Light emitting panel assemblies

  • US 6,755,547 B2
  • Filed: 08/30/2002
  • Issued: 06/29/2004
  • Est. Priority Date: 06/27/1995
  • Status: Expired due to Fees
First Claim
Patent Images

1. A backlight assembly comprising a light emitting member having at least one light emitting area that emits light that is internally reflected within the light emitting member, a separate transparent sheet or film overlying the light emitting area with an air gap therebetween, a pattern of deformities on one side of the sheet or film having a width and length that is quite small in relation to the width and length of the sheet or film, the deformities varying at different locations on the sheet or film to direct the light that is emitted by the, light emitting member in different directions to produce a desired light output distribution such that the light will pass through a liquid crystal display with low loss.

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