
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