Patents by Inventor Dongni LIU

Dongni 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).

  • Publication number: 20220238066
    Abstract: The present application discloses a driving circuit and a display panel. The driving circuit includes a driving current generation circuit and a light emitting time control circuit. The driving current generation circuit is connected to a first reference voltage terminal, a data voltage terminal and the light emitting time control circuit, and is configured to generate a driving current under the control of the first reference voltage terminal and the data voltage terminal, and transmit the driving current to the light emitting time control circuit. The light emitting time control circuit is connected to the driving current generation circuit, a time control signal terminal, a reference signal terminal and a light emitting element, and is configured to control a duration of transmitting the driving current to the light emitting element under the control of the time control signal terminal and the reference signal terminal.
    Type: Application
    Filed: September 30, 2021
    Publication date: July 28, 2022
    Inventors: Liang CHEN, Dongni LIU, Haoliang ZHENG, Li XIAO, Seungwoo HAN, Jiao ZHAO, Hao CHEN, Minghua XUAN, Qi QI
  • Publication number: 20220238065
    Abstract: The present disclosure provides a pixel driving circuit and a display panel. The pixel driving circuit includes a driving module and a grayscale adjustment module. The driving module is configured to generate a first driving current corresponding to a first grayscale range under the control of a potential at a gate voltage end and a first power source voltage, and transmit the first driving current to a light-emitting element. The grayscale adjustment module is configured to adjust the driving module under the control of the first power source voltage and a first data voltage, so that the driving module generates a second driving current corresponding to a second grayscale range under the control of the potential at the gate voltage end and the first power source voltage, and transmits the second driving current to the light-emitting element.
    Type: Application
    Filed: September 15, 2021
    Publication date: July 28, 2022
    Inventors: Dongni LIU, Minghua XUAN, Qi QI, Jing LIU
  • Patent number: 11398184
    Abstract: The present application provides a pixel driving circuit, a display apparatus and a method for driving a pixel driving circuit. The pixel driving circuit includes a driving sub-circuit, a duration control sub-circuit and a data writing sub-circuit. The driving sub-circuit is electrically coupled to the duration control sub-circuit and the data writing sub-circuit, respectively, the data writing sub-circuit is configured to transmit a data signal to the driving sub-circuit, the duration control sub-circuit is configured to control a turned-on duration of the driving sub-circuit, and the driving sub-circuit is configured to control a current of a to-be-driven element according to the data signal during the turned-on duration. The display apparatus includes the pixel driving circuit provided by the present application. The method is applied to the pixel driving circuit provided by the present application.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: July 26, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongni Liu, Minghua Xuan
  • Publication number: 20220231105
    Abstract: An array substrate is configured to carry a plurality of light emitting units with different light emitting colors. The array substrate includes a plurality of pixel driving circuits, a first voltage input line and a second voltage input line. The plurality of pixel driving circuits include at least one first driving circuit and at least one second driving circuit. The first voltage input line is coupled to the at least one first driving circuit, and is configured to transmit a first voltage to the at least one first driving circuit. The second voltage input line is coupled to the at least one second driving circuit, and is configured to transmit a second voltage to the at least one second driving circuit. The first voltage is different from the second voltage.
