Patents by Inventor Kaidi Zhang
Kaidi Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240157360Abstract: Microfluidic substrate, microfluidic device, and driving method thereof are provided. The microfluidic substrate includes a plurality of detection units arranged in an array. A detection unit of the plurality of detection units at least includes a first switch transistor, a second switch transistor, a drive electrode, and a photosensitive element. The microfluid substrate includes a base; a transistor array layer on a side of the base, first switch transistors and second switch transistors being on the transistor array layer; a photosensitive element array layer on a side of the transistor array layer away from the substrate, photosensitive elements being on the photosensitive element array layer; a first electrode layer on a side of the photosensitive element array layer away from the base; and a second electrode layer on a side of the first electrode layer away from the base.Type: ApplicationFiled: March 21, 2023Publication date: May 16, 2024Inventors: Kaidi ZHANG, Baiquan LIN, Wei LI, Yunfei BAI, Linzhi WANG, Yukun HUANG, Kerui XI
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Publication number: 20240151687Abstract: Provided are a solution detection circuit and apparatus, a driving method and a solution detection method. The solution detection circuit includes at least one detection unit, the detection unit includes an ion-sensitive field-effect transistor, a first reset switch subunit, a synchronous buck switch subunit, a storage capacitor and an output switch subunit. A threshold voltage of the ion-sensitive field-effect transistor can be directly read.Type: ApplicationFiled: January 16, 2024Publication date: May 9, 2024Applicant: Shanghai Tianma Microelectronics Co., Ltd.Inventors: Wei LI, Kaidi ZHANG, Dongli ZHANG, Liying WANG, Baiquan LIN, Juntao PAN
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Publication number: 20240144891Abstract: Provided are a driver board, a display panel, and a display apparatus. The driver board includes a driver circuit. The driver circuit includes N pixel electrodes, N pixel switches, a data switch, and a storage capacitor, N is a positive integer, and N?2. The storage capacitor includes a reference electrode and a counter electrode. A control terminal of the pixel switch receives a gating signal, a first terminal of the pixel switch is connected to the counter electrode, and a second terminal of the pixel switch is connected to the pixel electrode. The driver board further includes data lines, and each data line is connected to the counter electrode via the data switch.Type: ApplicationFiled: January 9, 2024Publication date: May 2, 2024Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Haotian LU, Linzhi WANG, Baiquan LIN, Zhen LIU, Kerui XI, Kaidi ZHANG, Yifan XING, Xin XU, Huijun JIN
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Publication number: 20240128283Abstract: A detection substrate including a substrate and a plurality of detection units disposed on a side of the substrate, each detection unit including at least an inorganic transistor, an organic transistor, and a photoelectric sensor element, the organic transistor including an organic semiconductor part, in a direction perpendicular to a plane of the substrate, a film layer where the organic semiconductor part is located being located on the side of the film layer where the inorganic transistor is located away from the substrate, the film layer where the organic semiconductor part is located being located on the side of a film layer where the photoelectric sensor element is located away from the substrate, the organic transistor of the detection unit being connected to a sensing electrode, the sensing electrode being located on the side of the film layer where the inorganic transistor is located away from the substrate.Type: ApplicationFiled: December 28, 2022Publication date: April 18, 2024Inventors: Haotian LU, Linzhi WANG, Baiquan LIN, Kerui XI, Shun GONG, Yukun HUANG, Fan XU, Kaidi ZHANG
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Publication number: 20240091766Abstract: Provided is a microfluidic device. The microfluidic device includes a first substrate and a second substrate disposed opposite to each other. A cavity is formed between the first substrate and the second substrate and configured to accommodate liquid. The first substrate includes multiple drive electrodes and multiple first electrodes, and the drive electrodes are disposed on a side of the first electrodes facing the second substrate. At least one of the drive electrodes includes at least one opening, and the at least one opening, along a direction perpendicular to a plane where the first substrate is located, penetrates the drive electrode where the at least one opening is located. An orthographic projection of at least one first electrode on the plane where the first substrate is located covers at least an orthographic projection of one opening on the plane where the first substrate is located.Type: ApplicationFiled: December 20, 2021Publication date: March 21, 2024Inventors: Kaidi ZHANG, Baiquan LIN, Kerui XI, Wei LI, Yunfei BAI, Ping SU
