Microfluidic system and method for driving the same

US10374115B2 · kind B2 · utility

Assignee

• BOE Technology Group Co., Ltd. · CN

Inventors

• Xueyou Cao · Beijing, CN
• Xue Dong · Beijing, CN
• Haisheng Wang · Beijing, CN
• Xiaoliang Ding · Beijing, CN
• Yingming Liu · Beijing, CN
• Yanling Han · Beijing, CN
• Yuzhen Guo · Beijing, CN
• Pengpeng Wang · Beijing, CN
• Chihjen Cheng · Beijing, CN
• Ping Zhang · Beijing, CN
• Wei Liu · Beijing, CN
• Likai Deng · Beijing, CN
• Yangbing Li · Beijing, CN

Key dates

• Filing date: May 4, 2018
• Grant date: Aug 6, 2019
• Expiry date: May 4, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G09G3/344
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A microfluidic system includes a liquid drop accommodation space, an array of photosensitivity detection circuits and an array of driving circuits between an upper substrate and a lower substrate. Each photosensitivity detection circuit includes a photosensitive transistor and a first gating transistor. The photosensitive transistor has a gate electrode coupled to a first scan signal line, a source electrode coupled to a first power supply voltage signal line, and a drain electrode coupled to a source electrode of the first gating transistor. The first gating transistor has a gate electrode coupled to a second scan signal line, and a drain electrode coupled to a read signal line. Each driving circuit includes a driving transistor and a driving electrode. The driving transistor has a gate electrode coupled to a third scan signal line, a source electrode coupled to a data signal line, and a drain electrode coupled to the driving electrode.