US 8,298,687 B2 · Anthracene derivative, material for light emitting element, light emitting element, light emitting device, and electronic device

Abstract

It is an object of the present invention to provide a novel material capable of realizing excellent color purity of blue, and a light emitting element and a light emitting device using the novel material. Further, it is an object of the present invention to provide which is highly reliable, and a light emitting element and a light emitting device using the novel material. The structure for solving the above problems in accordance with the present invention is an anthracene derivative simultaneously having a diphenylanthracene structure and a carbazole skeleton in a molecule as represented by structural formula (I):

Claims20

Dependent claims

A light emitting device comprising:

a first electrode;
a light emitting layer over the first electrode;
and
a second electrode over the light emitting layer,
wherein the light emitting layer comprises a host material and a dopant,
wherein the host material is an anthracene derivative represented by the following formula:
and
wherein A1 and A2 are independently hydrogen, an alkyl group having 1 to 6 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 14 carbon atoms.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

13/238,057Filed 21 Sep 2011 · continuation

Priority

JP 2005-09326928 Mar 2005

Published

US 2012/0007066 A112 Jan 2012

Granted

30 Oct 2012

Term ends

Not estimatedThe source records don’t support an estimate.

Classification16 codes

C07D 209/86
Carbazoles; Hydrogenated carbazoles: with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms…
C07D 209/88
Carbazoles; Hydrogenated carbazoles: with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to…
C09K 11/06
Luminescent materials, e.g. electroluminescent or chemiluminescent: containing organic luminescent materials
H05B 33/14
Light sources with substantially two-dimensional [2D] radiating surfaces: characterised by the chemical or physical composition or the arrangement…

Family

PCT/JP2006/306775Parent of this continuation · filed 24 Mar 2006

US 2012/0007066 A1Pre-grant publication · published 12 Jan 2012

Application11/576,934Parent of this continuation

US 8,039,122 B2Parent of this continuation

US 2009/0015140 A1Published application

US 8,298,687 B2This patent

From the US filing history. Foreign family members aren’t listed.

Anthracene derivative, material for light emitting element, light emitting element, light emitting device, and electronic device

Life of this patent

Anthracene derivative, material for light emitting element, light emitting element, light emitting device, and electronic device

Life of this patent

Abstract

Claims20