Patents by Inventor Xueyou CAO

Xueyou CAO 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).

  • Publication number: 20210124441
    Abstract: Disclosed are a display substrate, a display device and a detection method by using a display device. The display substrate includes at least one sub-pixel. the at least one sub-pixel includes a first region and a second region, and the at least one sub-pixel includes a light emitting element which is arranged in the first region, and a pixel circuit structure and a photosensitive stucture which are arranged in the second region, the pixel circuit structure and the photosensitive structure are stacked, and the photosensitive structure is closer to a light exiting side of the display substrate than the pixel circuit structure.
    Type: Application
    Filed: October 23, 2019
    Publication date: April 29, 2021
    Inventors: Xiaoliang DING, Haisheng WANG, Yingming LIU, Pengpeng WANG, Likai DENG, Yangbing LI, Xueyou CAO, Ping ZHANG
  • Publication number: 20210117640
    Abstract: A fingerprint identification and detection circuit, a fingerprint identification and detection method and a display device are provided. The fingerprint identification and detection circuit includes a storage capacitor, a capacitor control circuit and a photoelectric conversion element; the photoelectric conversion element is configured to, when in a photoelectric conversion state, convert a received optical signal into a corresponding electrical signal; the capacitor control circuit is provided between the storage capacitor and the photoelectric conversion element, and is configured to perform control to store at least part of the electrical signal to the storage capacitor under control of a capacitor control signal.
    Type: Application
    Filed: October 16, 2019
    Publication date: April 22, 2021
    Inventors: Xueyou CAO, Xiaoliang DING, Haisheng WANG, Wenjuan WANG, Pengpeng WANG, Yapeng LI, Ping ZHANG, Likai DENG
  • Patent number: 10979005
    Abstract: Embodiments of the present disclosure provide a current amplification circuitry and a driving method thereof, and a fingerprint detection device. The current amplification circuitry includes a voltage control circuit, a plurality of first current amplification circuits, and a second current amplification circuit. The voltage control circuit provides a voltage control signal to the plurality of first current amplification circuits. The first current amplification circuit includes a current mirror, and the current mirror is coupled to a voltage input terminal, the voltage control circuit, and a first input terminal of the second current amplification circuit. The first current amplification circuit amplifies a current from the voltage input terminal according to the voltage control signal provided by the voltage control circuit, and provides the amplified current to the second current amplification circuit.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: April 13, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaoliang Ding, Haisheng Wang, Yingming Liu, Xueyou Cao, Ping Zhang, Yanling Han
  • Patent number: 10976854
    Abstract: Embodiments of the present disclosure provide a force touch display panel, a detection method thereof, and a display apparatus. The force touch display panel includes: a substrate; a display structure disposed in a display area on the substrate; and a force common electrode layer, a piezoelectric material layer, and a force sense electrode layer, which are stacked in sequence over the display structure. The force sense electrode layer includes a force sense electrode configured for identifying different forces, and the force sense electrode additionally serves as a touch detection electrode configured for identifying a touch operation.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: April 13, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yuzhen Guo, Xue Dong, Haisheng Wang, Yingming Liu, Xiaoliang Ding, Xueyou Cao, Lijun Zhao, Chihjen Cheng
  • Patent number: 10970514
    Abstract: Provided are a compensation structure and a driving method thereof, a display panel, and a display device. The compensation structure includes a photoelectric sensing circuit, a fingerprint recognition circuit and a compensation circuit. The photoelectric sensing circuit is configured to respectively generate a first electric signal and a second electric signal according to received first optical signal and second optical signal. The fingerprint recognition circuit is configured to be connected to the photoelectric sensing circuit to receive the first electric signal, and to employ the first electric signal to determine a fingerprint pattern. The compensation circuit is configured to be connected to the photoelectric sensing circuit to receive the second electric signal, and to employ the second electric signal to perform optical compensation so as to adjust the first electric signal.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: April 6, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xueyou Cao, Haisheng Wang, Xiaoliang Ding, Chih Jen Cheng, Yanling Han, Wei Liu, Pengpeng Wang, Ping Zhang
  • Publication number: 20210097251
    Abstract: The present disclosure relates to a circuit for fingerprint identification and a driving method thereof, a display panel, and a display device. The circuit for fingerprint identification of the present disclosure includes a voltage adjustment circuit, a photodiode, and a signal output circuit; wherein the voltage adjustment circuit is electrically connected with an anode of the photodiode, and the signal output circuit is electrically connected with a cathode of the photodiode; the voltage adjustment circuit is configured to adjust an anode voltage input to the photodiode to enable the photodiode to work in a linear region; and the signal output circuit is configured to amplify and output a signal output by the photodiode.
