×

Organic thin-film EL device

  • US 5,093,691 A
  • Filed: 05/18/1990
  • Issued: 03/03/1992
  • Est. Priority Date: 05/19/1989
  • Status: Expired due to Term
First Claim
Patent Images

1. An organic thin-film EL device comprising at least one organic luminescent thin-film layer sandwiched between a couple of electrodes at least one of which electrodes is transparent;

  • said organic luminescent thin-film layer contains as a main constituent a naphthalimide derivative represented by the formula (I);

    ##STR3## wherein R1, R2 and R3 are identical or different from each other and are selected from the group consisting of hydrogen, an alkyl group, an aryl group, a substituted alkyl group, a substituted aryl group, an alkoxyl group, an amino group and an acylamino group.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×