Patents by Inventor Yingming Liu

Yingming Liu 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).

  • Patent number: 11408777
    Abstract: The present disclosure discloses a temperature sensor, a display panel, and a display apparatus, in the field of sensors. The temperature sensor includes a ring oscillator consisting of n levels of phase inverters, where n is an odd number greater than or equal to 1. Each level of phase inverter includes a first thin film transistor (TFT) and a second TFT that are connected in series. An on/off state of the second TFT is configured to be in a normally-on state, an on/off state of the first TFT is configured to be determined by a signal input to the phase inverter, and mobility of an active layer material of the first TFT is greater than mobility of an active layer material of the second TFT.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: August 9, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lijun Zhao, Yingming Liu, Haisheng Wang, ChihJen Cheng, Pengpeng Wang, Chunwei Wu
  • Publication number: 20220246695
    Abstract: A texture recognition apparatus and a manufacturing method thereof are provided. The texture recognition apparatus includes a base substrate, a light source array and an image sensor array. The light source array is on a side of the base substrate and includes a plurality of light sources; the image sensor array is on a side of the base substrate and includes a plurality of image sensors, the plurality of image sensors are configured to receive light emitted from the plurality of light sources and reflected to the plurality of image sensors by a texture for texture collection; at least part of an photosensitive element of at least one image sensor of the plurality of image sensors is inclined relative to a surface of the base substrate.
    Type: Application
    Filed: April 15, 2021
    Publication date: August 4, 2022
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yingming LIU, Xiaoliang DING, Lei WANG, Yunke QIN
  • Publication number: 20220241778
    Abstract: The present disclosure provides a micro-fluidic substrate, a micro-fluidic structure and a driving method thereof. The micro-fluidic substrate of the preset disclosure includes a substrate, and a plurality of driving electrodes on the substrate and configured to drive a droplet to move, the plurality of driving electrodes being in a same layer with a gap space between adjacent driving electrodes. The micro-fluidic substrate further includes: at least one auxiliary electrode on the substrate and configured to drive the droplet to move, an orthographic projection of the auxiliary electrode on the substrate at least partially overlapping with an orthographic projection of the gap space on the substrate, and the auxiliary electrode and the driving electrodes being in different layers.
    Type: Application
    Filed: April 21, 2022
    Publication date: August 4, 2022
    Inventors: Yingming LIU, Xue DONG, Haisheng WANG, Xiaochuan CHEN, Xiaoliang DING, Lei WANG, Changfeng LI, Pinchao GU
  • Patent number: 11402949
    Abstract: A detection panel, a display apparatus, a method for driving the detection panel, and a method for manufacturing the detection panel are provided. The detection panel includes an upper electrode layer, a piezoelectric material layer and a conductive backing layer which are sequentially stacked. The piezoelectric material layer is configured to change an electric field between the upper electrode layer and the conductive backing layer under an ultrasonic wave, and generate an ultrasonic wave under an electric field. The conductive backing layer includes a plurality of noise elimination members, and each of the noise elimination members has a dimension in a direction parallel to the detection panel that gradually decreases in a direction distal to the piezoelectric material layer.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: August 2, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chenyang Zhang, Haisheng Wang, Yingming Liu, Xiufeng Li, Yanling Han, Yuzhen Guo, Lijun Zhao, Peixiao Li
  • Patent number: 11398106
    Abstract: The present disclosure provides an ultrasonic sensor pixel circuit, a driving method thereof and a display panel. The ultrasonic sensor pixel circuit includes a detection module, of which a first terminal is connected with an ultrasonic sensing unit and a second terminal is connected with a first signal terminal, and the detection module is configured to generate a detection voltage according to an electric signal output from the ultrasonic sensing unit under control of the first signal terminal; an output module, of which a first terminal is connected with a third terminal of the detection module and a second terminal is connected with a read line, and the output module is configured to generate an output signal according to the detection voltage and provide the output signal to the read line.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: July 26, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Xiaoliang Ding, Haisheng Wang, Yingming Liu, Bo Chen, Pengpeng Wang
  • Patent number: 11398105
