Liquid crystal aligning agent and liquid crystal display...

Compositions – Liquid crystal compositions – Containing nonchiral aligning agents

Reexamination Certificate

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Details

C428S001100, C428S001200, C428S001250, C428S001260, C428S001270, C252S299010

Reexamination Certificate

active

07074344

ABSTRACT:
The present invention provides a liquid crystal aligning agent which provides a liquid crystal alignment film having surface anchoring force and pretilt angle development stability by an optical aligning method. The liquid crystal aligning agent comprises a polymer having a photo-crosslinkable structure a structure having at least one group selected from the group consisting of a fluorine-containing organic group, an alkyl group having 10 to 30 carbon atoms and alicyclic organic group having 10 to 30 carbon atoms and optionally, (C) a thermally crosslinkable structure.

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Choi, Dong Hoon; Cha, Young Kwan; “Photo-alignment of low-molecular mass nematic liquid crystals on photoreactive polyimide and polymetacylate film by irradiation of a linearly polarized UV light”; Polymer Bulletin 48, 373-380 (2002).
English translation of Kunihiro et al.
U.S. Appl. No. 10/367,893, filed Feb. 19, 2003, Nakata et al.

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