Patents by Inventor Kuanjun PENG

Kuanjun PENG 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: 20200302867
    Abstract: A pixel driving circuit and a driving method thereof, and a display panel are provided. The pixel driving circuit includes a driving sub-circuit, a reset sub-circuit, a light-emitting control sub-circuit, and a first compensation sub-circuit, the reset sub-circuit, the light-emitting control sub-circuit, and the first compensation sub-circuit are configured to, in an initialization phase, under control of a first driving signal and a second driving signal, provide the first power supply voltage provided by the first power supply input terminal to the control terminal of the driving sub-circuit; the first terminal of the driving sub-circuit is connected to the second power supply input terminal to receive the second power supply voltage; and the first power supply voltage and the second power supply voltage are configured to cause the driving sub-circuit to be in an on-bias state in the initialization phase.
    Type: Application
    Filed: November 11, 2019
    Publication date: September 24, 2020
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xueling GAO, Kuanjun PENG, Wei QIN, Zhiqiang XU, Tieshi WANG, Xiaolong LI, Jintao PENG
  • Publication number: 20200286926
    Abstract: The present disclosure provides a display backplane and a method for manufacturing the same, a display panel, and a display device. The display backplane includes: a substrate; a first thin film transistor located on one side of the substrate; and a second thin film transistor located on the one side of the substrate, wherein: the first thin film transistor comprises a first active layer, the second thin film transistor comprises a second active layer, wherein the first active layer and the second active layer are located in a same layer, and a material of the first active layer is different from that of the second active layer.
    Type: Application
    Filed: January 3, 2019
    Publication date: September 10, 2020
    Inventors: Yanan NIU, Jiushi WANG, Lei CHEN, Hongwei TIAN, Zhanfeng CAO, Feng GUAN, Feng ZHANG, Shi SHU, Kuanjun PENG, Yichi ZHANG, Qi QI
  • Publication number: 20200273399
    Abstract: The present disclosure provides an OLED panel, a driving method thereof and a display device. The OLED panel has pixel units arranged in rows and columns, and each including an OLED device. The OLED panel includes regions arranged in column direction, and each including at least one row of pixel units and a cathode layer, the OLED devices in each region share the cathode layer therein, and the cathode layer of each region is disconnected from the cathode layer of any other region. The OLED panel includes a cathode voltage supply circuit configured to output a cathode voltage including an operating level to the cathode layer. The cathode voltage supply circuit is configured to start outputting the operating level to the cathode layer of at least one region at a time at least later than a time when all pixel units in the region receive a scan signal.
    Type: Application
    Filed: May 24, 2019
    Publication date: August 27, 2020
    Inventors: Wei QIN, Kuanjun PENG, Chengchung YANG, Xiaolong LI, Zhiqiang XU
  • Publication number: 20200273411
    Abstract: A pixel circuit and a driving method thereof and a display device are provided. In the pixel circuit, a driving circuit is configured to control a driving current flowing through a first terminal and a second terminal of the driving circuit for driving a light emitter element to emit light; a data writing circuit is configured to write a data signal to a control terminal of the driving circuit in response to a scan signal; a first light emission control circuit is configured to apply a first voltage to the first terminal in response to a first light emission control signal; a first reset circuit is configured to apply a reset voltage to the control terminal in response to a first reset signal. The driving circuit is in a fixed bias state when the reset voltage and the first voltage are applied together to the driving circuit.
    Type: Application
    Filed: September 17, 2018
    Publication date: August 27, 2020
    Inventors: Xueling GAO, Kuanjun PENG, Chengchung YANG, Xiangxiang ZOU, Wei QIN
  • Patent number: 10755637
    Abstract: A display method includes: determining whether there is a dynamic part in a current frame of picture, according to image data of a previous frame of picture and the current frame of picture; in a case where there is no dynamic part in the current frame of picture, in a display stage of the current frame of picture, providing a first light emitting control signal being always at an effective electric level state to each of pixel units of a display panel; in a case where there is a dynamic part in the current frame of picture, in the display stage of the current frame of picture, providing a second light emitting control signal, including a part at an effective electric level state and a part at a non-effective electric level state, to pixel units corresponding to at least a part of the dynamic part.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: August 25, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chengchung Yang, Kuanjun Peng, Wei Qin, Zhiqiang Xu, Yan Wei
  • Patent number: 10755636
    Abstract: The present disclosure discloses a pixel circuit and a driving method thereof, a display substrate and a display device, the pixel circuit includes: an initialization sub-circuit, a writing compensation sub-circuit, a light-emitting enabling sub-circuit, a light-emitting device, and a driving sub-circuit, the light-emitting enabling sub-circuit is configured to couple the driving sub-circuit to the light-emitting device under control of an enabling signal terminal. The initialization sub-circuit is configured to input a voltage of an initial voltage terminal to a gate of a driving transistor in the driving sub-circuit under control of a reset signal terminal to initialize the driving sub-circuit. The writing compensation sub-circuit is configured to input, under control of a scanning signal terminal, a data voltage output from a data signal terminal to the driving sub-circuit to perform data compensation on the driving sub-circuit.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: August 25, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chengchung Yang, Xueling Gao, Kuanjun Peng
  • Patent number: 10726782
    Abstract: A pixel circuit, a method for driving the same, a display panel and a display device are provided. The pixel circuit includes a driver transistor, a data writing sub-circuit, an initializing sub-circuit, a voltage prewriting sub-circuit, a threshold compensating sub-circuit, a first light-emission control sub-circuit, a second light-emission control sub-circuit, a capacitor, and a light-emitting element. The voltage prewriting sub-circuit pre-stores voltage of a light-emission supply voltage terminal into the capacitor before the light-emitting element emits light, the magnitude of light-emission current is dependent upon the voltage of the light-emission supply voltage terminal, and independent of the voltage of the first voltage source.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: July 28, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xueling Gao, Jikai Yao, Kuanjun Peng, Chengchung Yang
  • Publication number: 20200233124
    Abstract: The present disclosure provides a structured light generator. The structured light generator includes a transparent substrate, a plurality of transflective structure layers disposed on one side of the transparent substrate and mutually laminated and parallel, wherein distances between any two adjacent transflective structure layers are equal and 0.1? to 10?, ? being a wavelength of incident light, and a transparent filling layer disposed between any two adjacent transflective structure layers.