    Abstract: An ultrasonic recognition module, a driving method thereof, and a display device. Multiple receiving electrodes are divided into multiple receiving groups. Pulse signal input ends of driving circuits corresponding to the receiving electrodes in the same receiving group are electrically connected to a same pulse signal input line, and pulse signal input ends of driving circuits corresponding to the receiving electrodes in the different receiving groups are electrically connected to different pulse signal input lines.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: July 26, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pengpeng Wang, Haisheng Wang, Xiaoliang Ding, Yingming Liu, Yangbing Li, Yubo Wang
  • Patent number: 11397495
    Abstract: A fingerprint identification module and a driving method thereof and an electronic device are provided. In the fingerprint identification module, a receiving electrode layer includes a plurality of receiving electrodes; a first driving electrode layer is arranged at a side of a piezoelectric material layer away from the receiving electrode layer and includes a plurality of first driving electrodes; a second driving electrode layer is arranged at a side of the receiving electrode layer away from the piezoelectric material layer and includes a plurality of second driving electrodes; the plurality of first driving electrodes and the plurality of second driving electrodes form a plurality of driving electrode pairs, and in each driving electrode pair, an orthographic projection of the first driving electrode on the piezoelectric material layer is at least partially overlapped with an orthographic projection of the second driving electrode on the piezoelectric material layer.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: July 26, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Yingming Liu, Xiaoliang Ding, Xiufeng Li, Pengpeng Wang
  • Patent number: 11398108
    Abstract: The present disclosure provides a fingerprint detecting device, including: a photosensitive sensing component, a first electrode of which is coupled to a reference signal terminal, a second electrode of which is coupled to a pull-down node; a reset component, coupled to a reset terminal and the pull-down node, configured to reset the pull-down node in a first stage; a voltage output component, coupled to the pull-down node, a selection terminal and an output terminal of the fingerprint detecting device, configured to output a voltage signal to the output terminal of the fingerprint detecting device according to the potential of the pull-down node, the first stage to a second stage, an amount of change in a voltage signal output to the output terminal of the fingerprint detecting device is positively correlated with an amount of change in the potential of the pull-down node.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: July 26, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaoliang Ding, Haisheng Wang, Yingming Liu, ChihJen Cheng, Wei Liu, Xueyou Cao, Pengpeng Wang
  • Patent number: 11397494
    Abstract: The present disclosure discloses a pixel detecting circuit, a method for driving the same, and a touch display panel. The pixel detecting circuit includes: a plurality of pixel detecting modules arranged in an array; and at least one reading line, wherein each of the reading line is connected to a group of pixel detecting modules, and each group of pixel detecting modules comprises at least two columns of pixel detecting modules; wherein a number of pixel detecting modules included in each group of pixel detecting modules are respectively connected to different control signal terminals, and configured to transmit, under driving of control signals outputted from the different control signal terminals, electrical signals to the connected reading line in any one of a time dividing manner and a frequency dividing manner.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: July 26, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaoliang Ding, Xue Dong, Haisheng Wang, Yingming Liu, Lei Wang, Yangbing Li, Jiabin Wang, Xueyou Cao
  • Patent number: 11393871
    Abstract: A method for fabricating an array substrate, a display panel, and a display device is provided. The array substrate is divided into a plurality of pixel regions, and each of the pixel regions is provided with a pixel thin film transistor (TFT). At least one of the pixel regions is provided with a pressure component and a force TFT, the force TFT includes a first electrode, a second electrode and a control electrode, and the pressure component is connected to one of the first electrode and the control electrode of the force TFT. At least one of layer structures of the pixel TFT is disposed in the same layer as a corresponding layer structure of the force TFT.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: July 19, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yuzhen Guo, Xue Dong, Haisheng Wang, Chunwei Wu, Yingming Liu, Xiaoliang Ding, Xueyou Cao, Chihjen Cheng
  • Patent number: 11393241
    Abstract: An imaging backplane, a driving method thereof and a fingerprint identification panel are provided, the imaging backplane includes M rows and N columns of imaging structures, 2M rows of first signal lines, 2N columns of second signal lines, a first reset sub-circuit and a second reset sub-circuit; wherein each imaging structure includes a first imaging unit and a second imaging unit; the first imaging unit of the imaging structure of row i and column j is connected with the first signal line of row 2i-1 and the second signal line of column 2j-1 respectively, and the second imaging unit of the imaging structure of row i and column j is connected with the first signal line of row 2i and the second signal line of column 2j respectively.
