Patents by Inventor Zhenfei Cai

Zhenfei Cai 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: 20240029669
    Abstract: The present disclosure provides a three-dimensional (3D) display system and a display method of the 3D display system. The 3D display system includes a display device and 3D glasses, the display device includes a plurality of first micro light emitting diodes, a plurality of second micro light emitting diodes, and a plurality of third micro light emitting diodes which are uniformly distributed. The 3D glasses include a first lens and a second lens. The first micro light emitting diodes and the second micro light emitting diodes are alternately turned on, the third micro light emitting diodes are turned off, or the third micro light emitting diodes and the second micro light emitting diodes are simultaneously turned on.
    Type: Application
    Filed: August 9, 2021
    Publication date: January 25, 2024
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Zhenfei Cai
  • Patent number: 11882718
    Abstract: A display panel and a display device are provided. The display panel includes a display region and a non-display region surrounding the display region. In the present invention, a monitoring portion is disposed in the non-display region of the display panel, and a plurality of light-emitting elements are disposed in a frame packaging region. By observing light-emitting conditions of the light emitting elements at different distances from the display region of the display panel, packaging effects of different packaging structures can be effectively detected.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: January 23, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Zhenfei Cai
  • Publication number: 20230422580
    Abstract: A display module, a manufacturing process thereof, and a display device are provided. In the manufacturing process of the display module, a substrate glass of a display panel is thinned to form an ultra-thin glass with a predetermined thickness, which replaces a conventional polyimide (PI) flexible film layer that is used to support the panel, and thus a laser lift-off process is not required to separate the substrate glass and the PI flexible film layer. It solves a problem that a laser is required to peel the substrate glass and a peeling effect is not good in current manufacturing process of a flexible OLED display screen.
    Type: Application
    Filed: December 28, 2020
    Publication date: December 28, 2023
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Zhenfei Cai
  • Patent number: 11719989
    Abstract: The present invention provides a display panel and an electrical apparatus. The display panel includes: at least one displaying region, the displaying region including a plurality of pixel points; at least one light transmission region, the light transmission region disposed alternately with the displaying region, and the light transmission region including light transmission thin films laminated. The light transmission region further includes a light transmittance adjustment layer located between any adjacent two of the light transmission thin films.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: August 8, 2023
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Zhenfei Cai
  • Patent number: 11527577
    Abstract: The present invention provides an array substrate and a display panel. The array substrate includes a pixel structure. The pixel structure includes a plurality of pixel units. Each of the plurality of pixel units includes a first sub-pixel, a second sub-pixel, and a third sub-pixel connected in pairs and arranged in a honeycomb pattern, which facilitates spread of printed ink droplets and increases uniformity of light emission of sub-pixels. Each of the plurality of pixel units adopts an arrangement of RB1B2G or RB1GB2. Two columns of blue sub-pixels are alternately used to balance a problem of short lifetime of blue sub-pixel.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: December 13, 2022
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Zhenfei Cai
  • Patent number: 11462160
    Abstract: An organic light emitting diode (OLED) display panel and a display device are provided. A first pixel driving circuit of the is configured to compensate a threshold voltage of a drive transistor in the bending area during a first time period before starting up or a second time period after shutting down. A second pixel driving circuit is configured to compensate a threshold voltage of a drive transistor in the non-bending area during a blank time period between adjacent display frames. A duration of the first time period and a duration of the second time period are both greater than a duration of the blank time period. A brightness of the display panel is uniform.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: October 4, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Zhenfei Cai
  • Publication number: 20220302409
    Abstract: A display panel and a display device are provided. The display panel includes a display region and a non-display region surrounding the display region. In the present invention, a monitoring portion is disposed in the non-display region of the display panel, and a plurality of light-emitting elements are disposed in a frame packaging region. By observing light-emitting conditions of the light emitting elements at different distances from the display region of the display panel, packaging effects of different packaging structures can be effectively detected.
