Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2006-11-07
2006-11-07
Dudek, James A. (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
Reexamination Certificate
active
07133096
ABSTRACT:
A liquid crystal display device free from reduction of chromaticity and having a good image quality in comparison with a normally white mode semi-transmission liquid crystal display device even in a case of employing a normally black mode, able to secure a gap of a reflection portion able to suppress occurrence of defects, enabling a reduction of voltage, able to realize a reduction of power consumption, exhibiting a more natural color of the dark state of transmission, and able to improve the image quality, wherein a reflection portion and a transmission portion are provided in one pixel, a normally black mode which becomes a dark state when no voltage is supplied is employed, an orientation mode of the liquid crystals is a twist orientation, a polarization plate and one phase difference plate are provided on a viewing surface side, and a polarization plate is provided on a back surface side.
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Jisaki Makoto
Kabe Masaaki
Sakai Eiji
Takada Youko
Tatemori Shuichi
Dudek James A.
Sonnenschein Nath & Rosenthal LLP
Sony Corporation
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