Patents by Inventor Chunfang Zhang

Chunfang Zhang 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: 20240105091
    Abstract: The present disclosure provides a gate driving circuit, a method of driving a gate driving circuit, and a display panel. The gate driving circuit includes a plurality of driving units connected in cascade. Each driving unit includes: N shift register units; and a mode control circuit connected to the N shift register units, wherein the mode control circuit is configured to receive a control signal for the driving unit, and connect the N shift register units in one of a plurality of resolution modes under the control of the control signal.
    Type: Application
    Filed: October 20, 2023
    Publication date: March 28, 2024
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Weixing Liu, Wei Qin, Kuanjun Peng, Tieshi Wang, Chunfang Zhang, Hui Zhang, Changfeng Li, Shunhang Zhang, Kai Hou, Hongrun Wang, Liwei Liu, Yunsik Im, Wanpeng Teng, Xiaolong Li, Kai Guo, Zhiqiang Xu
  • Patent number: 11837133
    Abstract: The present disclosure provides a gate driving circuit, a method of driving a gate driving circuit, and a display panel. The gate driving circuit includes a plurality of driving units connected in cascade. Each driving unit includes: N shift register units; and a mode control circuit connected to the N shift register units, wherein the mode control circuit is configured to receive a control signal for the driving unit, and connect the N shift register units in one of a plurality of resolution modes under the control of the control signal.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: December 5, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Weixing Liu, Wei Qin, Kuanjun Peng, Tieshi Wang, Chunfang Zhang, Hui Zhang, Changfeng Li, Shunhang Zhang, Kai Hou, Hongrun Wang, Liwei Liu, Yunsik Im, Wanpeng Teng, Xiaolong Li, Kai Guo, Zhiqiang Xu
  • Publication number: 20230274696
    Abstract: A pixel driving circuit includes a data writing circuit, a light-emitting control circuit and a light-emitting diode chip. The data writing circuit is electrically connected to a first scanning signal terminal, a data signal terminal and a first node. The light-emitting control circuit is electrically connected to the first node, an enable signal terminal, a first voltage signal terminal and a second node, and is configured to transmit a first voltage signal received at the first voltage signal terminal to the second node. The light-emitting diode chip is electrically connected to the second node and a second voltage signal terminal. The light-emitting diode chip includes a plurality of light-emitting portions. The light-emitting diode chip is configured to drive the plurality of light-emitting portions to emit light in different periods of time respectively or drive at least two light-emitting portions to emit light in a same period of time.
    Type: Application
    Filed: November 22, 2021
    Publication date: August 31, 2023
    Inventors: Weixing LIU, Kuanjun PENG, Bin QIN, Xue DONG, Fangzhen ZHANG, Wanpeng TENG, Tieshi WANG, Wanzhi CHEN, Kai GUO, Chunfang ZHANG
  • Publication number: 20230159959
    Abstract: The present application discloses a Bacillus sp. producing a bioflocculant and a biosurfactant. The microbial classification of the Bacillus sp. is named Bacillus sp. SS15, which has been preserved in China Center for Type Culture Collection on Mar. 29, 2021, and its preservation number is CCTCC M2021295; the 16S rRNA sequence of SS15 is shown as SEQ ID NO.1. Bacillus sp. SS15 obtained by the present application has the function of simultaneously producing a bioflocculant and a biosurfactant. The bioflocculant and biosurfactant produced by Bacillus sp. SS15 of the present application not only have high activity, but also show strong tolerance in the ranges of pH (2-12), temperature (4° C.-100° C.) and salinity (0-100 g/L). Meanwhile, they can be applied to the remediation of a fracturing flowback liquid and can effectively promote the removal of chroma, suspended solids, COD, n-alkanes and polycyclic aromatic hydrocarbons at the same time.
    Type: Application
    Filed: January 16, 2023
    Publication date: May 25, 2023
    Inventors: Chunfang ZHANG, Feng ZENG, Hanghai ZHOU, Lijia JIANG, Dongdong ZHANG, Yanhong LI, Shichen LI
  • Publication number: 20230129625
    Abstract: The present disclosure provides a gate driving circuit, a method of driving a gate driving circuit, and a display panel. The gate driving circuit includes a plurality of driving units connected in cascade. Each driving unit includes: N shift register units; and a mode control circuit connected to the N shift register units, wherein the mode control circuit is configured to receive a control signal for the driving unit, and connect the N shift register units in one of a plurality of resolution modes under the control of the control signal.
