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US 2008/0269458 A1Published application
Polyimide and liquid crystal alignment film thereof
AssigneeNational Taiwan University of Science and Technology
InventorsYaw-Terng Chern, Ya-Ting Wu, Jane-Jen Wang
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Abstract
The present invention provides a polyimide having the formula (II) formed by reacting a dianhydride with the diamine having the formula (I). The polyimide provided by the present invention serves as a material for preparing the liquid crystal aligning film, wherein the liquid crystal aligning film could achieve the pre-tilt angle of 88-90° by containing only less than 5% of the diamine having the formula (I), which could highly lower down the manufacturing cost.
Claims17
A chemical compound of formula (A):
Dependencies are inferred from the claim text.