Microfluidic apparatus, and method of detecting substance using microfluidic apparatus

US11383238B2 · kind B2 · utility

Assignees

• Beijing BOE Optoelectronics Technology Co., Ltd. · CN
• BOE Technology Group Co., Ltd. · CN

Inventors

• Nan Zhao · Beijing, CN
• Peizhi Cai · Beijing, CN
• Haochen Cui · Beijing, CN
• Yuelei Xiao · Tuji, CN
• Fengchun Pang · Beijing, CN
• Le GU · Beijing, CN
• Yingying ZHAO · Beijing, CN
• Hui Liao · Hangzhou City, CN
• Yue Geng · Beijing, CN
• Wenliang YAO · Beijing, CN

Key dates

• Filing date: Jul 26, 2019
• Grant date: Jul 12, 2022
• Expiry date: Aug 12, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2021/0346
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A microfluidic apparatus is provided. The microfluidic apparatus includes an electrochromic layer including a plurality of individually independently addressable regions; a microfluidic layer defining a microfluidic channel for allowing a microfluid to pass therethrough; and a plurality of photodetectors configured to detect light transmit through the microfluid. The electrochromic layer is configured to be switched between a first state in which the plurality of individually independently addressable regions of the electrochromic layer are substantially transmissive, and a second state in which at least a first one of the plurality of individually independently addressable regions of the electrochromic layer in a region corresponding to a position of the microfluid is substantially transmissive, at least a second one of the plurality of individually independently addressable regions of the electrochromic layer outside the region corresponding to the position of the microfluid is substantially non-transmissive.