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: 20240127756
    Abstract: A pixel driving circuit includes a driving signal control sub-circuit and a driving duration control sub-circuit. The driving signal control sub-circuit is configured to provide a driving signal to the driving duration control sub-circuit under control of both a first scanning signal terminal and a enable signal terminal. The driving signal is related to a first data signal received at a first data signal terminal and a first voltage signal received at a first voltage signal terminal. The driving duration control sub-circuit is configured to, under control of the second scanning signal terminal and the enable signal terminal, transmit the driving signal to the element to be driven based on a second data signal with a gradually varying working potential received at the second data signal terminal. The first data signal is different from the second data signal.
    Type: Application
    Filed: December 20, 2023
    Publication date: April 18, 2024
    Inventors: Minghua Xuan, Xiaochuan Chen, Dongni Liu
  • Patent number: 11955075
    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: Grant
    Filed: January 15, 2021
    Date of Patent: April 9, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongni Liu, Qi Ql, Feng Qu, Minghua Xuan, Haoliang Zheng, Jiao Zhao
  • Publication number: 20240105736
    Abstract: An array substrate includes a base substrate including a first surface and a second surface, scanning signal lines disposed on the first surface, at least two groups of shift register circuits disposed in a display area of the first surface, and at least one fan-out structure disposed on the second surface. Each scanning signal line extends along a first direction. Each group of shift register circuits includes a plurality of shift register circuits along a second direction. Each shift register circuit is coupled to a scanning signal line. The fan-out structure is coupled to the shift register circuits. At least one group of shift register circuits is disposed in a non-edge region of the display area. The shift register circuit disposed in the non-edge region is configured to transmit a scanning signal to the scanning signal line at both sides of the shift register circuit along the first direction.
    Type: Application
    Filed: November 30, 2023
    Publication date: March 28, 2024
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongni LIU, Minghua XUAN, Feng QU, Qi QI
  • Publication number: 20240096288
    Abstract: A display substrate a driving method therefor, and a display apparatus. The display substrate comprises: M rows and N columns of sub-pixels, N data signal lines and a data reset circuit, wherein at least one sub-pixel comprises a pixel circuit; an ith data signal line is connected to pixel circuits in an ith column, where M?1, N?1, and 1?i?N; and the data reset circuit is electrically connected to a data reset control end, a data initial signal end and the N data signal lines, and is configured to provide a signal of the data initial signal end to the N data signal lines under the control of the data reset control end.
    Type: Application
    Filed: December 20, 2021
    Publication date: March 21, 2024
    Inventors: Haoliang ZHENG, Yan QU, Dongni LIU, Li XIAO, Jiao ZHAO, Xiaorong CUI, Seungwoo HAN, Minghua XUAN
  • Patent number: 11901486
    Abstract: Provided is a method for transferring a chip, including: disposing a target substrate in a sealed chamber; applying charges of different polarities to a first alignment bonding structure of the target substrate and a first chip bonding structure of the chip, and injecting an insulation fluid flowing in a first direction into the sealed chamber, so that the first chip bonding structure is aligned with the first alignment bonding structure; applying charges of different polarities to a second alignment bonding structure of the target substrate and a second chip bonding structure of the chip, and changing the flowing direction of the insulation fluid to a second direction, so that the second chip bonding structure is aligned with the second alignment bonding structure; and applying a bonding force to the chip, so that the chip bonding structures is bonded to the alignment bonding structures.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: February 13, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Liang Chen, Lei Wang, Minghua Xuan, Dongni Liu, Li Xiao, Detao Zhao, Hao Chen
  • Patent number: 11893939
    Abstract: A pixel driving circuit includes a driving signal control sub-circuit and a driving duration control sub-circuit. The driving signal control sub-circuit is configured to provide a driving signal to the driving duration control sub-circuit under control of a first scanning signal terminal and a enable signal terminal. The driving signal is related to a first data signal received at a first data signal terminal and a first voltage signal received at a first voltage signal terminal. The driving duration control sub-circuit is configured to transmit the driving signal to the element to be driven under control of a second scanning signal terminal and a enable signal terminal. A duration for which the driving signal is transmitted to the element to be driven is related to a second data signal received at a second data signal terminal.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: February 6, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Minghua Xuan, Xiaochuan Chen, Dongni Liu
  • Patent number: 11875734
