Patents by Inventor Ning Cong

Ning Cong 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: 12586525
    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: Grant
    Filed: May 9, 2024
    Date of Patent: March 24, 2026
    Assignees: 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
  • Patent number: 12520668
    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: Grant
    Filed: February 23, 2022
    Date of Patent: January 6, 2026
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Ning Cong, Can Zhang, Minghua Xuan, Jinfei Niu, Can Wang, Wei Li, Jingjing Zhang, Xiaochuan Chen
  • Patent number: 12488746
    Abstract: An array substrate is provided. The array substrate includes pixels arranged in a plurality of repeating units. The array substrate includes a plurality of source electrode connecting lines and a plurality of data connecting pads in the repeating unit, and a plurality of data lines. A respective source electrode connecting line of the plurality of source electrode connecting lines connects first electrodes of a first transistor and a second transistor in a respective pixel driving circuit together. The respective source electrode connecting line is further connected to a respective data connecting pad of the plurality of data connecting pads. The respective data connecting pad is connected to a respective data line of the plurality of data lines. A maximum width of the respective source electrode connecting line is greater than at least 75% of a maximum width of a respective anode.
    Type: Grant
    Filed: February 24, 2023
    Date of Patent: December 2, 2025
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventors: Jinfei Niu, Ning Cong, Can Zhang, Can Wang, Jingjing Zhang, Longfei Fan, Minghua Xuan, Xiaochuan Chen, Jiakui Yan
  • Patent number: 12451050
    Abstract: A pixel circuit includes a light emitting circuit, a light emitting control circuit, a first control circuit and a switch control circuit; the light emitting control circuit controls to connect the control voltage input terminal and the light emitting circuit under the control of a light emitting control signal provided by the light emitting control terminal; the light emitting circuit emits light according to a control voltage provided by the control voltage input terminal; the first control circuit controls a switch control signal under the control of a scanning signal according to a data voltage; N is an integer greater than 1; the switch control circuit includes N switch control terminals, N light emitting control voltage terminals and N switch control sub-circuits; n is a positive integer less than or equal to N.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: October 21, 2025
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., Beijing BOE Technology Development Co., Ltd.
    Inventors: Ning Cong, Minghua Xuan, Can Zhang, Can Wang, Jinfei Niu, Jingjing Zhang
  • Patent number: 12451076
    Abstract: A pixel circuit includes a driving circuit, a control circuit and a gating circuit. The driving circuit is configured to control, under control of a scan signal and a signal received at an enable signal control terminal, on and off of a current path for transmitting a driving current signal. The control circuit is configured to transmit, under control of a control signal received at a control signal terminal, a first enable signal received at a first enable signal terminal or a second enable signal received at a second enable signal terminal to a first node. The gating circuit is configured to transmit, in response to an enable signal received at the first node, a first constant voltage signal received at the first constant voltage signal terminal or a second constant voltage signal received at the second constant voltage signal terminal to the enable signal control terminal.
    Type: Grant
    Filed: November 6, 2024
    Date of Patent: October 21, 2025
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY 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: 20250322790
    Abstract: An array substrate is provided. The array substrate includes pixels arranged in a plurality of repeating units. The array substrate includes a plurality of source electrode connecting lines and a plurality of data connecting pads in the repeating unit, and a plurality of data lines. A respective source electrode connecting line of the plurality of source electrode connecting lines connects first electrodes of a first transistor and a second transistor in a respective pixel driving circuit together. The respective source electrode connecting line is further connected to a respective data connecting pad of the plurality of data connecting pads. The respective data connecting pad is connected to a respective data line of the plurality of data lines. A maximum width of the respective source electrode connecting line is greater than at least 75% of a maximum width of a respective anode.
