AMINODIBENZODIOXIN DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE USING SAME

WIPO Patent Application WO/2005/075451

A1

Disclosed is a highly reliable material for organic electroluminescent devices which has high luminance and high luminous efficiency, hardly deteriorates in emission, and is excellent in use and storage at high temperatures. Also disclosed is an organic electroluminescent device using such a material. The material for organic electroluminescent devices is a diaminodibenzodioxin derivative represented by the general formula (1) below, and it can be included in a light-emitting layer, hole transport layer or hole injection layer of an organic electroluminescent device. (1) (In the formula, Ar₁, Ar₂, Ar₃ and Ar₄ respectively represent a substituted or unsubstituted aryl group. Incidentally, Ar₁ and Ar₂ as well as Ar₃ and Ar₄ may form a nitrogen-containing heterocyclic ring together with a nitrogen bonded thereto.)

KAI TAKAHIRO (JP)
SEKIYA HIROKATSU (JP)
MIYAZAKI HIROSHI (JP)
ISHIKAWA SHIGETAKA (JP)

PCT/JP2005/001079

August 18, 2005

January 27, 2005

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NIPPON STEEL CHEMICAL CO (JP)
KAI TAKAHIRO (JP)
SEKIYA HIROKATSU (JP)
MIYAZAKI HIROSHI (JP)
ISHIKAWA SHIGETAKA (JP)

C07D319/24; C07D405/12; C07D407/12; C07D409/12; C07D471/04; C09K11/06; H01L51/00; H05B33/14; H05B33/22; H01L51/50; (IPC1-7): C07D319/24; C09K11/06; H05B33/14; H05B33/22

JPH0578655A	1993-03-30
JPH05234681A	1993-09-10
JPH08100172A	1996-04-16

KELNHOFER K. ET AL: "Electroluminescent stilbenoids - electrochemically generated luminescence in solution and organic light emitting devices on a polymer blend basis", ACTA POLYMERICA, vol. 48, no. 5-6, 1997, pages 188 - 192, XP002987155

Naruse, Katsuo (TKK Nishishinbashi Bldg. 11-5, Nishi-shinbashi 2-chome, Minato-k, Tokyo 03, JP)

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