Patents by Inventor Po-Wei Hsieh

Po-Wei Hsieh 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
  • 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