Patents by Inventor Hualing Yang

Hualing Yang 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: 11967285
    Abstract: A display panel includes sub-pixels and set voltage generation circuit(s); each sub-pixel includes a pixel driving circuit and a first light-emitting device, the pixel driving circuit includes at least a driving transistor and a sensing transistor, a first electrode of the sensing transistor is electrically connected to a sensing signal terminal; an output terminal of a set voltage generation circuit is electrically connected to a sensing signal terminal of at least one sub-pixel; the set voltage generation circuit is configured to generate a set voltage signal and transmit it to a sensing transistor of the at least one sub-pixel and a second electrode of a driving transistor of the at least one sub-pixel in a sensing period; and a voltage of the set voltage signal is substantially equal to a voltage of the second electrode of the driving transistor of the at least one sub-pixel in the driving period.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: April 23, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xinshe Yin, Xinbin Han, Hualing Yang
  • Publication number: 20230368739
    Abstract: A display panel includes sub-pixels and set voltage generation circuit(s); each sub-pixel includes a pixel driving circuit and a first light-emitting device, the pixel driving circuit includes at least a driving transistor and a sensing transistor, a first electrode of the sensing transistor is electrically connected to a sensing signal terminal; an output terminal of a set voltage generation circuit is electrically connected to a sensing signal terminal of at least one sub-pixel; the set voltage generation circuit is configured to generate a set voltage signal and transmit it to a sensing transistor of the at least one sub-pixel and a second electrode of a driving transistor of the at least one sub-pixel in a sensing period; and a voltage of the set voltage signal is substantially equal to a voltage of the second electrode of the driving transistor of the at least one sub-pixel in the driving period.
    Type: Application
    Filed: March 4, 2022
    Publication date: November 16, 2023
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xinshe YIN, Xinbin HAN, Hualing YANG
  • Patent number: 11756457
    Abstract: The present disclosure provides a flexible display screen and a display device. The flexible display screen includes: a substrate; a backing film stacked on a side of the substrate facing away from a light-emitting surface of the flexible display screen; and a pressure sensor stacked on a side of the backing film facing away from the substrate and configured to output a signal related to a force applied on the flexible display screen.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: September 12, 2023
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lina Liu, Hualing Yang
  • Publication number: 20230015554
    Abstract: A display substrate and a preparation method therefor, and a display apparatus. The display substrate includes multiple pixel units each including multiple sub-pixels, the multiple sub-pixels includes first color sub-pixels. Each sub-pixel includes a color filter structure layer, the color filter structure layer includes a black matrix defining a pixel opening, and a color filter unit covering the pixel opening. The display substrate includes a first display region and a second display region on the periphery of the first display region. A black matrix in the first display region has small holes, which are filled with light filtering units, and the material of the light filtering units is same as the material of the color filter units of the first color sub-pixels. The area of the first color sub-pixels in the first display region is less than the area of the first color sub-pixels in the second display region.
    Type: Application
    Filed: September 2, 2021
    Publication date: January 19, 2023
    Inventors: Wenxiu ZHU, Hualing YANG, Bo WANG
  • Patent number: 11532273
    Abstract: An array substrate comprising a plurality of pixel units and an external compensation circuit; wherein, for each pixel unit of the plurality of pixel units, the pixel unit comprises a detection switch device, and the pixel unit is connected to a corresponding input end of a multiplexer of the external compensation circuit through the detection switch device; the external compensation circuit is configured: to acquire first data in a case that the detection switch device is opened, the first data comprising noise data caused by a level jump of the multiplexer of the external compensation circuit; to acquire second data in a case that the detection switch device is closed, the second data comprising the noise data and electrical data of the pixel unit; and to obtain the electrical data according to the first data and the second data.
    Type: Grant
    Filed: June 19, 2021
    Date of Patent: December 20, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Hualing Yang, Xinshe Yin
  • Publication number: 20220068198
    Abstract: An array substrate comprising a plurality of pixel units and an external compensation circuit; wherein, for each pixel unit of the plurality of pixel units, the pixel unit comprises a detection switch device, and the pixel unit is connected to a corresponding input end of a multiplexer of the external compensation circuit through the detection switch device; the external compensation circuit is configured: to acquire first data in a case that the detection switch device is opened, the first data comprising noise data caused by a level jump of the multiplexer of the external compensation circuit; to acquire second data in a case that the detection switch device is closed, the second data comprising the noise data and electrical data of the pixel unit; and to obtain the electrical data according to the first data and the second data.
    Type: Application
    Filed: June 19, 2021
    Publication date: March 3, 2022
    Inventors: Hualing YANG, Xinshe YIN
  • Publication number: 20210358342
    Abstract: The present disclosure provides a flexible display screen and a display device. The flexible display screen includes: a substrate; a backing film stacked on a side of the substrate facing away from a light-emitting surface of the flexible display screen; and a pressure sensor stacked on a side of the backing film facing away from the substrate and configured to output a signal related to a force applied on the flexible display screen.