    Type: Application
    Filed: February 24, 2023
    Publication date: October 16, 2025
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Jinfei Niu, Ning Cong, Can Zhang, Can Wang, Jingjing Zhang, Longfei Fan, Minghua Xuan, Xiaochuan Chen, Jiakui Yan
  • Patent number: 12444356
    Abstract: A display substrate, a manufacturing method thereof and a display apparatus are provided. The display substrate includes multiple sub-pixels, a sub-pixel includes a first region (q1), a gap region (q3) and a second region (q2); the sub-pixel includes a first transistor (T1) including first active layer (1) and first gate electrode (11), a second transistor (T2) including second active layer (2) and second gate electrode (12) and a third transistor (T3) including third active layer (3) and third gate electrode (13); the first active layer is disposed in the first region, the second active layer and the third active layer are disposed in the second region, and via holes through which the first gate electrode and the third gate electrode are connected to a scan signal line and a via hole through which the second gate electrode is connected to the first transistor are provided in the gap region.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: October 14, 2025
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Ning Cong, Longfei Fan, Dachao Li, Can Zhang, Minghua Xuan, Xiaochuan Chen
  • Patent number: 12406622
    Abstract: A pixel driving circuit includes a driving sub-circuit and a control sub-circuit. The driving sub-circuit is coupled to a data signal terminal, a scan signal terminal, a first power supply voltage terminal, an enable signal control terminal and an element to be driven, and the driving sub-circuit is configured to, in response to an enable signal, transmit a generated driving signal to the element to be driven, and control a current path transmitting the driving signal to be turned on and off. The control sub-circuit is coupled to the enable signal control terminal, and the control sub-circuit is configured to, in response to a signal received at the control signal terminal, transmit a signal received at a first enable signal terminal or a signal received at a second enable signal terminal to the enable signal control terminal.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: September 2, 2025
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ning Cong, Li Xiao, Haoliang Zheng, Can Zhang, Minghua Xuan, Xiaochuan Chen, Can Wang, Jinfei Niu, Jingjing Zhang
  • Publication number: 20250261537
    Abstract: The present disclosure provides a display panel, having a light emitting layer, a transparent spacing layer on the light emitting layer, and a wavelength converting layer on the transparent spacing layer, wherein according to the luminance change ratios of the wavelength converting units of adjacent pixels and the light path property of the transparent spacing layer, the cross color issue in wavelength-conversion type display panels is at least partially solved by controlling the intensity proportions of the light arriving at the wavelength converting units of adjacent sub-pixels within a certain range.
    Type: Application
    Filed: April 30, 2025
    Publication date: August 14, 2025
    Inventors: Wei Li, Yichi Zhang, Can Zhang, Can Wang, Lijun Yuan, Ning Cong, Jinfei Niu, Jingjing Zhang, Minghua Xuan
  • Publication number: 20250248192
    Abstract: A display substrate and a display device are provided. The display substrate includes a plurality of light emitting diode chips, each light emitting diode chip includes light emitting units which respectively emit light of different colors, each light emitting unit includes a first electrode, a light emitting layer, a base and a second electrode, and the base and the second electrode are respectively located at both sides of the light emitting layer. In each light emitting diode chip, the light emitting units share the base and the first electrode, the light emitting layers of the light emitting units emit light of the same color, and at least one light emitting unit further includes a first color conversion layer located at a side of the base away from the light emitting layer, so as to convert first color light emitted by the light emitting layer into second color light.
    Type: Application
    Filed: March 4, 2025
    Publication date: July 31, 2025
    Inventors: Can WANG, Wei LI, Lijun YUAN, Jingjing ZHANG, Can ZHANG, Jinfei NIU, Ning CONG, Minghua XUAN, Xiaochuan CHEN, Xue DONG, Qi QI
  • Patent number: 12367807
    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 mth 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: Grant
    Filed: June 22, 2022
    Date of Patent: July 22, 2025
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Ning Cong, Minghua Xuan, Can Zhang, Can Wang, Jinfei Niu, Jingjing Zhang, SeungWoo Han
  • Patent number: 12349575
    Abstract: The present disclosure provides a display panel, having a light emitting layer, a transparent spacing layer on the light emitting layer, and a wavelength converting layer on the transparent spacing layer, wherein according to the luminance change ratios of the wavelength converting units of adjacent pixels and the light path property of the transparent spacing layer, the cross color issue in wavelength-conversion type display panels is at least partially solved by controlling the intensity proportions of the light arriving at the wavelength converting units of adjacent sub-pixels within a certain range.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: July 1, 2025
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wei Li, Yichi Zhang, Can Zhang, Can Wang, Lijun Yuan, Ning Cong, Jinfei Niu, Jingjing Zhang, Minghua Xuan
  • Patent number: 12315430
    Abstract: A pixel circuit, a driving method therefor, a display substrate and a display device are provided. The pixel circuit includes a drive circuit and a light emitting element connected in series between a first power supply terminal and a third power supply terminal; the drive circuit is used for providing a drive current and controlling a time length of conduction of a current path between the first power supply terminal and the third power supply terminal; the light emitting element is used for receiving the drive current in the current path and emitting light; the drive circuit includes a drive control sub-circuit, a light emitting control sub-circuit and a time-length control sub-circuit; the drive control sub-circuit is used for providing a drive current to the first node under control of the first scan signal terminal, the first data signal terminal and the second node.
    Type: Grant
    Filed: June 21, 2022
    Date of Patent: May 27, 2025
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Jinfei Niu, Minghua Xuan, Can Zhang, Can Wang, Ning Cong, Jingjing Zhang, Xiao Bai
  • Patent number: 12300152
    Abstract: A pixel circuit, a driving method thereof, a display substrate and a display device are disclosed. The pixel circuit includes a driving circuit and a light-emitting element, the driving circuit is configured to provide a driving current and control a conducting duration of a current pathway between the first power supply terminal and the second power supply terminal; the light-emitting element is configured to receive the driving current in the current pathway and emit light; the driving circuit includes a current control sub-circuit and a duration control sub-circuit; the current control sub-circuit is configured to provide a driving current to the first node under the control of the first scanning signal terminal, the first data signal terminal and the first power supply terminal in a display stage and a non-display stage.
