Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – Alignment layer of specified composition
Reexamination Certificate
2005-02-08
2005-02-08
Pyon, Harold (Department: 1772)
Stock material or miscellaneous articles
Liquid crystal optical display having layer of specified...
Alignment layer of specified composition
C427S163300, C349S123000, C349S124000, C349S129000, C349S130000, C349S134000, C349S135000, C349S136000, C359S494010
Reexamination Certificate
active
06852374
ABSTRACT:
A liquid crystal display device includes two substrates, a liquid crystal layer sandwiched between the substrates and two alignment films, each being provided on one surface of associated one of the substrates so as to face the liquid crystal layer. The device defines multiple picture elements. At least one of the two alignment films is made of a polymer material that includes a main chain, an atomic group having a bond that is selectively cut when exposed to an actinic ray and a side chain bonded to the main chain via the atomic group. The polymer material with the side chain can give a pretilt angle of greater than 85 degrees but 90 degrees or less to liquid crystal molecules. The polymer material without the side chain can give a pretilt angle of 2 degrees to 15 degrees to the liquid crystal molecules.
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Nagae et al., SID 2000 pp. 26-29 (cited in [0008], p. 4 of the specification).
Fujii Akiyoshi
Kawamura Tadashi
Mizusaki Masanobu
Yamada Yuichiro
Hon Sow-Fun
Nixon & Vanderhye P.C.
Pyon Harold
Sharp Kabushiki Kaisha
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