DROPLET CONTROL AND DETECTION DEVICE, OPERATING METHOD THEREOF, AND MICROFLUIDIC DEVICE
First Claim
1. A droplet control and detection device, comprising:
- a light source;
a first electrode;
a second electrode;
a droplet arranged on a light-exiting side of the light source, wherein the droplet is movable under the effect of an electric field formed between the first electrode and the second electrode;
a photoelectric detection structure, configured to detect light emitted by the light source and reflected by the droplet; and
a processing circuit, configured to obtain droplet information according to a detection result of the photoelectric detection structure and control an electrical signal applied on the first electrode and the second electrode according to the droplet information.
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Accused Products
Abstract
A droplet control and detection device and an operating method thereof are provided. The droplet control and detection device includes: a light source; a first electrode; a second electrode; a droplet arranged on a light-exiting side of the light source, where the droplet is movable under the effect of an electric field formed between the first electrode and the second electrode; a photoelectric detection structure configured to detect light emitted by the light source and reflected by the droplet; and a processing circuit configured to obtain droplet information according to a detection result of the photoelectric detection structure and control an electrical signal applied on the first electrode and the second electrode according to the droplet information.
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Citations
19 Claims
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1. A droplet control and detection device, comprising:
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a light source; a first electrode; a second electrode; a droplet arranged on a light-exiting side of the light source, wherein the droplet is movable under the effect of an electric field formed between the first electrode and the second electrode; a photoelectric detection structure, configured to detect light emitted by the light source and reflected by the droplet; and a processing circuit, configured to obtain droplet information according to a detection result of the photoelectric detection structure and control an electrical signal applied on the first electrode and the second electrode according to the droplet information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A microfluidic device, comprising:
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a base substrate; a pixel circuit and a photoelectric detection structure on the base substrate, wherein the pixel circuit comprises an anode; a light-emitting unit on the pixel circuit and the photoelectric detection structure; a cathode on the light-emitting unit, wherein the light-emitting unit is capable of emitting light under the effect of an electric field generated between the anode and the cathode; an insulating film encapsulation layer on the cathode; a second electrode on the film encapsulation layer; a first hydrophobic layer on the second electrode; a droplet and a spacer on the first hydrophobic layer; a second hydrophobic layer on the droplet and the spacer, wherein the droplet is movable under an electric field generated between the cathode and the second electrode, and the spacer is configured to support the second hydrophobic layer in such a manner that the first hydrophobic layer and the second hydrophobic layer are spaced by a predetermined distance, wherein the microfluidic device further comprises; a processing circuit, configured to obtain droplet information according to a detection result of the photoelectric detection structure, control an electrical signal applied on the cathode and the second electrode according to the droplet information, and control the droplet to be moved by the electric field generated between the cathode and the second electrode. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification