Projection color image display apparatus

Details Projection color image display apparatus Projection color image display apparatus

1998-02-04

1999-05-11

Lee, Eddie C.

Optics: image projectors

Composite projected image

Multicolor picture

353 20, 353 30, 353 33, G03B21/00;21/14

Patent

active

059020318

ABSTRACT:
An almost parallel white beam enters a color filter, and is thereby color-separated into primary colors of R, G and B. The color-separated parallel beam enters a PBS after the beam diameter thereof is converted at a magnification of f.sub.2 /f.sub.1 by a relay optical system. The polarizing beam splitter (PBS) allows p-polarized components to transmit therethrough and to enter a liquid crystal display device. Images of filter elements for R, G, and B in the color filter are reduced and formed on corresponding pixel electrodes in the liquid crystal display device, and then, reflected. The p-polarized components that are incident on the liquid crystal display device are modulated according to image signal voltages applied to the pixel electrodes (the polarization direction is changed). Then, s-polarized components generated by this modulation are reflected by the PBS, and projected in an increased size onto a screen through a projection lens.

REFERENCES:
patent: 5181013 (1993-01-01), Bradshaw
patent: 5493351 (1996-02-01), Hamagishi
Seminar Lecture Notes, Bernhard S. Scheuble, LCD's with High Information Content, SID, pp. 12-11, May 19, 1998.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-241925