    Type: Application
    Filed: February 24, 2021
    Publication date: July 21, 2022
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongni LIU, Minghua XUAN, Haoliang ZHENG, Jiao ZHAO
  • Patent number: 11393388
    Abstract: A shift register circuit and a method for driving the same, a gate driving circuit and a display device are provided. The shift register circuit includes an input terminal, a first control signal terminal, a second control signal terminal, and an output terminal, and further includes: an input module configured to receive an input signal input by the input terminal under the control of a first control signal input by the first control signal terminal and a second control signal input by the second control signal terminal; a storage module configured to store the input signal; a transmission module configured to transmit the input signal stored by the storage module to a preset node; and an output module configured to output a high level signal or a low level signal through the output terminal under the control of the input signal at the preset node.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: July 19, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Han Yue, Minghua Xuan, Can Zhang, Can Wang, Dongni Liu, Xiaochuan Chen
  • Patent number: 11386846
    Abstract: A pixel driving circuit includes a data writing sub-circuit, a driving sub-circuit, and a control sub-circuit. The data writing sub-circuit is configured to: in response to a first scanning signal and a third scanning signal, write a first data signal into the driving sub-circuit; and in response to a second scanning signal and the third scanning signal, write a second data signal into the driving sub-circuit. The control sub-circuit is configured to, in response to an enable signal, connect a driving transistor to a first power supply voltage signal terminal and an element to be driven. The driving sub-circuit is configured to: according to the first data signal and a first power supply voltage signal, output a driving signal; and according to the second data signal and the first power supply voltage signal, control an operating state of the element to be driven.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: July 12, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongni Liu, Minghua Xuan, Xiaochuan Chen, Xue Dong, Haoliang Zheng, Han Yue, Ning Cong
  • Publication number: 20220215793
    Abstract: The present disclosure provides a display apparatus, a pixel circuit and a method of driving a pixel circuit. In one or more embodiments, the pixel circuit includes a driving transistor, a data signal module and a bias signal module. A first electrode of the driving transistor is connected with a first power signal terminal, a second electrode of the driving transistor is connected with a first terminal of a light emitting element, and the driving transistor includes a first control electrode and a second control electrode. The data signal module is connected with the driving transistor, a data writing signal terminal and a data signal terminal. The bias signal module is connected with the driving transistor, a bias writing signal terminal and a bias signal terminal, and is configured to adjust a threshold voltage of the driving transistor under control of the bias writing signal terminal and the bias signal terminal.
    Type: Application
    Filed: October 25, 2021
    Publication date: July 7, 2022
    Inventors: Seungwoo HAN, Haoliang ZHENG, Dongni LIU, Li XIAO, Liang CHEN, Hao CHEN, Jiao ZHAO, Jin YANG, Minghua XUAN
  • Patent number: 11373584
    Abstract: An array substrate has a display area, and the array substrate includes at least one pixel group and at least one pixel circuit group. The at least one pixel group is disposed in the display area, and each pixel group includes a plurality of pixels arranged in an array. Each pixel circuit group is disposed between two adjacent rows of pixels or two adjacent columns of pixels in a corresponding pixel group.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: June 28, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiao Zhao, Li Xiao, Minghua Xuan, Haoliang Zheng, Dongni Liu, Jing Liu, Qi Qi, Zhenyu Zhang, Liang Chen, Hao Chen, Lijun Yuan
  • Patent number: 11374032
    Abstract: There is provided an array substrate including a plurality of pixel regions arranged in rows and columns. The plurality of pixel regions include a corresponding pixel electrode array and a corresponding pixel circuit associated with the corresponding pixel electrode array. Each of the pixel electrode arrays is arranged in rows and columns, and each pixel electrode array includes a plurality of pixel electrodes arranged in an array. The array substrate further includes a plurality of sets of gate lines extending in a row direction and a plurality of sets of data lines extending in a column direction. The plurality of sets of gate lines and rows of the pixel electrode arrays are alternately arranged with each other in the column direction. The plurality of sets of data lines and columns of the pixel regions are alternately arranged with each other in the row direction.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: June 28, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ming Yang, Minghua Xuan, Can Zhang, Can Wang, Han Yue, Ning Cong, Jiayao Liu, Wenqing Zhao, Li Xiao, Dongni Liu, Lei Wang, Liang Chen, Xiaochuan Chen, Shengji Yang, Pengcheng Lu
  • Patent number: 11355061
