Patents by Inventor Chunjun Ma

Chunjun Ma 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: 20240069604
    Abstract: The electronic device includes a folding apparatus and a flexible display. The folding apparatus is configured to bear the flexible display. An elastic component of the folding apparatus may transfer an elastic force to the flexible display by using a housing of the folding apparatus. A force that is away from a main shaft and that is applied to the flexible display when the electronic device is in a flattened state is greater than a force that is away from the main shaft and that is applied to the flexible display when the electronic device is in a closed state.
    Type: Application
    Filed: August 10, 2021
    Publication date: February 29, 2024
    Inventors: Zhengyi Xu, Chunjun Ma, Linhui Niu, Ting Liu, Yunyong Li, Gangchao Wang, Chenghao Guan
  • Publication number: 20230403347
    Abstract: This application discloses a folding mechanism and an electronic device. The folding mechanism is applied to a housing apparatus of an electronic device, and is configured to connect two housings of the housing apparatus. The folding mechanism can form display accommodating space through automatic avoidance in a folding process, and a flexible display is accommodated in the display accommodating space, so that a folding action performed by the housing apparatus on the flexible display is stable, and a squeezing force is small. This helps reduce a risk that the flexible display is damaged due to excessive squeezing of the folding mechanism, and makes the flexible display more reliable.
    Type: Application
    Filed: October 27, 2021
    Publication date: December 14, 2023
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ting Liu, Chunjun Ma, Linhui Niu, Zhengyi Xu, Yunyong Li
  • Publication number: 20230229189
    Abstract: A rotation mechanism, includes a middle housing (1), a first support (2) and a second support (3), a first end of the first support is rotatably connected to the middle housing, and a second end of the first support is fixedly connected to a first housing; a first end of the second support is rotatably connected to the middle housing, and a second end of the second support is fixedly connected to a second housing.
    Type: Application
    Filed: June 15, 2021
    Publication date: July 20, 2023
    Inventors: Yunyong Li, Chunjun Ma, Zhengyi Xu, Linhui Niu, Ting Liu, Gangchao Wang
  • Publication number: 20230171334
    Abstract: A rotating mechanism includes a main shaft assembly, a first fixed bracket, a second fixed bracket, a first transmission arm, a first rotating arm, a second transmission arm, and a second rotating arm. One end of the first transmission arm is slidably connected to the second fixed bracket, and the other end of the first transmission arm is a rotating end and is rotatably connected to the main shaft assembly. Two ends of the first rotating arm are rotatably connected to the first transmission arm and the first fixed bracket respectively. One end of the second transmission arm is slidably connected to the first fixed bracket, and the other end of the second transmission arm is rotatably connected to the main shaft assembly. Two ends of the second rotating arm are rotatably connected to the second transmission arm and the second fixed bracket respectively.
    Type: Application
    Filed: April 15, 2021
    Publication date: June 1, 2023
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Zhengyi Xu, Chunjun Ma, Linhui Niu, Ting Liu, Gangchao Wang
  • Publication number: 20230075646
    Abstract: A rotating mechanism includes a main shaft assembly, a first fastening bracket, a first transmission arm, a first rotation arm, a first support plate, a second fastening bracket, a second transmission arm, a second rotation arm, and a second support plate. One end of the first transmission arm is slidably connected to the first fastening bracket, and the other end is rotatably connected to the main shaft assembly. Two ends of the first rotation arm are rotatably connected to the first fastening bracket and the main shaft assembly respectively.
    Type: Application
    Filed: April 15, 2021
    Publication date: March 9, 2023
    Inventors: Linhui Niu, Chunjun Ma, Zhengyi Xu, Ting Liu, Yungyong Li, Gangchao Wang
  • Publication number: 20220352483
    Abstract: A display assembly includes a screen assembly, a rigid cover plate, and a supporting member. The screen assembly includes a flexible display and a flexible cover plate which covers the flexible display. An edge of the flexible display has a first extending part and an arc-shaped outer surface of the first extending part. An edge of the flexible cover plate has a second extending part, an inner surface of the second extending part is an arc-shaped surface, the arc-shaped surface of the outer surface of the first extending part matches the arc-shaped surface of the inner surface of the second extending part, and the second extending part covers the first extending part. An edge of the supporting member has a first side surface that is an arc-shaped surface, the arc-shaped surface of the first side surface matches an arc-shaped surface of an inner surface of the first extending part.
