Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2005-08-23
2005-08-23
Kim, Robert H. (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
Reexamination Certificate
active
06933992
ABSTRACT:
A polarizer is provided on the upper side of a liquid crystal panel, and a light scattering member and a polarized light separator are provided in turn on the lower side of the liquid crystal panel. Of light incident on the upper side of the polarized light separator, a linearly polarized light component parallel to the drawings is transmitted, a linearly polarized light component perpendicular to the drawings is reflected, and for light incident on the lower side thereof, a linearly polarized light component parallel to the drawings can be emitted upward. When the switch is off, the external light incident on the display device is reflected by the polarized light separator to obtain a bright display, and when the switch is on, the incident external light is transmitted through the polarized light separator to obtain a dark display. When the switch is off, light from a light source is transmitted through the polarized light separator and absorbed by the polarizer to obtain dark display, and when the switch is on, the light is transmitted through the polarized light separator and through the polarizer to obtain a bright display.
REFERENCES:
patent: 4315258 (1982-02-01), McKnight et al.
patent: 4519679 (1985-05-01), Horikiri et al.
patent: 4974219 (1990-11-01), Korth
patent: 5686979 (1997-11-01), Weber et al.
patent: 5691788 (1997-11-01), Kim
patent: 5691790 (1997-11-01), Havens et al.
patent: 5777594 (1998-07-01), Miyawaki
patent: 5815228 (1998-09-01), Flynn
patent: 5825542 (1998-10-01), Cobb, Jr. et al.
patent: 5841494 (1998-11-01), Hall
patent: 6008871 (1999-12-01), Okumura
patent: 6025897 (2000-02-01), Weber et al.
patent: 6091382 (2000-07-01), Shioya et al.
patent: 6118504 (2000-09-01), Iijima et al.
patent: 6124971 (2000-09-01), Ouderkirk et al.
patent: 6233029 (2001-05-01), Iijima et al.
patent: 6285422 (2001-09-01), Maeda et al.
patent: A-57-49271 (1955-09-01), None
patent: A-58-24122 (1983-02-01), None
patent: A-2-178627 (1990-07-01), None
patent: A-7-36032 (1995-02-01), None
patent: A-7-77691 (1995-03-01), None
patent: A-9-506984 (1997-07-01), None
patent: A-9-506985 (1997-07-01), None
patent: WO 95/17303 (1995-06-01), None
patent: WO 95/17691 (1995-06-01), None
patent: WO 95/17692 (1995-06-01), None
patent: WO 95/17699 (1995-06-01), None
patent: WO 95/27819 (1995-10-01), None
patent: WO 95/27919 (1995-10-01), None
patent: WO 96/19347 (1996-06-01), None
patent: WO 97/01439 (1997-01-01), None
patent: WO 97/01440 (1997-01-01), None
patent: WO 97/01610 (1997-01-01), None
patent: WO 97/01726 (1997-01-01), None
patent: WO 97/01774 (1997-01-01), None
patent: WO 97/01778 (1997-01-01), None
patent: WO 97/01780 (1997-01-01), None
patent: WO 97/01781 (1997-01-01), None
patent: WO 97/01788 (1997-01-01), None
patent: WO 97/01789 (1997-01-01), None
patent: WO 97/07653 (1997-02-01), None
U.S. patent application Ser. No. 08/914,139, Application # patent: 6233029, Iijima et al. filed Aug. 19, 1997.
“Retroreflecting Sheet Polarizer,” M.F. Weber, SID 92 Digest, 1992, p. 427-429.
Maeda Tsuyoshi
Okumura Osamu
Di Grazio Jeanne A.
Kim Robert H.
Seiko Epson Corporation
LandOfFree
Transflective liquid crystal device with bright reflective... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transflective liquid crystal device with bright reflective..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transflective liquid crystal device with bright reflective... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3494637