Organic electroluminescent materials and devices

• US 9,281,483 B2
• Filed: 06/19/2015
• Issued: 03/08/2016
• Est. Priority Date: 02/10/2006
• Status: Active Grant

• Current Assignee: Universal Display Corporation
• Original Assignee: Universal Display Corporation
• Inventors: Knowles, David, Lin, Chun, Tsai, Jui-Yi, Walters, Robert W., Beers, Scott, Brown, Cory S., Yeager, Walter, Mackenzie, Peter
• Primary Examiner(s): Aulakh, Charanjit
• Application Number:
  US14/744,535
• Publication Number:
  US 20150287935A1
• Time in Patent Office: 263 Days
• Field of Search: 544/181, 546/10, 546/64, 548/108, 313/504
• US Class Current: 1/1
• CPC Class Codes: C07F 15/0033 Iridium compounds
• CPC Class Codes: C07F 15/0086 Platinum compounds
• CPC Class Codes: C09B 57/00 Other synthetic dyes of known constitution
• 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 2211/1033 with oxygen
• CPC Class Codes: C09K 2211/1037 with sulfur
• CPC Class Codes: C09K 2211/1044 containing two nitrogen atoms as heteroatoms
• CPC Class Codes: C09K 2211/1048 with oxygen
• CPC Class Codes: C09K 2211/1051 with sulfur
• CPC Class Codes: C09K 2211/1055 with other heteroatoms
• CPC Class Codes: C09K 2211/1059 containing three nitrogen atoms as heteroatoms
• CPC Class Codes: C09K 2211/1062 with oxygen
• CPC Class Codes: C09K 2211/1066 with sulfur
• CPC Class Codes: C09K 2211/1074 containing more than three nitrogen atoms as heteroatoms
• CPC Class Codes: C09K 2211/1081 with sulfur
• CPC Class Codes: C09K 2211/1088 containing oxygen as the only heteroatom
• CPC Class Codes: C09K 2211/1092 containing sulfur as the only heteroatom
• CPC Class Codes: C09K 2211/185 of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd
• 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 2101/10 : Triplet emission
• CPC Class Codes: H10K 2102/321 : Inverted OLED, i.e. having cathode between substrate and anode
• 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 85/40 : Organosilicon compounds, e.g. TIPS pentacene

Abstract

Compounds comprising phosphorescent metal complexes comprising cyclometallated imidazo[1,2-f]phenanthridine and diimidazo[1,2-a:1′,2′-c]quinazoline ligands, or isoelectronic or benzannulated analogs thereof, are described. Organic light emitting diode devices comprising these compounds are also described.

Claims

1. A compound comprising a phosphorescent metal complex comprising a monoanionic, bidentate ligand selected from the group below, wherein the metal is selected from the group consisting of the non-radioactive metals with atomic numbers greater than 40, and wherein the bidentate ligand may be linked with other ligands to comprise a tridentate, tetradentate, pentadentate or hexadentate ligand;

2. A compound comprising a phosphorescent metal complex comprising a monoanionic, bidentate ligand selected from Set 11, wherein the metal is selected from the group consisting of the non-radioactive metals with atomic numbers greater than 40, and wherein the bidentate ligand may be linked with other ligands to comprise a tridentate, tetradentate, pentadentate or hexadentate ligand;

3. An OLED device comprising a compound of claim 2.

4. A compound having a structure selected from Set 11′

;