    Type: Application
    Filed: August 4, 2020
    Publication date: November 3, 2022
    Inventors: Chunjun Ma, Jian Xie, Zhangmin Bao, Yin Li, Bo Liu
  • Publication number: 20220295655
    Abstract: A composite structure includes a first layer and a second layer that are stacked, the first layer is configured to connect the second layer and a flexible display, and the second layer is configured to dissipate heat. Each of the first layer and the second layer includes a first surface and a second surface opposite to each other, where the first surface of the first layer is proximate to the flexible display, and the first surface of the second layer is proximate to the second surface of the first layer. An elastic modulus of the first layer is greater than or equal to an elastic modulus of the second layer, and a coefficient of thermal conductivity of the first layer is less than or equal to a coefficient of thermal conductivity of the second layer.
    Type: Application
    Filed: July 21, 2020
    Publication date: September 15, 2022
    Inventors: Xu Zhu, Wei Li, Chunjun Ma
  • Publication number: 20220261040
    Abstract: A rotating mechanism includes: a rotating shaft; a first mechanical part, where the first mechanical part is provided with a first slide groove; a second mechanical part, where the second mechanical part is provided with a second slide groove; a third mechanical part, where the third mechanical part is disposed in the first slide groove, and one end of the third mechanical part is rotatably connected to the rotating shaft; and a fourth mechanical part, where the fourth mechanical part is disposed in the second slide groove, and one end of the fourth mechanical part is rotatably connected to the rotating shaft. When the first mechanical part and the second mechanical part rotate around the rotating shaft, the third mechanical part slides with respect to the first slide groove.
    Type: Application
    Filed: July 21, 2020
    Publication date: August 18, 2022
    Inventors: Yong Liu, Hideo Kato, Yu Liu, Chunjun Ma, Lexiong Peng, Zhong Li
  • Publication number: 20220217857
    Abstract: A supporting structure that supports a flexible screen includes planar supporting portions and a bending supporting portion. The bending supporting portion includes a bending skeleton and a flexible supporting bar coupled to the bending skeleton, and the flexible supporting bar is in direct contact with the flexible screen. The flexible supporting bar includes a supporting portion and a plurality of connecting portions that are distributed at intervals and fastened to the supporting portion. The supporting portion is coupled to the flexible screen. The connecting portions are located on a side of the supporting portion away from the flexible screen, and an end of each of the plurality of connecting portions away from the supporting portion is coupled to the bending skeleton.
    Type: Application
    Filed: April 21, 2020
    Publication date: July 7, 2022
    Inventors: Yin Li, Chunjun Ma
  • Publication number: 20220075415
    Abstract: A foldable electronic device, including: a foldable screen, where the foldable screen is made of a plurality of layers of materials; and a first housing and a second housing, where the first housing and the second housing are connected by using a folding shaft, traction mechanisms are disposed on the first housing and the second housing, an outermost layer of the foldable screen is fixedly connected to the first housing and the second housing, an innermost layer of the foldable screen is fixedly connected to the traction mechanisms, the traction mechanisms slide on the first housing and the second housing along a first direction, the traction mechanisms are configured to drag the layers of the foldable screen to be dislocated mutually, and the first direction is a direction perpendicular to the folding shaft.
    Type: Application
    Filed: November 15, 2021
    Publication date: March 10, 2022
    Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
    Inventors: Jianbo Ran, Wen Fan, Chunjun Ma, Tao Huang
  • Publication number: 20210014347
    Abstract: This application provides a mobile terminal which includes two housings that are rotatably connected, and a flexible screen component fastened to the two housings, wherein the flexible screen component is fastened to two groups of position-limiting components, one group of sliding slots is disposed on each housing, the two groups of position-limiting components are respectively located in two groups of sliding slots in a one-to-one correspondence, and the two groups of position-limiting components are configured to limit a relative vertical distance between the flexible screen component and the housings.
    Type: Application
    Filed: February 6, 2020
    Publication date: January 14, 2021
    Inventors: Chunjun Ma, Yu Liu, Jian Xie, Zheng Li, Zhangmin Bao, Chunyuan Fang