Patents by Inventor Cheng Kai Yu

Cheng Kai Yu 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: 11947208
    Abstract: This invention discloses a display panel including a first substrate, light emitting elements, a touch sensing structure and a conductive layer. The light emitting elements are disposed on the first substrate. The touch sensing structure is disposed on the first substrate and on a side away from a light emitting surface of the light emitting elements. The conductive layer is disposed between the light emitting elements and the first substrate and includes contacts or at least a portion of the touch sensing structure, and the light emitting elements and the contacts are electrically connected.
    Type: Grant
    Filed: August 15, 2022
    Date of Patent: April 2, 2024
    Assignee: HANNSTAR DISPLAY CORPORATION
    Inventors: Jing-Xuan Chen, Cheng-Yen Yeh, Mu-Kai Kang, Sz-Kai Huang, Ming-Chang Yu
  • Patent number: 11892657
    Abstract: An optical system is provided and includes a fixed module, a movable module, a driving coil, a sensing unit and a driving assembly. The fixed module includes an outer frame, and the movable module includes an optical member holder, configured to hold an optical member. The sensing unit is configured to obtain information related to a first rotation angle of the holder when rotating around a first axis relative to the outer frame and a second rotation angle of the optical member holder when rotating around a second axis relative to the outer frame. The driving assembly is for driving the optical member holder to rotate around the first axis or the second axis according to the information related to the first rotation angle and the second rotation angle. The first axis or the second axis is perpendicular to an optical axis of the optical member.
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: February 6, 2024
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Cheng-Kai Yu
  • Patent number: 11892656
    Abstract: An optical system is provided and includes a fixed module, a movable module, a driving coil, a sensing unit and a driving assembly. The fixed module includes an outer frame, and the movable module includes an optical member holder, configured to hold an optical member. The sensing unit is configured to obtain information related to a first rotation angle of the optical member holder when rotating around a first axis relative to the outer frame and a second rotation angle of the optical member holder when rotating around a second axis relative to the outer frame. The driving assembly is for driving the optical member holder to rotate around the first axis or the second axis according to the information related to the first rotation angle and the second rotation angle. The first axis or the second axis is perpendicular to an optical axis of the optical member.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: February 6, 2024
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Cheng-Kai Yu
  • Publication number: 20240004266
    Abstract: An optical element driving mechanism includes a movable portion, a fixed portion, a driving assembly, a guiding assembly, and a metallic member. The movable portion is configured to connect an optical element. The optical element is configured to correspond to light reflected by a reflection element, and the reflection element is configured to change a traveling direction of the light from an incident direction to a first direction. The fixed portion includes a base, and the movable portion is movable relative to the fixed portion. The driving assembly is configured to drive the movable portion to move relative to the fixed portion. The guiding assembly includes a plurality of guiding elements. The metallic member is disposed in the base. When viewed from the incident direction, the metallic member is at least partially located between the guiding elements.
    Type: Application
    Filed: September 19, 2023
    Publication date: January 4, 2024
    Inventors: Cheng-Kai YU, Chen-Hsien FAN, Chao-Chang HU, Shu-Shan CHEN, Chih-Wei WENG
  • Patent number: 11796894
    Abstract: An optical element driving mechanism includes a movable portion, a fixed portion and a driving assembly. The movable portion is configured to connect an optical element having an optical axis. The fixed portion includes a base with a plate structure, wherein the movable portion is movable relative to the fixed portion. The driving assembly is configured to drive the movable portion to move relative to the base. A thickness direction of the base is perpendicular to the optical axis, the base has a recessed structure, and when viewed from the thickness direction of the base, the recessed structure is overlapped with the optical axis.
    Type: Grant
    Filed: April 6, 2022
    Date of Patent: October 24, 2023
    Assignee: TDK TAIWAN CORP.
    Inventors: Cheng-Kai Yu, Chen-Hsien Fan, Chao-Chang Hu, Shu-Shan Chen, Chih-Wei Weng
  • Patent number: 11740538
    Abstract: A lens driving module includes a base, a frame fixedly connected to the base, and a holder configured to connect an optical lens. The holder is movable relative to the base. The lens driving module also includes a reflecting element configured to reflect light from a light incident direction to a first direction. The first direction is perpendicular to the light incident direction, and the first direction is parallel to an optical axis of the optical lens. The lens driving module further includes a first electromagnetic driving assembly configured to force the holder to move along the first direction relative to the base. The lens driving module has multiple recesses formed on the base and arranged along the first direction. The lens driving module includes multiple the rolling elements disposed on the recesses, and the holder is moved relative to the base via the rolling elements.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: August 29, 2023
    Assignee: TDK TAIWAN CORP.