    Type: Application
    Filed: April 29, 2020
    Publication date: April 1, 2021
    Inventors: Xueyou CAO, Pengpeng WANG, Wenjuan WANG, Xiaoliang DING, Haisheng WANG, Ping ZHANG
  • Patent number: 10949025
    Abstract: The present disclosure provides an optical touch device and a manufacturing method thereof, a display and an electronic device, wherein the optical touch device comprises: a pixel array (11) that comprises a plurality of pixel sub-circuits (101) each of which comprises M first pixels (1011) and N second pixels (1012), wherein detection rays with a preset frequency are emitted by the second pixels (1012), where M and N are positive integers; a light receiving array (12) that comprises a plurality of light receivers (121) corresponding, at a one-to-one basis, to the plurality of pixel sub-circuits (101), wherein each of the light receivers (121) generates an sensing signal by receiving reflected rays of the detection rays emitted by a corresponding second pixel (1012); and a detection circuit (13) connected with the plurality of light receivers (121), wherein the detection circuit (13) performs touch positioning.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: March 16, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaoliang Ding, Haisheng Wang, Yingming Liu, Wei Liu, Chih-Jen Cheng, Pengpeng Wang, Xueyou Cao, Ping Zhang, Chun-Wei Wu
  • Publication number: 20210074227
    Abstract: Disclosed herein is an apparatus comprising: a first switch and a second switch; wherein the first switch is configured to apply a drive signal to a first electrode when the first switch receives a control signal; wherein the second switch is configured to electrically isolate the first electrode from a second electrode when the second switch receives the control signal; wherein the second switch is configured to short-circuit the first electrode to the second electrode when the second switch does not receive the control signal; wherein the first electrode and the second electrode face each other and are separated by a gap configured to accommodate a liquid droplet.
    Type: Application
    Filed: April 30, 2019
    Publication date: March 11, 2021
    Inventors: Ping ZHANG, Haisheng WANG, Xiaoliang DING, Yingming LIU, Xueyou CAO, Pengpeng WANG, Likai DENG, Pinchao GU, Yunke QIN
  • Patent number: 10936053
    Abstract: The present disclosure provides an interaction system of three-dimensional space and a method for operating the same, comprising: determining visual field space according to an eye position of an operator and an angle at which the eye is watching, and determining absolute interaction space and relative interaction space according to respective joint positions of the operator and the visual field space, thereby achieving dividing of areas of the space; determining an operation that matches a current action and needs to be performed by the operator on a selected virtual object according to a relationship among the current action of the operator, the virtual object viewed by the operator and the absolute interaction space, such that when the operator makes the corresponding action, the operation matching the action of the operator is performed on the virtual object; outputting the generated corresponding three-dimensional image display signal to a three-dimensional image display device to complete somatosensory
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: March 2, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaoliang Ding, Xue Dong, Haisheng Wang, Chunwei Wu, Yingming Liu, Pengpeng Wang, Chihjen Cheng, Yanling Han, Xueyou Cao
  • Patent number: 10935422
    Abstract: The present disclosure provides an optical measurement module which includes a detection sub-circuit, a comparison sub-circuit and a blocking layer, the blocking layer includes at least one blocking element, the detection sub-circuit comprises a first photosensitive element, and the detection sub-circuit is configured to output a detection signal according to light irradiation received by the first photosensitive element and an input signal of the detection sub-circuit; the comparison sub-circuit includes a second photosensitive element, the at least one blocking element in the blocking layer covers at least the second photosensitive element, the comparison sub-circuit is configured to output a comparison signal according to an input signal of the comparison sub-circuit; wherein the first photosensitive element and the second photosensitive element have a same structure, so that they have a same response to light irradiation and a same response to environment.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: March 2, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Haisheng Wang, Xiaoliang Ding, Chihjen Cheng, Yanling Han, Wei Liu, Ping Zhang, Pengpeng Wang, Xueyou Cao, Yanan Jia
  • Patent number: 10929638
