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Rear projection screen

  • US 10,444,616 B2
  • Filed: 03/19/2018
  • Issued: 10/15/2019
  • Est. Priority Date: 03/29/2017
  • Status: Active Grant
First Claim
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1. A rear projection screen, comprising a transparent substrate, a light absorbing film, and a first diffusion film in sequence from a projection side to a viewer side, wherein,the transparent substrate comprises a first surface and a second surface opposite to the first surface, the first surface faces the projection side, the second surface faces the viewer side, and the first surface is disposed with a plurality of prism structures protruding toward the projection side;

  • the transparent substrate is located between the light absorbing film and the prism structures, the light absorbing film comprises a plurality of light absorbing structures arranged at intervals from each other, wherein each of the light absorbing structures is a columnar structure tapered from the projection side toward the viewer side, and a distribution density of the prism structures is greater than a distribution density of the light absorbing structures;

    the light absorbing film is located between the first diffusion film and the transparent substrate.

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