    Type: Application
    Filed: July 31, 2019
    Publication date: July 23, 2020
    Inventors: Kai GUO, Xiaolong LI, Xueling GAO, Kuanjun PENG, Shengnan LI, Weixing LIU
  • Patent number: 10720104
    Abstract: A pixel circuit and a driving method thereof, and a display device. The pixel circuit includes a pixel unit and a bias-voltage regulating circuit. The pixel unit includes: a driving circuit configured to generate a driving current according to a control voltage at a light-emitting stage; a light-emitting control circuit configured to output the driving current to drive the light-emitting device to emit light at the light-emitting stage; a data writing circuit configured to write a data voltage into the driving circuit; a reset circuit configured to reset the driving circuit under control of a reset voltage, and to reset the light-emitting device under control of a gate line; and a bias-voltage regulating circuit configured to, before the data writing circuit writes the data voltage into the driving circuit, perform bias voltage regulation on the driving circuit to control the pixel unit to be in a bias voltage state.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: July 21, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xueling Gao, Cheng Chung Yang, Kuanjun Peng, Xiangxiang Zou, Yang Yang
  • Publication number: 20200226965
    Abstract: Disclosed is a primary color conversion method, which may expand primary color signals that are applicable to a display device. The primary color conversion method includes: acquiring color coordinates and a brightness value of a first color in a first color gamut having M primary colors according to gray-scale values of the M primary colors corresponding to the first color; and mapping the color coordinates and the luminance value of the first color in the first color gamut to color coordinates and a brightness value of a second color corresponding to the first color in a second color gamut having N primary colors. 3?M, 3?N, M is different from N, and M and N are positive integers.
    Type: Application
    Filed: September 27, 2018
    Publication date: July 16, 2020
    Inventors: Yanhui XI, Bin DAI, Xiaomang ZHANG, Yan SUN, Kuanjun PENG, Haijun NIU, Xiaolong LI, Donghui WANG
  • Patent number: 10657894
    Abstract: Disclosed are a pixel circuit, a method for driving the same, a display panel, and a display device, and in the pixel circuit, a node reset sub-circuit resets a gate of a driver transistor in a first reset stage, a data writing sub-circuit writes a data signal, and compensates for drifting threshold voltage of the driver transistor, in a data writing stage, and a light-emission control sub-circuit connects a first voltage terminal with a light-emitting diode in a light emission stage.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: May 19, 2020
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Kuanjun Peng, Xiangxiang Zou, Chengchung Yang
  • Patent number: 10650751
    Abstract: A pixel driving circuit and a driving method thereof, and a display device. The pixel driving circuit includes a light-emitting driving circuit, a light-emitting component and a gate-source voltage adjustment circuit. A control end, a first end and a second end of the light-emitting driving circuit are electrically connected with a first node, a second node and the light-emitting component respectively; the gate-source voltage adjustment circuit is electrically connected with at least one of the first node and the second node, the gate-source voltage adjustment circuit is also electrically connected with an adjustment voltage terminal, and the gate-source voltage adjustment circuit is configured to adjust at least one of a voltage of the first node and a voltage of the second node, so as to increase a modulus value of a voltage difference between the control end and the first end of the light-emitting driving circuit.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: May 12, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiangxiang Zou, Cheng Chung Yang, Yinglong Huang, Kuanjun Peng
  • Patent number: 10650753
    Abstract: A pixel circuit, a method for driving the same, a display panel, and a display device are provided. The pixel circuit includes: a drive controlling sub-circuit, a data writing sub-circuit, a light-emission controlling sub-circuit, a first resetting sub-circuit, a second resetting sub-circuit, a charging sub-circuit, a capacitor sub-circuit, and a light-emitting element; and the respective sub-circuits cooperate in operation so that charges in the drive controlling sub-circuit in the pixel circuit can be reset, and driving current of the drive controlling sub-circuit to drive the light-emitting element to emit light can be made dependent upon the voltage of a data signal, and independent of threshold voltage of the drive controlling sub-circuit.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: May 12, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chengchung Yang, Kuanjun Peng, Xueling Gao
  • Publication number: 20200143732
    Abstract: The present application provides a multiple primary color conversion method, including: determining color triangles according to color coordinates of a target color; computing grayscale components of l primary colors corresponding to the target color in the color triangles; in step S130, obtaining initial grayscales of l primary colors; in step S140, judging whether there is an overflow grayscale; if yes, then performing step S160, if no, then performing step S150; in step S150, adjusting initial brightness components corresponding to grayscale components of the same primary color as the overflow grayscale, computing grayscale components of l primary colors in color triangles including the primary color of the overflow grayscale, and performing steps S130 and S140; in step S160, determining the initial grayscales of l primary colors as grayscales of l primary colors of the target color.
