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Thin film electroluminescence display device

  • US 4,869,973 A
  • Filed: 09/04/1987
  • Issued: 09/26/1989
  • Est. Priority Date: 09/05/1986
  • Status: Expired due to Fees
First Claim
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1. A thin film EL display device comprisinga transparent electrode provided on a transluscent substrate,a first dielectric layer provided on said transparent electrode,a first thin film made of one member selected from the group consisting of calcium sulfide and a mixture containing calcium sulfide and provided on said first dielectric layer,an EL emission layer provided on said first dielectric layer,a second thin film made of one member selected from the group consisting of calcium sulfide and a mixture containing calcium sulfide and provided on said EL emission layer,a second dielectric layer provided on said EL emission layer anda back electrode provided on said second dielectric layer.

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