Polyimide angularity enhancement layer

Details Polyimide angularity enhancement layer Polyimide angularity enhancement layer

1998-05-05

2000-06-13

Thomas, Alexander

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

With viewing layer of specified composition

428 127, G02F 11335

Patent

active

060747099

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.

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patent: 5480964 (1996-01-01), Harris et al.
patent: 5612450 (1997-03-01), Mizushima et al.
Langsam et al., "Effects of Diamine Monomer Structure on the Gas Permeability of Polyimide, I. Bridged Diamines," Journal of Polymer Science, Part A, vol. 31, p. 909-921 (Dec. 1993).

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