    Type: Grant
    Filed: May 25, 2020
    Date of Patent: July 19, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Xiaoliang Ding, Haisheng Wang, Yingming Liu, Lei Wang, Xueyou Cao, Jiabin Wang, Ping Zhang, Yapeng Li
  • Patent number: 11393245
    Abstract: A texture detection circuit, a charging circuit, driving methods and a touch display panel are provided. The texture detection circuit includes a first photosensitive element and a switching sub-circuit. A first electrode of the first photosensitive element is connected with a signal readout line. A second electrode of the first photosensitive element is connected with the switching sub-circuit. The switching sub-circuit is connected with a reverse power end and a charging sub-circuit, and is configured to switch a connection state of the second electrode of the first photosensitive element between a first connection state and a second connection state. The first connection state is a state in which the second electrode of the first photosensitive element is connected with the reverse power end. The second connection state is a state in which the second electrode of the first photosensitive element is connected with the charging sub-circuit.
    Type: Grant
    Filed: May 25, 2020
    Date of Patent: July 19, 2022
    Assignee: BOE Technology Group Co., LTD.
    Inventors: Xiaoliang Ding, Haisheng Wang, Lei Wang, Yunke Qin, Yingming Liu
  • Patent number: 11386690
    Abstract: A fingerprint identification module and a driving method therefor, and a display apparatus. The fingerprint identification module includes a base substrate and a plurality of fingerprint identification regions located on the base substrate, each fingerprint identification region includes a plurality of receiving electrodes, a piezoelectric material layer and a plurality of driving electrodes; and the plurality of receiving electrodes, the piezoelectric material layer and the plurality of driving electrodes form a plurality of ultrasonic sensors.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: July 12, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Xiufeng Li, Yingming Liu, Haisheng Wang, Xue Dong, Yuzhen Guo, Lijun Zhao, Chenyang Zhang, Yaqian Ji, Yanling Han, Peixiao Li
  • Patent number: 11387289
    Abstract: An array substrate includes a substrate, a packaging layer, and at least one sensor. The packaging layer is over the substrate. Each sensor includes a sensing thin-film transistor and a sensing unit, electrically coupled with each other. The sensing thin-film transistor is between the package layer and the substrate, and the sensing unit is over a side of the package layer away from the substrate. The array substrate can also include a plurality of display thin-film transistors. The sensing thin-film transistor in each sensor can be at substantially same film layers, or of a same structure and a same type, as each display thin-film transistor.
    Type: Grant
    Filed: December 25, 2018
    Date of Patent: July 12, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yunke Qin, Xue Dong, Zhifu Li, Haisheng Wang, Yingming Liu, Yuzhen Guo, Pinchao Gu, Lin Zhou
  • Patent number: 11380264
    Abstract: The present disclosure provides a pixel circuit, a method for driving the pixel circuit and a display device. A driving module of the pixel unit circuit includes a pixel compensation unit configured to transmit a read-control signal to the corresponding row of read-control line and transmit a gate drive-control signal to the gate drive circuit. The gate drive circuit is configured to, based on the gate drive-control signal, generate a plurality of gate drive signals, thereby controlling the rows of gate lines to be turned off in a reading period. One gate drive signal is corresponding to one row of gate line.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: July 5, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaoliang Ding, Xue Dong, Haisheng Wang, Yingming Liu, Changfeng Li, Wei Liu
  • Patent number: 11380749
    Abstract: A display panel which may include a plurality of sub-pixel units (1) and a plurality of photosensitive detection units (2) corresponding to the plurality of sub-pixel units (1) respectively. Each of the plurality of the photosensitive detection units (2) may include at least two photosensitive sensors (21).