    Type: Application
    Filed: January 28, 2021
    Publication date: April 27, 2023
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Weixing Liu, Wei Qin, Kuanjun Peng, Tieshi Wang, Chunfang Zhang, Hui ZHANG, Changfeng Li, Shunhang Zhang, Kai Hou, Hongrun Wang, Liwei Liu, Yunsik Im, Wanpeng Teng, Xiaolong Li, Kai Guo, Zhiqiang Xu
  • Patent number: 11636818
    Abstract: Provided are a display panel, a drive method thereof and a display apparatus. The display panel includes a plurality of scan signal lines, a plurality of data signal lines and a plurality of sub-pixels; at least one sub-pixel includes switch assembly and a display unit, wherein the switch assembly at least includes a control terminal, an input terminal and an output terminal, wherein the input terminal is connected to the data signal line, the output terminal is connected to the display unit, and the control terminal or the input terminal is connected to the scan signal line; the display panel further includes at least one switch control line, which is connected to the control terminal of the switch assembly, and the switch control line is configured to control the input terminal and the output terminal of the switch assembly to be turned on or off.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: April 25, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Weixing Liu, Tieshi Wang, Wei Qin, Zhiqiang Xu, Chunfang Zhang
  • Patent number: 11605347
    Abstract: A display panel includes a plurality of pixels and an electrostatic circuit. At least one pixel includes: a pixel electrode; a common electrode; a light-emitting element; and a driving sub-circuit coupled to a scanning signal terminal, a data signal terminal, a light-emitting control signal terminal, a first voltage signal terminal and a first terminal of a light-emitting element, and outputs a first voltage signal from the first voltage signal terminal to the light-emitting element controlled by a scanning signal, a data signal, and a light-emitting control signal. The electrostatic circuit couples a first signal line and a second signal line, the first signal line receives a second voltage signal, and the second signal line receives a third voltage signal and is arranged on a periphery of the plurality of pixels. Common electrodes of the pixels are coupled to each other and to the second signal line.
    Type: Grant
    Filed: April 12, 2022
    Date of Patent: March 14, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Wei Qin, Xiaolong Li, Kuanjun Peng, Chunfang Zhang, Zhiqiang Xu, Yanan Niu
  • Publication number: 20230010444
    Abstract: A display substrate and a display device are disclosed. The display substrate includes a light-transmitting region, wherein the light-transmitting region includes a plurality of rows of effective sub-pixel sets and a plurality of main spacers, each row of the plurality of rows of effective sub-pixel sets includes a plurality of effective sub-pixel sets, each of the plurality of effective sub-pixel sets includes a plurality of effective sub-pixels, any two adjacent effective sub-pixel sets in a same row are spaced apart from each other by one main spacer, the main spacer includes at least two sub-spacers arranged along a column direction. At least two sub-spacers arranged along a row direction have different widths; and/or at least two sub-spacers of a same main sub-spacer have different widths.
    Type: Application
    Filed: August 19, 2021
    Publication date: January 12, 2023
    Inventors: Zhiqiang XU, Wei QIN, Chunfang ZHANG, Weixing LIU, Tieshi WANG, Xuefei SUN
  • Publication number: 20220246094
    Abstract: A display panel includes a plurality of pixels and an electrostatic circuit. At least one pixel includes: a pixel electrode; a common electrode; a light-emitting element; and a driving sub-circuit coupled to a scanning signal terminal, a data signal terminal, a light-emitting control signal terminal, a first voltage signal terminal and a first terminal of a light-emitting element, and outputs a first voltage signal from the first voltage signal terminal to the light-emitting element controlled by a scanning signal, a data signal, and a light-emitting control signal. The electrostatic circuit couples a first signal line and a second signal line, the first signal line receives a second voltage signal, and the second signal line receives a third voltage signal and is arranged on a periphery of the plurality of pixels. Common electrodes of the pixels are coupled to each other and to the second signal line.
