Organic light-emitting diode fluorescent device and method for producing same

US9444067B2 · kind B2 · utility

Assignee

• Everdisplay Optronics (Shanghai) Co., Ltd · CN

Inventors

• Yanhu Li · Shanghai, CN
• Hsin-Chih Lin · Hsinchu, TW

Key dates

• Filing date: Jan 20, 2015
• Grant date: Sep 13, 2016
• Expiry date: Jan 20, 2035

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K85/6574

Abstract

An organic light-emitting diode fluorescent device includes an anode layer, a hole injection layer, an emissive layer, an electron injection layer, and a cathode layer. A confinement layer is disposed on at least one of an upper face and a lower face of the emissive layer. The confinement layer has a triplet energy level higher than a triplet energy level of the emissive layer. A method for producing the organic light-emitting diode fluorescent device includes providing an anode substrate as an anode layer and disposing a hole injection layer, an emissive layer, an electron injection layer, and a cathode layer on the anode layer in sequence. A confinement layer is disposed on at least one of an upper face and a lower face of the emissive layer while producing the emissive layer. The confinement layer has a triplet energy level higher than a triplet energy level of the emissive layer.