Microfluidic device and detection method thereof

US11660597B2 · kind B2 · utility

Assignee

• Shanghai AVIC Optoelectronics Co., Ltd. · CN

Inventors

• Baiquan Lin · Shanghai, CN
• Kerui Xi · Shanghai, CN
• Zhenyu JIA · Shanghai, CN
• Junting Ouyang · Shanghai, CN
• Feng Qin · Shanghai, CN
• Xuhui Peng · Shanghai, CN

Key dates

• Filing date: Apr 15, 2021
• Grant date: May 30, 2023
• Expiry date: Aug 18, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2021/035
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A microfluidic device includes: first substrate, microfluidic channel layer, and second substrate; the first substrate includes light source layer including a plurality of light source structures, the light source structure includes first electrode, second electrode, and an electroluminescence module, and when being turned on, emits light passing through the microfluidic channel layer and irradiating the second substrate; the second substrate includes photoelectric detection layer including a plurality of photoelectric detection structures and driving electrode layer including a plurality of driving electrodes and a plurality of driving circuits, the photoelectric detection structure includes third electrode, fourth electrode, and photoelectric conversion module arranged therebetween, and when being turned on, generates an electrical signal according to an incident light signal; the driving circuit is configured to apply a voltage to each driving electrode such that a droplet moves in a microfluidic channel of the microfluidic channel layer.