Liquid crystal display device having polarization areas or orien

Details Liquid crystal display device having polarization areas or orien Liquid crystal display device having polarization areas or orien

1994-03-11

1995-07-18

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 78, 359 76, 359 67, G02F 11337, G02F 11335

Patent

active

054346878

ABSTRACT:
A liquid crystal display device comprises a substrate, two electrode-attached substrates formed by sequentially superposing electrode layers and orientation layers on the substrate and disposed so as to oppose the orientation layers to each other across a gap, and a liquid crystal composition placed in the gap and consequently interposed between the two electrode-attached substrates, which liquid crystal display device is characterized in that the orientation layers is furnished with multiply divided liquid crystal orientation areas and the orientation areas severally have directions of orientation set either in a radial pattern or in the shape of concentric rings.

REFERENCES:
patent: 4114990 (1978-09-01), Mash et al.
patent: 5020882 (1991-06-01), Makow
patent: 5069813 (1991-12-01), Patel
patent: 5097352 (1992-03-01), Takahashi et al.
patent: 5142394 (1992-08-01), Asada et al.

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