Patents by Inventor Minghua XUAN

Minghua XUAN 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: 20240386842
    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: July 30, 2024
    Publication date: November 21, 2024
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Minghua XUAN, Dongni LIU, Qi QI, Jing LIU, Han YUE
  • Publication number: 20240363599
    Abstract: A method for preparing the display substrate includes: providing a first substrate, and forming a light emitting chip layer on the first substrate to form a first backplane, wherein the light emitting chip layer includes: light emitting chips arranged in array, which are configured to emit light of a first color and include N sub-pixels, and N is a positive integer greater than or equal to 1; providing a second substrate, and forming a drive circuit layer on the second substrate to form a second backplane, wherein the drive circuit layer includes: connection electrodes arranged in an array, and the light emitting chips correspond to the connection electrodes one-by-one; transferring the first backplane from which the first substrate is peeled off to the second backplane; forming an optical film layer on a side of the light emitting chip layer away from the second backplane.
    Type: Application
    Filed: August 17, 2022
    Publication date: October 31, 2024
    Inventors: Can WANG, Qi QI, Wei LI, Can ZHANG, Minghua XUAN, Jinfei NIU, Jingjing ZHANG
  • Patent number: 12130527
    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: September 12, 2023
    Date of Patent: October 29, 2024
    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: 12125871
    Abstract: A light emitting plate, a wiring plate and a display device are provided. The light emitting plate includes light emitting units. Each light emitting unit includes a light emitting sub-unit including a connection line unit and a light emitting diode chip connected with the connection line unit. The connection line unit includes electrical contact pairs, and each electrical contact pairs includes a first electrode contact and a second electrode contact; in each connection line unit, the second electrode contacts are electrically connected with each other, the first electrode contacts are electrically connected with each other, and only one electrical contact pairs in each connection line unit is connected with the light emitting diode chip; in each connection line unit, at least two first electrode contacts are arranged adjacent to each other, and at least two first electrode contacts are arranged between at least two second electrode contacts.
    Type: Grant
    Filed: November 13, 2023
    Date of Patent: October 22, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ming Yang, Wei Hao, Qibing Gu, Guofeng Hu, Lingyun Shi, Minghua Xuan, Can Zhang
  • Patent number: 12125428
    Abstract: A shift register includes: an input circuit configured to receive an input signal; a first control circuit configured to control, in response to a second clock signal and a voltage at a second node, a voltage at the first node; a second control circuit configured to control, in response to a first clock signal, the second clock signal, and the voltage at the first node, a voltage at the second node, and control, in response to the second clock signal and the voltage at the first node, a voltage at the fifth node; and an output circuit configured to transmit, in response to an active level at the first node, a second power signal to an output signal terminal, and transmit, in response to an active level at the fifth node, the first power signal to the output signal terminal. All transistors included in the shift register are N-type transistors.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: October 22, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Seungwoo Han, Haoliang Zheng, Dongni Liu, Li Xiao, Jiao Zhao, Xiaorong Cui, Minghua Xuan
  • Patent number: 12112707
    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: April 27, 2023
    Date of Patent: October 8, 2024
    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: 20240331634
    Abstract: A pixel driving circuit includes a first circuit and a second circuit. The first circuit is configured to provide a driving current to a light emitting element under the control of the second circuit; the second circuit is configured to receive a digital selection signal from at least one digital selection signal line, receive a digital data signal from at least one digital data signal line, and control a frequency and duration of the driving current received by the light emitting element during one frame of image, thereby controlling tahe grayscale of a sub-pixel having the light emitting element.
    Type: Application
    Filed: May 9, 2024
    Publication date: October 3, 2024
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD., Beijing BOE Technology Development Co., Ltd.
    Inventors: Ning Cong, Can Zhang, Minghua Xuan, Jinfei Niu, Can Wang, Jingjing Zhang, Jiakui Yan
  • Publication number: 20240321186
    Abstract: An array substrate has a display area and includes at least one pixel group, at least one pixel circuit group and at least one shift register circuit. The at least one pixel group is disposed in the display area. 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. Each pixel circuit group includes at least one pixel driving sub-circuit group. A shift register circuit is disposed between two rows of pixels or two columns of pixels that are different from two rows of pixels or two columns of pixels between which a pixel driving sub-circuit group is disposed.
    Type: Application
    Filed: May 31, 2024
    Publication date: September 26, 2024
    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: 20240304136
    Abstract: Disclosed are an array substrate, a detection method for the array substrate, and a splicing display panel. In the array substrate, each of pixels (1) includes sub-pixels (01) of at least three colors and a pixel driving chip (02) for driving each sub-pixel (01) to emit light; each sub-pixel (01) includes at least one inorganic light-emitting diode; a display area (A1) further includes: a positive signal line (Hm) connected to a positive electrode of each inorganic light-emitting diode, and a data signal line (Dm), a scanning line (Sn), and a reference signal line (Vm) connected to each pixel driving chip (02); each pixel driving chip (02) is used for writing signals of the data signal line (Dm) into the sub-pixels (01) of different colors under the control of the corresponding scanning line (Sn) in a time division manner.
