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Backlight wedge with side mounted light source

  • US 20070274094A1
  • Filed: 05/24/2006
  • Published: 11/29/2007
  • Est. Priority Date: 05/24/2006
  • Status: Active Grant
First Claim
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1. A backlight comprising:

  • a visible light transmissive body primarily propagating light by TIR with an input and output surface, the visible light transmissive body having a light guide portion and a light input portion, the light guide portion having a light reflection surface and a light emission surface, the light input portion having opposing side surfaces that are not parallel;

    a light source disposed adjacent to the input surface, the light source emitting light into the light input surface, the light input surface being one of the opposing side surfaces;

    a multilayer polymeric mirror film disposed adjacent to the opposing side surfaces but not in intimate contact with the opposing side surfaces and reflecting more than 95% of visible light incident on the multilayer polymeric mirror film.

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