    Type: Application
    Filed: September 20, 2018
    Publication date: November 18, 2021
    Inventors: Lina LIU, Hualing YANG
  • Patent number: 10878780
    Abstract: The present disclosure provides a brightness adjustment method and device for a display screen, a display screen and a display apparatus, belongs to the field of display technology, and can solve the problem of inaccurate brightness adjustment of a display screen. The brightness adjustment method for a display screen includes: controlling a light sensor to detect an intensity of ambient light in a transition interval after the display screen displays a frame of image; and adjusting brightness of the display screen according to the intensity detected by the light sensor.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: December 29, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenxiu Zhu, Hualing Yang
  • Patent number: 10831324
    Abstract: The present disclosure provides a touch panel, including: a flexible substrate including a first region, a second region and a bendable region between the first region and the second region; a first touch sensing layer provided in the first region of the flexible substrate, configured to sense a touch position and connected to a flexible circuit board; a second touch sensing layer provided in the second region of the flexible substrate and configured to sense a touch pressure; and a signal line provided in the bendable region of the flexible substrate and having a first end extending to the first region to be connected to the flexible circuit board and a second end extending to the second region to be connected to the second touch sensing layer.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: November 10, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lina Liu, Meizhu Zheng, Yuanyuan Li, Hualing Yang
  • Patent number: 10748467
    Abstract: A display panel, a display method thereof and a display device are provided. The display panel includes a display area, a non-display area separated from the display area by the special-shape edge, and a driver chip, wherein the display area includes first pixels proximate to the special-shape edge, and second pixels away from the special-shape edge, and the first pixel is divided into a first part in the display area and a second part in the non-display area; and for the first pixel, the driver chip is configured: to determine a target grayscale value G of each first pixel according to G=255*K(1/2.2); and to replace the current grayscale value corresponding to the first pixel in the current grayscale database of the display panel with the target grayscale value G, to form a target grayscale database.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: August 18, 2020
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Hualing Yang, Lina Liu
  • Patent number: 10636364
    Abstract: Embodiments of the disclosure provide a gamma voltage correction method and system for a display module. A display area of the display module includes adjacent first sub-display area and second-sub-display area, which are independently driven by different source drivers respectively. The method comprises performing gamma curve adjustment to the first sub-display area according to a target gamma curve to obtain a first data voltage corresponding to a first grayscale; driving the second sub-display area with the first data voltage so that the second sub-display area emits light; and regulating the first data voltage based on a difference in brightness between the first-sub-display area and the second-sub-display area when driven by the first data voltage respectively to obtain a second data voltage for driving the second sub-display area so as to reduce a brightness difference between the first sub-display area and the second sub-display area.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: April 28, 2020
    Assignees: BOE TECHNOLOGY GROUP CO. LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventors: Hualing Yang, Lina Liu
  • Patent number: 10620735
    Abstract: A force touch module, a manufacturing method thereof, a touch screen, and a display device are disclosed. The force touch module includes a first substrate, a second substrate, an insulation layer, a force sensor, a via hole, and a connection line. The second substrate is located on the first substrate. The insulation layer is located between the first substrate and the second substrate. The force sensor includes a first sensing electrode; the first sensing electrode is located between the insulation layer and the first substrate. The via hole passes through the second substrate and the insulation layer. The connection line is located on a side of the second substrate away from the first substrate, and the connection line is electrically connected with the first sensing electrode through the via hole.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: April 14, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventors: Lina Liu, Hualing Yang
  • Publication number: 20200066229
    Abstract: The present disclosure provides a brightness adjustment method and device for a display screen, a display screen and a display apparatus, belongs to the field of display technology, and can solve the problem of inaccurate brightness adjustment of a display screen. The brightness adjustment method for a display screen includes: controlling a light sensor to detect an intensity of ambient light in a transition interval after the display screen displays a frame of image; and adjusting brightness of the display screen according to the intensity detected by the light sensor.