    Type: Application
    Filed: April 12, 2022
    Publication date: August 4, 2022
    Inventors: Wei Qin, Xiaolong Li, Kuanjun Peng, Chunfang Zhang, Zhiqiang Xu, Yanan Niu
  • Publication number: 20220165228
    Abstract: Provided are a display panel, a drive method thereof and a display apparatus. The display panel includes a plurality of scan signal lines, a plurality of data signal lines and a plurality of sub-pixels; at least one sub-pixel includes switch assembly and a display unit, wherein the switch assembly at least includes a control terminal, an input terminal and an output terminal, wherein the input terminal is connected to the data signal line, the output terminal is connected to the display unit, and the control terminal or the input terminal is connected to the scan signal line; the display panel further includes at least one switch control line, which is connected to the control terminal of the switch assembly, and the switch control line is configured to control the input terminal and the output terminal of the switch assembly to be turned on or off.
    Type: Application
    Filed: June 22, 2021
    Publication date: May 26, 2022
    Inventors: Weixing LIU, Tieshi WANG, Wei QIN, Zhiqiang XU, Chunfang ZHANG
  • Patent number: 11335261
    Abstract: A display panel and a driving method thereof, and a display apparatus are provided. In the present disclosure, external compensation circuits electrically connected to pixel circuits are added. The external compensation circuits are configured to adjust anode voltages of light emitting devices to cause the anode voltages of the light emitting devices to be consistent with voltages of data voltage ends.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: May 17, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Weixing Liu, Tieshi Wang, Wei Qin, Chunfang Zhang
  • Patent number: 11328669
    Abstract: Embodiments of the present disclosure provide a pixel driving circuit and a driving method thereof, a display panel and a display device.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: May 10, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wei Qin, Xiaolong Li, Kuanjun Peng, Chunfang Zhang, Zhiqiang Xu, Yanan Niu
  • Publication number: 20220115455
    Abstract: The present disclosure relates to a display panel and a terminal device. The display panel includes a display region. At least a part of the display region is a transparent region. The transparent region has a plurality of pixel rows distributed along a column direction, and each of the plurality of pixel rows includes pixels and transparent portions arranged in a row direction. The pixel rows include first pixel rows and second pixel rows, transparent portions each arranged between two adjacent pixels in each of the first pixel rows are first transparent portions, and transparent portions each arranged between two adjacent pixels in each of the second pixel rows are second transparent portions. A width of each of the first transparent portions in the row direction is greater than a width of each of the second transparent portions in the row direction.
    Type: Application
    Filed: May 26, 2021
    Publication date: April 14, 2022
    Inventors: Wei QIN, Zhiqiang XU, Weixing LIU, Wanpeng TENG, Chunfang ZHANG
  • Publication number: 20220036820
    Abstract: A display panel and a driving method thereof, and a display apparatus are provided. In the present disclosure, external compensation circuits electrically connected to pixel circuits are added. The external compensation circuits are configured to adjust anode voltages of light emitting devices to cause the anode voltages of the light emitting devices to be consistent with voltages of data voltage ends.
    Type: Application
    Filed: March 16, 2021
    Publication date: February 3, 2022
    Inventors: Weixing LIU, Tieshi WANG, Wei QIN, Chunfang ZHANG
  • Patent number: 11238803
    Abstract: The present disclosure provides a pixel circuit and a method for driving the same, and a display panel. The pixel circuit includes a driving sub-circuit and a light-emitting control sub-circuit. The driving sub-circuit is configured to transmit a first power voltage at a first power signal terminal to a second node. The light-emitting control sub-circuit is configured to: transmit a voltage at the second node and a second power voltage at the second power signal terminal to the first electrode of the first light-emitting element and the second electrode of the first light-emitting element respectively in a first period, to the first electrode of the second light-emitting element and the second electrode of the second light-emitting element respectively in a second period, and to the first electrode of the third light-emitting element and the second electrode of the third light-emitting element respectively in a third period.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: February 1, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Weixing Liu, Tieshi Wang, Zhiqiang Xu, Shengnan Li, Wanpeng Teng, Chunfang Zhang, Xiaolong Li, Wei Qin, Kai Guo, Kuanjun Peng
  • Patent number: 11231595
