Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2006-02-28
2006-02-28
Nguyen, Dung T. (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S106000
Reexamination Certificate
active
07006182
ABSTRACT:
In a transmission/reflection combination type LCD that includes a CF substrate having a counter electrode part; a TFT substrate having a reflection pixel electrode part and a transmission pixel electrode part and disposed to oppose the CF substrate; and a liquid crystal layer interposed between these substrates, each pixel has a reflection region and a transmission region, and includes a convex for making the thickness of the liquid crystal layer smaller in the reflection region than in the transmission region. The convex is provided not on the TFT substrate but on the CF substrate, so that the downstream end of the convex can be disposed in a position shifted toward the upstream side along the rubbing direction relatively to the reflection pixel electrode part disposed on the TFT substrate. Accordingly, lowering of display quality in the transmission region due to a domain formed in a region of the liquid crystal layer correspondingly to a shade portion shaded from the rubbing processing with the convex can be suppressed without sacrificing the numerical aperture of the transmission region.
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Kikuchi Katsuhiro
Konishi Ikuji
Suenaga Kanae
Tanaka Toshiyuki
Nixon & Vanderhye P.C.
Sharp Kabushiki Kaisha
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