Complexes with tridentate ligands

• US 8,383,249 B2
• Filed: 10/04/2007
• Issued: 02/26/2013
• Est. Priority Date: 10/04/2007
• Status: Active Grant

• Current Assignee: Universal Display Corporation
• Original Assignee: Universal Display Corporation
• Inventors: Walters, Robert W., Tsai, Jui-Yi, Mackenzie, Peter Borden, Beers, Scott
• Primary Examiner(s): Salvatore, Lynda
• Assistant Examiner(s): Bohaty, Andrew K
• Application Number:
  US11/973,265
• Publication Number:
  US 20090092854A1
• Time in Patent Office: 1,972 Days
• Field of Search: None
• US Class Current: 428/690
• CPC Class Codes: C07F 15/002 Osmium compounds

Abstract

The present invention relates to organic light emitting devices (OLEDs), and more specifically to phosphorescent organic materials used in such devices. More specifically, the present invention relates to emissive phosphorescent material which comprise at least one tridentate ligand bound to a metal center, wherein at least one of the bonds to the tridentate ligand is a carbon-metal bond.

Claims

1. An organic light emitting device, comprising:

an anode;

a cathode; and

a phosphorescent emissive region disposed between the anode and the cathode, wherein the emissive material has the formula IV;

2. The device of claim 1, wherein M is Os.