    Type: Application
    Filed: July 5, 2019
    Publication date: February 27, 2020
    Inventors: Wenxiu ZHU, Hualing YANG
  • Patent number: 10553153
    Abstract: A method, a circuit and a display device for driving an organic light emitting diode, wherein a driving transistor (DTFT) for driving a display element is turned off by jumping one or more of a reference voltage input (Vref), a reset voltage input (Vinit) and a data signal input (Vdata) before beginning to output an EL high level (ELVDD) of a pixel compensation circuit and after beginning to output an EL low level (ELVSS), to overcome the splash screen phenomenon during power-up and direct current-direct current driving failure.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: February 4, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ying Liu, Chenggeng Zhang, Zhaohui Meng, Hongwei Tian, Juanjuan Bai, Meng Shao, Wen Sun, Can Zheng, Hualing Yang
  • Publication number: 20200035141
    Abstract: A display panel, a display method thereof and a display device are provided. The display panel includes a display area, a non-display area separated from the display area by the special-shape edge, and a driver chip, wherein the display area includes first pixels proximate to the special-shape edge, and second pixels away from the special-shape edge, and the first pixel is divided into a first part in the display area and a second part in the non-display area; and for the first pixel, the driver chip is configured: to determine a target grayscale value G of each first pixel according to G=255*K(1/2.2); and to replace the current grayscale value corresponding to the first pixel in the current grayscale database of the display panel with the target grayscale value G, to form a target grayscale database.
    Type: Application
    Filed: June 7, 2019
    Publication date: January 30, 2020
    Inventors: Hualing YANG, Lina LIU
  • Patent number: 10510295
    Abstract: An apparatus for controlling an EL drive voltage for a display panel is disclosed, which includes a current sensing circuit configured to detect an EL drive current signal outputted to the display panel, and convert the EL drive current signal into a first voltage signal, a signal generation circuit configured to generate a pulse signal based on the first voltage signal, a current protection circuit configured to generate a first control signal based on the first voltage signal and a reference voltage, and a signal coupling circuit configured to output, based on the first control signal, the pulse signal or a low level signal as a second control signal to control the EL drive voltage. According to the embodiments of the present disclosure, the EL drive voltage of the display panel can be dynamically controlled, and be reset to normal when it is overhigh.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: December 17, 2019
    Assignees: BOE Technology Group Co., Ltd., Ordos Yuansheng Optoelectronics Co., Ltd.
    Inventors: Chenggeng Zhang, Nan Lu, Yufei Wang, Hualing Yang, Jing Liu
  • Patent number: 10460655
    Abstract: The present disclosure provides a gamma tuning method and a gamma tuning device. The gamma tuning method includes steps of: comparing grayscale binding points of a to-be-debugged module with a standard gamma curve; determining a to-be-tuned grayscale binding point from the grayscale binding points of the to-be-debugged module in accordance with a comparison result between the grayscale binding points of the to-be-debugged module and the standard gamma curve; and tuning a grayscale brightness value of the to-be-tuned grayscale binding point in accordance with a target brightness value of the grayscale binding point on the standard gamma curve.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: October 29, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventors: Chang Zhang, Kwanggyun Jang, Jing Liu, Zhiguang Zhang, Hualing Yang
  • Patent number: 10395597
    Abstract: A method for adjusting a gamma voltage of a curved display panel includes following steps. A first gamma voltage is used as a gamma voltage of a planar display region of a curved display panel in a situation that the planar display region of the curved display panel is horizontally placed and in a white balance state. A curved display region of the curved display panel is divided into a plurality of sub-regions according to a bending degree of the curved display region of the curved display panel. A plurality of inclined angles are determined. A plurality of second gamma voltages are determined in a one-to-one correspondence with the plurality of inclined angles in a situation that the planar display region of the curved display panel is tilted at the plurality of inclined angles and in the white balance state.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: August 27, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventors: Hualing Yang, Lina Liu
  • Publication number: 20190187830
    Abstract: The present disclosure provides a touch panel, including: a flexible substrate including a first region, a second region and a bendable region between the first region and the second region; a first touch sensing layer provided in the first region of the flexible substrate, configured to sense a touch position and connected to a flexible circuit board; a second touch sensing layer provided in the second region of the flexible substrate and configured to sense a touch pressure; and a signal line provided in the bendable region of the flexible substrate and having a first end extending to the first region to be connected to the flexible circuit board and a second end extending to the second region to be connected to the second touch sensing layer.
    Type: Application
    Filed: August 2, 2018
    Publication date: June 20, 2019
    Inventors: Lina LIU, Meizhu ZHENG, Yuanyuan LI, Hualing YANG
  • Publication number: 20190130844
    Abstract: Embodiments of the disclosure provide a gamma voltage correction method and system for a display module. A display area of the display module includes adjacent first sub-display area and second-sub-display area, which are independently driven by different source drivers respectively. The method comprises performing gamma curve adjustment to the first sub-display area according to a target gamma curve to obtain a first data voltage corresponding to a first grayscale; driving the second sub-display area with the first data voltage so that the second sub-display area emits light; and regulating the first data voltage based on a difference in brightness between the first-sub-display area and the second-sub-display area when driven by the first data voltage respectively to obtain a second data voltage for driving the second sub-display area so as to reduce a brightness difference between the first sub-display area and the second sub-display area.
    Type: Application
    Filed: September 28, 2018
    Publication date: May 2, 2019
    Inventors: Hualing YANG, Lina LIU