    Abstract: Disclosed are a pixel circuit and a drive method for the same, and a display panel and a drive method for the same. The pixel circuit is configured to drive a light-emitting element to emit light, including: a current control sub-circuit and a time-length control sub-circuit. The current control sub-circuit is electrically connected to a current data terminal, a scanning signal terminal, a reset signal terminal, an initial signal terminal, a light-emitting signal terminal, a first power terminal, a first node, and a second node, respectively. The time-length control sub-circuit is electrically connected to a first control terminal, a second control terminal, a time-length data terminal, a ground terminal, a light-emitting signal terminal, a high-frequency input terminal, and the first node, respectively.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: January 16, 2024
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Li Xiao, Haoliang Zheng, Minghua Xuan, Seungwoo Han, Hao Chen, Dongni Liu, Jiao Zhao, Liang Chen, Qi Qi
  • Patent number: 11876100
    Abstract: An array substrate includes a base substrate including a first surface, a plurality of scanning signal lines disposed on the first surface, and at least two groups of shift register circuits disposed in a display area of the first surface. The first surface has the display area. Each scanning signal line extends along a first direction. Each group of shift register circuits includes a plurality of shift register circuits arranged along a second direction. Each shift register circuit is coupled to a scanning signal line. The first direction and the second direction intersect. At least one group of shift register circuits is disposed in a non-edge region of the display area. The shift register circuit disposed in the non-edge region of the display area is configured to transmit a scanning signal to the scanning signal line at both sides of the shift register circuit along the first direction.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: January 16, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongni Liu, Minghua Xuan, Feng Qu, Qi Qi
  • Publication number: 20240005854
    Abstract: A pixel driving circuit includes a driving control sub-circuit and a time control sub-circuit. The driving control sub-circuit includes a first driving sub-circuit. The first driving sub-circuit is configured to output a driving signal to drive an element to be driven to operate. The time control sub-circuit includes a second driving sub-circuit. The second driving sub-circuit is configured to output a third voltage signal to make the first driving sub-circuit stop outputting the driving signal, so as to control operating duration of the element to be driven.
    Type: Application
    Filed: September 19, 2023
    Publication date: January 4, 2024
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Minghua XUAN, Dongni LIU, Qi QI, Jing LIU, Han YUE
  • Publication number: 20230418122
    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: Application
    Filed: September 12, 2023
    Publication date: December 28, 2023
    Inventors: Liang Chen, Minghua Xuan, Dongni Liu, Haoliang Zheng, Li Xiao, Zhenyu Zhang, Hao Chen, Ke Wang
  • Patent number: 11854493
    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: Grant
    Filed: November 27, 2019
    Date of Patent: December 26, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiao Zhao, Li Xiao, Minghua Xuan, Haoliang Zheng, Dongni Liu, Jing Liu, Qi Qi
  • Patent number: 11845126
    Abstract: The present disclosure relates to a metal additive manufacturing extrusion mechanism for monitoring and improving mechanical properties in situ, and belongs to the technical field of metal additive manufacturing. The mechanism comprises a wire conveying unit, a composite cavity unit, a high-temperature loading unit, a temperature detecting unit, a pressure loading unit, a pressure detecting unit and an in-situ monitoring unit. Multi-stage high-temperature loading is achieved through silicon nitride heater components distributed in the piston, the outer wall of the cavity and the nozzle, and meanwhile service temperature detection is achieved through thermocouple components. Multi-stage pressurization is achieved through continuous pressure loading of the wire conveying mechanism and high-frequency pressure loading of the piston mechanism and the four-rod mechanism, and then service pressure detection is achieved through strain gauge components on the top of the piston and the inner wall of the cavity.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: December 19, 2023
    Assignee: JILIN UNIVERSITY
    Inventors: Zhichao Ma, Shuai Tong, Dongni Liu, Weizhi Li, Shengteng Zhao, Guolin Xiao, Hairui Du
  • Patent number: 11847966
    Abstract: A shift register (SR) includes a voltage control circuit (110) and a bias compensation circuit (120). The voltage control circuit (110) is configured to control a voltage at a first node (Output) to be a first voltage or a second voltage. The bias compensation circuit (120) is configured to: when the voltage at the first node (Output) is the first voltage, transmit a first signal received by a first signal terminal (VDD-A) to a first signal output terminal (EM1), and transmit a second signal received by a second signal terminal (VDD-B) to a second signal output terminal (EM2); and in response to the voltage at the first node (Output) being the second voltage, transmit a signal received by a first voltage terminal (LVGL1) to the first signal output terminal (EM1) and the second signal output terminal (EM2).