    Abstract: A semi-transparent semi-retroreflective film and an air display device are provided. The air display device includes: a first polarizer and a second polarizer assembled with each other to form a cell; a semi-transparent semi-reflective structure and a semi-transparent semi-retroreflective film disposed between the first polarizer and the second polarizer; a first ¼ wave plate disposed at a side of the air display device adjacent to the first polarizer; and a second ¼ wave plate disposed between the semi-transparent semi-reflective structure and the semi-transparent semi-retroreflective film. The air display device is configured such that polarized light incident from the first polarizer, after being processed by an internal optical path of the air display device, exits from the second polarizer to form an air image at a side of the air display device away from the first polarizer.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: January 25, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD
    Inventors: Xiaolong Li, Wei Qin, Kuanjun Peng, Xueling Gao, Fangzhen Zhang, Jintao Peng, Jinqian Wang, Miaomiao Yang, Shuang Sun, Chunfang Zhang, Shengnan Li
  • Patent number: 11216103
    Abstract: A pressure touch control display apparatus and a control method therefor. The pressure touch control display apparatus includes a backlight module, a piezoelectric component and a monitoring circuit, wherein the piezoelectric component is arranged on a reflection sheet of the backlight module, and the piezoelectric component is deformed under the action of a pressure and generates an electrical signal corresponding to the pressure; and the monitoring circuit is electrically connected to the piezoelectric component, and the monitoring circuit is used for monitoring the electrical signal generated by the piezoelectric component.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: January 4, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chunfang Zhang, Xiangxiang Zou
  • Publication number: 20210327357
    Abstract: The present disclosure provides a pixel circuit and a method for driving the same, and a display panel. The pixel circuit includes a driving sub-circuit and a light-emitting control sub-circuit. The driving sub-circuit is configured to transmit a first power voltage at a first power signal terminal to a second node. The light-emitting control sub-circuit is configured to: transmit a voltage at the second node and a second power voltage at the second power signal terminal to the first electrode of the first light-emitting element and the second electrode of the first light-emitting element respectively in a first period, to the first electrode of the second light-emitting element and the second electrode of the second light-emitting element respectively in a second period, and to the first electrode of the third light-emitting element and the second electrode of the third light-emitting element respectively in a third period.
    Type: Application
    Filed: July 22, 2020
    Publication date: October 21, 2021
    Inventors: Weixing Liu, Tieshi Wang, Zhiqiang Xu, Shengnan Li, Wanpeng Teng, Chunfang Zhang, Xiaolong Li, Wei Qin, Kai Guo, Kuanjun Peng
  • Patent number: 11138923
    Abstract: A pixel circuit, a driving method thereof and a display apparatus are provided. The pixel circuit comprises a control module, a short-circuit protection module, a drive transistor and a light-emitting device, wherein the short-circuit protection module is used for providing a data voltage to a gate of the drive transistor in response to a gate signal; a second pole of the drive transistor is connected to a positive pole of the light-emitting device, and a negative pole of the light-emitting device receives a second power supply voltage; the short-circuit protection module is used for providing a third power supply voltage to the gate of the drive transistor to turn off the drive transistor in response to the data voltage provided to the gate of the drive transistor and the second power supply voltage provided to the positive pole of the light-emitting device.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: October 5, 2021
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Shengnan Li, Wei Qin, Tieshi Wang, Weixing Liu, Chunfang Zhang, Wanpeng Teng, Dongni Liu
  • Publication number: 20210150975
    Abstract: A pixel circuit, a driving method thereof and a display apparatus are provided. The pixel circuit comprises a control module, a short-circuit protection module, a drive transistor and a light-emitting device, wherein the short-circuit protection module is used for providing a data voltage to a gate of the drive transistor in response to a gate signal; a second pole of the drive transistor is connected to a positive pole of the light-emitting device, and a negative pole of the light-emitting device receives a second power supply voltage; the short-circuit protection module is used for providing a third power supply voltage to the gate of the drive transistor to turn off the drive transistor in response to the data voltage provided to the gate of the drive transistor and the second power supply voltage provided to the positive pole of the light-emitting device.
    Type: Application
    Filed: June 3, 2020
    Publication date: May 20, 2021
    Inventors: Shengnan Li, Wei Qin, Tieshi Wang, Weixing Liu, Chunfang Zhang, Wanpeng Teng, Dongni Liu