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Light guiding plate with refractive member, backlight assembly having the same, and display device having the same

  • US 7,847,880 B2
  • Filed: 06/14/2006
  • Issued: 12/07/2010
  • Est. Priority Date: 06/14/2005
  • Status: Active Grant
First Claim
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1. A light guiding plate comprising:

  • a light guiding plate body which directly inputs a light emitted from a light source;

    a plurality of refractive members are disposed on a surface of the light guiding plate body, and extend in a predetermined direction normal to the surface of the light guiding plate body;

    a polarization transformation layer disposed directly on the surface of the light guiding plate body and refractive members to transform a polarization component of light emitted through the light guiding plate body and the refractive members; and

    a polarization extraction layer on the polarization transformation layer,wherein refractive members are made of the same material as the light guiding plate body and the light guiding plate body, the polarization transformation layer, and the polarization extraction layer are made of different materials than each other.

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