Patents by Inventor Dafei WEN

Dafei WEN 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).

  • Patent number: 10540037
    Abstract: Embodiments of the present application provide a force detection method, a force detection apparatus and an electronic terminal thereof. The force detection method includes: acquiring an output electrical signal of a voltage dividing capacitor formed between a driving electrode and a force sensing electrode, and an output electrical signal of a force detecting capacitor formed between the force sensing electrode and a reference electrode, determining force feature data when a force is applied to the force sensing electrode based on the output electrical signal of the voltage dividing capacitor and the output electrical signal of the force detecting capacitor.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: January 21, 2020
    Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
    Inventors: Leigang Cheng, Dafei Wen
  • Patent number: 10338720
    Abstract: A pressure detection structure and a touch device are disclosed. The structure is mounted on a middle frame of the touch device and includes a cover, a display device and a pressure sensor. The display device is arranged below the cover, and includes a display module. The pressure sensor is arranged in the display device; any electrically conductive member in the display device or the middle frame which is electrically conductive is used as a reference electrode; and a variable gap is present between the pressure sensor and the reference electrode, and the pressure sensor outputs a pressure signal according to variation of capacitance between a sensing electrode thereof and the reference electrode. According to the present application, pressure detection may be carried out accurately, and thus reliability of products is enhanced.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: July 2, 2019
    Assignee: Shenzhen Goodix Technology Co., Ltd.
    Inventors: Dafei Wen, Wu Liu, Rui Ran
  • Patent number: 10180363
    Abstract: The present application discloses a pressure detection structure and a terminal device. The pressure detection structure includes a cover, a display screen, a pressure sensor and a middle frame, the display screen and the cover being sequentially stacked in the middle frame from bottom to top; wherein: the pressure sensor is fixed to the display screen; the display screen includes a lower glass layer, an LED light emitting layer and an upper glass layer which are sequentially stacked from bottom to top; and the pressure sensor is positioned beneath the lower glass layer. Thus, the tolerance to be controlled mainly lies in the thickness of the gap layer inside the display screen, and the flatness of the pressure sensor. Hence, the assembling tolerance is reduced, and the stability, reliability and consistency of pressure detection by the terminal device are improved.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: January 15, 2019
    Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
    Inventors: Dafei Wen, Rui Ran
  • Publication number: 20180232096
    Abstract: Embodiments of the present application provide a force detection method, a force detection apparatus and an electronic terminal thereof. The force detection method includes: acquiring an output electrical signal of a voltage dividing capacitor formed between a driving electrode and a force sensing electrode, and an output electrical signal of a force detecting capacitor formed between the force sensing electrode and a reference electrode, determining force feature data when a force is applied to the force sensing electrode based on the output electrical signal of the voltage dividing capacitor and the output electrical signal of the force detecting capacitor.
    Type: Application
    Filed: March 27, 2018
    Publication date: August 16, 2018
    Inventors: Leigang CHENG, Dafei WEN
  • Publication number: 20170343428
    Abstract: The present application discloses a pressure detection structure and a terminal device. The pressure detection structure includes a cover, a display screen, a pressure sensor and a middle frame, the display screen and the cover being sequentially stacked in the middle frame from bottom to top; wherein: the pressure sensor is fixed to the display screen; the display screen includes a lower glass layer, an LED light emitting layer and an upper glass layer which are sequentially stacked from bottom to top; and the pressure sensor is positioned beneath the lower glass layer. Thus, the tolerance to be controlled mainly lies in the thickness of the gap layer inside the display screen, and the flatness of the pressure sensor. Hence, the assembling tolerance is reduced, and the stability, reliability and consistency of pressure detection by the terminal device are improved.
    Type: Application
    Filed: August 11, 2017
    Publication date: November 30, 2017
    Inventors: Dafei Wen, Rui Ran
  • Publication number: 20170269758
    Abstract: A pressure detection structure and a touch device are disclosed. The structure is mounted on a middle frame of the touch device and includes a cover, a display device and a pressure sensor. The display device is arranged below the cover, and includes a display module. The pressure sensor is arranged in the display device; any electrically conductive member in the display device or the middle frame which is electrically conductive is used as a reference electrode; and a variable gap is present between the pressure sensor and the reference electrode, and the pressure sensor outputs a pressure signal according to variation of capacitance between a sensing electrode thereof and the reference electrode. According to the present application, pressure detection may be carried out accurately, and thus reliability of products is enhanced.
    Type: Application
    Filed: June 5, 2017
    Publication date: September 21, 2017
    Inventors: Dafei WEN, Wu LIU, Rui RAN