Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1998-06-02
1999-11-23
Dudek, James A.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349118, 349121, G02F 11335, G02F 11347
Patent
active
059909978
ABSTRACT:
A normally white (NW) twisted nematic (TN) 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 located on opposite sides of the liquid crystal layer, 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 may also be provided on opposite sides of the LC layer. As a result of the particular orientations, alignments, and retardation values described in different embodiments herein, the display exhibits improved contrast and/or reduced inversion, often in the same viewing areas.
REFERENCES:
patent: 5430565 (1995-07-01), Yamanouchi et al.
patent: 5504603 (1996-04-01), Winker et al.
patent: 5557434 (1996-09-01), Winker et al.
patent: 5559618 (1996-09-01), Mori
patent: 5570214 (1996-10-01), Abileah et al.
patent: 5576861 (1996-11-01), Abileah et al.
patent: 5583677 (1996-12-01), Ito et al.
patent: 5583679 (1996-12-01), Ito et al.
patent: 5589963 (1996-12-01), Gunning, III et al.
patent: 5594568 (1997-01-01), Abileah et al.
patent: 5612801 (1997-03-01), Winker
patent: 5619352 (1997-04-01), Koch et al.
patent: 5638200 (1997-06-01), Xu
patent: 5777709 (1998-07-01), Xu
patent: 5859681 (1999-01-01), VanderPloeg et al.
Jones Michael R.
VanderPloeg John A.
Dudek James A.
Duong Tai V.
OIS Optical Imaging Systems, Inc.
Rhoa Joseph A.
LandOfFree
NW twisted nematic LCD with negative tilted retarders for improv does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with NW twisted nematic LCD with negative tilted retarders for improv, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and NW twisted nematic LCD with negative tilted retarders for improv will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1227936