Organic electroluminescent device and fabrication method thereof

US8299471B2 · kind B2 · utility

Assignee

• CHIMEI INNOLUX CORPORATION · TW

Inventors

• Hanson Liu · Watertown, US
• Ryan Lee · Lo Wu, CN
• Chun-Hsiang Fang · Yilan City, TW

Key dates

• Filing date: Jan 27, 2009
• Grant date: Oct 30, 2012
• Expiry date: Aug 19, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K59/13

Abstract

The invention discloses an organic electroluminescent device includes a substrate. The substrate includes a first control area and a second control area, a polysilicon active layer disposed on the first control area, and a first conductivity type source/drain area disposed in the polysilicon active layer. A first dielectric layer is disposed on the polysilicon active layer serving as a first gate dielectric layer, a first gate and a second gate is disposed on the polysilicon active layer and the second control area, respectively, wherein the first gate and the first conductivity type source/drain area constitute a first conductivity type thin film transistor serving as a switch element. A second dielectric layer disposed on the first gate and the second gate serves as a second gate dielectric layer, a micro-crystal silicon active layer disposed over the second gate.