    Abstract: The disclosure discloses a display panel, a method for driving the same, and a display device, where the display panel includes a plurality of detection circuits arranged in an array, each detection circuit includes a control component, and a plurality of photosensitive recognition components arranged in an array; the control component is configured to obtain electric signals provided by the plurality of photosensitive recognition components, to process and then output, in a process of recognizing a fingerprint, the electric signals provided by the plurality of photosensitive recognition components separately, and to superimpose, in a process of detecting a touch, the electric signals provided by the plurality of photosensitive recognition components, and to process and output an electric signal resulting from the superimposition.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: February 23, 2021
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Xueyou Cao, Haisheng Wang, Xiaoliang Ding, Lei Wang, Wei Liu, Yanling Han, Bo Chen, Pengpeng Wang, Ping Zhang, Chihjen Cheng, Likai Deng
  • Patent number: 10923507
    Abstract: An array substrate includes: a plurality of pixel units arranged in an array, selection lines, a reset circuit and readout circuits. Second terminals of transistors in pixel units belonging to a same column are connected to at least two of the read lines, so that a part of the pixel units are connected to a same read line, and another part of the pixel units are connected to the other one of the at least two of the read lines. For each column of the pixel units, each of the read lines is connected to one of the readout circuits corresponding to the column of the pixel units through a switching element; and for each column of the pixel units, each of the read lines is connected to the reset circuit through a switching element.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: February 16, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chih Jen Cheng, Pengpeng Wang, Wei Liu, Xueyou Cao, Yanling Han, Ping Zhang, Xiaoliang Ding
  • Patent number: 10915775
    Abstract: Disclosed are a noise detection circuit, a noise detection method, and a print recognition apparatus. The noise detection circuit includes a differential amplifier, an analog-to-digital converter, a control circuit, and a first switch circuit; the control circuit is configured to control the first switch circuit to make the first input signal terminal connected with the reference signal terminal or grounded, and to make the second input signal terminal connected with the reference signal terminal or grounded, and when the first input signal terminal is connected with the reference signal terminal or grounded, and the second input signal terminal is connected with the reference signal terminal or grounded, to analyze the digital signal output by the analog-to-digital converter to determine a source of noise of the print recognition apparatus.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: February 9, 2021
    Assignee: BOE Technology Group Co., Lid.
    Inventors: Pengpeng Wang, Haisheng Wang, Xiaoliang Ding, Chih-Jen Cheng, Yanling Han, Wei Liu, Xueyou Cao, Ping Zhang
  • Patent number: 10908759
    Abstract: A touch substrate includes a common electrode, a piezoelectric material layer and a touch electrode sequentially disposed on the substrate. The touch electrode includes a plurality of touch driving electrodes and a plurality of touch sensing electrodes, which cross with each other and are insulated from one another. The touch driving electrode includes a plurality of first touch sub-electrodes that are electrically connected. An overlapping area of front projections of the common electrode and each of the first touch control sub-electrodes on the substrate is smaller than an area of a pattern enclosed by a peripheral boundary of the first touch sub-electrodes.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: February 2, 2021
    Assignee: Boe Technology Group Co., Ltd.
    Inventors: Yuzhen Guo, Yingming Liu, Haisheng Wang, Xiaoliang Ding, Xueyou Cao
  • Publication number: 20210026178
    Abstract: The present disclosure provides an array substrate, comprising a substrate and a display element arranged above the substrate. The array substrate further comprises an antenna structure for transmitting and receiving electromagnetic waves. The antenna structure comprises a signal shielding layer and an antenna patch layer arranged on the substrate. The antenna patch layer and the signal shielding layer are spaced apart through a dielectric layer. The antenna patch layer is beneath the signal shielding layer such that the antenna structure transmits electromagnetic waves towards the bottom of the substrate and receives the electromagnetic waves from the bottom of the substrate. The present disclosure further provides a display panel and a man-machine interactive terminal.