    Type: Application
    Filed: August 12, 2020
    Publication date: September 22, 2022
    Inventor: Zhenfei CAI
  • Patent number: 11417712
    Abstract: An array substrate, a display panel, and a method of manufacturing the array substrate are provided. The display panel includes the array substrate. The array substrate is provided with a light transmitting region and a capacitor region, and includes a substrate, a driving circuit layer, a second conductive layer, a passivation layer, a color filter, an anode layer, light emitting layer, and cathode layer, which are sequentially disposed from bottom to top.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: August 16, 2022
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Zhenfei Cai
  • Publication number: 20220189359
    Abstract: The present invention provides a shift register unit, a gate driving circuit, and a display panel. The shift register unit includes: a pull-up control module connected to an output end of an (n?1)th-stage scanning signal, a first node, and a third node; a pull-up module connected to a first clock signal, the first node, and an output end of a present-stage scanning signal; a leakage-proof module connected to the first clock signal and the third node.
    Type: Application
    Filed: May 22, 2020
    Publication date: June 16, 2022
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Zhenfei Cai
  • Publication number: 20220189396
    Abstract: An organic light emitting diode (OLED) display panel and a display device are provided. A first pixel driving circuit of the is configured to compensate a threshold voltage of a drive transistor in the bending area during a first time period before starting up or a second time period after shutting down. A second pixel driving circuit is configured to compensate a threshold voltage of a drive transistor in the non-bending area during a blank time period between adjacent display frames. A duration of the first time period and a duration of the second time period are both greater than a duration of the blank time period. A brightness of the display panel is uniform.
    Type: Application
    Filed: June 10, 2020
    Publication date: June 16, 2022
    Inventor: Zhenfei CAI
  • Patent number: 11362156
    Abstract: The present invention discloses a pixel unit, a manufacturing method, and a display device. The pixel unit includes a first positive electrode layer, a first pixel definition layer disposed on the first positive electrode layer, a second positive electrode layer disposed on the first pixel definition layer, and a second pixel definition layer disposed on the second positive electrode layer such that the first positive electrode layer and the second positive electrode layer are driven individually. The present invention, by employing two anode driving voltages in the same sub-pixel, drives two parts of a light emitting material individually to improve a brightness in a central region such that the entire pixel emits light evenly.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: June 14, 2022
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Zhenfei Cai
  • Patent number: 11348975
    Abstract: An organic light-emitting diode display substrate, a manufacturing method of the same, and an organic light-emitting diode display device are disclosed by the application. The display substrate comprises a substrate, and the substrate comprises a light-emitting region and nonlight-emitting region, wherein the light-emitting region comprises a plurality of data lines and a plurality of scan lines which are arranged in rows and columns respectively and perpendicular to each other and a plurality of pixel unit regions defined by the plurality of data lines and the plurality of scan lines, wherein each of the pixel unit regions comprises a plurality of sub-pixels, the scan lines of each of the sub-pixels in adjacent pixel unit regions of the same row are merged between the adjacent pixel unit regions, and the data lines in adjacent pixel unit regions of the same column are merged between the adjacent pixel unit regions.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: May 31, 2022
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Zhenfei Cai
  • Patent number: 11342324
    Abstract: The present application provides a low-leakage static electricity releasing circuit, a display panel and a display device. T1, T2 and T3 that are connected in series are taken as a first group. T4, T5 and T6 that are connected in series are taken as a second group. The first group and the second group serve as releasing paths for static electricity with negative voltages and static electricity with positive voltages, respectively. When one of the groups releases the static electricity, the other group has small current leakage. This reduces the affection of a static electricity releasing circuit on the voltage of a signal line due to the current leakage, and is applicable to static electricity releasing for foldable areas of a flexible, foldable display screen.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: May 24, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Zhenfei Cai
  • Patent number: 11329259
    Abstract: A display panel and method of fabricating thereof. The display panel includes a capacitor structure, a first plate of the capacitor structure includes an active region and a light shielding metal layer which are electrically connected, and a second plate of the capacitor structure includes an anode and a capacitor metal layer which are electrically connected. The anode and the active region are disposed correspondingly, and at least two insulating layers are disposed between the anode and the active region, the light shielding metal layer and the capacitor metal layer are disposed correspondingly, and at least two insulating layers are disposed between the light shielding metal layer and the capacitor metal layer.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: May 10, 2022
