US 6,416,887 B1 · Organic electroluminescent element

Abstract

An organic EL element has an anode, a cathode, and one or more organic compound layers sandwiched between the anode and cathode, wherein at least one layer of said organic compound layers includes an organic compound denoted by chemical formula (1), which is more specifically denoted by chemical formulas (2)-(5). By introducing desired substituents at R1-R4, these compounds can be made to demonstrate hole transport function, emissive function, electron transport function, or a combination of those functions. Due to its tendency to be structurally non-planar, the organic compound does not crystallize easily, and has a high glass transition temperature. Use of such a compound in an organic EL element enhances element life.

Claims8

Dependent claims

An organic electroluminescence element comprising an anode, a cathode, and one or more organic compound layers sandwiched between the anode and cathode, wherein at least one layer of said organic compound layers comprises an organic compound denoted by the following chemical formula

wherein R1-R16 are independently selected from the group consisting of hydrogen, an alkyl group, an alkoxy group, a phenyl group, a substituted phenyl group, a diphenylamino group, a diarylamino group, a heterocyclic group and a substituted heterocyclic group.

Dependencies are inferred from the claim text.

Facts

Application

09/581,544Filed 11 Jul 2000

Priority

JP 10-32108011 Nov 1998

Granted

9 Jul 2002

Term ends

Not estimatedThe source records don’t support an estimate.

Classification18 codes

H10K 85/624
Polycyclic condensed aromatic hydrocarbons, e.g. anthracene: containing six or more rings
C07C 211/61
Having amino groups bound to carbon atoms of six-membered aromatic rings being part of condensed ring systems of the carbon skeleton: with at…
C07C 225/22
Compounds containing amino groups and doubly—bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly—bound oxygen atoms…:…
C09K 11/06
Luminescent materials, e.g. electroluminescent or chemiluminescent: containing organic luminescent materials

Organic electroluminescent element

Life of this patent

Organic electroluminescent element

Life of this patent

Abstract

Claims8