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Publication number: 20240071325Abstract: Provided a microfluidic pixel driving circuit includes n boost modules, where each boost module includes a capacitor and a write unit, and n is a positive integer greater than or equal to 2; a first terminal of a first capacitor is electrically connected to a fixed potential line, a second terminal of the first capacitor is electrically connected to a pixel electrode, and the first capacitor is used for storing a voltage of the pixel electrode; a first write unit is configured to write a first data signal to the pixel electrode according to an enable level of a first scan signal; a first terminal of a second capacitor is electrically connected to the pixel electrode; and a second write unit is configured to write a second data signal to a second terminal of the second capacitor according to an enable level of a second scan signal.Type: ApplicationFiled: November 6, 2023Publication date: February 29, 2024Applicant: Shanghai Tianma Microelectronics Co., Ltd.Inventors: Kaidi Zhang, Baiquan Lin, Yunfei Bai, Wei Li, Kerui Xi
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Patent number: 11839875Abstract: A driving circuit, a method for driving the same, and a microfluidic device are provided. The driving circuit includes a constant voltage writing module configured to transmit a constant voltage to an output terminal of the driving circuit, an AC voltage writing module configured to transmit an AC voltage to the output terminal of the driving circuit, a first switch, and a first capacitor. The first switch includes an input terminal electrically connected to a third signal line, an output terminal electrically connected to control terminals of the AC voltage writing module and the constant voltage writing module, and a control terminal electrically connected to a first scan line. The first capacitor is configured to stabilize a potential of the output terminal the first switch.Type: GrantFiled: May 13, 2022Date of Patent: December 12, 2023Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Kaidi Zhang, Boquan Lin, Yunfei Bai, Wei Li, Shun Gong, Linzhi Wang, Kerui Xi
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Publication number: 20230268449Abstract: A photosensitive transistor includes a substrate and a first semiconductor layer, a first gate, a first electrode, a second electrode and a second semiconductor layer which are located on a side of the substrate. The first semiconductor layer includes a first doped region, a second doped region and a channel region, the second semiconductor layer is in direct contact with the channel region, and an area of the second semiconductor layer is less than an area of the first semiconductor layer. The photosensitive transistor includes a main region and opening regions, and the opening regions are located at a periphery of the main region. The first electrode and the second electrode are in the same layer and insulated from each other and both surround the main region. The second semiconductor layer includes a main body portion located in the main region and auxiliary portions located in the opening regions.Type: ApplicationFiled: May 2, 2023Publication date: August 24, 2023Applicant: Shanghai Tianma Microelectronics Co., Ltd.Inventors: Linzhi WANG, Kerui XI, Kaidi ZHANG, Shun GONG, Yukun HUANG
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Publication number: 20230249181Abstract: A microfluidic apparatus, a driving method, and a formation method are provided in the present disclosure. The apparatus includes a first substrate and a second substrate. The first substrate and the second substrate are both smooth substrates. An electrode array layer is on a side of the first substrate; and a second electrode layer is on a side of the second substrate. The electrode array layer at least includes a plurality of first electrodes and a plurality of second electrodes. The first substrate includes a first region and a second region; the plurality of first electrodes is in the first region; and the plurality of second electrode is in the second region. A distance between the first substrate and the second substrate in the first region is D1 is greater than a distance between the first substrate and the second substrate in the second region is D2.Type: ApplicationFiled: April 26, 2022Publication date: August 10, 2023Inventors: Kaidi ZHANG, Wei LI, Baiquan LIN, Yunfei BAI, Kerui XI, Feng QIN
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Publication number: 20230211345Abstract: A microfluidic chip and a fabrication method of the microfluidic chip are provided. The microfluidic chip includes an array substrate, and a hydrophobic layer disposed on a side of the array substrate. The hydrophobic layer includes at least one through-hole, and a through-hole of the at least one through-hole penetrates through the hydrophobic layer along a direction perpendicular to a plane of the array substrate. The microfluidic chip also includes at least one hydrophilic structure. A hydrophilic structure of the at least one hydrophilic structure is disposed in the through-hole.Type: ApplicationFiled: March 2, 2022Publication date: July 6, 2023Inventors: Wei LI, Baiquan LIN, Kaidi ZHANG, Yunfei BAI, Ping SU, Kerui XI, Zhenyu JIA
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Publication number: 20230213474Abstract: A detection device and a detection method are provided. The detection device includes at least one detection unit. The detection unit includes a first transistor, a second transistor, a third transistor and a fourth transistor that are electrically connected to each other, a gate is disposed above a channel of each of the first transistor, the second transistor, and the third transistor, and an ion-sensitive membrane is covered above a channel of the fourth transistor. The detection device also includes a first voltage signal terminal, a second voltage signal terminal, and a third voltage signal terminal. Further, the detection device includes a first power supply terminal, a first potential output terminal, a second potential output terminal, and a second power supply terminal.Type: ApplicationFiled: February 28, 2022Publication date: July 6, 2023Inventors: Kaidi ZHANG, Baiquan LIN, Huihui JIANG, Luning YANG, Wei LI, Yunfei BAI, Zhenyu JIA, Kerui XI, Feng QIN
