Liquid crystal display including concentric shapes and radial sp

Details Liquid crystal display including concentric shapes and radial sp Liquid crystal display including concentric shapes and radial sp

1995-10-30

1997-03-11

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349128, 349129, G02F 11337

Patent

active

056107439

ABSTRACT:
A liquid crystal display having an improved angular distribution for emerging radiation is described, together with a method for manufacturing it. This was achieved by forming patterns, one per pixel, of concentric annuli in one of the orientation layers and radial spokes in the other orientation layer. This guarantees that there is a wide range in the orientations of the twisted nematics, leading to an improved angular distribution for the emerging radiation. The invention is applicable to both monochrome as well as color displays and may also be used as a way to adjust, during manufacturing, the angular distribution of the emerging light.

REFERENCES:
patent: 5107356 (1992-04-01), Castleberry
patent: 5124824 (1992-06-01), Kozaki et al.
patent: 5249070 (1993-09-01), Takano
patent: 5434687 (1995-07-01), Kawata et al.

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