Organic light emitting materials and devices

• US 6,858,327 B2
• Filed: 11/08/2002
• Issued: 02/22/2005
• Est. Priority Date: 11/08/2002
• Status: Expired due to Term

• Current Assignee: Universal Display Corporation
• Original Assignee: Universal Display Corporation
• Inventors: Tsai, Jui-Yi, Walters, Robert W., Barone, Michael
• Primary Examiner(s): YAMNITZKY, MARIE ROSE
• Application Number:
  US10/290,656
• Publication Number:
  US 20040091738A1
• Time in Patent Office: 837 Days
• Field of Search: 428/690, 428/917, 313/504, 313/506, 252/301.16, 257/102, 257/103, 546/2, 546/4, 548/101, 548/108
• US Class Current: 428/690
• CPC Class Codes: C07F 15/0033 Iridium compounds
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• CPC Class Codes: C09K 2211/1007 Non-condensed systems
• CPC Class Codes: C09K 2211/1029 containing one nitrogen atom as the heteroatom
• CPC Class Codes: C09K 2211/1037 with sulfur
• CPC Class Codes: C09K 2211/1044 containing two nitrogen atoms as heteroatoms
• CPC Class Codes: C09K 2211/1059 containing three nitrogen atoms as heteroatoms
• CPC Class Codes: C09K 2211/185 of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 85/342 comprising iridium
• CPC Class Codes: Y10S 428/917 Electroluminescent

Abstract

Emissive materials are provided having the following structures:
Devices incorporating the emissive materials are also provided.

Claims

1. An emissive material comprising a compound having the formula:

2. An organic light emitting device, comprising:

(a) an anode;

(b) a cathode;

(c) an emissive layer disposed between the anode and the cathode, the emissive layer including a material having a structure selected from the group consisting of;