    Abstract: The present disclosure relates to a pixel circuit, a driving method therefor, and a display apparatus. The pixel circuit includes an input sub-circuit, a light emission control sub-circuit and an organic light-emitting transistor. The input sub-circuit is coupled to a gate line, a data line and the light emission control sub-circuit and writes a data signal supplied via the data line into the light emission control sub-circuit under control of a gate scan signal supplied via the gate line. The light emission control sub-circuit is coupled to a control electrode of the organic light-emitting transistor and controls a control electrode voltage of the organic light-emitting transistor according to a written data signal to drive the organic light-emitting transistor to emit light. With the pixel circuit according to embodiments of the present disclosure, active driving of an organic light-emitting transistor is achieved when it is applied in a display apparatus.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: June 7, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Liang Chen, Lei Wang, Li Xiao, Dongni Liu, Detao Zhao, Ning Cong, Minghua Xuan, Shengji Yang, Xiaochuan Chen
  • Patent number: 11347360
    Abstract: A touch display substrate, including touch electrodes, touch lines and sub-pixels, each sub-pixel includes a storage capacitor, a driving transistor, a switching element and a light emitting element, a first electrode and a second electrode of the storage capacitor are coupled to a gate electrode and a first electrode of the driving transistor, respectively, and a second electrode of the driving transistor, the switching element and the light emitting element are sequentially coupled in series, each touch electrode is coupled to one corresponding touch line through a via hole in an insulating layer between said each touch electrode and the corresponding touch line, and each touch electrode is formed by the second electrode of the storage capacitor in at least one sub-pixel, during a touch stage, the switching element decouples electrical coupling between the second electrode of the driving transistor and the light emitting element.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: May 31, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Detao Zhao, Ming Yang, Han Yue, Dongni Liu, Li Xiao, Lei Wang, Minghua Xuan, Xiaochuan Chen
  • Patent number: 11348523
    Abstract: A display substrate, includes: a plurality of pixel driving circuits; a plurality of groups of light-emitting driving signal lines, wherein each driving signal line group of the plurality of groups of light-emitting driving signal lines includes a plurality of light-emitting driving signal lines; and a plurality of pixel circuit multiplexing units coupled to the plurality of pixel driving circuits, respectively, wherein each pixel circuit multiplexing unit includes N light-emitting units coupled to one of the plurality of pixel driving circuits and a group of light-emitting driving signal line.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: May 31, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Liang Chen, Lei Wang, Li Xiao, Minghua Xuan, Dongni Liu, Hao Chen
  • Patent number: 11348525
    Abstract: A pixel circuit, a display panel, and a display device comprising the pixel circuit. The pixel circuit comprises a light emitting element and a driving circuit. The driving circuit comprises a light emission driving circuit for driving the light emitting element to emit light, and a light sensing driving circuit for controlling the light emitting element to convert external light incident on the light emitting element into an electrical signal. The pixel circuit integrates the light emission driving circuit with the light sensing driving circuit and can achieve the light sensing function for the screen of the display device, which makes it possible to not reserve an area dedicated to a camera on the surface of the display device.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: May 31, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Liang Chen, Lei Wang, Li Xiao, Dongni Liu, Xiaochuan Chen, Minghua Xuan, Ning Cong, Detao Zhao
  • Patent number: 11341920
    Abstract: A pixel circuit, a driving method thereof and electronic device, relates to the technical field of display configured for. The pixel circuit comprises a driving sub-circuit comprising a control terminal, a first terminal and a second terminal, the driving sub-circuit being configured to control a driving signal flowing through the first terminal and the second terminal according to a signal of the control terminal; a voltage division control sub-circuit configured to conduct voltage division on an input data signal in response to a first scanning signal to obtain a voltage division signal, and write the voltage division signal to the first terminal of the driving sub-circuit; and a compensation sub-circuit coupled to the control terminal of the driving sub-circuit and the second terminal of the driving sub-circuit, and configured to write voltage division signal passing through driving sub-circuit to control terminal of driving sub-circuit in response to first scanning signal.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: May 24, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Dongni Liu, Haoliang Zheng, Minghua Xuan
  • Publication number: 20220157247
    Abstract: A pixel driving circuit includes a signal control sub-circuit and a time control sub-circuit. The signal control sub-circuit includes a first driving sub-circuit connected to a first node. The signal control sub-circuit is configured to: write at least a first data signal into the first node, and enable the first driving sub-circuit to output a driving signal according to the first data signal and a first power supply voltage signal. The time control sub-circuit includes a second driving sub-circuit including a first transistor connected to a second node and the signal control sub-circuit. The time control sub-circuit is configured to: transmit a second power supply voltage signal and a third power supply voltage signal to the second node in different periods, so as to control a turn-on time of the first transistor and transmit the driving signal to an element to be driven when the first transistor is turned on.
