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).

  • Patent number: 11798473
    Abstract: The present disclosure provides a pixel driving circuit and a display panel. The pixel driving circuit includes: a data writing sub-circuit configured to transmit a data voltage signal to a first terminal of a driving sub-circuit in response to a first scanning signal; a threshold compensation sub-circuit configured to compensate for a threshold voltage of the driving sub-circuit in response to a second scanning signal; a storage sub-circuit configured to store the data voltage signal; the driving sub-circuit configured to provide a driving current for a light emitting device to be driven according to voltages of a first terminal and a control terminal of the driving sub-circuit; and a voltage maintaining sub-circuit configured to maintain the voltage of the control terminal of the driving sub-circuit when the voltage of the first terminal of the driving sub-circuit jumps.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: October 24, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongni Liu, Minghua Xuan, Haoliang Zheng, Li Xiao, Liang Chen, Zhenyu Zhang, Jiao Zhao, Hao Chen
  • Patent number: 11796877
    Abstract: The present disclosure discloses a display panel and a display device. The display panel includes: a base substrate, including a plurality of substrate via holes located in a display area of the display panel; and a plurality of driving signal lines and a plurality of bonding terminals, respectively located on different sides of the base substrate. At least one of the plurality of driving signal lines is electrically connected to at least one of the plurality of bonding terminals through the substrate via hole(s).
    Type: Grant
    Filed: November 10, 2022
    Date of Patent: October 24, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Liang Chen, Minghua Xuan, Dongni Liu, Haoliang Zheng, Li Xiao, Zhenyu Zhang, Hao Chen, Ke Wang
  • Patent number: 11763743
    Abstract: A pixel circuit includes a current control sub-circuit, a combined light emitting sub-circuit, and a first light emitting element to an Nth light emitting element, N being a natural number greater than 1. The current control sub-circuit is configured to receive a display data signal and a light emitting control signal, control whether to generate a driving current according to the light emitting control signal, and control a current intensity of the generated driving current according to the display data signal. The combined light emitting sub-circuit is configured to receive the driving current and a first light emitting data signal to an Nth light emitting data signal and drive one or more of the first light emitting element to the Nth light emitting element to emit light according to the first light emitting data signal to the Nth light emitting data signal.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: September 19, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Liang Chen, Dongni Liu, Li Xiao, Minghua Xuan, Haoliang Zheng, Zhenyu Zhang, Hao Chen, Jiao Zhao, Qi Qi
  • Patent number: 11741883
    Abstract: The present disclosure proposes a pixel circuit, a control method thereof and a display panel. The pixel circuit includes a first light-emitting element, a pixel drive circuit connected with the first light-emitting element, a repair branch circuit connected with a node between the pixel drive circuit and the first light-emitting element, wherein the repair branch circuit includes a switch circuit and a second light-emitting element connected in series, and the switch circuit controls a connection or disconnection of the second light-emitting element with the pixel drive circuit; a control circuit connected with a control terminal of the switch circuit, a first data terminal and a first control terminal, the control circuit is configured to write a signal of the first data terminal to the control terminal of the switch circuit under a control of the first control terminal to control on or off of the switch circuit.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: August 29, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Dongni Liu, Minghua Xuan, Li Xiao, Liang Chen, Hao Chen
  • Patent number: 11735115
    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 to 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: June 13, 2022
    Date of Patent: August 22, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongni Liu, Minghua Xuan, Xiaochuan Chen, Xue Dong, Haoliang Zheng, Han Yue, Ning Cong
  • Publication number: 20230260453
    Abstract: An array substrate includes M pixel lines and N pixel circuit groups. The M pixel lines are disposed in a display area and arranged in a first direction. The N pixel circuit groups are arranged in the first direction. M is an integer greater than or equal to 2, and N is a positive integer less than M. A pixel circuit group of the N pixel circuit groups is electrically connected to adjacent two pixel lines of the M pixel lines, and the first direction is one of a row direction and a column direction.
    Type: Application
    Filed: April 26, 2023
    Publication date: August 17, 2023
    Inventors: Jiao ZHAO, Li XIAO, Minghua XUAN, Haoliang ZHENG, Dongni LIU, Jing LIU, Qi QI, Zhenyu ZHANG, Liang CHEN, Hao CHEN, Lijun YUAN
  • Publication number: 20230260461
    Abstract: A pixel circuit includes a driving circuit, a first control circuit and a second control circuit. The driving circuit is configured to receive a data signal in response to a scan signal, and generate, in response to a first enable signal, a driving signal according to a first voltage and the data signal. The first control circuit is configured to: receive a first input signal in response to a first control signal, and transmit a third input signal in response to the first input signal; and receive a second input signal in response to a second control signal, and transmit a second enable signal in response to the second input signal. The second control circuit is configured to transmit the driving signal to an element to be driven in response to one of the third input signal and the second enable signal.