    Type: Application
    Filed: May 14, 2024
    Publication date: September 12, 2024
    Inventors: Hao CHEN, Zhenyu ZHANG, Jiao ZHAO, Li XIAO, Dongni LIU, Haoliang ZHENG, Liang CHEN, Minghua XUAN, Ming YANG, Xinhong LU, Qi QI
  • Publication number: 20240296782
    Abstract: Embodiments of the present disclosure provide a pixel circuit, a driving method therefor and a display apparatus. The pixel circuit includes: an input circuit, configured to input data signals loaded to a first data signal terminal into corresponding input nodes in response to signals loaded to 2N?1 first scanning signal terminals; a control circuit, configured to control signals of 2N control nodes respectively in response to signals of at least two input nodes in the 2N?1 input nodes; an output circuit, configured to provide a signal of an men selection control signal terminal in 2N selection control signal terminals to an output node in response to a signal of an mth control node in the 2N control nodes; and a light-emitting drive circuit, configured to drive a to-be-driven device to work in response to a signal of the output node.
    Type: Application
    Filed: June 22, 2022
    Publication date: September 5, 2024
    Inventors: Ning CONG, Minghua XUAN, Can ZHANG, Can WANG, Jinfei NIU, Jingjing ZHANG, SeungWoo HAN
  • Publication number: 20240296780
    Abstract: Provided are a pixel circuit and a driving method therefor, a display substrate, and a display apparatus, which belong to the technical field of display. In the pixel circuit, a light-emission adjusting circuit can adjust a data signal written by a data write circuit into a first node and can adjust the potential of a second node according to the potential of the first node; and a light-emission control circuit can output a reference signal to a third node under the control of the potential of the second node. Furthermore, a light emission driving circuit needs to output a drive signal to a light-emitting element in response to the potential of the third node, so as to drive the light-emitting element to emit light.
    Type: Application
    Filed: June 8, 2021
    Publication date: September 5, 2024
    Inventors: Ning CONG, Minghua XUAN, Can ZHANG, Xiaochuan CHEN, Lijun YUAN, Qi QI, Can WANG, Jinfei NIU
  • Publication number: 20240297176
    Abstract: An array baseplate and a preparation method thereof, and a display device. The array baseplate includes: a substrate; a drive unit disposed on one side of the substrate; and a light-emitting unit including at least one light-emitting subunit and disposed on a side of the substrate away from the drive unit, wherein the light-emitting unit is electrically connected to the drive unit through a wiring penetrating the substrate, and at least part area of each light-emitting subunit is in direct contact with the substrate. The light-emitting unit and the drive unit in the array baseplate are located on two sides of the substrate, and at least part area of the light-emitting subunit is in direct contact with the substrate.
    Type: Application
    Filed: June 15, 2022
    Publication date: September 5, 2024
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Zhang, Xinxin Zhao, Ning Cong, Minghua Xuan, Xiaochuan Chen
  • Patent number: 12080229
    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: September 19, 2023
    Date of Patent: September 3, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Minghua Xuan, Dongni Liu, Qi Qi, Jing Liu, Han Yue
  • Patent number: 12073762
    Abstract: The pixel driving circuit includes a current control sub-circuit configured to output a gray scale current signal to an element to be driven, and a gating sub-circuit. The gating sub-circuit is coupled to a scan signal terminal, a reset signal terminal, a gating data signal terminal and a pulse voltage signal terminal; the gating sub-circuit is configured to drive the element to be driven to continuously emit light under the control of a scan signal from the scan signal terminal and a gating data signal from the gating data signal terminal, and to drive the element to be driven to intermittently emit light under the control of a reset signal from the reset signal terminal, the gating data signal from the gating data signal terminal, and a pulse voltage signal from the pulse voltage signal terminal.
