Buff-free liquid crystal alignment using poly(ionomer) coatings

Details Buff-free liquid crystal alignment using poly(ionomer) coatings Buff-free liquid crystal alignment using poly(ionomer) coatings

2005-09-13

2005-09-13

Wu, Shean C. (Department: 1756)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

Alignment layer of specified composition

C252S299010, C252S299500, C349S123000

Reexamination Certificate

active

06942905

ABSTRACT:
The present invention consists of materials and a processing method for coating rigid-rod poly(ionomers) or salts thereof, in a solvent system, directionally on charged surfaces resulting in the formation of liquid crystal display surfaces with planar alignment and pretilt.

REFERENCES:
patent: 5639398 (1997-06-01), Rhee et al.
patent: 5731050 (1998-03-01), Kotsubo et al.
Gohy et al., “Synthesis and Preliminary Characterization of Model Liquid Crystalline Ionomers”, Marcomoleculaes 1996, 29, pp. 3376-3383, 1996.
Cheng et al., “Novel Ion Containing Liquid Crystals and Liquid Crystalline Main Chain Polymers Based on Trans-1,2-Bis(4-Pyridyl Ethylene Mesogen”, Mol. Cryst. Liq. Cryst., 1995, vol. 269, pp. 1-28, 1995.

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