Method of preparing or rubbing a substrate to be used in a LCD d

Details Method of preparing or rubbing a substrate to be used in a LCD d Method of preparing or rubbing a substrate to be used in a LCD d

1990-11-29

1992-05-19

Beck, Shrive

Coating processes

Solid particles or fibers applied

428 1, 427421, 427444, B05D 112, C09K 1956

Patent

active

051147483

ABSTRACT:
A method in which a liquid is sprayed through a nozzle to form minute droplets of substantially uniform size. These uniform droplets are sprayed into and frozen by a refrigeration medium, such as liquid nitrogen, to form uniform diameter frozen particles. The frozen particles are ejected onto the surface of a substrate used in a liquid crystal display device to orient the liquid crystal material applied to the surface.

REFERENCES:
patent: 4932168 (1990-06-01), Tada et al.
patent: 4974375 (1990-12-01), Tada et al.
Geary et al., "The Mechanism of Polymer Alignment of Liquid-Crystal Materials", Journal of Applied Physics, vol. 62, No. 10, Nov. 1987, pp. 4100-4108.
Dixon et al., "Alignment Mechanism in Twisted Nematic Layers", Applied Physics Letters, vol. 24, No. 2, Jan. 1974, pp. 47-49.
Matsuura et al., "Interaction Between Liquid Crystals and Treated Solid Surfaces; Single Crystallization", Tokyo University, Aug. 1983, pp. 132-139.

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