Patents by Inventor Zhanjie MA

Zhanjie MA 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: 20210207993
    Abstract: A photoelectric detection circuit and a photoelectric detector are provided. The photoelectric detection circuit includes a first sub-circuit and a second sub-circuit. The first sub-circuit includes a first photoelectric sensing element, and the second sub-circuit includes a second photoelectric sensing element, and an electrical characteristic of the first photoelectric sensing element is substantially identical to an electrical characteristic of the second photoelectric sensing element, and the second photoelectric sensing element is shielded to prevent light from being incident on the second photoelectric sensing element.
    Type: Application
    Filed: December 6, 2017
    Publication date: July 8, 2021
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yongming SHI, Zhanjie MA, Hui TIAN, Chun WANG
  • Publication number: 20210201727
    Abstract: The present application discloses a pixel circuit of a photo detector panel. The pixel circuit includes a reset sub-circuit for resetting voltages at a first node and a second node, a photoelectric-conversion sub-circuit coupled to the first node and configured to convert an optical signal to a first voltage at the first node, a compensation sub-circuit coupled between the first node and the second node and configured to store the first voltage and determine a second voltage at the second node. The pixel circuit further includes an integration sub-circuit coupled to the first node and to determine a third voltage at the second node to be applied to a gate of a driving transistor to generate a current flowing from an input port provided with a bias voltage to an output port. The current is substantially independent from a threshold voltage of the driving transistor and the bias voltage.
    Type: Application
    Filed: December 15, 2017
    Publication date: July 1, 2021
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Zhanjie Ma
  • Publication number: 20210199497
    Abstract: A photoelectric detection circuit and a photoelectric detector are provided. The photoelectric detection circuit includes a first photoelectric sensing element and a second photoelectric sensing element, and an electrical characteristic of the first photoelectric sensing element is substantially identical to an electrical characteristic of the second photoelectric sensing element; the first photoelectric sensing element outputs a first sensed electrical signal, and the second photoelectric sensing element outputs a second sensed electrical signal; a polarity of the first sensed electrical signal is opposite to a polarity of the second sensed electrical signal, and an amplitude value of the first sensed electrical signal is substantially identical to an amplitude value of the second sensed electrical signal.
    Type: Application
    Filed: December 18, 2017
    Publication date: July 1, 2021
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yongming SHI, Zhanjie MA, Hui TIAN, Chun WANG
  • Patent number: 11011119
    Abstract: The present disclosure relates to an array substrate and a display screen. The array substrate includes a first gate drive unit located in the non-display area and corresponding to pixels in the special-shaped display region, and a second gate driving unit located in the non-display area and corresponding to pixels in the non-special-shaped display region. A width-length ratio of a first output transistor of the first gate driving unit is smaller than a width-length ratio of a second output transistor of the second gate driving unit.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: May 18, 2021
    Assignee: KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD.
    Inventors: Longfei Fan, Longyan Wang, Zhanjie Ma, Siming Hu, Zhenzhen Han, Hui Zhu
  • Patent number: 11006063
    Abstract: A pixel readout circuit including a reset circuit configured to reset a first node to a first power supply voltage in response to a signal on a first scan line being active; a photodetector configured to generate, responsive to incident light, a charge signal and integrate the charge signal, the integrated charge signal causing a change in a voltage level at the first node; a photosensitive circuit configured to generate a pixel current in response to the change in the voltage level at the first node; and a switch circuit configured to transfer the pixel current to a signal readout line for readout in response to a signal on a second scan line being active.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: May 11, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaohui Liu, Zhanjie Ma
  • Patent number: 10971636
    Abstract: A photoelectric detection structure, a manufacturing method therefor, and a photoelectric detector. The photoelectric detection structure includes: a base substrate; an electrode strip, which is located on the base substrate; a semiconductor layer, which is located at a side of the base substrate that faces the electrode strip; an insulating layer, which is located between the electrode strip and the semiconductor layer, the insulating layer including a thickness-increased portion, and the thickness-increased portion being located on at least one edge of the electrode strip.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: April 6, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Zhanjie Ma
  • Publication number: 20200389613
    Abstract: A pixel readout circuit including a reset circuit configured to reset a first node to a first power supply voltage in response to a signal on a first scan line being active; a photodetector configured to generate, responsive to incident light, a charge signal and integrate the charge signal, the integrated charge signal causing a change in a voltage level at the first node; a photosensitive circuit configured to generate a pixel current in response to the change in the voltage level at the first node; and a switch circuit configured to transfer the pixel current to a signal readout line for readout in response to a signal on a second scan line being active.
