Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2005-04-25
2008-09-09
Duong, Thoi V (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
Reexamination Certificate
active
07423717
ABSTRACT:
A liquid crystal display device, which uses post-like spacers for eliminating local gap irregularity generation and permitting improvement of black view non-uniform irregularities and lower part gap irregularities, is disclosed. On an array side substrate201opposing first group post-like spacers, for each pixel, a step film100is formed by adequately combining by one or more floating inorganic film layers (for instance chromium layers41and43, an aluminum layer42and am amorphous silicon layer31). The first gap post-like spacers304are each in contact with the step film100at all times. The inorganic step film100is not formed on each of parts of the array side substrate201corresponding to second group port-like spacers304, respectively, thus providing a gap. The thickness of the step film100is preferably set to 2,000 Å to 5,000 Å.
REFERENCES:
patent: 6972822 (2005-12-01), Miyashita
patent: 7304712 (2007-12-01), Sawasaki et al.
patent: 2004/0114087 (2004-06-01), Cho et al.
patent: 2002-182220 (2002-06-01), None
patent: 2002-341354 (2002-11-01), None
Duong Thoi V
McGinn IP Law Group PLLC
NEC LCD Technologies Ltd.
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