Liquid crystal display device having switchable reflective...

Details Liquid crystal display device having switchable reflective... Liquid crystal display device having switchable reflective...

2005-01-11

2005-01-11

Chowdhury, Tarifur R. (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S114000

Reexamination Certificate

active

06842209

ABSTRACT:
A liquid crystal display device comprising a first polarizing sheet (16a), a color filter layer (6) formed on glass sheet (18), a second polarizing sheet (16b), three-layered HPDLC (17) formed below the liquid crystal layer (1) and acting as a reflective structural layer having a reflectivity changed electrically, and a backlight unit as the lowermost layer. Each layer of the three-layered HPDLC (17) is composed of a liquid crystal droplet layer polymer layer and reflects blue, green, red by Bragg reflection. When voltage is applied to the three-layered HPDLC (17), the reflectivity of liquid crystal droplet layer of each layer change, so that the HPDLC can be made transparent by equalizing the reflectivities of the liquid crystal liquid droplet layer to those of polymer layers.

REFERENCES:
patent: 4059916 (1977-11-01), Tachihara et al.
patent: 4844569 (1989-07-01), Wada et al.
patent: 5132830 (1992-07-01), Fukutani et al.
patent: 5663816 (1997-09-01), Chen et al.
patent: 5668649 (1997-09-01), Suzuki et al.
patent: 5686979 (1997-11-01), Weber et al.
patent: 5841492 (1998-11-01), Iwauchi et al.
patent: 5841494 (1998-11-01), Hall
patent: 6570633 (2003-05-01), Stephenson
patent: 6690438 (2004-02-01), Sekiguchi
patent: 8-076104 (1996-03-01), None
patent: 8-179320 (1996-07-01), None
patent: 8-304848 (1996-11-01), None
patent: 9-080432 (1997-03-01), None
patent: 10-253948 (1998-09-01), None
patent: 11-119026 (1999-04-01), None
patent: 11-142810 (1999-05-01), None
patent: 11-316373 (1999-11-01), None
patent: 2000-122059 (2000-04-01), None
patent: 2001-4997 (2001-01-01), None
JP 08-179320, Jul. 12, 1996, Kato et al., machine-translation.

Affiliated with

Also associated with

Rating

Liquid crystal display device having switchable 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 Liquid crystal display device having switchable reflective..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid crystal display device having switchable reflective... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3409564