Patents by Inventor Li-Chieh Chuang

Li-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).

  • Patent number: 11629140
    Abstract: An organic compound is described. An organic electroluminescence device comprises the organic compound, as a host of an emissive layer, or as a hole blocking layer. The organic compound may increase a half-life or current efficiency of the organic electroluminescence device. The organic compound may lower a driving voltage of the organic electroluminescence device. The mentioned organic compound may have the following formula: The same definition as described in the present invention.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: April 18, 2023
    Assignee: LUMINESCENCE TECHNOLOGY CORP.
    Inventors: Feng-Wen Yen, Li-Chieh Chuang
  • Patent number: 11575090
    Abstract: An organic compound of formula (1) useful as a material of an organic electroluminescence device is disclosed. The same definition as described in the present invention.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: February 7, 2023
    Assignee: LUMINESCENCE TECHNOLOGY CORP.
    Inventors: Feng-Wen Yen, Li-Chieh Chuang
  • Publication number: 20220251077
    Abstract: An organic compound is described. An organic electroluminescence device comprises the organic compound as a host or an electron transfer layer. The organic compound of the following formula may lower a driving voltage or increase a current efficiency or a half-life of the organic electroluminescence device. The same definition as described in the present invention.
    Type: Application
    Filed: February 8, 2021
    Publication date: August 11, 2022
    Applicant: LUMINESCENCE TECHNOLOGY CORP.
    Inventors: FENG-WEN YEN, LI-CHIEH CHUANG
  • Publication number: 20220131089
    Abstract: An organic compound of formula (1) useful as a material of an organic electroluminescence device is disclosed. The same definition as described in the present invention.
    Type: Application
    Filed: February 24, 2020
    Publication date: April 28, 2022
    Applicant: Luminescence Technology Corporation
    Inventors: Feng-Wen Yen, Li-Chieh Chuang
  • Patent number: 11276828
    Abstract: The present invention discloses an organic compound and an organic electroluminescence device using the organic compound as a host material, a fluorescent guest material, an electron transporting or a hole blocking material in the light emitting layer of the organic electroluminescence device. The organic compound may be for lowering a driving voltage, power consumption or increasing a current efficiency or half-life of the organic electroluminescence device. The same definition as described in the present invention.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: March 15, 2022
    Assignee: LUMINESCENCE TECHNOLOGY CORP.
    Inventors: Feng-Wen Yen, Li-Chieh Chuang
  • Patent number: 11236075
    Abstract: The present invention discloses an organic compound and an organic electroluminescence device using the organic compound as an emitting host material, an electron transfer material or a hole blocking material in the light emitting layer of the organic electroluminescence device. The organic compound may be for increasing a half-life or current efficiency of the organic electroluminescence device, and may be for lowering a driving voltage or power consumption of the organic electroluminescence device. The same definition as described in the present invention.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: February 1, 2022
    Assignee: LUMINESCENCE TECHNOLOGY CORP.
    Inventors: Feng-Wen Yen, Li-Chieh Chuang
  • Patent number: 11108001
    Abstract: The present invention discloses an organic compound and an organic electroluminescence device employing the organic compound as the fluorescent host or guest material in the light emitting layer of the organic electroluminescence device. The organic electroluminescence device employing the organic compound of the present invention can operate under reduced driving voltage, increased current efficiency, or prolong half-life time.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: August 31, 2021
    Assignee: LUMINESCENCE TECHNOLOGY CORP.
    Inventors: Feng-Wen Yen, Li-Chieh Chuang
  • Patent number: 11038124
    Abstract: The present invention discloses an organic compound and an organic electroluminescence device employing the organic compound as the fluorescent host material in the light emitting layer of the organic electroluminescence device. The organic electroluminescence device employing the organic compound of the present invention can operate under reduced driving voltage, increase current efficiency, and prolong half-life time.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: June 15, 2021
    Assignee: LUMINESCENCE TECHNOLOGY CORP.
    Inventors: Feng-Wen Yen, Li-Chieh Chuang
  • Patent number: 11005047
    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 shows lower power consumption, higher efficiency, and longer half-life time than the existed organic electroluminescence devices.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: May 11, 2021
    Assignee: LUMINESCENCE TECHNOLOGY CORP.
    Inventors: Feng-Wen Yen, Li-Chieh Chuang, Tsun-Yuan Huang
  • Publication number: 20210040075
    Abstract: An organic compound is described. An organic electroluminescence device comprises the organic compound, as a host of an emissive layer, or as a hole blocking layer. The organic compound may increase a half-life or current efficiency of the organic electroluminescence device. The organic compound may lower a driving voltage of the organic electroluminescence device. The mentioned organic compound may have the following formula: The same definition as described in the present invention.
