Patents by Inventor Ll-CHIEH CHUANG

Ll-CHIEH CHUANG 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).

  • HETEROAROMATIC COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
    Publication number: 20190322641
    Abstract: A heteroaromatic compound which can be used as the fluorescent guest material in the light emitting layer of the organic electroluminescence device is disclosed. The organic electroluminescence device employing the heteroaromatic compound of the present invention can operate under reduced driving voltage, increase current efficiency, and prolong half-life time.
    Type: Application
    Filed: April 24, 2018
    Publication date: October 24, 2019
    Applicant: LUMINESCENCE TECHNOLOGY CORPORATION
    Inventors: Feng-Wen Yen, Ll-Chieh Chuang
  • 5,12-DIHYDROTETRACENE DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
    Publication number: 20190229270
    Abstract: The present invention discloses a 5,12-dihydrotetracene derivative and an organic electroluminescence device employing the 5,12-dihydrotetracene derivative as the thermally activated delayed fluorescence host material or the thermally activated delayed fluorescence dopant material in the light emitting layer. The organic electroluminescence device of the present invention exhibits improved performance, such as reduced power consumption and increased current efficiency.
    Type: Application
    Filed: January 25, 2018
    Publication date: July 25, 2019
    Applicant: LUMINESCENCE TECHNOLOGY CORPORATION
    Inventors: FENG-WEN YEN, Ll-CHIEH CHUANG
  • POLYHETEROAROMATIC COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
    Publication number: 20190123284
    Abstract: The present invention discloses a novel polyheteroaromatic compound derived from 7?,7?-dimethyl-5?,7?-dihydrospiro[cyclopenta[1,2-b:5,4-b?-dithiophene-4,13?-indeno[1,2-b]acridine] core structures. The polyheteroaromatic compound can be used as organic electroluminescence materials for use in an organic electroluminescence device and electronic equipment.
    Type: Application
    Filed: October 22, 2017
    Publication date: April 25, 2019
    Applicant: LUMINESCENCE TECHNOLOGY CORPORATION
    Inventors: FENG-WEN YEN, Ll-CHIEH CHUANG
  • ORGANIC ELECTROLUMINESCENT MATERIAL AND USING THE SAME
    Publication number: 20180315932
    Abstract: There is provided a novel material of formula(1) or formula(2) and the organic EL device employing the novel material as phosphorescent light emitting host of emitting layer, delayed fluorescence dopant of emitting layer, and hole blocking layer can display good performance like as lower driving voltage and power consumption, increasing efficiency and life time of organic EL device. wherein p, X, Z, R1, Ar and A are the same definition as described in the present invention.
    Type: Application
    Filed: April 28, 2017
    Publication date: November 1, 2018
    Applicant: LUMINESCENCE TECHNOLOGY CORPORATION
    Inventors: FENG-WEN YEN, CHIN-MIN TENG, Ll-CHIEH CHUANG
  • DELAYED FLUORESCENCE COMPOUND FOR ORGANIC EL DEVICE AND USING THE SAME
    Publication number: 20180159049
    Abstract: The present invention discloses a delayed fluorescence compound and the organic EL device employing the delayed fluorescence compound as light emitting host of emitting lay and/or an electron transporting layer, and/or a hole blocking layer, and/or a delayed fluorescence material of emitting layer for organic EL device in the present invention display good performance.
    Type: Application
    Filed: December 5, 2016
    Publication date: June 7, 2018
    Applicant: LUMINESCENCE TECHNOLOGY CORPORATION
    Inventors: FENG-WEN YEN, Ll-CHIEH CHUANG