    Type: Application
    Filed: November 13, 2018
    Publication date: May 7, 2020
    Inventors: Yanhui XI, Bin DAI, Xiaomang ZHANG, Yan SUN, Haijun NIU, Kuanjun PENG, Yuxin BI, Donghui WANG
  • Publication number: 20200124912
    Abstract: A display panel is provided, including an organic electroluminescent device including an anode layer, a liquid crystal cell on a light exit side of the organic electroluminescent device. The liquid crystal cell includes a liquid crystal layer, a linear polarizer on a side of the liquid crystal cell facing away from the organic electroluminescent device and configured to convert ambient light into a first polarized light, and an electrode assembly configured to control deflection of liquid crystal molecules in the liquid crystal layer to convert reflected light from the anode layer into a second polarized light. A second polarization direction of the second polarized light is different from a first polarization direction of the first polarized light. The display panel may decrease the intensity of reflected light perceived by the user when viewing the displayed image in an ambient environment.
    Type: Application
    Filed: June 3, 2019
    Publication date: April 23, 2020
    Inventors: Wei QIN, Kuanjun PENG, Xiaolong Li, Tieshi WANG, Xueling GAO, Jintao PENG, Shengnan Li
  • Publication number: 20200090591
    Abstract: A pixel driving circuit, a driving method and a display device are provided. The pixel driving circuit includes a driving unit, a capacitor unit, a data write-in unit connected to a corresponding gate line, a corresponding data line and the driving unit, a power source control unit connected to a first light-emitting control end, a power source signal input end and the driving unit, and a first light-emitting control unit connected to a second light-emitting control end, the power source signal input end and the driving unit and configured to, within a predetermined time period of a light-emitting stage, control the power source signal input end to be electrically connected to the driving unit under the control of the second light-emitting control end, stop the operation of the driving unit, and enable the light-emitting unit not to emit light.
    Type: Application
    Filed: April 18, 2019
    Publication date: March 19, 2020
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tieshi WANG, Kuanjun PENG, Wei QIN, Chengchung YANG, Xueling GAO, Xiaolong LI, Zhiqiang XU, Yan WEI, Shengnan LI
  • Publication number: 20200091198
    Abstract: The present disclosure relates to the technical field of display, and discloses an array substrate, a manufacturing method thereof, and a display device. The manufacturing method of the array substrate comprises: forming a first active layer, a material of which is polysilicon; injecting ions at least into an area to be doped of the first active layer to form a doped area, which is utilized to be electrically connected to corresponding source electrode and drain electrode; forming a second active layer, a material of which is an amorphous metal oxide; and after injecting ions at least into the area to be doped of the first active layer and forming the second active layer, performing an activation process to activate the ions injected into the first active layer and to convert the material of the second active layer from an amorphous state to a microcrystalline state.
    Type: Application
    Filed: July 13, 2017
    Publication date: March 19, 2020
    Inventors: Kuanjun Peng, Feng Liao
  • Publication number: 20200074921
    Abstract: A method of adjusting display brightness, a light-emission control circuit and a display device are provided. A method of adjusting display brightness is applied to an light-emission control circuit, where the light-emission control circuit is configured to generate an light-emission control signal configured to control a light-emission of a display device. The method includes: adjusting, in the case that a display brightness of the display device is not within a predetermined brightness range, a duty ratio of the light-emission control signal, to enable the display brightness of the display device to fall into the predetermined brightness range.
    Type: Application
    Filed: April 16, 2019
    Publication date: March 5, 2020
    Inventors: Kuanjun PENG, Chengchung YANG, Zhiqiang XU
  • Publication number: 20200033618
    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: Application
    Filed: June 17, 2019
    Publication date: January 30, 2020
    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: 10534397
    Abstract: Embodiments of the disclosure provide a display panel, a display device and a method for driving the display panel. The display panel includes a substrate and a pixel array disposed on the substrate and comprising M*N pixel units, wherein the M*N pixel units are arranged in a barrel or a pillow-like arrangement, and wherein M and N are positive integers.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: January 14, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaolong Li, Tieshi Wang, Zhiqiang Xu, Wei Qin, Kuanjun Peng