Patents by Inventor Guofeng Hu

Guofeng Hu 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: 20240079443
    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: Application
    Filed: November 13, 2023
    Publication date: March 7, 2024
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ming YANG, Wei HAO, Qibing GU, Guofeng HU, Lingyun SHI, Minghua XUAN, Can ZHANG
  • Publication number: 20240062708
    Abstract: Disclosed are a display panel and a display apparatus, wherein the display panel includes a plurality of first signal lines extending along a first direction and a plurality of pixel units arranged in an array in the first direction and a second direction; at least one pixel unit among the plurality of pixel units includes a component group and a drive chip configured to drive the component group to emit light; the component group includes K light emitting elements, and the drive chip includes K signal channel terminals, K is a positive integer greater than or equal to 2; for a pixel unit in a j-th row and an i-th column, cathodes of the K light emitting elements are electrically connected with an i-th first signal line, and an anode of an s-th light emitting element is electrically connected with an s-th signal channel terminal of the drive chip.
    Type: Application
    Filed: December 30, 2021
    Publication date: February 22, 2024
    Inventors: Qibing GU, Guofeng HU, Xiuling LI, Bao FU, Jiayi LI, Xiurong WANG, Yicheng LIN, Lingyun SHI
  • Patent number: 11869921
    Abstract: A light emitting plate, a wiring plate and a display device are provided. The light emitting plate includes a base substrate; and light emitting units on the base substrate. Each of the light emitting units includes a light emitting sub-unit, the light emitting sub-unit includes a connection line unit and a light emitting diode chip connected with the connection line unit. The connection line unit includes at least two electrical contact pairs, and each of the at least two 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 of the at least two electrical contact pairs in each connection line unit is connected with the light emitting diode chip.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: January 9, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ming Yang, Wei Hao, Qibing Gu, Guofeng Hu, Lingyun Shi, Minghua Xuan, Can Zhang
  • Publication number: 20230326398
    Abstract: An array substrate and a driving method therefor, and a display apparatus are disclosed. The array substrate includes: a base substrate; and a plurality of pixels located on the base substrate, where the plurality of pixels are arranged in an array in a first direction and a second direction. At least one pixel of the plurality of pixels includes: sub-pixels, and a pixel driving chip for driving each sub-pixel in the pixel. The array substrate further includes: a plurality of addressing signal lines located on the base substrate, where the addressing signal lines are coupled to addressing signal ends of pixel driving chips of a row of the pixels arranged in the first direction; and a plurality of data lines located on the base substrate, where the data lines are coupled to data signal ends of pixel driving chips of a column of the pixels arranged in the second direction.
    Type: Application
    Filed: January 8, 2021
    Publication date: October 12, 2023
    Inventors: Xiuling LI, Qibing GU, Guofeng HU, Hongge MEI, Nana GAO, Bao FU, Xiangyi CHEN, Lingyun SHI, Wenchieh HUANG
  • Patent number: 11727861
    Abstract: Provided are a pixel drive circuit, a drive circuit of a display panel, and a display apparatus. The pixel drive circuit includes a switch unit and a drive unit, the switch unit is connected to the drive unit, and the drive unit is configured to be connected to a plurality of sub-pixel units; the switch unit is configured to receive a scan signal and a data signal, be switched on under action of the scan signal, and send the data signal to the drive unit; and the drive unit is configured to send the data signal to the plurality of sub-pixel units connected thereto in a time division manner.
