Polyimide dielectric layer

Details Polyimide dielectric layer Polyimide dielectric layer

1998-05-05

1999-10-19

Hampton-Hightower, P.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528125, 528128, 528170, 528172, 528173, 528174, 528176, 528185, 528188, 528220, 528229, 528350, 428 1, 4284735, C08G 7310, B32B 2700

Patent

active

059690887

ABSTRACT:
An angularity enhancement layer in a liquid crystal display, which display comprises a liquid crystal cell, wherein the angularity enhancement layer includes a negative birefringent polyimide layer comprising a plurality of structural units having pendant fluorene groups, said angularity enhancement layer being disposed on at least one surface of said liquid crystal cell. A liquid crystal display can comprise an angularity enhancement construction of the invention which comprises a polyimide layer.

REFERENCES:
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patent: 5055616 (1991-10-01), Burgoyne, Jr. et al.
patent: 5196953 (1993-03-01), Yeh et al.
patent: 5344916 (1994-09-01), Harris
patent: 5480964 (1996-01-01), Harris et al.
patent: 5750641 (1998-05-01), Ezzell et al.
Langsam et al., "Effects of Diamine Monomer Structure of the Gas Permeability of Polyimide, I. Bridged Diamines," Journal of Polymer Science, Part A, vol. 31, pp. 909-921 (1993). The Month in the Publication Date is Not Available.

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