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US 2006/0149028 A1Published application
Diamine compound containing triazine group, polyamic acid synthesized from the diamine compound and lc alignment film prepared from the polyamic acid
AssigneeCheil Industries Inc.
InventorsJae Oh, Bum Lee, Moo Lee, O Bum Kwon, Joon Oh, Dong Won Park, Chul Kim
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Abstract
Diamine compound containing specific triazine group, polyamic acid obtained by reacting the diamine compound and tetracarboxylic dianhydride, and liquid crystal alignment film obtained by coating and imidizing the polyamic acid. The liquid crystal alignment film has good heat-resistance, high transparency in visible light region and improved voltage holding ratio. Also, pretilt angle is easily controlled over broad range.
Claims11
A diamine compound containing a triazine moiety, represented by Formula 1 below:
- wherein A is a direct bond, —O— or —COO—;
- B is a direct bond, —O—, —COO—, —CONH— or —OCO—;
- and C is a C1˜30 linear, branched or cyclic monovalent organic group, or a combined form thereof.
Dependencies are inferred from the claim text.