    Inventors: Cheng-Kai Yu, Chen-Hsien Fan, Chao-Chang Hu, Shu-Shan Chen, Chih-Wei Weng
  • Patent number: 11698571
    Abstract: An optical system is provided and includes a light-sensing element, a reflecting unit and a first driving assembly. The reflecting unit includes a reflecting surface, configured to receive an incident light and to reflect a reflecting light. The reflecting light travels into the light-sensing element. The first driving assembly is configured to control the reflecting unit to move along a first axis direction from a first position to a second position, so as to adjust a focus position of the reflecting light on the light-sensing element, wherein the reflecting surface in the first position is parallel to the reflecting surface in the second position, and a distance between a center of the reflecting unit in the first position and the center of the reflecting unit in the second position is not zero.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: July 11, 2023
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Chih-Wei Weng, Cheng-Kai Yu
  • Patent number: 11630319
    Abstract: A lens unit is provided, including a casing, a carrier, an optical lens, a first driving assembly, and a second driving assembly. The carrier is movably disposed in the casing, and the optical lens is disposed on the carrier. The first and second driving assemblies are provided to drive the carrier and the optical lens respectively to move along a first axis and a second axis relative to the casing. Specifically, when viewed along a direction perpendicular to an optical axis of the lens unit, the first and second driving assemblies do not overlap.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: April 18, 2023
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Chen-Hsien Fan, Cheng-Kai Yu, Chih-Wei Weng, Shu-Shan Chen
  • Patent number: 11536983
    Abstract: A thin-plate-typed rotating module includes a rotating element, a driving unit and a base board. The rotating element is rotatable about a first axial direction and a second axial direction in a limited degree. The driving unit connects the rotating element for driving the rotating element to rotate about the first and second axial directions. The base board is furnished with a control module which is connected with the driving unit for controlling the driving unit to operate.
    Type: Grant
    Filed: December 12, 2020
    Date of Patent: December 27, 2022
    Inventors: Cheng Kai Yu, Chao Chang Hu, Chih Wei Weng
  • Patent number: 11428949
    Abstract: An optical element driving mechanism is provided, including: a fixed portion; a movable portion movably connected to the fixed portion and includes a frame and a holder, wherein an optical element having an optical axis is connected to the movable portion; a first driving assembly disposed in the fixed portion to move the movable portion relative to the fixed portion; and a resilient element, including: an outer resilient element, including: a first segment having a strip-shaped structure; a second segment having a strip-shaped structure; and a first bending segment, wherein the first segment connects to the second segment through the first bending segment, and the frame is movably connected to the fixed portion through the outer resilient element; and an inner resilient element, wherein the holder is movably connected to the frame through the inner resilient element.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: August 30, 2022
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Cheng-Kai Yu
  • Patent number: 11428909
    Abstract: A camera system including a telephoto lens module is provided. The telephoto lens module includes a first image sensor, a first assembly, and a second assembly. The first assembly includes a first driving mechanism and a reflecting member connected to the first driving mechanism. The first driving mechanism is configured to drive the reflecting member to rotate around a first axis and a second axis. The second assembly is disposed between the first assembly and the first image sensor, including a second driving mechanism and a first lens. The second driving mechanism is configured to drive the first lens to move along a third axis. The first, second, and third axes are not parallel to each other. When light enters the telephoto lens along the first axis, light is reflected by the reflecting member and through the first lens along the third axis to the first image sensor.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: August 30, 2022
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Chen-Hsien Fan, Cheng-Kai Yu, Chih-Wei Weng, Shu-Shan Chen
  • Patent number: 11397370
    Abstract: An optical member driving mechanism includes a movable portion, a fixed portion, a driving assembly, and a guiding assembly. The movable portion is configured to connect an optical lens, which has an optical axis. The fixed portion includes a base, wherein the base has a base surface. The movable portion is movable relative to the fixed portion, and the base surface faces the movable portion and is parallel to the optical axis. The driving assembly is configured to force the movable portion to move relative to the fixed portion. The movable portion is movable relative to the fixed portion via the guiding assembly. When viewed in a first direction that is perpendicular to the base surface, the optical axis does not overlap the driving assembly, and the optical axis does not overlap the guiding assembly.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: July 26, 2022
    Assignee: TDK TAIWAN CORP.
    Inventors: Cheng-Kai Yu, Chen-Hsien Fan, Chao-Chang Hu, Shu-Shan Chen, Chih-Wei Weng
  • Publication number: 20220229348
    Abstract: An optical element driving mechanism includes a movable portion, a fixed portion and a driving assembly. The movable portion is configured to connect an optical element having an optical axis. The fixed portion includes a base with a plate structure, wherein the movable portion is movable relative to the fixed portion. The driving assembly is configured to drive the movable portion to move relative to the base. A thickness direction of the base is perpendicular to the optical axis, the base has a recessed structure, and when viewed from the thickness direction of the base, the recessed structure is overlapped with the optical axis.
