Liquid crystal device

Details Liquid crystal device Liquid crystal device

1993-08-04

1994-06-21

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 54, 359 75, 359 76, 345 63, G02F 11343

Patent

active

053232534

ABSTRACT:
A liquid crystal display panel includes a pair of substrates having thereon scanning electrodes and data electrodes so as to form an electrode matrix, and a chiral smectic liquid crystal disposed between the scanning electrodes and data electrodes to form a plurality of smectic layers each including a plurality of liquid crystal molecules. The scanning electrodes and data electrodes are driven to define an effective display region and a frame-like fixed or semi-fixed pattern display region disposed outside the effective display region and extending along at least one side of the display panel. The smectic layers of the chiral smectic liquid crystal are aligned to extend in a direction which is non-parallel with the extension of the frame-like fixed or semi-fixed pattern display region so as to obviate the occurrence of cell thickness irregularity and liquid crystal voids.

REFERENCES:
patent: 5016989 (1991-05-01), Okada
patent: 5029987 (1991-07-01), Shinomiya
patent: 5061047 (1991-10-01), Bradshaw et al.
patent: 5109294 (1992-04-01), Hanyu et al.
patent: 5124820 (1992-06-01), Tsuboyama et al.

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