Active-matrix liquid crystal display

Details Active-matrix liquid crystal display Active-matrix liquid crystal display

2004-06-24

2009-11-10

Sample, David R (Department: 1794)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

C428S001250, C428S001260, C349S123000, C349S135000

Reexamination Certificate

active

07615260

ABSTRACT:
An active-matrix liquid crystal display device includes a pair of substrates, a liquid crystal layer disposed between the pair of substrates, a group of electrodes for applying to the liquid crystal layer an electric field substantially parallel to the substrate plane and a plural number of active elements being formed on one of the pair of substrates, and an alignment layer disposed between the liquid crystal layer and at least one of the pair of substrates. The alignment layer is made from polyamic acid obtained by reacting a diamine with an acid anhydride, and the acid anhydride is at least one member selected from the group consisting of 1,2,3,4-cyclopentanetetracarboxylic acid dianhydride, 1,2,3,4-butanetetracarboxylic acid dianhydride, and 1,2,3,4-cyclobutanetetracarboxylic acid dianhydride.

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JPO Machine English Translation of JP 06-160878, Kondo et al., Jun. 7, 1994.

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