Patents by Inventor Cheng-Tsung Li

Cheng-Tsung Li 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: 11294117
    Abstract: An electronic device with a display screen includes a first body and a first display screen. The first body has an operation surface, the operation surface has a first side and a second side opposite to the first side, and the first side is defined as a user side. The first display screen is disposed in the first body, and the operation surface exposes the first display screen. The first display screen includes a backlight module and a display panel. The backlight module includes a light guide plate, a light source, and has only one prism sheet. The light guide plate has a light incident surface and a light exit surface, and the light incident surface faces the second side. The light source is disposed between the light incident surface and the second side. The prism sheet is disposed between the light exit surface and the display panel.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: April 5, 2022
    Assignee: Coretronic Corporation
    Inventors: Cheng-Tsung Li, Tzeng-Ke Shiau, Bing-Han Tsai
  • Patent number: 11280950
    Abstract: A backlight module includes a light guide plate, a light source and a surface deposition layer. The light guide plate has a light incident surface, an opposite surface opposite the light incident surface, and a light exit surface connected between the light incident surface and the opposite surface. The light source is disposed adjacent to the light incident surface, and a surface deposition layer is at least provided on a part of the opposite surface and a part of the light exit surface. The surface deposition layer includes an opaque material or a low light-transmittance material and has a thickness of smaller than 0.1 mm.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: March 22, 2022
    Assignee: CORETRONIC CORPORATION
    Inventors: Yi-Cheng Lin, Cheng-Tsung Li, Tsung-Wen Chiu, Tzeng-Ke Shiau
  • Publication number: 20210181400
    Abstract: A backlight module includes a light guide plate, a light source and a surface deposition layer. The light guide plate has a light incident surface, an opposite surface opposite the light incident surface, and a light exit surface connected between the light incident surface and the opposite surface. The light source is disposed adjacent to the light incident surface, and a surface deposition layer is at least provided on a part of the opposite surface and a part of the light exit surface. The surface deposition layer includes an opaque material or a low light-transmittance material and has a thickness of smaller than 0.1 mm.
    Type: Application
    Filed: December 8, 2020
    Publication date: June 17, 2021
    Inventors: Yi-Cheng LIN, Cheng-Tsung LI, Tsung-Wen CHIU, Tzeng-Ke SHIAU
  • Publication number: 20200241193
    Abstract: An electronic device with a display screen includes a first body and a first display screen. The first body has an operation surface, the operation surface has a first side and a second side opposite to the first side, and the first side is defined as a user side. The first display screen is disposed in the first body, and the operation surface exposes the first display screen. The first display screen includes a backlight module and a display panel. The backlight module includes a light guide plate, a light source, and has only one prism sheet. The light guide plate has a light incident surface and a light exit surface, and the light incident surface faces the second side. The light source is disposed between the light incident surface and the second side. The prism sheet is disposed between the light exit surface and the display panel.
    Type: Application
    Filed: January 22, 2020
    Publication date: July 30, 2020
    Inventors: CHENG-TSUNG LI, TZENG-KE SHIAU, BING-HAN TSAI
  • Patent number: 9798061
    Abstract: A display device includes a housing, a frame bonded to the housing, and a display module. The display module includes a back cover bonded to the frame, a light guide plate (LGP), a support element, a display panel, and an optical film set. The LGP is supported on the back cover and has a light exiting surface and an opposite back surface. At least two sides of the LGP's back surface are adhered on the back cover, and the LGP is made of glass. The support element and display panel are supported respectively on the LGP and support element. The optical film set is between the display panel and LGP. A hybrid LGP includes a first light guide sub-plates and a second light guide sub-plate. The second light guide sub-plate is stacked on and bonded to the first light guide sub-plate.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: October 24, 2017
    Assignee: YOUNG LIGHTING TECHNOLOGY INC.
    Inventors: Chun-Chung Hsiao, Shih-Chang Chen, Cheng-Tsung Li, Tzeng-Ke Shiau
  • Publication number: 20140029295
    Abstract: A display device includes a housing, a frame bonded to the housing, and a display module. The display module includes a back cover bonded to the frame, a light guide plate (LGP), a support element, a display panel, and an optical film set. The LGP is supported on the back cover and has a light exiting surface and an opposite back surface. At least two sides of the LGP's back surface are adhered on the back cover, and the LGP is made of glass. The support element and display panel are supported respectively on the LGP and support element. The optical film set is between the display panel and LGP. A hybrid LGP includes a first light guide sub-plates and a second light guide sub-plate. The second light guide sub-plate is stacked on and bonded to the first light guide sub-plate.
    Type: Application
    Filed: July 26, 2013
    Publication date: January 30, 2014
    Applicant: YOUNG LIGHTING TECHNOLOGY INC.
    Inventors: Chun-Chung Hsiao, Shih-Chang Chen, Cheng-Tsung Li, Tzeng-Ke Shiau