    Type: Application
    Filed: March 13, 2018
    Publication date: December 10, 2020
    Inventors: Xiaohui LIU, Zhanjie MA
  • Patent number: 10825946
    Abstract: The disclosure discloses a photoelectric detector and a photoelectric detection device, the photoelectric detector includes: a photosensitive active layer (100) including a first surface (1) and a second surface (2) opposite to each other; a first electrode (200) and a second electrode (300) located on the first surface (1) of the photosensitive active layer (100), and arranged spaced apart from each other; and a third electrode (400) located on the second surface (2) of the photosensitive active layer (100); where the first electrode (200) and the second electrode (300) respectively contact directly with the first surface (1) of the photosensitive active layer (100), and the third electrode (400) contacts directly with the second surface (2) of the photosensitive active layer (100). The photoelectric detector can improve the contrast between light current and dark current.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: November 3, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Zhanjie Ma
  • Publication number: 20200319023
    Abstract: A photosensitive circuit, a driving method thereof and an electronic device are disclosed. The photosensitive circuit includes a photosensitive element and a signal acquisition circuit. The photosensitive element is configured to be able to generate a photosensitive voltage signal by changing threshold characteristic of the photosensitive element according to intensity of light incident into the photosensitive element; and the signal acquisition circuit configured to convert the photosensitive voltage signal into a photosensitive current signal.
    Type: Application
    Filed: March 13, 2018
    Publication date: October 8, 2020
    Inventor: Zhanjie MA
  • Patent number: 10692441
    Abstract: A drive circuit, a display panel, a display device and a drive method. The drive circuit includes a plurality of shift registers; a first switch circuit connected with the shift registers, which is configured to selectively output output signals of the shift registers or a first voltage based on a first control signal and a second control signal; and a second switch circuit connected with the shift registers, which is configured to selectively output the output signals of the shift registers or the first voltage based on a third control signal and a fourth control signal. A set of shift registers can simultaneously or individually drive two display regions.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: June 23, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Zhanjie Ma
  • Patent number: 10665147
    Abstract: The present disclosure provides a photosensitive circuit, a method of driving a photosensitive circuit and a display device. The photosensitive circuit includes: a first photosensitive transistor, configured to be turned on in response to a signal of a first node, to transmit a current flowing through the first photosensitive transistor to a second node and generate an induced electrical signal based on an incident light; a second photosensitive transistor, configured to be turned on in response to a first scan signal, to transmit a voltage of the first scan signal to the first node and generate an induced electrical signal based on an incident light; and a first switch, configured to be turned on in response to the first scan signal, to transmit a signal of the second node to a reading terminal. Threshold voltages of both photosensitive transistors are negatively correlated with an intensity of the incident light.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: May 26, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhiliang Wang, Zhanjie Ma
  • Patent number: 10657883
    Abstract: There provide a pixel driving circuit and driving method thereof, an array substrate and display apparatus, wherein the pixel driving circuit comprises: a data line; a gate line; a first power supply line; a second power supply line; a light emitting device connected to the second power supply line; a driving transistor connected to the first power supply line; a storage capacitor having a first terminal connected to a gate of the driving transistor and configured to transfer information including the data voltage to the gate of the driving transistor; a resetting unit configured to reset a voltage across the storage capacitor as a predetermined signal voltage; a data writing unit configured to write information including the data voltage into the second terminal of the storage capacitor; a compensating unit configured to write information including a threshold voltage of the driving transistor and information of the first power supply voltage into the first terminal of the storage capacitor; and a light emit
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: May 19, 2020
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Liang Sun, Ying Wang, Tuo Sun, Zhanjie Ma, Lintao Zhang, Lujiang Huangfu
  • Patent number: 10585514
    Abstract: A pixel circuit, a display panel and a driving method thereof are disclosed. The pixel circuit includes a light-emitting element, a light-emitting control circuit, a touch detection circuit and a signal line. The light-emitting control circuit is electrically connected to the light-emitting element, and is configured to drive the light-emitting element to emit light; the touch detection circuit is configured to determine whether or not a touch action occurs based on intensity of light incident onto the touch detection circuit; and the signal line is configured to be electrically connected to an input terminal of the light-emitting control circuit and an output terminal of the touch detection circuit.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: March 10, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Zhanjie Ma
  • Patent number: 10553632