    Type: Grant
    Filed: June 17, 2022
    Date of Patent: May 13, 2025
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Can Zhang, Ning Cong, Can Wang, Jinfei Niu, Jingjing Zhang, Minghua Xuan, Xiaochuan Chen
  • Patent number: 12295193
    Abstract: A display substrate and a display device are provided. The display substrate includes light emitting diode chips, each light emitting diode chip includes light emitting units which respectively emit light of different colors, each light emitting unit includes a first electrode, a light emitting layer, a base and a second electrode, and the base and the second electrode are respectively located at both sides of the light emitting layer. In each light emitting diode chip, the light emitting units share the base and the first electrode, the light emitting layers of the light emitting units emit light of the same color, and at least one light emitting unit further includes a first color conversion layer located at a side of the base away from the light emitting layer, so as to convert first color light emitted by the light emitting layer into second color light.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: May 6, 2025
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Wang, Wei Li, Lijun Yuan, Jingjing Zhang, Can Zhang, Jinfei Niu, Ning Cong, Minghua Xuan, Xiaochuan Chen, Xue Dong, Qi Qi
  • Patent number: 12283234
    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: Grant
    Filed: April 23, 2024
    Date of Patent: April 22, 2025
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Wang, Yan Qu, Can Zhang, Minghua Xuan, Xiaochuan Chen, Ning Cong, Jinfei Niu, Jingjing Zhang
  • Patent number: 12274124
    Abstract: The present disclosure provides a display assembly and a virtual reality display device. The display assembly includes an electroluminescent element, a packaging layer and a light converging layer arranged sequentially. The light converging layer is configured to converge light emitted by the electroluminescent element and transmitted through the packaging layer. The electroluminescent element includes a plurality of pixels, the light converging layer is tightly attached to the packaging layer, and an orthogonal projection of each pixels onto a surface of the packaging layer to which the light converging layer is tightly attached is completely covered by the light converging layer.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: April 8, 2025
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Wang, Can Zhang, Han Yue, Ming Yang, Ning Cong, Jiao Zhao, Minghua Xuan
  • Patent number: 12272295
    Abstract: Provided is a pixel circuit. The pixel circuit includes a data writing circuit, a light-emission adjusting circuit, a light-emission control circuit, and a light-emission driving circuit; wherein the data writing circuit is coupled to a gate signal terminal, a first data signal terminal and a first node; the light-emission adjusting circuit is coupled to a target signal terminal, the first node and a second node; the light-emission control circuit is coupled to the second node, a reference signal terminal, a light-emission control signal terminal and a third node; the light-emission driving circuit is coupled to the third node, the gate signal terminal, a first power supply terminal, a second data signal terminal and a light-emitting element.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: April 8, 2025
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Ning Cong, Minghua Xuan, Can Zhang, Xiaochuan Chen, Lijun Yuan, Qi Qi, Can Wang, Jinfei Niu
  • Patent number: 12266679
    Abstract: A display substrate and a display device are provided. The display substrate includes light emitting diode chips, each light emitting diode chip includes light emitting units which respectively emit light of different colors, each light emitting unit includes a first electrode, a light emitting layer, a base and a second electrode, and the base and the second electrode are respectively located at both sides of the light emitting layer. In each light emitting diode chip, the light emitting units share the base and the first electrode, the light emitting layers of the light emitting units emit light of the same color, and at least one light emitting unit further includes a first color conversion layer located at a side of the base away from the light emitting layer, so as to convert first color light emitted by the light emitting layer into second color light.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: April 1, 2025
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Wang, Wei Li, Lijun Yuan, Jingjing Zhang, Can Zhang, Jinfei Niu, Ning Cong, Minghua Xuan, Xiaochuan Chen, Xue Dong, Qi Qi
  • Publication number: 20250089417
    Abstract: The present disclosure provides a display apparatus, a display panel and a method of preparing the same. A display panel includes: a base substrate; and a plurality of light-emitting units provided on the base substrate, where each of the light-emitting units includes a first electrode, a first semiconductor layer, a light-emitting layer, a second semiconductor layer, and a second electrode which are stacked, the first electrode is provided on a side of the second electrode facing away from the base substrate, and the plurality of light-emitting units share a common first electrode. The present disclosure can improve display resolution.
    Type: Application
    Filed: July 19, 2022
    Publication date: March 13, 2025
    Inventors: Can WANG, Xiaochuan CHEN, Minghua XUAN, Can ZHANG, Ning CONG, Jinfei NIU, Jingjing ZHANG