Patents by Inventor Shujuan LIU

Shujuan LIU 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).

  • Green light iridium (III) complex and a method of preparing the same
    Patent number: 9312503
    Abstract: The present invention provides a green light iridium (III) complex and a method of preparing the same, which has a formula as follows: wherein m is 2 or 3; at least one of Ar1, Ar2, Ar3, Ar4, and Ar5 is a group containing fluorophenyl unit, which has a formula as follows: wherein R1, R2, R3, R4, R5 are H, CH3, or FCF3, and at least one of R1, R2, R3, R4, R5 is F or CF3. The green light iridium (III) complex of the present invention has higher light emitting efficiency; the method of preparing the same has tender reaction conditions, simple synthesis steps and easy to handle. Due to the fluorophenyl unit capable of transporting electrons introduced therein, carrier current mobility and exciton transporting equilibrium are increased to contribute better exciton recombination so as to enhance performance of an organic electroluminescent device.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: April 12, 2016
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Qiang Zhao, Wei Huang, Shujuan Liu, Yifan Wang, Qinghua Zou
  • A GREEN LIGHT IRIDIUM (III) COMPLEX AND A METHOD OF PREPARING THE SAME
    Publication number: 20150357585
    Abstract: The present invention provides a green light iridium (III) complex and a method of preparing the same, which has a formula as follows: wherein m is 2 or 3; at least one of Ar1, Ar2, Ar3, Ar4, and Ar5 is a group containing fluorophenyl unit, which has a formula as follows: wherein R1, R2, R3, R4, R5 are H, CH3, or FCF3, and at least one of R1, R2, R3, R4, R5 is F or CF3. The green light iridium (III) complex of the present invention has higher light emitting efficiency; the method of preparing the same has tender reaction conditions, simple synthesis steps and easy to handle. Due to the fluorophenyl unit capable of transporting electrons introduced therein, carrier current mobility and exciton transporting equilibrium are increased to contribute better exciton recombination so as to enhance performance of an organic electroluminescent device.
    Type: Application
    Filed: May 28, 2014
    Publication date: December 10, 2015
    Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.
    Inventors: Qiang ZHAO, Wei HUANG, Shujuan LIU, Yifan WANG, Qinghua ZOU