Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – Alignment layer of specified composition
Reexamination Certificate
2007-01-04
2009-12-01
Visconti, Geraldina (Department: 1795)
Stock material or miscellaneous articles
Liquid crystal optical display having layer of specified...
Alignment layer of specified composition
C428S001250, C428S001260, C430S020000, C430S270100, C252S299010
Reexamination Certificate
active
07625611
ABSTRACT:
The present invention to a composition for liquid crystal aligning comprising an oligoimide or oligoamic acid, which comprises a thermocurable or photocurable functional group on at least one end of the oligoimide or oligoamic acid backbone, a liquid crystal aligning layer prepared from the same, and a liquid crystal display comprising the same. The composition for liquid crystal aligning according to the present can minimize the generation of the decomposed by-products, which had been generated upon the use of polyimides, by using an oligoimide or oligoamic acid on at least one end of the backbone, instead of the conventional polyimides and has an excellent effect of improvement in alignment property, thermal stability, and image sticking.
REFERENCES:
patent: 5607732 (1997-03-01), Miyamoto et al.
patent: 6218501 (2001-04-01), Choi et al.
patent: 6808766 (2004-10-01), Miyama et al.
patent: 2005-037920 (2005-02-01), None
patent: 10-2004-0108129 (2004-12-01), None
patent: WO 2004/072719 (2004-08-01), None
Jo Jung-Ho
Kim Kyung-Jun
Kim Sang-Kook
Lee Yun-Jeong
Oh Dong-Hyun
LG Chem. Ltd.
McKenna Long & Aldridge LLP
Visconti Geraldina
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