Patents by Inventor Fang Miao ZHANG

Fang Miao ZHANG 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).

  • Liquid crystal compounds containing dibenzopyran derivatives of naphthenic base and application thereof
    Patent number: 9540565
    Abstract: The present invention discloses liquid crystal compounds having dibenzopyran derivatives with cycloalkyl groups, and preparation methods and application thereof. The liquid crystal compounds having dibenzopyran derivatives with cycloalkyl terminal groups, shown in formula I, exhibit better miscibility and a very large negative dielectric constant, compared to those having a flexible alkyl chain as a terminal group, therefore the compounds of the present invention, shown in formula I, may improve the miscibility of liquid crystal compounds and broaden the application range of liquid crystal mixtures. In addition, the compounds may also increase the negative dielectric constants of liquid crystal mixtures, having an important application value.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: January 10, 2017
    Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO., LTD
    Inventors: Ming Li, Jin Song Meng, Guo Liang Yun, Fang Miao Zhang, Wen Hai Lu, Jia Deng, Lei Zhao
  • LIQUID CRYSTAL COMPOUNDS CONTAINING DIBENZOPYRAN DERIVATIVES OF NAPHTHENIC BASE AND APPLICATION THEREOF
    Publication number: 20160230092
    Abstract: The present invention discloses liquid crystal compounds having dibenzopyran derivatives with cycloalkyl groups, and preparation methods and application thereof. The liquid crystal compounds having dibenzopyran derivatives with cycloalkyl terminal groups, shown in formula I, exhibit better miscibility and a very large negative dielectric constant, compared to those having a flexible alkyl chain as a terminal group, therefore the compounds of the present invention, shown in formula I, may improve the miscibility of liquid crystal compounds and broaden the application range of liquid crystal mixtures. In addition, the compounds may also increase the negative dielectric constants of liquid crystal mixtures, having an important application value.
    Type: Application
    Filed: May 18, 2015
    Publication date: August 11, 2016
    Inventors: Ming LI, Jin Song MENG, Guo Liang YUN, Fang Miao ZHANG, Wen Hai LU, Jia DENG, Lei ZHAO