Patents by Inventor Kim Hee Cheol

Kim Hee Cheol 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).

  • Light guide plate, having quantum dot layer
    Patent number: 9995868
    Abstract: The present invention discloses a light guide plate, a backlight module and a display device, so as to solve the technical problem of color shift generated in prior art display panel due to the change of angle of view. The light guide plate comprises a bottom surface, a light exiting surface opposite to the bottom surface, and a quantum dot layer provided on the light exiting surface and comprising a quantum dot array, wherein the light exiting surface has a non-planar structure. Embodiments of the present invention provide following advantageous effects: the quantum dots on the surface of the light guide plate are configured to have a non-planar structure, such that the light transmitted through the spacing between quantum dots and having the same spectrum as the quantum dots is smoothly changed, thereby reducing the affection of color shift of the display device due to the change of angle of view.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: June 12, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kim-Hee Cheol, Song-Young Suk, Yoo-Seong Yeol, Choi-Seung Jin
  • Light guide plate, backlight assembly and transparent display
    Patent number: 9507073
    Abstract: The present invention discloses a light guide plate for a backlight assembly of a transparent display, the backlight assembly and the transparent display.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: November 29, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kim Hee Cheol, Song Young Suk, Yoo Seong Yeol, Choi Seung Jin
  • LIGHT GUIDE PLATE, BACKLIGHT MODULE, AND DISPLAY DEVICE
    Publication number: 20150378082
    Abstract: The present invention discloses a light guide plate, a backlight module and a display device, so as to solve the technical problem of color shift generated in prior art display panel due to the change of angle of view. The light guide plate comprises a bottom surface, a light exiting surface opposite to the bottom surface, and a quantum dot layer provided on the light exiting surface and comprising a quantum dot array, wherein the light exiting surface has a non-planar structure. Embodiments of the present invention provide following advantageous effects: the quantum dots on the surface of the light guide plate are configured to have a non-planar structure, such that the light transmitted through the spacing between quantum dots and having the same spectrum as the quantum dots is smoothly changed, thereby reducing the affection of color shift of the display device due to the change of angle of view.
    Type: Application
    Filed: August 28, 2014
    Publication date: December 31, 2015
    Inventors: Kim-Hee Cheol, Song-Young Suk, Yoo-Seong Yeol, Choi-Seung Jin
  • LIGHT GUIDE PLATE, BACKLIGHT ASSEMBLY AND TRANSPARENT DISPLAY
    Publication number: 20150260899
    Abstract: The present invention discloses a light guide plate for a backlight assembly of a transparent display, the backlight assembly and the transparent display.
    Type: Application
    Filed: June 26, 2014
    Publication date: September 17, 2015
    Inventors: Kim Hee Cheol, Song Young Suk, Yoo Seong Yeol, Choi Seung Jin