Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2005-01-13
2008-09-02
Qi, Mike (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S130000, C349S155000
Reexamination Certificate
active
07420633
ABSTRACT:
The invention relates to a reflective or reflective/transmissive liquid crystal display having a light-reflecting layer and provides a low-cost light crystal display having high controllability of the thickness of a liquid crystal layer. The liquid crystal display has a wrinkly irregular layer having a wrinkly irregular surface formed such that it follows irregularity controlling structures on a glass substrate. The liquid crystal display also has a plurality of holding protrusions which are formed to protrude from an opposite glass substrate and which hold the two substrates so as to leave a predetermined gap between them. The holding protrusions which have substantially the same length are formed at predetermined intervals such that they contact the tops of convexes of the wrinkly irregular layer, which makes it possible to control the thickness of the liquid crystal layer into agreement with a design value easily.
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Kubo et al,; “Development of Advanced TFT with Good Legibility under any Intensity of Ambient Light”; IDW '99 Digest; pp. 183-186.
Fujitsu Limited
Greer Burns & Crain Ltd.
Qi Mike
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