IP Library › Granted Patent US 8,025,987
Granted Patent B2
US 8,025,987 · App. 11/917,256 · Granted Sep 27, 2011

Light emitting polymer material, organic electroluminescence device and display device comprising light emitting polymer material

Assignee: Showa Denko K.K.
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Quick Facts
Patent No.
US 8,025,987
App. No.
11/917,256
Granted
Sep 27, 2011
Kind
B2
Abstract

Disclosed is a light emitting polymer material comprising a (co)polymer comprising a structural unit derived from an iridium complex represented by the following formula (1): wherein R 1 and R 2 each independently represents an atom or a substituent selected from the group consisting of a hydrogen atom, a halogen atom, a cyano group, an alkyl group of 1 to 10 carbon atoms, an aryl group of 6 to 10 carbon atoms, an amino group which may be substituted with an alkyl group of 1 to 10 carbon atoms, an alkoxy group of 1 to 10 carbon atoms, and a silyl group; X 1 represents a polymerizable functional group-containing substituent; and A 1 to A 3 each independently represents a divalent substituent having a cyclic structure.

Claims (6)

1. A light emitting polymer material comprising a (co)polymer comprising a structural unit derived from an iridium complex represented by the following formula (IV):

2. The light emitting polymer material as claimed in claim 1 , wherein the (co)polymer further comprises a structural unit derived from at least one hole transport polymerizable compound.

3. The light emitting polymer material as claimed in claim 1 , wherein the (co)polymer further comprises a structural unit derived from at least one electron transport polymerizable compound.

4. An organic EL device comprising one layer or two or more layers of an organic polymer compound layer interposed between an anode and a cathode, wherein at least one of the organic polymer compound layers comprises the light emitting polymer material as claimed in claim 1 .

5. An image display device comprising the organic EL device as claimed in claim 4 .

6. An area light source comprising the organic EL device as claimed in claims 4 .

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 10, 2014
From: SHOWA DENKO K.K.
To: SAMSUNG ELECTRONICS CO., LTD
Reel/Frame 033709/0095 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 12, 2007
From: TAKAHASHI, YOSHIAKI; YAMAGUCHI, TETSUHIKO
To: SHOWA DENKO K.K.
Reel/Frame 020235/0100 →
Priority Claims (1)
JP 2005-173883 · Jun 14, 2005 · national
Continuity (2)
Provisional Application 60692569 · Jun 22, 2005
Related Publication 20090096353A1 · Apr 16, 2009