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: July 5, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yingming Liu, Xue Dong, Haisheng Wang, Xiaoliang Ding, Changfeng Li, Wei Liu
  • Publication number: 20220207908
    Abstract: The present disclosure relates to the field of fingerprint identification technology, and provides a fingerprint identification substrate, a fingerprint identification method and a display device. The fingerprint identification substrate includes: a base substrate; at least one point light source arranged on the base substrate and configured to emit signal light; and at least one photosensitive unit arranged at a side of the base substrate away from the point light source, and configured to receive the signal light reflected by a finger and identify a fingerprint. Each photosensitive unit includes a first photosensitive sensor and a second photosensitive sensor independent of each other, a light filtration structure is arranged at a side of the second photosensitive sensor facing the point light source and configured to merely allow light in a first direction to pass therethrough, and the first direction is perpendicular to the base substrate.
    Type: Application
    Filed: February 22, 2021
    Publication date: June 30, 2022
    Inventors: Xiaoliang DING, Haisheng WANG, Yingming LIU, Yapeng LI, Jiabin WANG, Changfeng LI
  • Patent number: 11373386
    Abstract: A device for identifying a pattern over a first surface includes a photosensitive layer, and a light-guiding layer disposed between the photosensitive layer and the first surface. The photosensitive layer includes a plurality of photosensitive elements, each configured to convert incident light into an electrical signal. The light-guiding layer includes a plurality of light-guiding units, each positionally corresponding to one of the plurality of photosensitive elements. Each light-guiding unit includes a plurality of light-transmitting portions, each configured to guide a light beam reflected from a feature of the pattern positionally corresponding thereto to transmit therethrough and reach one of the plurality of photosensitive elements corresponding to the each of the plurality of light-guiding units. The device can be used for identification of fingerprint, as well as other biometric or non-biometric features, and has a reduced thickness and an improved accuracy for pattern identification.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: June 28, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pinchao Gu, Haisheng Wang, Chunwei Wu, Yingming Liu, Rui Xu, Changfeng Li, Lijun Zhao, Yanan Jia, Yuzhen Guo, Yunke Qin
  • Patent number: 11367767
    Abstract: The present disclosure is related to a light emitting diode. The light emitting diode includes a first transparent electrode layer; a light emitting layer on the first transparent electrode layer; a reflective electrode layer on a surface of the light emitting layer opposite from the first transparent electrode layer, and a second transparent electrode layer. The reflective electrode layer may include transmission hole. The second transparent electrode layer may cover or fill the transmission hole. The transmission hole may be configured to transmit light emitted from the light emitting layer to pass through the second transparent electrode layer.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: June 21, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaoliang Ding, Xue Dong, Haisheng Wang, Yingming Liu, Wei Liu, Xueyou Cao
  • Patent number: 11367395
    Abstract: The present disclosure discloses a pixel driving circuit, a driving method for the pixel driving circuit, a display panel and a display apparatus. The pixel driving circuit for driving a light emitting device includes: a threshold compensation subcircuit, a driving subcircuit and an optical signal detection subcircuit; the threshold compensation subcircuit is coupled to a control electrode of a driving transistor, and a first electrode of the driving transistor is coupled to the light emitting device; the optical signal detection subcircuit is coupled to the threshold compensation subcircuit; and the optical signal detection subcircuit is configured to detect an optical signal which is incident on a region where the optical signal detection subcircuit is located.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: June 21, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yingming Liu, Haisheng Wang, Xiaoliang Ding, Lei Wang, Pengpeng Wang, Changfeng Li