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LED-based large area display

  • US 8,994,056 B2
  • Filed: 07/12/2013
  • Issued: 03/31/2015
  • Est. Priority Date: 07/13/2012
  • Status: Active Grant
First Claim
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1. A display panel comprising:

  • an array of light emitting pixels comprising red, blue and green light emitting sub-pixels;

    a pixel in the array of light emitting pixels comprising an array of three blue light emitting solid-state devices and a light transmissive overlay placed over the array of solid-state light emitters; and

    wherein regions of the overlay corresponding to red light emitting sub-pixels comprise a red light emitting photoluminescence material, regions of the overlay corresponding to green light emitting sub-pixels comprise a green light emitting photoluminescence material and regions of the overlay corresponding to blue light emitting sub-pixels comprise a light transmissive region.

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