Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2007-10-30
2010-11-23
Kim, Richard H (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S128000
Reexamination Certificate
active
07839472
ABSTRACT:
Disclosed herein is a liquid crystal device including:first and second substrates which face each other; a liquid crystal layer interposed between the first substrate and the second substrate; a reflection display region which is provided in one region of a sub-pixel configuring a control unit of a driving display by the first and second substrates with the liquid crystal layer interposed therebetween and performs a display by reflected light; a transmission display region which is provided in the other region of the sub-pixel and performs a display transmitted light; a layer thickness adjustment film which is provided on the second substrate in correspondence with the reflection display region and defines the thickness of the liquid crystal layer to be different from that in the transmission display region; and an alignment film which is provided between the second substrate and the liquid crystal layer so as to cover the layer thickness adjustment film and is subjected to a rubbing process, wherein the layer thickness adjustment film has a step difference surface at a boundary between the reflection display region and the transmission display region, and, when the rubbing process is performed in a direction opposed to the step difference surface and an angle between an extending direction of the step difference surface and a rubbing direction is α, a relationship of 70°≦α≦110° is satisfied.
REFERENCES:
patent: 7486351 (2009-02-01), Itou et al.
patent: 7616279 (2009-11-01), Jang et al.
patent: 2007/0046879 (2007-03-01), Hirota et al.
patent: A 2004-177897 (2004-06-01), None
patent: A 2005-338256 (2005-12-01), None
patent: A 2005-338264 (2005-12-01), None
K&L Gates LLP
Kim Richard H
Sony Corporation
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