    Type: Grant
    Filed: February 7, 2021
    Date of Patent: August 15, 2023
    Assignees: BOE MLED Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xiurong Wang, Wei Hao, Lingyun Shi, Qibing Gu, Guofeng Hu, Tao Yang, Mengmeng Wang, Wenhao Liu
  • Patent number: 11587506
    Abstract: Pixel structure, driving method thereof and display device are disclosed. The pixel structure includes: light-emitting device having first electrode coupled to corresponding first voltage line. Driving chip includes: receiving circuit configured to decode first digital clock signal on first control line in display phase to obtain first address data and light emission data; address storage circuit configured to store reference address data before the display phase; data processing circuit configured to output PWM signal and current control signal corresponding to each light-emitting device according to the light emission data when the first address data is the same as the reference address data; current output circuit configured to output driving current according to the current control signal; and gating circuit configured to sequentially receive the PWM signal corresponding to each light-emitting device and transmit the driving current to the output terminal when the PWM signal is in active-level state.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: February 21, 2023
    Assignees: BOE MLED TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hong Liu, Qibing Gu, Lingyun Shi, Ming Chen, Xiurong Wang, Guofeng Hu, Mingjian Yu, Donghui Wang
  • Publication number: 20230015967
    Abstract: A gaze point calculation apparatus includes: a first cache register, a multiplexer, an arithmetic unit assembly, and a state machine. The first cache register is configured to receive and store first coordinates and a plurality of calibration parameters required when second required are obtained through calculation according to the first coordinates. The state machine is configured to control the multiplexer to select each time at least one value from the first cache register and transmit same to the arithmetic unit assembly. The arithmetic unit assembly is configured to perform a preset operation on the at least one value received each time until the second coordinates are obtained, and output the second coordinates under control of the state machine.
    Type: Application
    Filed: May 11, 2021
    Publication date: January 19, 2023
    Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Gaoming SUN, Guofeng HU
  • Publication number: 20220309997
    Abstract: A display panel and a driving method thereof, and a display device. The display panel includes a substrate and a plurality of pixel circuits arranged in an array on the substrate, each of the plurality of pixel circuits includes a pixel driving chip and at least one light-emitting element electrically connected to the pixel driving chip, and the pixel driving chip is configured to receive and store a data signal and drive the at least one light-emitting element to emit light according to the data signal.
    Type: Application
    Filed: September 18, 2020
    Publication date: September 29, 2022
    Applicants: BOE MLED Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Guofeng Hu, Qibing Gu, Lingyun Shi, Ming Chen, Xiurong Wang, Wei Hao, Tao Yang, Hong Liu, Mingjian Yu, Donghui Wang, Jing Xue, Yong Zhang, Jian Wang, Jian Lin, Xianglei Qin, Zhichao Yang, Zepeng Sun, Honggui Jin, Yashuai An, Zhilong Duan, Lingfang Nie, Liangzhen Tang, Limin Zhang
  • Publication number: 20220301489
    Abstract: Provided are a pixel drive circuit, a drive circuit of a display panel, and a display apparatus. The pixel drive circuit includes a switch unit and a drive unit, the switch unit is connected to the drive unit, and the drive unit is configured to be connected to a plurality of sub-pixel units; the switch unit is configured to receive a scan signal and a data signal, be switched on under action of the scan signal, and send the data signal to the drive unit; and the drive unit is configured to send the data signal to the plurality of sub-pixel units connected thereto in a time division manner.
    Type: Application
    Filed: February 7, 2021
    Publication date: September 22, 2022
    Inventors: Xiurong WANG, Wei HAO, Lingyun SHI, Qibing GU, Guofeng HU, Tao YANG, Mengmeng WANG, Wenhao LIU
  • Publication number: 20220302093
    Abstract: Provided is a pixel structure, a display panel, and a display device. The pixel structure includes three sub-pixel units of different colors and a driving unit. The three sub-pixel units include a first sub-pixel unit, a second sub-pixel unit, and a third sub-pixel unit. The driving unit is configured to send corresponding display data to the three sub-pixel units respectively. The sub-pixel units are arranged on one side or two sides of the driving unit.
    Type: Application
    Filed: January 28, 2021
    Publication date: September 22, 2022
    Inventors: Qibing GU, Guofeng HU, Xiurong WANG, Jing XUE, Lingyun SHI, Ming CHEN
  • Patent number: 11341905
    Abstract: A level converter, a data processing method, and a display device are provided. The level converter is used for providing a direct current signal for image display and includes a storage circuit, a processing circuit, and a level conversion component. The level conversion component includes a plurality of level conversion circuits; the storage circuit is configured to store image data of an image to be displayed; the processing circuit is in signal connection with the storage circuit, and is configured to obtain control data corresponding to the image data of the image to be displayed according to the image data; and the level conversion component is in signal connection with the processing circuit, and is configured to control whether each of the plurality of level conversion circuits performs level conversion according to the control data, so as to generate the direct current signal.