    Type: Application
    Filed: December 18, 2017
    Publication date: January 28, 2021
    Inventors: Pengpeng WANG, Xue DONG, Haisheng WANG, Chunwei WU, Xiaoliang DING, Chihjen CHENG, Wei LIU, Yanling HAN, Xueyou CAO, Ping ZHANG, Changfeng LI, Yanan JIA, Yuzhen GUO
  • Publication number: 20210019016
    Abstract: The present disclosure provides a touch circuit, a touch device, and a touch method. The touch circuit includes: at least one photodetection circuit, and a first capacitor electrically connected to the at least one photodetection circuit. Each photodetection circuit is configured to detect modulated light reflected by a touch object, generate a modulation signal according to the modulated light, and output the modulation signal through the first capacitor.
    Type: Application
    Filed: May 27, 2019
    Publication date: January 21, 2021
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaoliang DING, Xue DONG, Haisheng WANG, Yingming LIU, Xueyou CAO, Wei LIU
  • Patent number: 10890607
    Abstract: A sense circuit for a piezoresistive sensor is provided that comprises: an energy storage circuit coupled to the piezoresistive sensor via a first node; a charge control circuit coupled to the first node and configured to charge the energy storage circuit to a predetermined potential; a discharge control circuit configured to allow the energy storage circuit to discharge through the piezoresistive sensor; and a readout circuit coupled to the first node and configured to output a sensed voltage based on a level of charges stored by the energy storage circuit.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: January 12, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chihjen Cheng, Xiaoliang Ding, Pengpeng Wang, Xueyou Cao, Yuzhen Guo
  • Patent number: 10884538
    Abstract: Examples of the disclosure provide an OLED touch display panel, a display device and a method for detecting a touch operation zone, relate to the field of touch display, and may achieve an incell touch display panel. The display panel has an OLED component, which comprises a first electrode; a piezoresistive material layer, which is above the first electrode of the OLED component; a touch electrode layer, which is above the piezoresistive material layer; and a first stripe electrode, a second stripe electrode, a third stripe electrode and a fourth stripe electrode, which are provided above the touch electrode layer and not contacted with each other.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: January 5, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaoliang Ding, Haisheng Wang, Yingming Liu, Xueyou Cao, Wei Liu, Ping Zhang
  • Patent number: 10871862
    Abstract: The present disclosure provides a touch force detecting method and apparatus, a touch panel and a display apparatus. The touch force detecting method comprises: Step S1, obtaining the number N of touch points on a panel to be detected, where N is an integer greater than or equal to 1; Step S2, selecting M test positions arbitrarily on the panel to be detected, where M is an integer greater than or equal to N, and obtaining an amount of capacitance change at each of the test positions; Step S3, obtaining a panel deformation amount at each of the test positions according to the amount of capacitance change at each of the test positions; and Step S4, calculating a touch force at the touch point according to a correspondence between the panel deformation amount and the touch force.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: December 22, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Xueyou Cao
  • Patent number: 10866648
    Abstract: The present disclosure relates to a display substrate. The display substrate includes an active region and a non-active region, and a depth camera is disposed in the non-active region. The depth camera includes at least one receiving unit and a plurality of diffractive units. At least a part of the diffractive units includes an infrared light emitting device disposed on the substrate that emits infrared light. The part of the diffractive units includes a diffractive optical element disposed on the infrared light emitting device and used to transmit the infrared light emitted from the infrared light emitting device to an object. The receiving unit includes an infrared photosensitive device disposed on the substrate and used to receive the infrared light reflected by the object.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: December 15, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pengpeng Wang, Haisheng Wang, Xiaoliang Ding, Chih Jen Cheng, Yanling Han, Yangbing Li, Xueyou Cao, Wei Liu, Ping Zhang