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Desiccant for top-emitting oled

  • US 20060022592A1
  • Filed: 07/27/2004
  • Published: 02/02/2006
  • Est. Priority Date: 07/27/2004
  • Status: Active Grant
First Claim
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1. A method for reducing moisture contamination in a top-emitting OLED device comprising:

  • a) providing a substrate having top and bottom surfaces;

    b) forming a top-emitting EL unit over the top surface of the substrate, wherein the EL unit produces light that is primarily not emitted through the substrate;

    c) forming first and second protective covers over the top and bottom surfaces of the substrate, respectively, and thereby defining first and second chambers, respectively;

    d) providing moisture-absorbing material in association with the second chamber; and

    e) providing communication between the first and second chambers whereby moisture in the first or second chambers is absorbed by the moisture-absorbing material.

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