    Type: Application
    Filed: April 27, 2023
    Publication date: August 17, 2023
    Inventors: Li XIAO, Haoliang ZHENG, Hao CHEN, Minghua XUAN, Dongni LIU, Seungwoo HAN, Liang CHEN, Jiao ZHAO, Xue DONG
  • Patent number: 11727841
    Abstract: The present disclosure provides a driving backplane, a display panel and a display device. The driving backplane comprises: a base substrate having a plurality of first conductive vias; a pixel circuit layer disposed on the base substrate and comprising a plurality of pixel circuits and a plurality of signal lines; a conductive portion, at least part of which is disposed in one first conductive via; a conductive pattern layer disposed on the base substrate and comprising a plurality of first conductive patterns; and a shielding layer disposed between the pixel circuit layer and the conductive pattern layer and having a plurality of hollow areas; wherein each of the plurality of signal lines is coupled to one first conductive pattern through at least one of the conductive portions.
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: August 15, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Minghua Xuan, Haoliang Zheng, Liang Chen, Qi Qi, Jing Liu, Dongni Liu
  • Patent number: 11721287
    Abstract: Provided are a photoelectric detection circuit and a driving method thereof, a display apparatus and a manufacturing method thereof. The photoelectric detection circuit includes: a first reset sub-circuit, a second reset sub-circuit, a first storage sub-circuit, a data read sub-circuit and a photosensitive device. A first terminal of the data read sub-circuit, a first terminal of the first storage sub-circuit, a first electrode of the photosensitive device and a first terminal of the first reset sub-circuit are connected to a first node. A second electrode of the photosensitive device is connected to a common voltage line. The data read sub-circuit is configured to transmit a voltage of the first node to a data read line in response to a signal of a scan line. The first reset sub-circuit is configured to reset the voltage of the first node.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: August 8, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhenyu Zhang, Li Xiao, Dongni Liu, Liang Chen, Hao Chen, Haoliang Zheng, Minghua Xuan, Jiao Zhao
  • Patent number: 11688336
    Abstract: An array substrate includes pixel group(s) and pixel circuit group(s), each pixel group includes pixels, and each pixel includes sub-pixel(s). At least two pixel groups are arranged in a row direction; in a column direction, a length of a pixel group is greater than a length of a pixel circuit group electrically connected thereto; and orthographic projections of a sub-pixel and a pixel circuit group electrically connected to a pixel group to which the sub-pixel belongs on a plane does not overlap. Or, the at least two pixel groups are arranged in the column direction; in the row direction, a length of a pixel group is greater than a length of a pixel circuit group electrically connected thereto; and orthographic projections of a sub-pixel and a pixel circuit group electrically connected to a pixel group to which the sub-pixel belongs on another plane does not overlap.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: June 27, 2023
    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: 11688347
    Abstract: A pixel circuit includes a driving circuit, a first control circuit and a second control circuit. The driving circuit is configured to receive a data signal in response to a scan signal, and generate, in response to a first enable signal, a driving signal according to a first voltage and the data signal. The first control circuit is configured to: receive a first input signal in response to a first control signal, and transmit a third input signal in response to the first input signal; and receive a second input signal in response to a second control signal, and transmit a second enable signal in response to the second input signal. The second control circuit is configured to transmit the driving signal to an element to be driven in response to one of the third input signal and the second enable signal.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: June 27, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Li Xiao, Haoliang Zheng, Hao Chen, Minghua Xuan, Dongni Liu, Seungwoo Han, Liang Chen, Jiao Zhao, Xue Dong
  • Publication number: 20230178016
    Abstract: An array substrate has a display area and a non-display area including a first bonding region. The array substrate includes: a plurality of pixel columns disposed in the display area, each of the plurality of pixel columns including a plurality of light-emitting units that are arranged in a second direction, the second direction being perpendicular to a direction in which an edge of the display area proximate to the first bonding region extends; and at least three first power supply input terminals disposed in the first bonding region, each first power supply input terminal being connected to at least one pixel column of the plurality of pixel columns, so as to provide a first power supply signal to the at least one pixel column.
    Type: Application
    Filed: January 15, 2021
    Publication date: June 8, 2023
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongni LIU, Qi Ql, Feng QU, Minghua XUAN, Haoliang ZHENG, Jiao ZHAO
  • Patent number: 11670643
    Abstract: A driving backplane, a display panel and a display device are disclosed. The driving backplane includes: a base substrate; a plurality of pixel driving circuits located on the base substrate; an electrode located on a side of each of the pixel driving circuits facing away from the base substrate and coupled with the pixel driving circuits; and a potential wire located between the electrode and the base substrate and coupled with the pixel driving circuits. Every at least two pixel driving circuits are coupled with a same signal line through a multiplexing controller, an orthographic projection of the controller on the base substrate completely falls into a range of a corresponding micro light emitting diode bonding region, and an orthographic projection of a control wire coupled with the controller on the base substrate completely falls into a range of an orthographic projection of the potential wire on the base substrate.
