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Stratified quantum dot phosphor structure

  • US 10,319,878 B2
  • Filed: 12/21/2017
  • Issued: 06/11/2019
  • Est. Priority Date: 10/31/2014
  • Status: Active Grant
First Claim
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1. A light emitting diode (LED) display comprising:

  • a substrate with a plurality of wells formed in a top surface of the substrate;

    a plurality of LEDs, each LED occupying a corresponding well and having an exposed light emission surface, with a post extending from the light emission surface;

    a plurality of stratified quantum dot (QD) structures, each stratified QD structure overlying a corresponding LED and comprising;

    a transparent first barrier layer overlying the LED emission surface and post;

    a first layer of discrete QDs overlying the first barrier layer; and

    ,a transparent second barrier layer overlying the first layer of QDs.

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