Patents by Inventor Tsang Ming Michael CHOI

Tsang Ming Michael CHOI 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).

  • Method and hardware to enhance light out-coupling
    Patent number: 9371979
    Abstract: The present invention provides an enhanced light out-coupling device for extraction of light radiation from a light source. The enhanced light out-coupling device comprises a grid having a plurality of channels, a reflective material layer coated on the grid, and a high refractive index fluid layer. In addition, the grid can be filled with phosphor particles for light converting. The device of the presently claimed invention is able to effectively avoid the scattering problem generated from the sapphire substrate and phosphor particles, as well as reduce light adsorption by the array of grid during the light extraction, leading to better image quality.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: June 21, 2016
    Assignee: NANO AND ADVANCED MATERIALS INSTITUTE LIMITED
    Inventors: Tsang Ming Michael Choi, Yuen Yan Gena Tsang, Kwok Keung Paul Ho
  • Solution Process Electron Transporting Layer for Polymer Light Emitting Diode
    Publication number: 20160126505
    Abstract: The present invention relates to a method for fabricating a solution-processed PLED including an electron transport layer. The electron transport layer, deposited on an emission layer by a solution process, provides the performance comparable to those processed by vacuum deposition. In addition, the method of the present invention is able to lower manufacturing cost and reduce time for fabrication.
    Type: Application
    Filed: October 30, 2014
    Publication date: May 5, 2016
    Inventors: Tsang Ming Michael CHOI, Tsz Kiu Brian LO, Kwok Keung Paul HO
  • METHOD AND HARDWARE TO ENHANCE LIGHT OUT-COUPLING
    Publication number: 20150003056
    Abstract: The present invention provides an enhanced light out-coupling device for extraction of light radiation from a light source. The enhanced light out-coupling device comprises a grid having a plurality of channels, a reflective material layer coated on the grid, and a high refractive index fluid layer. In addition, the grid can be filled with phosphor particles for light converting. The device of the presently claimed invention is able to effectively avoid the scattering problem generated from the sapphire substrate and phosphor particles, as well as reduce light adsorption by the array of grid during the light extraction, leading to better image quality.
    Type: Application
    Filed: May 7, 2014
    Publication date: January 1, 2015
    Applicant: Nano and Advanced Materials Institute Limited
    Inventors: Tsang Ming Michael CHOI, Yuen Yan Gena TSANG, Kwok Keung Paul HO