Organic light emitting device and materials for use in same

US9601708B2 · kind B2 · utility

Assignees

• UNIVERSAL DISPLAY CORPORATION · US
• IDEMITSU KOSAN CO., LTD. · JP

Inventors

• Hitoshi Yamamoto · Chino, JP
• Michael S. Weaver · Princeton, US
• Julia J. Brown · Yardley, US
• Kazuki Nishimura · Sodegaura, JP
• Toshihiro Iwakuma · Sodegaura, JP
• Tetsuya Inoue · Sodegaura, JP
• Mitsunori Ito · Sodegaura, JP

Key dates

• Filing date: Feb 11, 2011
• Grant date: Mar 21, 2017
• Expiry date: Oct 6, 2032

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2101/10

Abstract

The OLEDs of the present invention are characterized by providing an organic thin film layer comprising a single layer or plural layers between a cathode and an anode, wherein the organic thin film layer comprises at least one organic light emitting layer, wherein at least one light emitting layer comprises at least one host material and at least one phosphorescent emitter material, wherein the host material comprises a bis-carbazole derivative host material;