Patents by Inventor Gun-Wook Yoon

Gun-Wook Yoon 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: 11774645
    Abstract: The present invention relates to a diffuser and a method of manufacturing the same, and more particularly, to a diffuser and a method of manufacturing the same, in which light emitted through the diffuser forms an asymmetric light output pattern. A diffuser according to an exemplary embodiment is a diffuser that forms an asymmetric light output pattern by diffusing laser beams received from a laser source, the diffuser including: a base; and a micro lens array disposed on the base, in which the micro lens array has a plurality of micro lenses each comprising a lower surface and a curved surface disposed on the lower surface, and the lower surface has horizontal and vertical lengths different from each other.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: October 3, 2023
    Inventors: Keun-Seo Lim, Gun-Wook Yoon, Shin-Ae Hwang, Seokyoon Yoon
  • Publication number: 20210003750
    Abstract: The present invention relates to a diffuser and a method of manufacturing the same, and more particularly, to a diffuser and a method of manufacturing the same, in which light emitted through the diffuser forms an asymmetric light output pattern. A diffuser according to an exemplary embodiment is a diffuser that forms an asymmetric light output pattern by diffusing laser beams received from a laser source, the diffuser including: a base; and a micro lens array disposed on the base, in which the micro lens array has a plurality of micro lenses each comprising a lower surface and a curved surface disposed on the lower surface, and the lower surface has horizontal and vertical lengths different from each other.
    Type: Application
    Filed: May 29, 2020
    Publication date: January 7, 2021
    Applicant: .
    Inventors: Keun-Seo LIM, Gun-Wook YOON, Shin-Ae HWANG, Seokyoon YOON
  • Patent number: 9989689
    Abstract: A backlight unit may be provided which is capable of local dimming. The backlight unit includes: one or a plurality of light emitting devices; and a light guide plate including a top surface and a bottom surface, one or a plurality of grooves which are formed in the bottom surface and in which the light emitting device is disposed, a reflective layer which is disposed within the one or the plurality of grooves and reflects light emitted from the light emitting device, and a plurality of inverse prism patterns disposed in the top surface.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: June 5, 2018
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Jun-Bo Yoon, Seok-Won Bae, Gun-Wook Yoon
  • Publication number: 20170097456
    Abstract: A backlight unit may be provided which is capable of local dimming. The backlight unit includes: one or a plurality of light emitting devices; and a light guide plate including a top surface and a bottom surface, one or a plurality of grooves which are formed in the bottom surface and in which the light emitting device is disposed, a reflective layer which is disposed within the one or the plurality of grooves and reflects light emitted from the light emitting device, and a plurality of inverse prism patterns disposed in the top surface.
    Type: Application
    Filed: February 16, 2016
    Publication date: April 6, 2017
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Jun-Bo YOON, Seok-Won Bae, Gun-Wook Yoon