    Type: Application
    Filed: October 19, 2020
    Publication date: May 19, 2022
    Inventors: Han YUE, Dongni LIU
  • Patent number: 11335242
    Abstract: The present disclosure provides a display substrate, including: a substrate; a plurality of pixel units on the substrate, each of the pixel units having a light-emitting device therein; a power supply electrode configured to supply a power supply voltage to the light-emitting device, wherein the power supply electrode includes a first electrode layer and a second electrode layer, the second electrode layer has a mesh-shaped structure and is coupled to the first electrode layer through a via hole, and the first electrode layer includes a plurality of first electrode parts spaced apart from each other and each having a block shape, each of the first electrode parts being electrically coupled to a plurality of light-emitting devices for supplying the power supply voltage to the plurality of light-emitting devices.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: May 17, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongni Liu, Minghua Xuan, Liang Chen, Detao Zhao, Li Xiao, Zheng Fang
  • Patent number: 11335224
    Abstract: A pixel circuit, a driving method thereof, and a display device are provided. The pixel circuit includes: a light-emitting assembly including a plurality of light-emitting elements; a driving sub-circuit electrically coupled to the light-emitting assembly and configured to generate driving current for driving the light-emitting assembly; and a repair sub-circuit electrically coupled to the light-emitting assembly and configured to: receive a repair scanning signal (Gate_R, Gate_Ri) and a repair data signal (Data_R, Data_Ri), and provide the driving current to at least one light-emitting element capable of emitting light normally among the plurality of light-emitting elements under the control of the repair scanning signal (Gate_R, Gate_Ri) and the repair data signal (Data_R, Data_Ri).
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: May 17, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongni Liu, Minghua Xuan, Han Yue, Li Xiao, Liang Chen, Hao Chen
  • Patent number: 11335243
    Abstract: Disclosed are a display panel and a display device. The display panel includes M rows and N columns of pixel units. The display panel is divided into R regions along a column direction, and an i-th region includes: (1+M(i?1)/R)-th row to a (Mi/R)-th row of pixel units. The display panel further includes M shift registers, M light emitting drivers, R light emitting control scan staring signal terminals, R scan start signal terminals for controlling time length and R scan start signal terminals for controlling current. An i-th row of pixel units is connected with an i-th shift register and an i-th light emitting driver, a light emitting driver connected to a first row of pixel units in the i-th region is connected with an i-th scan start signal terminal for controlling light emission.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: May 17, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Haoliang Zheng, Minghua Xuan, Dongni Liu, Ning Cong, Zhenyu Zhang, Lijun Yuan, Yi Ouyang, Guangliang Shang
  • Patent number: 11320932
    Abstract: A touch display panel and a method for manufacturing the same are provided. The method includes: forming touch lines, an insulating layer and first electrodes above a substrate, the insulating layer covers the touch lines and is provided with at least one through-hole, the first electrodes are at a side of the insulating layer distal from the touch lines; forming barrier walls in each through-hole, and at a predetermined position in an interval between the first electrodes; forming a light emitting layer and a second electrode layer at a side of the light emitting layer distal from the substrate; removing the barrier walls, portions of the light emitting layer and the second electrode layer above the barrier walls, remaining portions of the second electrode layer form touch electrodes; forming an electrical conductive structure in each through-hole for coupling one touch line to one touch electrode.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: May 3, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Detao Zhao, Pengcheng Lu, Liang Chen, Ning Cong, Ming Yang, Dongni Liu, Li Xiao, Shengji Yang, Lei Wang, Minghua Xuan, Xiaochuan Chen
  • Patent number: 11323681
    Abstract: The present disclosure provides a 3D display device and a working method of the same, the 3D display device includes a display panel, a lens unit, an acquiring component and an adjusting component, the acquiring component is configured to acquire current positions of eyes of a viewer, and the adjusting component is configured to adjust a signal for driving the display panel according to the current positions so that display information of the display panel received by the eyes of the viewer at the current positions is the same as display information of the display panel received by the eyes of the viewer at preset positions.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: May 3, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pengcheng Lu, Xiaochuan Chen, Shengji Yang, Lei Wang, Wenqing Zhao, Dongni Liu, Jie Fu, Han Yue, Li Xiao, Jian Gao, Haisheng Wang, Changfeng Li