Projection type liquid crystal displaying device

Details Projection type liquid crystal displaying device Projection type liquid crystal displaying device

1987-07-07

1990-06-26

Miller, Stanley D.

Optics: image projectors

Plural projection paths with single light source

350338, 350347V, 350345, 350352, 350397, 350408, 353 34, 353 37, G02F 113, G02B 530, G03B 2126

Patent

active

049366580

ABSTRACT:
A projection type liquid crystal display device includes a light source and condenser lenses for emitting two groups of beams of light which orthogonally cross each other. A first device is disposed in the path of one of the groups of beams and comprises a liquid crystal panel and at least one polarization plate to transmit P-wave polarized light. A second device is disposed in a path of the other group of beams of light and comprises a liquid crystal panel and at least one polarization plate to transmit P-wave polarized light. A dichroic mirror disposed to receive light from the first and second devices synthesizes the P-wave polarized light by transmitting P-wave polarized light from the first device and for reflecting the P-wave polarized light from the second device.

REFERENCES:
patent: 3588324 (1971-06-01), Marie
patent: 4190832 (1980-02-01), Mohler
patent: 4687301 (1987-08-01), Ledebuhr
patent: 4796978 (1989-01-01), Tanaka et al.

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