Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2006-07-04
2006-07-04
Dudek, James A. (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S114000
Reexamination Certificate
active
07072015
ABSTRACT:
The present invention provides a high-contrast reflective display and transmissive display with a wide viewing angle in a transflective liquid crystal display device having reflective and transmissive structures. In such a display, each of dots can contain a reflective display region for reflective display and a transmissive display region for transmissive display. A liquid crystal layer can be composed of a nematic liquid crystal aligned substantially perpendicularly to substrates and having a negative dielectric anisotropy. A first retardation film having an optically negative uniaxiality, a second retardation film having an optically positive uniaxiality, and a first polarizer are arranged in that order outside an upper substrate, and a third retardation film having an optically negative uniaxiality, a fourth retardation film having an optically positive uniaxiality, a second polarizer, and illumination means are arranged in that order outside a lower substrate.
REFERENCES:
patent: 6081312 (2000-06-01), Aminaka et al.
patent: 6141075 (2000-10-01), Ohmuro et al.
patent: 6281956 (2001-08-01), Ohmuro et al.
patent: 6356325 (2002-03-01), Shimoshikiryo
patent: 6628359 (2003-09-01), Terashita et al.
patent: 6642981 (2003-11-01), Ohmura et al.
patent: 6819379 (2004-11-01), Kubo et al.
patent: 2001/0048496 (2001-12-01), Baek
patent: 2001/0055082 (2001-12-01), Kubo et al.
patent: A 62-210423 (1987-09-01), None
patent: A 5-113561 (1993-05-01), None
patent: A 11-133413 (1999-05-01), None
patent: A 11-242226 (1999-09-01), None
patent: A 11-258605 (1999-09-01), None
patent: A 2001-109009 (2001-04-01), None
patent: A 2001-311948 (2001-11-01), None
patent: A 2002-55343 (2002-02-01), None
LandOfFree
Liquid crystal display device and electronic device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Liquid crystal display device and electronic device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid crystal display device and electronic device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3562747