Liquid crystal cells – elements and systems – Cell containing liquid crystal of specific composition – In smectic phase
Patent
1998-05-06
2000-07-18
Dudek, James A.
Liquid crystal cells, elements and systems
Cell containing liquid crystal of specific composition
In smectic phase
349173, C09K 1902
Patent
active
060914785
ABSTRACT:
A liquid crystal layer is sealed between a pair of substrates on which opposite electrodes are formed. The liquid crystal layer is formed of a liquid crystal which exhibits an antiferroelectric phase while the liquid crystal is in a bulk state. When the liquid crystal is sealed between the substrates as the liquid crystal layer, the liquid crystal exhibits a ferrielectric phase wherein liquid crystal molecules aligned in a first state of being aligned in a first direction and liquid crystal molecules aligned in a second state of being aligned in a second direction are present in predetermined order. In accordance with the polarity and magnitude of a voltage applied between the opposite electrodes, the ratio of the number of liquid crystal molecules aligned in the first state to the number of liquid crystal molecules aligned in the second state varies such that the direction of the director of the liquid crystal layer varies continuously. Gradation display can be achieved by detecting a variation in the director through the use of a pair of polarization plates arranged in a crossed Nicols fashion.
REFERENCES:
patent: 4941736 (1990-07-01), Taniguchi et al.
patent: 5151804 (1992-09-01), Verhulst et al.
patent: 5214523 (1993-05-01), Nito et al.
patent: 5307189 (1994-04-01), Nishiki et al.
patent: 5316694 (1994-05-01), Murashiro et al.
patent: 5338240 (1994-08-01), Kim
patent: 5353136 (1994-10-01), Escher
patent: 5377028 (1994-12-01), Yoshida et al.
patent: 5393460 (1995-02-01), Okabe et al.
patent: 5436037 (1995-07-01), Okabe et al.
patent: 5534190 (1996-07-01), Johno et al.
patent: 5620756 (1997-04-01), Bach et al.
patent: 5631752 (1997-05-01), Tanaka
patent: 5728864 (1998-03-01), Motoyama et al.
patent: 5729307 (1998-03-01), Koden et al.
patent: 5828434 (1998-10-01), Koden et al.
patent: 5847799 (1998-12-01), Tanaka et al.
patent: 5861109 (1999-01-01), Goodby et al.
Jpn. J. Appl. Phys. vol. 36 (1997) pp. 6847-6852, Part 1, No. 11.
Ogura Jun
Takei Manabu
Tanaka Tomio
Yoshida Tetsushi
Casio Computer Co. Ltd.
Dudek James A.
Eisenhut Heidi L.
LandOfFree
Liquid Crystal Display device using liquid crystal having ferrie 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 using liquid crystal having ferrie, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid Crystal Display device using liquid crystal having ferrie will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2042385