Patents by Inventor Yeuk Lung Jacob HO

Yeuk Lung Jacob HO 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).

  • Composite photoalignment layer
    Patent number: 11294241
    Abstract: A composite photoalignment layer for aligning liquid crystal molecules includes: a monomeric material; a photoinitiator or a thermal initiator; and an azo dye material. A method for preparing a composite photoalignment layer for aligning liquid crystal molecules includes: mixing, in solution form, a monomeric material, a photoinitiator or a thermal initiator, and an azo dye material; coating the mixed solution onto a substrate to form a thin film; exposing the thin film to polarized light; and, with a thermal initiator, heating the thin film to polymerize the monomeric material and form a solid thin film.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: April 5, 2022
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Man Chun Tseng, Abhishek Kumar Srivastava, Cuiling Meng, Vladimir Grigorievich Chigrinov, Hoi Sing Kwok, Yue Shi, Yeuk Lung Jacob Ho, Chenxiang Zhao
  • COMPOSITE PHOTOALIGNMENT LAYER
    Publication number: 20210011343
    Abstract: A composite photoalignment layer for aligning liquid crystal molecules includes: a monomeric material; a photoinitiator or a thermal initiator; and an azo dye material. A method for preparing a composite photoalignment layer for aligning liquid crystal molecules includes: mixing, in solution form, a monomeric material, a photoinitiator or a thermal initiator, and an azo dye material; coating the mixed solution onto a substrate to form a thin film; exposing the thin film to polarized light; and, with a thermal initiator, heating the thin film to polymerize the monomeric material and form a solid thin film.
    Type: Application
    Filed: September 22, 2020
    Publication date: January 14, 2021
    Inventors: Man Chun TSENG, Abhishek Kumar SRIVASTAVA, Cuiling MENG, Vladimir Grigorievich CHIGRINOV, Hoi Sing KWOK, Yue SHI, Yeuk Lung Jacob HO, Chenxiang ZHAO
  • Composite photoalignment layer
    Patent number: 10816855
    Abstract: A composite photoalignment layer for aligning liquid crystal molecules includes: a monomeric material; a photoinitiator or a thermal initiator; and an azo dye material. A method for preparing a composite photoalignment layer for aligning liquid crystal molecules includes: mixing, in solution form, a monomeric material, a photoinitiator or a thermal initiator, and an azo dye material; coating the mixed solution onto a substrate to form a thin film; exposing the thin film to polarized light; and, with a thermal initiator, heating the thin film to polymerize the monomeric material and form a solid thin film.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: October 27, 2020
    Assignee: The Hong Kong University of Science and Technology
    Inventors: Man Chun Tseng, Abhishek Kumar Srivastava, Cuiling Meng, Hoi Sing Kwok, Yeuk Lung Jacob Ho
  • Organic-inorganic perovskite materials and optoelectronic devices fabricated by close space sublimation
    Patent number: 10381564
    Abstract: A method of fabricating a hybrid organic-inorganic halide perovskite film includes depositing a precursor layer onto a substrate, the precursor layer comprising metal halide, placing an organic source-material layer onto a boat, the organic source-material layer comprising an organic cation, and annealing the precursor layer and the organic source-material layer in a vacuum chamber enclosed in a constrained volume.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: August 13, 2019
    Assignee: The Hong Kong University of Science and Technology
    Inventors: Hoi Sing Kwok, Guijun Li, Yeuk Lung Jacob Ho, Man Wong
  • ORGANIC-INORGANIC PEROVSKITE MATERIALS AND OPTOELECTRONIC DEVICES FABRICATED BY CLOSE SPACE SUBLIMATION
    Publication number: 20180248118
    Abstract: A method of fabricating a hybrid organic-inorganic halide perovskite film includes depositing a precursor layer onto a substrate, the precursor layer comprising metal halide, placing an organic source-material layer onto a boat, the organic source-material layer comprising an organic cation, and annealing the precursor layer and the organic source-material layer in a vacuum chamber enclosed in a constrained volume.
    Type: Application
    Filed: August 17, 2016
    Publication date: August 30, 2018
    Applicant: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Hoi Sing KWOK, Guijun LI, Yeuk Lung Jacob HO, Man WONG
  • COMPOSITE PHOTOALIGNMENT LAYER
    Publication number: 20180039141
    Abstract: A composite photoalignment layer for aligning liquid crystal molecules includes: a monomeric material; a photoinitiator or a thermal initiator; and an azo dye material. A method for preparing a composite photoalignment layer for aligning liquid crystal molecules includes: mixing, in solution form, a monomeric material, a photoinitiator or a thermal initiator, and an azo dye material; coating the mixed solution onto a substrate to form a thin film; exposing the thin film to polarized light; and, with a thermal initiator, heating the thin film to polymerize the monomeric material and form a solid thin film.
    Type: Application
    Filed: October 17, 2017
    Publication date: February 8, 2018
    Inventors: Man Chun TSENG, Abhishek Kumar SRIVASTAVA, Cuiling MENG, Vladimir Grigorievich CHIGRINOV, Hoi Sing KWOK, Yue SHI, Yeuk Lung Jacob HO, Chenxiang ZHAO