OLED devices with internal outcoupling

US8969856B2 · kind B2 · utility

Assignee

• General Electric Company · US

Inventors

• Jie Liu · Houston, US
• Srinivas Prasad Sista · Niskayuna, US
• Xiaolei Shi · Nanhu, CN
• Ri-an Zhao · Schenectady, US
• Kelly Scott Chichak · Clifton Park, US
• Jeffrey Michael Youmans · Niskayuna, US
• Kevin Henry Janora · Schenectady, US
• Larry G. Turner · Waterford, US

Key dates

• Filing date: Aug 30, 2012
• Grant date: Mar 3, 2015
• Expiry date: Aug 30, 2032

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2102/331

Abstract

Optoelectronic devices that have enhanced internal outcoupling are disclosed. The devices include a substrate, an anode, a cathode, an electroluminescent layer, and a hole injecting layer. The hole injecting layer includes inorganic nanoparticles that have a bimodal particle size distribution and which are dispersed in an organic matrix.