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Patent number: 11675161Abstract: The present disclosure a camera optical lens comprising, from an object side to an image side, a first lens having a positive refractive power, a second lens having a positive refractive power, a third lens having a negative refractive power, a fourth lens having a negative refractive power, and a fifth lens having a positive refractive power, the second lens is bonded to the third lens, the camera optical lens satisfying conditions of 0.35?f1/f?0.75. The camera optical lens can achieve excellent optical characteristics while meeting the designing requirement for having a large aperture and a long focal length, and being ultra-thin.Type: GrantFiled: June 9, 2020Date of Patent: June 13, 2023Assignee: AAC Optics Solutions Pte. Ltd.Inventor: Kaidi Zhang
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Publication number: 20230151408Abstract: A gene sequencing structure, a gene sequencing device and a gene sequencing method are provided. The gene sequencing structure includes a substrate, a thin-film transistor array layer located on the substrate and including thin-film transistors that include a first electrode, and a second electrode; an ion-sensitive layer located on a side of the semiconductor layer away from the substrate; a micro-hole layer located on a side of the ion-sensitive layer away from the substrate, including a through-hole passing through the micro-hole layer, at least partially overlapping the semiconductor layer, and used for receiving a to-be-tested single-stranded nucleic acid inside; a conductive structure, located on a side of the layer away from the substrate and electrically connected to the first electrode or the second electrode; and a detection chip, located on a side of the conductive structure away from the substrate and electrically connected to the conductive structure.Type: ApplicationFiled: January 20, 2022Publication date: May 18, 2023Inventors: Baiquan LIN, Kerui XI, Kaidi ZHANG, Wei LI, Yunfei BAI, Ping SU, Junting OUYANG
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Publication number: 20230063019Abstract: A driving circuit, a driving method and a microfluidic substrate are provided. The driving circuit includes a first switching unit, a second switching unit, a reset unit, a first capacitor, and a second capacitor. In a first stage of a driving process of the driving circuit, the first switching unit is turned on, a first voltage signal is transmitted to a first node, the second switching unit is turned on, a second voltage signal is input to an output terminal of the driving circuit, and the driving circuit outputs an AC signal. In a second stage of the driving process, the first switching unit is turned off, the valid signal output by the second scan signal terminal controls the reset unit to be turned on, a third voltage signal is input to the output terminal of the driving circuit for reset, and the driving circuit outputs a DC signal.Type: ApplicationFiled: November 16, 2021Publication date: March 2, 2023Inventors: Kaidi ZHANG, Baiquan LIN, Wei LI, Yunfei BAI, Kerui XI, Feng QIN
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Publication number: 20220314220Abstract: A driving circuit, a method for driving the same, and a microfluidic device are provided. The driving circuit includes a constant voltage writing module configured to transmit a constant voltage to an output terminal of the driving circuit, an AC voltage writing module configured to transmit an AC voltage to the output terminal of the driving circuit, a first switch, and a first capacitor. The first switch includes an input terminal electrically connected to a third signal line, an output terminal electrically connected to control terminals of the AC voltage writing module and the constant voltage writing module, and a control terminal electrically connected to a first scan line. The first capacitor is configured to stabilize a potential of the output terminal the first switch.Type: ApplicationFiled: May 13, 2022Publication date: October 6, 2022Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Kaidi ZHANG, Boquan LIN, Yunfei BAI, Wei LI, Shun GONG, Linzhi WANG, Kerui XI
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Publication number: 20210263264Abstract: The present disclosure a camera optical lens comprising, from an object side to an image side, a first lens having a positive refractive power, a second lens having a positive refractive power, a third lens having a negative refractive power, a fourth lens having a negative refractive power, and a fifth lens having a positive refractive power, the second lens is bonded to the third lens , the camera optical lens satisfying conditions of 0.35?f1/f?0.75. The camera optical lens can achieve excellent optical characteristics while meeting the designing requirement for having a large aperture and a long focal length, and being ultra-thin.Type: ApplicationFiled: June 9, 2020Publication date: August 26, 2021Inventor: Kaidi Zhang