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: December 19, 2023
    Assignee: Boe Technology Group Co., LTD.
    Inventors: Haoliang Zheng, Minghua Xuan, Dongni Liu, Zhenyu Zhang, Li Xiao, Liang Chen, Hao Chen, Jiao Zhao, Lijun Yuan, Yi Ouyang, Qi Qi
  • Publication number: 20230360586
    Abstract: Disclosed are a display panel, a control method for the same, and a display device. The display panel includes: M rows and N columns of pixel units, N current data lines sequentially arranged along a row direction, and N time-length data lines sequentially arranged along the row direction. Each pixel unit includes a pixel circuit, the pixel circuit including a current data terminal and a time-length data terminal. An ith column of the current data lines and an ith column of the time-length data lines are respectively located on two sides of an ith column of pixel units, the current data terminals of the pixel circuits of the ith column of pixel units are electrically connected to the ith column of the current data lines.
    Type: Application
    Filed: April 15, 2021
    Publication date: November 9, 2023
    Inventors: Li XIAO, Haoliang ZHENG, Minghua XUAN, Hao CHEN, Dongni LIU, Jiao ZHAO, Seungwoo HAN, Liang CHEN, Qi QI
  • Publication number: 20230351968
    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: Application
    Filed: June 21, 2023
    Publication date: November 2, 2023
    Inventors: Zhenyu ZHANG, Li XIAO, Dongni LIU, Liang CHEN, Hao CHEN, Haoliang ZHENG, Minghua XUAN, Jiao ZHAO
  • Publication number: 20230351943
    Abstract: Disclosed are a pixel circuit and a drive method for the same, and a display panel and a drive method for the same. The pixel circuit is configured to drive a light-emitting element to emit light, including: a current control sub-circuit and a time-length control sub-circuit. The current control sub-circuit is electrically connected to a current data terminal, a scanning signal terminal, a reset signal terminal, an initial signal terminal, a light-emitting signal terminal, a first power terminal, a first node, and a second node, respectively. The time-length control sub-circuit is electrically connected to a first control terminal, a second control terminal, a time-length data terminal, a ground terminal, a light-emitting signal terminal, a high-frequency input terminal, and the first node, respectively.
    Type: Application
    Filed: April 21, 2021
    Publication date: November 2, 2023
    Inventors: Li XIAO, Haoliang ZHENG, Minghua XUAN, Seungwoo HAN, Hao CHEN, Dongni LIU, Jiao ZHAO, Liang CHEN, Qi QI
  • Publication number: 20230351944
    Abstract: Provided are a pixel circuit and a method for driving the same, a display panel and a display device. A drive circuit (04) in the pixel circuit is capable of controlling conduction/non-conduction between a second node (N2) and a third node (N3) under the control of a potential of a first node (N1). A light-emission control circuit (03) in the pixel circuit is capable of controlling conduction/non-conduction between a cathode of a light-emitting element and a second node (N2), and controlling conduction/non-conduction between the third node (N3) and a pull-down power terminal (LVSS) under the control of a potential of a light-emission control signal; and a potential of the first node (N1) is not be affected by a potential of an anode of the light-emitting element.
    Type: Application
    Filed: March 11, 2021
    Publication date: November 2, 2023
    Inventors: Seungwoo HAN, Li XIAO, Haoliang ZHENG, Dongni LIU, Jiao ZHAO, Liang CHEN, Hao CHEN, Minghua XUAN
  • Patent number: 11804169
    Abstract: A pixel driving circuit includes a driving control sub-circuit and a time control sub-circuit. The driving control sub-circuit includes a first driving sub-circuit. The first driving sub-circuit is configured to output a driving signal to drive an element to be driven to operate. The time control sub-circuit includes a second driving sub-circuit. The second driving sub-circuit is configured to output a third voltage signal to make the first driving sub-circuit stop outputting the driving signal, so as to control operating duration of the element to be driven.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: October 31, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Minghua Xuan, Dongni Liu, Qi Qi, Jing Liu, Han Yue
  • 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