Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1997-07-02
1998-12-08
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349113, 349117, G02F 11335
Patent
active
058477896
ABSTRACT:
A liquid crystal display device of high display quality and superior sharpness is presented. Large bumps and small bumps made of synthetic resin material are formed on a glass substrate. Covering these bumps and filling the recesses among the bumps, a smoothing film is formed. On the smoothing film, a reflective metal film made of metal material such as aluminum is formed. This reflective metal film is formed in plural rows in a longitudinal band form. On the glass substrate, the bumps, smoothing film, and reflective metal film are combined to compose a reflector. An orientation film is formed on the reflective metal film. By the electric field applied in the liquid crystal layer so as to be in the light shielding state when the retardation .DELTA.n.sub.1 d.sub.1 of the liquid crystal cell and the retardation .DELTA.n.sub.2 d.sub.2 of the substrate possessing optical phase compensating function satisfy .vertline..DELTA.n.sub.1 d.sub.1 -.DELTA.n.sub.2 d.sub.2 .vertline./.lambda.=0.25+m/2.+-.0.1 (m=0, 1, 2, - - - ), and in the light transmitting state when satisfying .vertline..DELTA.n.sub.1 d.sub.1 -.DELTA.n.sub.2 d.sub.2 .vertline..lambda.=m/2.+-.0.1 (m=0, 1, 2, - - - ), by crossing the director direction of the liquid crystal molecule of the liquid crystal cell and the slow direction of the substrate possessing optical phase compensating function almost orthogonally, the value of .vertline..DELTA.n.sub.1 d.sub.1 -.DELTA.n.sub.2 d.sub.2 .vertline./.lambda. is varied, and these two states are used to present a display, and the absorption axis or transmission axis of the polarizer is set at 30.degree. to 60.degree. to the director direction of the liquid crystal molecule of the liquid crystal cell.
REFERENCES:
patent: 4266859 (1981-05-01), Togashi
patent: 4431272 (1984-02-01), Yazawa et al.
patent: 4456336 (1984-06-01), Chung et al.
patent: 4519678 (1985-05-01), Komatsubara et al.
patent: 4701028 (1987-10-01), Clerc et al.
patent: 4844569 (1989-07-01), Wada et al.
patent: 4952029 (1990-08-01), Hayashi et al.
patent: 4991940 (1991-02-01), Dalisa et al.
patent: 5126868 (1992-06-01), Kizaki et al.
patent: 5139340 (1992-08-01), Okumura
patent: 5175638 (1992-12-01), Kanemoto et al.
patent: 5220444 (1993-06-01), Mitsui et al.
patent: 5287207 (1994-02-01), Mulkens et al.
patent: 5418635 (1995-05-01), Mitsui et al.
patent: 5559617 (1996-09-01), Mitsui et al.
patent: 5640259 (1997-06-01), Sawayama et al.
patent: 5684551 (1997-11-01), Nakamura et al.
"Liquid Crystal Device Handbook" compiled by Committee 142 of Japan Society for the Promotion of Science, 1989, pp. 329-346.
Halliday and Resnick, Physics, Part 2, 3rd Edition, (1978), pp. 994-1015, 1069-1086.
Patent Abstracts of Japan, vol. 6, No. 75 (P-114)(May 12, 1982), Abstract of JP 57-13422 (Jan. 23, 1982).
Kimura Naofumi
Mitsui Seiichi
Nakamura Kozo
Seki Hidehiro
Uchida Tatsuo
Sharp Kabushiki Kaisha
Sikes William L.
Ton Toan
LandOfFree
Reflective type liquid crystal display device 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 type liquid crystal display device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reflective type liquid crystal display device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-183417