    Type: Grant
    Filed: June 7, 2023
    Date of Patent: August 27, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lijun Yuan, Can Zhang, Ning Cong, Wei Li, Can Wang, Jinfei Niu, Jingjing Zhang, Minghua Xuan
  • Patent number: 12073772
    Abstract: Disclosed is an array substrate including multiple first selection circuits with each including at least two first selection transistors and at least two first anticreeping transistors. Each first selection transistor is connected with one first anticreeping transistor in series. When the first selection transistor is turned on by a first turn-on signal from a first control signal terminal, the first anticreeping transistor is turned on by a second turn-on signal from a second control signal terminal. When the first selection transistor is turned off by a first turn-off signal from the first control signal terminal, the first anticreeping transistor is turned off to make the first selection transistors and the data signal terminal disconnected, by a second turn-off signal from the second control signal terminal. A voltage of the first turn-off signal is greater than a voltage of the second turn-off signal.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: August 27, 2024
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Haoliang Zheng, Minghua Xuan, Dongni Liu, SeungWoo Han, Li Xiao, Liang Chen, Hao Chen, Jiao Zhao, Qi Qi
  • Publication number: 20240284711
    Abstract: A display substrate, a preparation method therefor, and a display device. A display substrate includes a plurality of conductive layers disposed on a silicon-based substrate (101), a conductive layer includes a first sub-electrode plate (110) and a second sub-electrode plate (120), the first sub-electrode plate (110) and the second sub-electrode plate (120) form a first storage capacitor of a MOM capacitance structure, and another conductive layer comprises a third sub-electrode plate (130) and a fourth sub-electrode plate (140), the third sub-electrode plate (130) and the fourth sub-electrode plate (140) form a second storage capacitor of a MOM capacitance structure; the first sub-electrode plate (110) and the fourth sub-electrode plate (140) constitute a third storage capacitor of a MIM capacitance structure, and/or the second sub-electrode plate (120) and the third sub-electrode plate (130) constitute a fourth storage capacitor of a MIM capacitance structure.
    Type: Application
    Filed: February 23, 2022
    Publication date: August 22, 2024
    Inventors: Ning CONG, Can ZHANG, Minghua XUAN, Jinfei NIU, Can WANG, Wei LI, Jingjing ZHANG, Xiaochuan CHEN
  • Publication number: 20240274069
    Abstract: A pixel driving circuit including a driving circuit, a first light emission control circuit and a first digital circuit. The driving circuit is connected to a first power source end, a first node and the light-emitting unit, and is used for providing, according to the voltage of the first node, a driving current for the light-emitting unit by using the first power source end; the first light emission control circuit is connected to a first digital signal end; and the first digital circuit comprises a first signal conversion circuit, and the first signal conversion circuit is connected to a first analog signal end and the first digital signal end and is used for inputting the first digital signal into the first digital signal end according to a first analog signal of the first analog signal end.
    Type: Application
    Filed: April 23, 2024
    Publication date: August 15, 2024
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Can WANG, Yan QU, Can ZHANG, Minghua XUAN, Xiaochuan CHEN, Ning CONG, Jinfei NIU, Jingjing ZHANG
  • Publication number: 20240274586
    Abstract: The present application provides a light-emitting device, a display apparatus, the light-emitting device including: a substrate; at least two light-emitting units, in a direction perpendicular to the plane where the substrate is located, orthographic projections of two adjacent light-emitting units on the substrate overlap; at least one patterned bonding layer, located between two adjacent light-emitting units, including a plurality of spaced bonding portions, the bonding portions are configured to be fixed and electrically connected to the two adjacent light-emitting units; the orthographic projection of the bonding portion on the substrate is within the orthographic projection of the light-emitting unit on the substrate, and the sum of the orthographic projection areas of all bonding portions on the substrate is less than the area of the orthographic projection of the light-emitting device on the substrate.
    Type: Application
    Filed: May 23, 2022
    Publication date: August 15, 2024
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Can Wang, Minghua Xuan, Xuan Liang, Xue Dong, Qi Qi, Mingkun Yang
  • Patent number: 12063833
    Abstract: The present application relates to a display panel, a manufacturing method thereof, and a display device. The display panel includes a base substrate, a plurality of pixel structures on the base substrate, and a color resist layer on a side of the plurality of pixel structures facing away the base substrate. The color resist layer includes a plurality of color resist blocks in one-to-one correspondence with the plurality of pixel structures. Light emitted from each of the plurality of pixel structures has the same color as the color resist block corresponding thereto.
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: August 13, 2024
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Can Wang, Can Zhang, Xiaochuan Chen, Minghua Xuan, Han Yue, Ming Yang, Ning Cong
  • Patent number: 12057540
    Abstract: The present disclosure provides a display panel and a manufacturing method. The display panel includes: a base substrate including a display surface and a display back surface arranged opposite to each other, and a side surface connected to the display surface and the display back surface; a plurality of first wirings on the display surface of the base substrate; a plurality of second wirings on the display back surface of the base substrate; a transition body on the side surface of the base substrate and in contact with the first wirings and the second wirings, a surface of the transition body away from the side surface being a smooth curved surface; and a plurality of connection lines covering an outer surface of the transition body, each first wiring being electrically connected to a corresponding second wiring via a corresponding connection line.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: August 6, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongni Liu, Minghua Xuan, Chao Liu, Yingwei Liu