Active device, driving circuit structure, and display panel

US8698150B2 · kind B2 · utility

Assignee

• Au Optronics Corporation · TW

Inventors

• Chao YANG · Beijing, CN
• Hao-Lin Chiu · Taipei, TW
• Shu-Wei Tsao · Taipei, TW
• Shih-Che Huang · Chiayi, TW
• Po-Liang Yeh · New Taipei, TW
• Chun-Nan Lin
• Shine-Kai Tseng · Daxi District, TW

Key dates

• Filing date: Oct 4, 2012
• Grant date: Apr 15, 2014
• Expiry date: Oct 4, 2032

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10D30/6755

Abstract

An active device, a driving circuit structure, and a display panel are provided. The active device includes a gate, a gate insulation layer covering the gate, a semiconductor layer disposed above the gate, an etching stop layer disposed on the gate insulation layer and the semiconductor layer, a source, and a drain. The gate forms a meandering pattern on a substrate. The semiconductor layer has an area substantially defining a device region where the active device is. The etching stop layer has a first contact opening and a second contact opening. The first contact opening and the second contact opening separated from each other and both exposing the semiconductor layer. The source and the drain separated from each other are disposed on the etching stop layer and in contact with the semiconductor layer through the first contact opening and the second contact opening, respectively.