Liquid crystal display apparatus with optical compensation plate

Details Liquid crystal display apparatus with optical compensation plate Liquid crystal display apparatus with optical compensation plate

1996-06-28

1998-06-16

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349117, 349186, G02F 11335, G02F 113

Patent

active

057679371

ABSTRACT:
A first optical compensation plate consists of M (M being an integer equal to or greater than 2) optical compensation layers. A second optical compensation plate consists of N (N being an integer equal to or greater than 2) optical compensation layers. A liquid crystal display panel has (M+N) liquid crystal layers. The liquid crystal layers are made of materials having optically different polarities from those of the first and second optical compensation plates. Further, the direction of the optic axis of a j-th (j=1, 2, . . . , M) optical compensation layer from a first surface of the first optical compensation plate is substantially parallel to the direction of the optic axis of an (M-j+l)-th liquid crystal layer from the first optical compensation plate of the liquid crystal display panel at the time of voltage application, and the direction of the optic axis of an i-th (i=1, 2, . . . , N) optical compensation layer from a third surface of the second optical compensation plate is substantially parallel to the direction of the optic axis of an (M+N-i+l)-th liquid crystal layer from the first optical compensation plate of the liquid crystal display panel at the time of voltage application.

REFERENCES:
patent: 4973137 (1990-11-01), Kozaki
patent: 5032008 (1991-07-01), Yamamoto et al.
patent: 5166817 (1992-11-01), Ota et al.
New Normally White Negative Birefringence Film Compensated Twisted Nematic LCDs with Largest Viewing Angle Performance; H.L. Ong pp. 247-250.

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