Driving circuit and driving method thereof, micro-fluidic substrate and micro-fluidic device

A driving circuit and capacitor technology, applied in the field of microfluidics, can solve the problem that the driving voltage is not enough to drive the droplet to move
CN110687953APending Publication Date: 2020-01-14SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
Publication Date
2020-01-14

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Abstract

Embodiments of the invention disclose a driving circuit and a driving method thereof, a micro-fluidic substrate and a micro-fluidic device. The driving circuit is characterized in that: a first voltage signal of a first voltage signal end is transmitted to a first end of a first capacitor through a voltage write-in unit, and a reset signal of a reset signal end is transmitted to a second end of the first capacitor through a reset unit, so that a voltage difference is generated between the first end of the first capacitor and the second end of the first capacitor; then a second voltage signal of a second voltage signal end is transmitted to the second end of the first capacitor by a switching unit through a boosting unit; in this way, when a high potential signal needs to be output, as a potential signal of the second end of the first capacitor is increased, a potential signal of the first end of the first capacitor is higher than a potential signal of the first voltage signal of the first voltage signal end.
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Description

technical field

[0001] The invention relates to the field of microfluidic technology, in particular to a driving circuit and a driving method thereof, a microfluidic substrate and a microfluidic device. Background technique

[0002] Microfluidics is a technology for precisely controlling and manipulating microscale fluids, which has great application prospects in the fields of biology, chemistry, and medicine. Among them, the microfluidic device is the main platform for the realization of microfluidic technology.

[0003] A microfluidic device usually includes a control circuit and a driving electrode. The control circuit is used to provide voltage to the driving electrode, so that an electric field is formed between adjacent driving electrodes, and the droplet moves under the driving action of the electric field. The control circuit can adopt a passive driver chip or an active driver chip. Among them, the driving capability of the passive driving chip is limited. When it ...

Claims

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