LCD device having a plurality of switching elements divided into

Details LCD device having a plurality of switching elements divided into LCD device having a plurality of switching elements divided into

1996-03-27

1997-08-05

Gross, Anita Pellman

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349159, G02F 11343, G02F 11333

Patent

active

056547838

ABSTRACT:
An optical switching element having a variable optical path length layer whose optical path length is varied and whose refractive index anisotropy is controlled by application of an external field; external field application device for applying the external field to the variable optical path length layer; a first non-varying optical path length layer formed at at least one surface of surfaces of the variable optical path length layer in a direction of thickness thereof, and having a refractive index which is greater than a maximum refractive index of the variable optical path length layer; and a second non-varying optical path length layer formed at at least one surface of the surfaces of the variable optical path length layer in the direction of thickness thereof, and having a refractive index which is less than a minimum refractive index of the variable optical path length layer. By controlling refractive index anisotropy of the variable optical path length layer, natural light can be modulated. Further, due to interference effects of the first and second non-varying optical path length layers, incident light can be controlled at a high contrast ratio especially in cases in which a specific wavelength is targeted. Accordingly, incident light can be used efficiently, and a good switching characteristic can be obtained.

REFERENCES:
patent: 3736047 (1973-05-01), Gelber et al.
patent: 4147409 (1979-04-01), Apfel
patent: 4183630 (1980-01-01), Funada et al.
patent: 4529272 (1985-07-01), Kruger et al.
patent: 4632514 (1986-12-01), Ogawa et al.
patent: 5035490 (1991-07-01), Hubby, Jr.
patent: 5040875 (1991-08-01), Noguchi
patent: 5150235 (1992-09-01), Haim et al.
patent: 5153754 (1992-10-01), Whetten
patent: 5187604 (1993-02-01), Taniguchi et al.
patent: 5532850 (1996-07-01), Someya et al.
"Thin-Film Optical Filters", H.A. MacLeod, Nikkan Industrial Press, Nov. 3, 1989, pp. 47-51.

Affiliated with

Also associated with

Rating

LCD device having a plurality of switching elements divided into does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with LCD device having a plurality of switching elements divided into, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and LCD device having a plurality of switching elements divided into will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1078526