Patents by Inventor Wen-Hao CAI

Wen-Hao CAI 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).

  • OPTICAL FILM, BACKLIGHT MODULE, AND DISPLAY DEVICE
    Publication number: 20240004123
    Abstract: An optical film comprises a light incident side and a light emitting side opposite to the light incident side. A plurality of light incident microstructures are formed on the light incident side, and the light incident microstructures are tapered structures. According to the structural design of the light incident microstructures of the optical film, the light field of a light source can be expanded to achieve the purpose of emitting light at a specific angle. The invention also provides a backlight module and a display device including the optical film.
    Type: Application
    Filed: September 5, 2023
    Publication date: January 4, 2024
    Applicant: Radiant Opto-Electronics Corporation
    Inventors: Wei-Hsuan CHEN, Chung-Yung TAI, Wen-Hao CAI, Chun-Yi WU
  • Backlight module and display device
    Patent number: 11789192
    Abstract: A backlight module includes at least one optical film and a backlight unit. The optical film has a light incident side and a light emitting side opposite to the light incident side. A plurality of light incident microstructures are formed on the light incident side, and the light incident microstructures are tapered structures. The backlight unit is disposed on the light incident side of the optical film and includes a light source. According to the structural design of the light incident microstructures of the optical film, the light field of the light source can be expanded to achieve the purpose of emitting light at a specific angle. The invention also provides a display device including the backlight module.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: October 17, 2023
    Assignee: Radiant Opto-Electronics Corporation
    Inventors: Wei-Hsuan Chen, Chung-Yung Tai, Wen-Hao Cai, Chun-Yi Wu
  • BACKLIGHT MODULE AND DISPLAY DEVICE
    Publication number: 20230013893
    Abstract: A backlight module includes at least one optical film and a backlight unit. The optical film has a light incident side and a light emitting side opposite to the light incident side. A plurality of light incident microstructures are formed on the light incident side, and the light incident microstructures are tapered structures. The backlight unit is disposed on the light incident side of the optical film and includes a light source. According to the structural design of the light incident microstructures of the optical film, the light field of the light source can be expanded to achieve the purpose of emitting light at a specific angle. The invention also provides a display device including the backlight module.
    Type: Application
    Filed: June 29, 2022
    Publication date: January 19, 2023
    Applicant: Radiant Opto-Electronics Corporation
    Inventors: Wei-Hsuan CHEN, Chung-Yung TAI, Wen-Hao CAI, Chun-Yi WU
  • Light guide plate
    Patent number: 9547117
    Abstract: A light guide plate includes a light entry surface with first elongated elements, and a light exit surface with second elongated elements. Each of the first and second elongated elements serves to guide light, and has a cross-section in a shape of a circular segment.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: January 17, 2017
    Assignee: RADIANT OPTO-ELECTRONICS CORPORATION
    Inventors: Wen-Hao Cai, Wei-Hsuan Chen
  • LIGHT GUIDE PLATE
    Publication number: 20150185392
    Abstract: A light guide plate includes a light entry surface with first elongated elements, and a light exit surface with second elongated elements. Each of the first and second elongated elements serves to guide light, and has a cross-section in a shape of a circular segment.
    Type: Application
    Filed: October 8, 2014
    Publication date: July 2, 2015
    Inventors: Wen-Hao CAI, Wei-Hsuan CHEN