    Abstract: The present disclosure provides a photoelectric detection device and a photoelectric detection apparatus. The photoelectric detection device includes a substrate, a reflective structure provided on the substrate and a photoelectric conversion layer provided on the reflective structure, and has a plurality of pixel regions and a plurality of interval regions each provided between two adjacent pixel regions. The photoelectric conversion layer includes a pixel photoelectric conversion portion in the pixel region; the reflective structure includes a pixel reflective portion in the pixel region and an interval reflective portion in the interval region, and the interval reflective portion is configured to reflect light directed to the interval reflective portion from the pixel photoelectric conversion portion back to the pixel photoelectric conversion portion.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: February 4, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Zhanjie Ma
  • Patent number: 10540923
    Abstract: The present disclosure relates to display technology, and more particularly, to a shift register, a method for driving the shift register, a gate driving circuit and a display apparatus. The shift register comprises a pull-up module, a pull-down module and a holding module. The pull-up module is connected to the holding module and the pull-down module, an electrical connection point of the pull-up module and the pull-down module constituting an output signal terminal, and configured to pull up a signal outputted at the output signal terminal in response to a first clock signal. The pull-down module is connected to the holding module and configured to pull down the signal outputted at the output signal terminal in response to a second clock signal. The holding module is configured to hold a signal outputted from the pull-up module and the pull-down module at a fixed level.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: January 21, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Zhanjie Ma
  • Publication number: 20200013916
    Abstract: The disclosure discloses a photoelectric detector and a photoelectric detection device, the photoelectric detector includes: a photosensitive active layer (100) including a first surface (1) and a second surface (2) opposite to each other; a first electrode (200) and a second electrode (300) located on the first surface (1) of the photosensitive active layer (100), and arranged spaced apart from each other; and a third electrode (400) located on the second surface (2) of the photosensitive active layer (100); where the first electrode (200) and the second electrode (300) respectively contact directly with the first surface (1) of the photosensitive active layer (100), and the third electrode (400) contacts directly with the second surface (2) of the photosensitive active layer (100). The photoelectric detector can improve the contrast between light current and dark current.
    Type: Application
    Filed: July 21, 2017
    Publication date: January 9, 2020
    Inventor: Zhanjie Ma
  • Patent number: 10528169
    Abstract: The present disclosure provides a pixel circuit, a driving method thereof, a display module, a driving method thereof and a display device. The pixel circuit includes a touch pixel driving sub-circuit. The touch pixel driving sub-circuit includes a pixel driving circuit, a control circuit and a photosensitive touch circuit. The photosensitive touch circuit outputs a touch sensing current signal. The pixel driving circuit is configured to extract a threshold voltage signal of a driving transistor, and output the threshold voltage signal. The control circuit is configured to control whether or not a touch sensing current signal output end is to be electrically connected to a touch display signal line under the control of a touch reading control end, and control whether or not a compensation signal output end is to be electrically connected to the touch display signal line under the control of a display compensation control end.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: January 7, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Zhanjie Ma
  • Patent number: 10504981
    Abstract: The present disclosure provides an array substrate including a display region and a peripheral region. The display region comprises an anode, an organic material functional layer and a cathode that are arranged on a base substrate in sequence. The peripheral region includes a plurality of touch electrode leads that is insulated from each other, and each of the touch electrode leads includes a first touch electrode lead and a second touch electrode lead. The first touch electrode lead is arranged at a top position of the array substrate relative to an upper surface of the base substrate, and electrically connected to a corresponding touch electrode arranged on a packaging substrate. The second touch electrode lead is arranged at a position close to the base substrate. A thickness of the first touch electrode lead is greater than a thickness of the cathode.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: December 10, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Zhanjie Ma
  • Publication number: 20190371251
    Abstract: The present disclosure relates to an array substrate and a display screen. The array substrate includes a first gate drive unit located in the non-display area and corresponding to pixels in the special-shaped display region, and a second gate driving unit located in the non-display area and corresponding to pixels in the non-special-shaped display region. A width-length ratio of a first output transistor of the first gate driving unit is smaller than a width-length ratio of a second output transistor of the second gate driving unit.
    Type: Application
    Filed: August 13, 2019
    Publication date: December 5, 2019
    Inventors: Longfei FAN, Longyan WANG, Zhanjie MA, Siming HU, Zhenzhen HAN, Hui ZHU
  • Patent number: 10497454
    Abstract: A shift register and an operation method thereof as well as a gate driving circuit and a display device. The shift register includes The shift register includes an input module, a pull-up module, a pull-up control module, an output module, and a noise reducing module. It can reduce noises at the output terminal effectively.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: December 3, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Zhanjie Ma