Patents by Inventor Huan-Lurn Hsieh

Huan-Lurn 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).

  • Patent number: 6387545
    Abstract: A tertiary amine imparted quaterphenyl compound represented by the following formula: where R1 and R2, which can be different or the same, are hydrogen, C1-C5 alkyl, or C6-C12 aryl, and R3 is hydrogen, C1-C5 alkyl, a vinyl group, or an aryl vinyl group. The tertiary amine-imparted quaterphenyl compound exhibits good blue light luminescence and hole-transportability, and can be used in forming a hole-transporting layer, a blue light emitting layer, or a combined hole-transporting and light emitting layer of a light emitting organic electroluminescent device. Examples of the quaterphenyl compounds include N-quaterphenyl-4-yl-N,N-diphenylamine, N-(4′-(1,1-diphenylvinyl)quaterphenyl-4-yl)-N-phenyl-N-(m-tolyl)amine, or N-quaterphenyl-4-yl-N-phenyl-N-(m-tolyl)amine.
    Type: Grant
    Filed: April 14, 1999
    Date of Patent: May 14, 2002
    Assignee: Industrial Technology Research Institute
    Inventors: Jia-Ming Liu, Huan-Lurn Hsieh, Po-Yen Lu, Ying-Chuan Wang