Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2007-09-25
2007-09-25
Qi, Mike (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S114000, C349S012000, C349S117000
Reexamination Certificate
active
10690388
ABSTRACT:
A display device displays images with reduced glare from external incident light. The device includes a back light located on a bottom surface of the display device to provide internal light. Moreover, the device includes an internal circular X-polarizer located external to the back light to circularly polarize internal light. In addition, the device includes a mirror to reflect external incident light. Furthermore, the device includes a liquid crystal display located external to the mirror and the internal circular X-polarizer to display images. The device also includes an external circular X-polarizer located external to the liquid crystal display to circularly polarize external incident light, and absorb reflected external incident light and polarized internal light.
REFERENCES:
patent: 4093356 (1978-06-01), Bigelow
patent: 4991941 (1991-02-01), Kalmanash
patent: 5548108 (1996-08-01), Moldskred et al.
patent: 6091462 (2000-07-01), Sharp et al.
patent: 6462805 (2002-10-01), Wu et al.
patent: 6618113 (2003-09-01), Ulrich et al.
patent: 6628369 (2003-09-01), Kumagai et al.
patent: 6642977 (2003-11-01), Kotchick et al.
patent: 6707519 (2004-03-01), Okumura et al.
patent: 6738117 (2004-05-01), Minakuchi
patent: 6801283 (2004-10-01), Koyama et al.
patent: 6853421 (2005-02-01), Sakamoto et al.
patent: 6891584 (2005-05-01), Kashima
patent: 2002/0012085 (2002-01-01), Honda et al.
patent: 2002/0030776 (2002-03-01), Khan et al.
patent: 2003/0001993 (2003-01-01), Iijima
patent: 2004/0257498 (2004-12-01), Usaka et al.
Gurevich Vladimir
Krichever Mark
Fay Kaplun & Marcin LLP
Qi Mike
Symbol Technologies Inc.
LandOfFree
Method and system for improving the contrast of LCDs using... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for improving the contrast of LCDs using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for improving the contrast of LCDs using... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3728315