Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2007-12-25
2007-12-25
Ton, Toan (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S113000, C349S124000, C349S128000, C349S143000, C349S178000
Reexamination Certificate
active
11291170
ABSTRACT:
It was found that the domain in which the disinclination was unstable was a domain located on the periphery of the pixel and in which the alignment orientation of the liquid crystal molecules within the pixel was different from the tilting orientation of the liquid crystal molecules due to the transverse electric field of the outer edge of the pixel and it is larger than 90°. As a result it was found that the liquid crystal within the pixel needed to be aligned in order to minimize the domain for the improvement in the property of withstanding vibrations, and a liquid crystal display panel more excellent in the property of withstanding vibrations could be realized by keeping the domain in which the disinclination was unstable near the short side of the pixel as shown inFIG. 25B. Therefore, in a liquid crystal display device of a reflection type, if the alignment process is carried out in the direction in which the pixel extends when the pixel has a strip-like shape, it is possible to realize a liquid crystal display of high quality, excellent in the property of withstanding vibrations, and having a high contrast ratio and high reflection (transmission) characteristics.
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Duong Tai
Greer Burns & Crain Ltd.
Sharp Kabushiki Kaisha
Ton Toan
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