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Thin film el device

  • US 5,444,268 A
  • Filed: 04/28/1993
  • Issued: 08/22/1995
  • Est. Priority Date: 11/02/1990
  • Status: Expired due to Fees
First Claim
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1. A thin film EL device, comprising:

  • a pair of opposed electrodes; and

    a laminate composed of a light emission layer and first and second insulation layers with said light emission layer being positioned between said first and second insulation layers, said laminate being positioned between said electrodes with each one of said first and second insulation layers separating a respective one of said electrodes from said light emission layer;

    wherein said light emission layer is composed of SrS as a light emission substance, Ce as a light emission substance, and Pb as a coactivator, wherein the amount of Pb coactivator does not exceed 1 atomic %.

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