    Type: Grant
    Filed: May 25, 2020
    Date of Patent: May 24, 2022
    Assignees: BOE MLED Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Hong Liu, Yankai Gao, Guofeng Hu, Yuxin Bi, Mingjian Yu, Lingyun Shi, Ming Chen
  • Publication number: 20220139316
    Abstract: Pixel structure, driving method thereof and display device are disclosed. The pixel structure includes: light-emitting device having first electrode coupled to corresponding first voltage line. Driving chip includes: receiving circuit configured to decode first digital clock signal on first control line in display phase to obtain first address data and light emission data; address storage circuit configured to store reference address data before the display phase; data processing circuit configured to output PWM signal and current control signal corresponding to each light-emitting device according to the light emission data when the first address data is the same as the reference address data; current output circuit configured to output driving current according to the current control signal; and gating circuit configured to sequentially receive the PWM signal corresponding to each light-emitting device and transmit the driving current to the output terminal when the PWM signal is in active-level state.
    Type: Application
    Filed: March 30, 2020
    Publication date: May 5, 2022
    Inventors: Hong LIU, Qibing GU, Lingyun SHI, Ming CHEN, Xiurong WANG, Guofeng HU, Mingjian YU, Donghui WANG
  • Patent number: 11322076
    Abstract: A pixel driving chip and a driving method therefor, and a display apparatus. The pixel driving chip includes a data input circuit, a time selection circuit, and a current control circuit; the data input circuit is configured to receive display data, and partition the display data to obtain a data partition to which the display data belongs in M data partitions that are obtained on the basis of a display data range; the time selection circuit is configured to determine, according to the data partition to which the display data belongs, an output time length corresponding to the display data, and within the output time length, output the display data to the current control circuit; the current control circuit is configured to determine, according to the display data, a driving current flowing through a light emitting element corresponding to the display data.
    Type: Grant
    Filed: October 21, 2020
    Date of Patent: May 3, 2022
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Lingyun Shi, Wenchieh Huang, Ming Chen, Xue Dong, Haiwei Sun, Xiurong Wang, Qibing Gu, Guofeng Hu
  • Patent number: 11315481
    Abstract: Disclosed includes an apparatus, a drive method, a display panel, and a display device. The apparatus may comprise a drive transistor, a light emitting device driven by the drive transistor and a comparator. The comparator may have a first input coupled to a pixel voltage, a second input coupled to a reference voltage, a first control terminal coupled to a first control voltage, a second control terminal coupled to a second control voltage, and an output coupled to a gate of the drive transistor. The comparator may be configured to output the first control voltage to the output during a first time period in which the pixel voltage is not smaller than the reference voltage and output the second control voltage to the output during a second time period in which the pixel voltage is smaller than the reference voltage.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: April 26, 2022
    Assignees: BOE MLED Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yankai Gao, Ming Chen, Lingyun Shi, Xin Duan, Yuxin Bi, Hong Liu, Mingjian Yu, Guofeng Hu
  • Publication number: 20220123044
    Abstract: A light emitting plate, a wiring plate and a display device are provided. The light emitting plate includes a base substrate; and light emitting units on the base substrate. Each of the light emitting units includes a light emitting sub-unit, the light emitting sub-unit includes a connection line unit and a light emitting diode chip connected with the connection line unit. The connection line unit includes at least two electrical contact pairs, and each of the at least two 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 of the at least two electrical contact pairs in each connection line unit is connected with the light emitting diode chip.