    Type: Application
    Filed: August 6, 2019
    Publication date: February 11, 2021
    Applicant: LUMINESCENCE TECHNOLOGY CORPORATION
    Inventors: FENG-WEN YEN, LI-CHIEH CHUANG
  • Patent number: 10844043
    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: Grant
    Filed: April 24, 2018
    Date of Patent: November 24, 2020
    Inventors: Feng-Wen Yen, Li-Chieh Chuang
  • Publication number: 20200235320
    Abstract: The present invention discloses an organic compound and an organic electroluminescence device employing the organic compound as the fluorescent host or guest material in the light emitting layer of the organic electroluminescence device. The organic electroluminescence device employing the organic compound of the present invention can operate under reduced driving voltage, increased current efficiency, or prolong half-life time.
    Type: Application
    Filed: January 17, 2019
    Publication date: July 23, 2020
    Applicant: LUMINESCENCE TECHNOLOGY CORPORATION
    Inventors: FENG-WEN YEN, LI-CHIEH CHUANG
  • Publication number: 20200235315
    Abstract: The present invention discloses an organic compound and an organic electroluminescence device using the organic compound as a host material, a fluorescent guest material, an electron transporting or a hole blocking material in the light emitting layer of the organic electroluminescence device. The organic compound may be for lowering a driving voltage, power consumption or increasing a current efficiency or half-life of the organic electroluminescence device. The same definition as described in the present invention.
    Type: Application
    Filed: January 21, 2019
    Publication date: July 23, 2020
    Applicant: Luminescence Technology Corporation
    Inventors: Feng-Wen YEN, Li-Chieh Chuang
  • Patent number: 10693074
    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: Grant
    Filed: January 25, 2018
    Date of Patent: June 23, 2020
    Inventors: Feng-Wen Yen, Li-Chieh Chuang
  • Publication number: 20200190065
    Abstract: The present invention discloses an organic compound and an organic electroluminescence device using the organic compound as an emitting host material, an electron transfer material or a hole blocking material in the light emitting layer of the organic electroluminescence device. The organic compound may be for increasing a half-life or current efficiency of the organic electroluminescence device, and may be for lowering a driving voltage or power consumption of the organic electroluminescence device. The same definition as described in the present invention.
    Type: Application
    Filed: December 17, 2018
    Publication date: June 18, 2020
    Applicant: LUMINESCENCE TECHNOLOGY CORPORATION
    Inventors: FENG-WEN YEN, LI-CHIEH CHUANG
  • Patent number: 10622566
    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: Grant
    Filed: October 22, 2017
    Date of Patent: April 14, 2020
    Inventors: Feng-Wen Yen, Li-Chieh Chuang
  • Publication number: 20200111971
    Abstract: The present invention discloses an organic compound and an organic electroluminescence device employing the organic compound as the fluorescent host material in the light emitting layer of the organic electroluminescence device. The organic electroluminescence device employing the organic compound of the present invention can operate under reduced driving voltage, increase current efficiency, and prolong half-life time.
    Type: Application
    Filed: October 3, 2018
    Publication date: April 9, 2020
    Applicant: LUMINESCENCE TECHNOLOGY CORPORATION
    Inventors: Feng-Wen Yen, Li-Chieh Chuang
  • Publication number: 20190378994
    Abstract: An organic compound which can be used as the phosphorescent host material, the fluorescent host material, or the fluorescent dopant material of the light emitting layer, and/or the electron transporting material of the organic electroluminescence device is disclosed. The organic electroluminescence device employing the organic compound can lower driving voltage, prolong half-lifetime, and increase luminance and current efficiency.
    Type: Application
    Filed: June 12, 2018
    Publication date: December 12, 2019
    Applicant: LUMINESCENCE TECHNOLOGY CORPORATION
    Inventors: FENG-WEN YEN, LI-CHIEH CHUANG, SHU-HUA YEH
  • Publication number: 20190348609
    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 shows lower power consumption, higher efficiency, and longer half-life time than the existed organic electroluminescence devices.
    Type: Application
    Filed: May 11, 2018
    Publication date: November 14, 2019
    Applicant: LUMINESCENCE TECHNOLOGY CORPORATION
    Inventors: Feng-Wen Yen, Li-Chieh Chuang, Tsun-Yuan Huang
  • Publication number: 20190273210
    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: March 1, 2018
    Publication date: September 5, 2019
    Applicant: LUMINESCENCE TECHNOLOGY CORPORATION
    Inventors: FENG-WEN YEN, LI-CHIEH CHUANG