    Type: Grant
    Filed: October 13, 2021
    Date of Patent: June 6, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongni Liu, Liang Chen, Minghua Xuan, Haoliang Zheng, Qi Qi, Jing Liu
  • Patent number: 11663961
    Abstract: A pixel circuit, a pixel driving method and a display device are provided. The pixel circuit includes a driving circuit, a first light-emitting control circuit and a light-emitting circuit; the light-emitting circuit includes a path control sub-circuit, a first light-emitting sub-circuit, a first light-emitting element, a second light-emitting sub-circuit and a second light-emitting element; a path control sub-circuit controls to write a second data voltage on a second data line into the control terminal, and maintains a potential of the control terminal; a first light-emitting sub-circuit connects the writing node to or disconnects the writing node from the first light-emitting element under the control of the potential of the control terminal; the second light-emitting sub-circuit electrically connects the writing node to or electrically disconnects the writing node from the second light-emitting element under the control of the potential of the control terminal and the second light-emitting control signal.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: May 30, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Dongni Liu
  • Patent number: 11637166
    Abstract: The present disclosure relates to a method of manufacturing an array substrate. The method of manufacturing an array substrate may include forming a main via hole in a substrate, filling a first conductive material in the main via hole, and forming a pixel circuit layer on a first surface of the substrate. The pixel circuit layer may include a first via hole. An orthographic projection of the first via hole on the substrate may at least partially overlap the corresponding main via hole.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: April 25, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yingwei Liu, Qi Yao, Ke Wang, Zhanfeng Cao, Zhiwei Liang, Muxin Di, Guangcai Yuan, Xue Jiang, Dongni Liu
  • Publication number: 20230113488
    Abstract: The present disclosure provides a display substrate and a display device, and belongs to the field of display technology. The display substrate of the present disclosure includes: a base substrate; and a plurality of pixel units arranged in an array, a plurality of signal lines and signal supply modules on the base substrate; wherein the signal supply module includes: a signal supply circuit and a redundant signal supply circuit; each of the signal supply modules is electrically coupled to at least one of the plurality of pixel units through at least one of the plurality of signal lines.
    Type: Application
    Filed: November 27, 2019
    Publication date: April 13, 2023
    Inventors: Jiao ZHAO, Li XIAO, Minghua XUAN, Haoliang ZHENG, Dongni LIU, Jing LIU, Qi QI
  • Patent number: 11616043
    Abstract: A chip transfer method including: disposing a target substrate in a closed cavity, the target substrate including a first alignment bonding structure and a second alignment bonding structure; applying a charge of a first polarity to the first alignment bonding structure of the target substrate; applying a charge of a second polarity to a first chip bonding structure of a chip; injecting an insulating fluid into the closed cavity to suspend the chip in the insulating fluid within the closed cavity; and applying a bonding force to the chip.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: March 28, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Liang Chen, Lei Wang, Minghua Xuan, Li Xiao, Dongni Liu, Detao Zhao, Hao Chen
  • Patent number: 11610943
    Abstract: The present application relates to the field of display technology, and in particular, to a display panel, method for manufacturing a display panel and display device. The display panel includes: a base substrate; a pixel layer, provided on the base substrate and comprising a plurality of pixel islands; and a microlens layer, provided on a surface of the pixel layer facing away from the base substrate. Each of pixel islands includes a plurality of sub-pixels that emit light of a same color and are seamlessly coupled to each other, and the light emitted by the plurality of sub-pixels in each of the pixel islands is refracted by the microlens layer to be dispersed to different pixel areas.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: March 21, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongni Liu, Minghua Xuan, Li Xiao
  • Patent number: 11610549
    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: Grant
    Filed: October 19, 2020
    Date of Patent: March 21, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Han Yue, Dongni Liu
  • Patent number: 11605348
    Abstract: A pixel circuit includes an input circuit and a time control circuit. The input circuit includes a driving transistor, and the input circuit is configured to write a data signal into a gate of the driving transistor in response to a first gate signal, so that the driving transistor outputs a driving signal for driving an element to be driven to emit light according to a gate voltage and a source voltage thereof. The time control circuit is coupled to the input circuit and the element to be driven, and is configured to control the input circuit to transmit the driving signal to the element to be driven for a first duration, and control the input circuit to transmit the driving signal to the element to be driven for a second duration. The second duration is shorter than the first duration, and includes a plurality of phases spaced apart.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: March 14, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Minghua Xuan, Dongni Liu, Haoliang Zheng, Li Xiao, Xue Dong