    Type: Application
    Filed: January 21, 2020
    Publication date: April 21, 2022
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ming YANG, Wei HAO, Qibing GU, Guofeng HU, Lingyun SHI, Minghua XUAN, Can ZHANG
  • Patent number: 11308897
    Abstract: A display device and a display control method, and the display device includes: a backlight module, a first display panel, and a second display panel, and a processor. The processor is configured to: acquire a pixel grayscale matrix of an image to be displayed; determine desired brightness of each pixel by using a grayscale-brightness curve of the second display panel based on the pixel grayscale matrix; determine set light-emitting brightness of backlight partition according to grayscale information in the pixel grayscale matrix corresponding to the backlight partition; obtain a first corrected brightness of each backlight partition based on light diffusion coefficients of the plurality of backlight partitions; determine a grayscale of pixel unit according to a brightness difference between the first corrected brightness and the desired brightness; obtain a second corrected brightness of the backlight partition.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: April 19, 2022
    Assignees: BOE MLED Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tiankuo Shi, Lingyun Shi, Xiaomang Zhang, Xin Duan, Wei Sun, Guofeng Hu, Zhihua Ji, Yanhui Xi, Yan Sun, Bin Dai, Yue Li, Yifan Hou, Yilang Sun, Chuanjun Liu, Xue Dong
  • Patent number: 11289009
    Abstract: A pixel driving circuit for a light-emission-device-based display panel is provided, including a driving transistor coupled to a light-emission device per subpixel; a digital-driving circuit having a first input terminal configured to receive a pixel voltage signal corresponding to a grayscale level of a subpixel image to be displayed and a first output terminal coupled to a gate terminal of the driving transistor. The digital-driving circuit is configured to convert the pixel voltage signal to a digital signal and transform the digital signal to a pulse-width-modulation (PWM) signal outputted via the first output terminal to the gate terminal of the driving transistor. The PWM signal comprises a pulse width proportional to the grayscale level as a duty cycle in a period of driving the light-emitting device to display subpixel image.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: March 29, 2022
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.
    Inventors: Guofeng Hu, Zhenkun Song, Ming Chen, Lingyun Shi, Yuxin Bi, Xin Duan, Yankai Gao, Hong Liu, Mingjian Yu
  • Publication number: 20220084460
    Abstract: A pixel driving chip and a driving method therefor, and a display apparatus. The pixel driving chip includes a data input circuit, a time selection circuit, and a current control circuit; the data input circuit is configured to receive display data, and partition the display data to obtain a data partition to which the display data belongs in M data partitions that are obtained on the basis of a display data range; the time selection circuit is configured to determine, according to the data partition to which the display data belongs, an output time length corresponding to the display data, and within the output time length, output the display data to the current control circuit; the current control circuit is configured to determine, according to the display data, a driving current flowing through a light emitting element corresponding to the display data.
    Type: Application
    Filed: October 21, 2020
    Publication date: March 17, 2022
    Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lingyun SHI, Wenchieh HUANG, Ming CHEN, Xue DONG, Haiwei SUN, Xiurong WANG, Qibing GU, Guofeng HU
  • Publication number: 20210407378
    Abstract: A pixel driving circuit for a light-emission-device-based display panel is provided, including a driving transistor coupled to a light-emission device per subpixel; a digital-driving circuit having a first input terminal configured to receive a pixel voltage signal corresponding to a grayscale level of a subpixel image to be displayed and a first output terminal coupled to a gate terminal of the driving transistor. The digital-driving circuit is configured to convert the pixel voltage signal to a digital signal and transform the digital signal to a pulse-width-modulation (PWM) signal outputted via the first output terminal to the gate terminal of the driving transistor. The PWM signal comprises a pulse width proportional to the grayscale level as a duty cycle m a period of driving the light-emitting device to display subpixel image.
    Type: Application
    Filed: October 25, 2019
    Publication date: December 30, 2021
    Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.
    Inventors: Guofeng Hu, Zhenkun Song, Ming Chen, Lingyun Shi, Yuxin Bi, Xin Duan, Yankai Gao, Hong Liu, Mingjian Yu
  • Publication number: 20210407377
    Abstract: Disclosed includes an apparatus, a drive method, a display panel, and a display device. The apparatus may comprise a drive transistor, a light emitting device driven by the drive transistor and a comparator. The comparator may have a first input coupled to a pixel voltage, a second input coupled to a reference voltage, a first control terminal coupled to a first control voltage, a second control terminal coupled to a second control voltage, and an output coupled to a gate of the drive transistor. The comparator may be configured to output the first control voltage to the output during a first time period in which the pixel voltage is not smaller than the reference voltage and output the second control voltage to the output during a second time period in which the pixel voltage is smaller than the reference voltage.
    Type: Application
    Filed: November 14, 2019
    Publication date: December 30, 2021
    Inventors: Yankai GAO, Ming CHEN, Lingyun SHI, Xin DUAN, Yuxin BI, Hong LIU, Mingjian YU, Guofeng HU