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Registered reflective element for a brightness enhanced TIR display

  • US 9,746,740 B2
  • Filed: 01/21/2016
  • Issued: 08/29/2017
  • Est. Priority Date: 05/13/2013
  • Status: Expired due to Fees
First Claim
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1. A totally internally reflective display with a brightness enhancing structure, the display comprising:

  • a transparent sheet comprising a plurality of transparent convex protrusions on the inward side of said sheet, each of the plurality of transparent convex protrusions further comprising a dark center;

    a backplane electrode; and

    a reflective element interposed between the convex protrusions and the backplane electrode, the reflective element aligned below the dark center of each convex protrusion to prevent light rays passing through said pupils from not substantially being recycled and reflected back to the display;

    wherein the convex protrusions are formed integrally with the transparent sheet.

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