Compensating film for a liquid crystal display and an OCB mode l

Details Compensating film for a liquid crystal display and an OCB mode l Compensating film for a liquid crystal display and an OCB mode l

1998-08-20

2000-09-26

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349128, 349181, 349182, 428 1, G02F 11335, G02F 11337

Patent

active

061249130

ABSTRACT:
As a compensator for use in an OCB mode liquid crystal display there is provided a compensating film capable of making color compensation and attaining such a viewing angle expansion as has not been attainable heretofore. A compensating film for a liquid crystal display, constituted by at least one layer of a compensating film to be used in an OCB mode liquid crystal display, the compensating film being formed by a discotic liquid crystalline material having a fixed orientation form of a discotic liquid crystal, the compensating film being disposed between a driving liquid crystal cell and a pair of upper and lower polarizing plates, and the orientation form being a hybrid orientation in which the angle between discotic liquid crystal directors near the upper interface of the film and the film plane and the angle between discotic liquid crystal directors near the lower interface of the film and film plane are different from each other.

REFERENCES:
patent: 5308535 (1994-05-01), Scheuble et al.
patent: 5855971 (1999-01-01), Kobori et al.
patent: 5883685 (1999-03-01), Mazaki et al.
Miyashita et al. (1995) "Wide-Viewing Angle Display Mode Using Bend Alignment Liquid Crystal Cell", Japanese Journal of Applied Physics, 34(2A):177-179.
Miyashita et al. (1993). "Wide Viewing Angle Display Mode for Active Matrix LCD Using Beind Alignment Liquid Crystal", Proc 13th IDRC (International Display Research Conference), Eurodispaly Strasbourg, France, pp. 149-152.

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