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Display device with multilayer film between LCD and backlight

  • US 6,147,723 A
  • Filed: 03/01/1996
  • Issued: 11/14/2000
  • Est. Priority Date: 12/22/1992
  • Status: Expired due to Fees
First Claim
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1. A display device comprising:

  • a liquid crystal light valve; and

    illuminating means for illuminating said liquid crystal light valve, said illuminating means having a wave guide plate type planar light source and a substrate facing said light source with an air layer interposed therebetween and having a multi-layer film for selectively reflecting some part of the light from said wave guide plate type planar light source without effecting color-filtering so as to make divergence of the light from said light source small, withsaid multi-layer film being divided into a plurality of regions having different transmittance from one another, said plurality of regions being so distributed as to uniformize an intensity distribution of the light from said light source.

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