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Projection type liquid crystal displaying device

  • US 4,936,658 A
  • Filed: 07/07/1987
  • Issued: 06/26/1990
  • Est. Priority Date: 07/08/1986
  • Status: Expired due to Term
First Claim
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1. A projection type liquid crystal display device comprising:

  • light emitting means for emitting two groups of beams of light which are orthogonal and cross each other at an area of intersection;

    first means disposed in the path of one of the groups of beams of light between the light emitting means and the area of intersection and comprising a liquid crystal panel and at least one polarization plate to transmit P-wave polarized light;

    second means disposed in the path of the other of the groups of beams of light between the light emitting means and the area of intersection and comprising a liquid crystal panel and at least one polarization plate to transmit P-wave polarized light; and

    a dichroic mirror disposed at the area of intersection to receive P-wave polarized light from the first and second means for synthesizing the P-wave polarized light received therefrom, the dichroic mirror including means for transmitting P-wave polarized light from the first means and for reflecting P-wave polarized light from the second means.

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