Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1997-06-13
1999-04-20
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349118, 349119, 349121, G02F 11335
Patent
active
058951067
ABSTRACT:
A normally white (NW) twisted nematic liquid crystal display (LCD) outputs improved viewing characteristics which are defined by high contrast ratios and/or reduced inversion. The display includes a pair of negative tilted retarders (#2 and #6) located on one side of the liquid crystal layer (#10), each of the tilted retarders including a tilt or incline angle which varies throughout the thickness of the layer. Additionally, one or two negative uniaxial or biaxial retarders (#4 and #7) are provided on the same side of the liquid crystal layer as the tilted retarders. As a result of the particular orientations, alignments, and retardation values described in the different embodiments, the display exhibits improved contrast and reduced inversion.
REFERENCES:
patent: 5227903 (1993-07-01), Miyazawa et al.
patent: 5570214 (1996-10-01), Abileah et al.
patent: 5583679 (1996-12-01), Ito et al.
patent: 5594568 (1997-01-01), Abileah et al.
patent: 5638200 (1997-06-01), Xu
patent: 5777709 (1998-07-01), Xu
Patent Abstracts of Japan, 07253573, Mar. 10, 1995.
WO96/15473, Pub. Date May 23, 1996 -PCT.
Brinkley Patrick F.
Jones Michael R.
VanderPloeg John A.
Xu Gang
Horney Kari
OIS Optical Imaging Systems, Inc.
Rhoa Joseph A.
Sikes William L.
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