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Back-lit displays with high illumination uniformity

  • US 8,690,373 B2
  • Filed: 11/14/2007
  • Issued: 04/08/2014
  • Est. Priority Date: 11/15/2006
  • Status: Active Grant
First Claim
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1. A directly illuminated display unit, comprising:

  • a display panel;

    one or more light sources disposed behind the display panel and being capable of producing illumination light;

    a diffusive light diverting layer disposed between the one or more light sources and the display panel, the light diverting layer comprising first light diverting members disposed on a first side of the light diverting layer facing the display panel and second light diverting members disposed on a second side of the light diverting layer facing away from the display panel, the diffusive light diverting layer further comprising diffusing particles disposed within a polymeric matrix, wherein the first side of the light diverting layer comprises at least one flat surface portion between two neighboring first light diverting members.

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