    Inventor: Zhenfei Cai
  • Patent number: 11315960
    Abstract: A thin film transistor structure and a manufacturing method thereof, a circuit structure, a display substrate and a display device are provided. The thin film transistor structure includes: a base plate, and a first thin film transistor and a second thin film transistor stacked on the base plate. The first thin film transistor and the second thin film transistor share a same active layer.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: April 26, 2022
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Can Yuan, Zhenfei Cai, Yongqian Li, Pan Xu, Zhidong Yuan, Meng Li, Xuehuan Feng
  • Patent number: 11307467
    Abstract: An electrostatic discharge circuit and a display panel. The electrostatic discharge circuit includes a first conductive path and a second conductive path. An input end of the first conductive path is connected to a data signal of the display panel, and an output end is connected to a first power voltage for releasing positive charge accumulated in the display panel. An input end of the second conductive path is connected to the data signal of the display panel, and an output end is connected to a second power voltage for releasing negative charges accumulated in the display panel.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: April 19, 2022
    Inventor: Zhenfei Cai
  • Patent number: 11257428
    Abstract: The present disclosure provides a mixed compensation pixel circuit, control method, and display device, the mixed compensation pixel circuit includes an internal compensation circuit and an external compensation circuit. The internal compensation circuit includes a first thin film transistor, a second thin film transistor, a third thin transistor, and a fourth thin transistor, the external compensation circuit includes a fifth thin transistor. By optimizing the pixel circuit architecture, the present disclosure does not have an NTFT with a positive long-term relative voltage, improves the stability of the circuit, simplifies the compensation process, and improves the accuracy of compensation.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: February 22, 2022
    Inventor: Zhenfei Cai
  • Patent number: 11257888
    Abstract: A display panel and a method of fabricating a thin film transistor. The display panel includes a plurality of data writing thin film transistors. Each of the data writing thin film transistors includes a substrate, a light shielding metal layer, a buffer layer, an active region, a gate dielectric layer, and a gate metal layer. The active region includes a channel region and a source region and a drain region on both sides of the channel region. The data writing thin film transistor further includes a first via hole penetrating the gate dielectric layer and the buffer layer, and the gate metal layer is electrically connected to the light shielding metal layer through the first via hole.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: February 22, 2022
    Inventor: Zhenfei Cai
  • Patent number: 11238767
    Abstract: Embodiments of the present disclosure provide an array substrate, a display device. The array substrate comprises first power lines and second power lines disposed on a substrate, wherein the first power line crosses the second power line to define a pixel region, wherein the first power lines crosses the second power lines at intersection points, and the intersection points include a first intersection point where the first power line is electrically connected to the second power line and a second intersection point where the first power line is insulated from the second power line are insulated; the first intersection points for each of the first power supply lines and/or the first intersection points for each of the second power supply lines are distributed at intervals.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: February 1, 2022
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Can Yuan, Zhidong Yuan, Yongqian Li, Zhenfei Cai, Meng Li, Xuehuan Feng
  • Patent number: 11222565
    Abstract: The present application discloses a shift register, a gate driving circuit and a driving method thereof, and a display apparatus. The shift register includes an input sub-circuit, an output sub-circuit, a reset control sub-circuit, a pull-up node reset sub-circuit, and an output signal reset sub-circuit; the input sub-circuit is configured to pre-charge the pull-up node under the control of a signal input to the first signal input terminal; the output sub-circuit is configured to output, through the signal output terminal, a signal input to the first clock signal input terminal under the control of a potential of the pull-up node; the reset control sub-circuit is configured to control, under the control of a reset signal input to the second signal input terminal, whether the pull-up node reset sub-circuit and the output signal reset sub-circuit operate to reset the pull-up node and the signal output terminal, respectively.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: January 11, 2022
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xuehuan Feng, Xing Zhang, Qi Hu, Pan Xu, Yongqian Li, Meng Li, Zhidong Yuan, Zhenfei Cai, Can Yuan