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POLARIZATION BEAM SPLITTER, BACKLIGHT MODULE AND LIQUID CRYSTAL DISPLAY APPARATUS

  • US 20150323804A1
  • Filed: 09/29/2014
  • Published: 11/12/2015
  • Est. Priority Date: 05/07/2014
  • Status: Active Grant
First Claim
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1. A polarization beam splitter comprising:

  • a second prism group and a first prism group formed sequentially from a light incidence side to a light outgoing side and meshing with each other; and

    a polarization beam splitting layer arranged on a meshing surface of the first prism group or the second prism group and configured to allow a first polarized light in an incident light to be transmitted through the polarization beam splitting layer to exit from the light outgoing side while reflecting a second polarized light in the incident light back to the light incidence side, the second polarized light having a polarization direction perpendicular to that of the first polarized light.

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