Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2005-12-20
2005-12-20
Ton, Toan (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S113000
Reexamination Certificate
active
06977702
ABSTRACT:
A device structure for single cell gap reflective and transflective liquid crystal displays (TF-LCDs). For an entirely reflective LCD, the imbedded wire-grid polarizer (WGP) serves as a polarization-dependent for the ambient light. For a transflective TF-LCD, the WGP only covers the reflective pixels. The disclosure also includes a method of using single cell gap liquid crystal displays (LCDs) without phase retardation films by providing a single cell gap LCD having reflective pixels and transmissive pixels, covering solely the reflective pixels, with at least one of: a wire grid polarizer and a broadband cholesteric reflector (BCR), reflecting ambient light off the reflective pixels; and passing back light through the transmissive pixels whereby the cell gap LCD obtains high contrast ratios without using phase retardation films.
REFERENCES:
patent: 4688897 (1987-08-01), Grinberg et al.
patent: 5764324 (1998-06-01), Lu et al.
patent: 5986730 (1999-11-01), Hansen et al.
patent: 6008871 (1999-12-01), Okumura
patent: 6108131 (2000-08-01), Hansen et al.
patent: 6124971 (2000-09-01), Ouderkirk et al.
patent: 6281952 (2001-08-01), Okamoto et al.
patent: 6295109 (2001-09-01), Kubo et al.
patent: 6330047 (2001-12-01), Kubo et al.
patent: 6341002 (2002-01-01), Shimizu et al.
Law Offices of Brian S. Steinberger , P.A.
Steinberger Brian S.
Ton Toan
University of Central Florida
LandOfFree
Reflective and transflective liquid crystal display using a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reflective and transflective liquid crystal display using a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reflective and transflective liquid crystal display using a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3490330