Color liquid crystal display with three dichroic mirrors reflect

Details Color liquid crystal display with three dichroic mirrors reflect Color liquid crystal display with three dichroic mirrors reflect

1997-02-19

1998-10-20

Gross, Anita Pellman

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349 62, 349 5, 349106, G02F 11335

Patent

active

058254439

ABSTRACT:
White light projected from a white light source is divided into three light beams of primary colors, i.e., red, green and blue by a dichroic mirror. Three light beams projected from the dichroic mirror are made incident upon a micro-lens array and reflected on and modulated in a liquid crystal panel disposed beneath the micro-lens array. The liquid crystal panel is driven by a driver circuit which supplies color signals to the panel, thereby modulating the light beams in the panel. The modulated light beams are projected from the micro-lens array to a schlieren diaphragm which eliminates scattered light components from the light beams. The light beams then enter into a projection lens and display color images on the screen. Since light beams constituting a picture element consisting of red, green and blue colors are projected from a single micro-lens of the micro-lens array, a color image displayed on the screen has no blur among three primary colors. Since the three primary color beams are projected on the liquid crystal panel and modulated therein, only a single liquid crystal panel having no color filters is used in the display device.

REFERENCES:
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patent: 5459592 (1995-10-01), Shibatani et al.
patent: 5633737 (1997-05-01), Tanaka et al.
patent: 5682215 (1997-10-01), Nishihara et al.
patent: 5689321 (1997-11-01), Kochi

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