Luminescence device and metal coordination compound therefor

• US 6,780,528 B2
• Filed: 09/24/2001
• Issued: 08/24/2004
• Est. Priority Date: 09/26/2000
• Status: Expired due to Fees

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Tsuboyama, Akira, Moriyama, Takashi, Okada, Shinjiro, Mizutani, Hidemasa, Takiguchi, Takao, Kamatani, Jun
• Primary Examiner(s): YAMNITZKY, MARIE ROSE
• Application Number:
  US09/961,150
• Publication Number:
  US 20020068190A1
• Time in Patent Office: 1,065 Days
• Field of Search: 428/690, 428/704, 428/917, 313/504, 313/506, 252/301.16, 257/102, 257/103, 544/225, 546/2, 548/101, 548/402
• US Class Current: 428/690
• CPC Class Codes: C07F 15/0086 Platinum compounds
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• CPC Class Codes: H05B 33/14 characterised by the chemical or physical composition or the arrangement of the electroluminescent material , or by the simultaneous addition of the electroluminescent material in or onto the light source
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 85/342 comprising iridium
• CPC Class Codes: H10K 85/346 comprising platinum
• CPC Class Codes: H10K 85/361 Polynuclear complexes, i.e. complexes comprising two or more metal centers
• CPC Class Codes: Y10S 428/917 Electroluminescent

Abstract

A luminescence device is principally constituted by a pair of electrodes and an organic compound layer disposed therebetween. The organic compound layer contains a metal coordination compound characterized by having a partial structure represented by the following formula (1):

wherein each of N and C represents an atom constituting a cyclic group.

Claims

1. A luminescence device comprising a pair of electrodes, a luminescence layer disposed between the electrodes and an organic layer, which is disposed between the electrodes and is different from the luminescent layer, the luminescent layer comprising a metal coordination compound represented by formula (4):

wherein;

(i) the compound of formula (4) is optionally and independently substituted with at least one C₁-C₂₀ alkyl group, C₁-C₂₀ alkoxy group or a trimethylsilyl group, which said alkyl, alkoxy and trimethylsilyl groups are optionally substituted with a fluorine; and

(ii) one —

CH═

in one or both pyridine rings in the compound of formula (4) is optionally replaced with —

N═

.