Projection type liquid cyrstal display device

Details Projection type liquid cyrstal display device Projection type liquid cyrstal display device

1988-10-06

1991-02-05

Miller, Stanley D.

350331T, 350334, 350335, 350339F, G02F 113

Patent

active

049899546

ABSTRACT:
A projection type liquid crystal display device for transmitting three color light beams of RGB through three TN type liquid crystal panels and projecting the transmitted light beams optimizes the RGB transmission characteristics by changing the crossing angles of the polarization axes of a polarizer and an analyzer with respect to the orientation directions of the respective RGB TN cells in specified directions, and also a projection type liquid crystal display device for transmitting a light beam through a TN type liquid crystal panel and projecting the transmitted light beam effects temperature-compensation of the transmission characteristics of the liquid crystal panels by controlling the crossing angle of the polarization axes of a polarizer and an analyzer. Both projection type liquid crystal display devices are relatively simple in the construction, are able to optimize the transmission characteristics of the liquid crystal panels, and have excellent properties in the contrast and in the color reproducibility.

REFERENCES:
patent: 4368963 (1983-01-01), Stolov
patent: 4527864 (1985-07-01), Dir
patent: 4690508 (1987-09-01), Jacob
patent: 4759612 (1988-07-01), Nakatsuka et al.
patent: 4826311 (1989-05-01), Ledebuhr
patent: 4836629 (1989-06-01), Huignard et al.
Gooch, Tarry: J. Phys., The Optical Properties of Twisted Nematic Liquid Crystal, (1975), 1575-1584.
S. Aruga, etc., High-Resolution Full-Color Video Projector with Poly-Si TFT Array Light Valves (1987), 75-78.
M. Goscianski, Optical Characteristics of Twisted Nematic Liquid Crystals: Application to the Improvement of the Scanning Capability in Matrix Displays, (1977), 1426-1431.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-6715