    Type: Application
    Filed: April 6, 2022
    Publication date: July 21, 2022
    Inventors: Cheng-Kai YU, Chen-Hsien FAN, Chao-Chang HU, Shu-Shan CHEN, Chih-Wei WENG
  • Patent number: 11320629
    Abstract: A driving mechanism for supporting an optical member is provided, including a fixed module, a movable module, a driving module disposed therebetween, and an elastic member. The driving module can drive the movable module to rotate around a first rotation axis relative to the fixed module. The elastic member includes a first connecting portion connected to the movable module, a second connecting portion connected to the fixed module, a first string portion connected to the first connecting portion, and a first buffer portion connected to the first string portion. The first string portion is disposed on the first rotation axis. The longitudinal axis of the first string portion is parallel to the first rotation axis. The first buffer portion has wave-shaped structure.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: May 3, 2022
    Assignee: TDK TAIWAN CORP.
    Inventors: Liang-Ting Ho, Cheng-Kai Yu, Chao-Chang Hu, Chih-Wei Weng, Che-Wei Chang
  • Patent number: 11300759
    Abstract: An optical member driving module is provided, including a moving mechanism, a base, a suspension wire, and an electromagnetic driving mechanism for driving the moving mechanism to move relative to the base. The moving mechanism includes an optical member holder, and the base has a first surface, a second surface, and an opening. The second surface faces the optical member holder and is opposite to the first surface. The opening extends from the first surface to the second surface. The suspension wire extends through the opening, and the opposite ends of the suspension wire are respectively affixed to the first surface and the moving mechanism.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: April 12, 2022
    Assignee: TDK Taiwan Corp.
    Inventors: Cheng-Kai Yu, Yi-Ho Chen, Chao-Chang Hu, Sin-Jhong Song
  • Patent number: 11294172
    Abstract: An optical element driving mechanism includes a fixed module, a movable module, an optical element, a first sensing magnet, and a first sensing element. The movable module is movably connected to the fixed module. The optical element is disposed on the movable module. The first sensing magnet is disposed corresponding to the optical element, and has a polar direction. The first sensing element is disposed corresponding to the first sensing magnet for sensing displacement of the first sensing magnet relative to the fixed module in a first direction, wherein the first direction is perpendicular to the polar direction.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: April 5, 2022
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Shu-Shan Chen, Cheng-Kai Yu
  • Patent number: 11256066
    Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, a magnetic sensed assembly, a first sensing element, and a magnetically permeable element. The movable portion is connected to an optical element which corresponds to incident light. The movable portion is movably connected to the fixed portion. The magnetic sensed assembly includes a first sensed portion having a first magnetic polar direction. The first sensing element is corresponding to the magnetic sensed assembly and is used to detect the rotation of the movable portion relative to the fixed portion, with a first rotational axis extending in a first direction that is different from an incident direction of the incident light and the first magnetic polar direction. The magnetically permeable element is corresponding to the first sensing magnet.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: February 22, 2022
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Shu-Shan Chen, Cheng-Kai Yu
  • Publication number: 20220011649
    Abstract: A lens driving module includes a base, a frame fixedly connected to the base, and a holder configured to connect an optical lens. The holder is movable relative to the base. The lens driving module also includes a reflecting element configured to reflect light from a light incident direction to a first direction. The first direction is perpendicular to the light incident direction, and the first direction is parallel to an optical axis of the optical lens. The lens driving module further includes a first electromagnetic driving assembly configured to force the holder to move along the first direction relative to the base. The lens driving module has multiple recesses formed on the base and arranged along the first direction. The lens driving module includes multiple the rolling elements disposed on the recesses, and the holder is moved relative to the base via the rolling elements.
    Type: Application
    Filed: September 24, 2021
    Publication date: January 13, 2022
    Inventors: Cheng-Kai YU, Chen-Hsien FAN, Chao-Chang HU, Shu-Shan CHEN, Chih-Wei WENG
  • Patent number: 11159080
    Abstract: An electromagnetic driving module is provided, including a first member, a second member movably connected to the first member, an electromagnetic driving assembly, and a film. The electromagnetic driving assembly includes a magnet and a coil respectively disposed on the first and second members, so as to move the second member relative to the first member. The film is disposed on a side of the magnet to reduce magnetic interference between the magnet and a magnetic element, wherein the magnetic permeability of the film is higher than the magnetic permeability of the first member.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: October 26, 2021
    Assignee: TDK TAIWAN CORP.
    Inventors: Cheng-Kai Yu, Liang-Ting Ho, Shu-Shan Chen, Chao-Chang Hu
  • Publication number: 20210223565
    Abstract: An optical system is provided and includes a fixed module, a movable module, a driving coil, a sensing unit and a driving assembly. The fixed module includes an outer frame, and the movable module includes an optical member holder, configured to hold an optical member. The sensing unit is configured to obtain information related to a first rotation angle of the optical member holder when rotating around a first axis relative to the outer frame and a second rotation angle of the optical member holder when rotating around a second axis relative to the outer frame. The driving assembly is for driving the optical member holder to rotate around the first axis or the second axis according to the information related to the first rotation angle and the second rotation angle. The first axis or the second axis is perpendicular to an optical axis of the optical member.
    Type: Application
    Filed: April 6, 2021
    Publication date: July 22, 2021
    Inventors: Chao-Chang HU, Cheng-Kai YU