Patents by Inventor Cheng-Chung YAO

Cheng-Chung YAO 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).

  • Heterocyclic compounds and organic electroluminescent devices using the same
    Patent number: 10014480
    Abstract: The present invention discloses a novel heterocyclic compound of Formula (1) and an organic electroluminescent device using the same, in which variables are as described herein. The heterocyclic compound of Formula (1) is present in the emitting layer as a light emitting host in combination with a dopant and another host, in the organic electroluminescent device and high luminous efficiency and low driving voltage are achieved.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: July 3, 2018
    Assignee: E-RAY OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Banumathy Balaganesan, Heh-Lung Huang, Cheng-Chung Yao, Po-Wei Hsieh, Hui-Hsu Chen
  • NOVEL DIAMINE COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
    Publication number: 20180033965
    Abstract: Provided is a compound represented by formula (I), wherein R represents substituted or unsubstituted (C1-C10)alkyl; each of Ar1, Ar2, Ar3 and Ar4 independently represents substituted or unsubstituted (C6-C30)aryl, or substituted or unsubstituted (5 to 30-membered)heteroaryl; and n represents an integer of from 0 to 4. Also provided is an organic electroluminescent device including the compound of formula (I).
    Type: Application
    Filed: December 15, 2016
    Publication date: February 1, 2018
    Inventors: Heh-Lung Huang, Po-Wei Hsu, Cheng-Chung Yao, Teng-Chih Chao
  • HETEROCYCLIC COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICES USING THE SAME
    Publication number: 20160133848
    Abstract: The present invention discloses a novel heterocyclic compound of Formula (1) and an organic electroluminescent device using the same, in which variables are as described herein. The heterocyclic compound of Formula (1) is present in the emitting layer as a light emitting host in combination with a dopant and another host, in the organic electroluminescent device and high luminous efficiency and low driving voltage are achieved.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 12, 2016
    Inventors: Banumathy Balaganesan, Heh-Lung Huang, Cheng-Chung Yao, Po-Wei Hsieh, Hui-Hsu Chen
  • Electrically conducting compositions for organic electronic devices
    Patent number: 9306096
    Abstract: The present invention discloses an electrically conducting composition that include a charge transporting oligomer selected either from oligoanilines and/or oligothiophenes and electron accepting dopants; and further contain conductivity enhancing substances such as ionic liquids, or a nanoparticle, dissolved in a mixture of at least two solvents to achieve the desired formulation for making the electrically conductive layer for organic electronic devices.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: April 5, 2016
    Assignee: E-RAY OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Banumathy Balaganesan, Cheng-Chung Yao, Abraham Joseph Kakanat
  • ELECTRICALLY CONDUCTING COMPOSITIONS FOR ORGANIC ELECTRONIC DEVICES
    Publication number: 20140048747
    Abstract: The present invention discloses an electrically conducting composition that include a charge transporting oligomer selected either from oligoanilines and/or oligothiophenes and electron accepting dopants; and further contain conductivity enhancing substances such as ionic liquids, or a nanoparticle, dissolved in a mixture of at least two solvents to achieve the desired formulation for making the electrically conductive layer for organic electronic devices.
    Type: Application
    Filed: August 16, 2013
    Publication date: February 20, 2014
    Applicant: E-RAY OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Banumathy BALAGANESAN, Cheng-Chung YAO