Liquid crystal display device

Details Liquid crystal display device Liquid crystal display device

1993-06-16

1996-08-20

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359102, 359 99, 359 53, G02F 11335, G02F 11347

Patent

active

055484263

ABSTRACT:
A polarizer is arranged on the incident side of a TN type liquid crystal cell in which the arrangement of liquid crystal molecules is twist-aligned through substantially 90.degree. in a direction from one substrate to the opposite substrate and the value of a product .DELTA.n.sub.c.d.sub.c of a refractive index anisotropy .DELTA.n.sub.c and a gap d.sub.c is set within a range of 300 to 600 nm, and an analyzer is arranged on the exit side of the liquid crystal cell. A twist-aligned retardation plate, in which the arrangement of polymer molecules is twist-aligned through 90.degree. in a direction opposite to the twist direction of the twist orientation of the liquid crystal molecules and the value of .DELTA.n.d ranges between 100 and 600 nm, is arranged between the liquid crystal cell and the analyzer.

REFERENCES:
patent: 4443065 (1984-04-01), Funada et al.
patent: 5119216 (1992-06-01), Wada et al.
patent: 5124824 (1992-06-01), Kozaki et al.
patent: 5142393 (1992-08-01), Okumura et al.
patent: 5241408 (1993-08-01), Ishikawa et al.
patent: 5308535 (1994-05-01), Scheuble et al.
patent: 5326496 (1994-07-01), Iida et al.
H. Hatoh et al; "Improvement of Viewing Angle Characteristics In a Twisted-Nematic Liquid-Crystal Display By Using a Cholesteric Liquid-Crystal Compensation Layer"; Apr. 13, 1992; pp. 1806-1808; Apply. Phys. Lett. 60 (15), No. 15.
Patent Abstracts of Japan, vol. 16, No. 390 & JP-A-04127125 (Casio).
Patent Abstracts of Japan, vol. 13, No. 508 & JP-A-01206318 (Matsushita).
Patent Abstracts of Japan, vol. 12, No. 25 & JP-A-62180328 (Konishiroku Photo).
Patent Abstracts of Japan, vol. 16, No. 139 & JP-A-04000412 (Ricoh).
Patent Abstracts of Japan, vol. 14, No. 512 & JP-A-02214815 (Seiko Epson).

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2334456