Patents by Inventor Liangrui HE

Liangrui HE 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).

  • Method for preparing manganese-doped red phosphor, product, device, and backlight module
    Patent number: 11939503
    Abstract: Disclosed are a preparation method for manganese-doped red phosphor, a device and a backlight module including the product. The method includes: 1) mixing A2BF6 polycrystalline particles with mill balls; 2) mixing A2BF6 powder obtained after ball-milling with a hydrofluoric acid for secondary crystallization; 3) filtering out solid particles in A2BF6 and hydrofluoric acid solution after the secondary crystallization; 4) performing ion exchange between A2BF6 particles and A2BF6; and 5) filtering out solid particles to obtain a filter cake, and performing drying treatment to obtain manganese-doped red phosphor.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: March 26, 2024
    Assignees: Hefei University of Technology, Intelligent Manufacturing Institute of HFUT
    Inventors: Lei Chen, Peng Cheng, Jie Chen, Yunfei Tian, Jialong Wang, Liangrui He, Qiuhong Zhang, Haiyong Ni
  • METHOD FOR PREPARING MANGANESE-DOPED RED PHOSPHOR, PRODUCT, DEVICE, AND BACKLIGHT MODULE
    Publication number: 20210324265
    Abstract: Disclosed are a preparation method for manganese-doped red phosphor, a device and a backlight module including the product. The method includes: 1) mixing A2BF6 polycrystalline particles with mill balls; 2) mixing A2BF6 powder obtained after ball-milling with a hydrofluoric acid for secondary crystallization; 3) filtering out solid particles in A2BF6 and hydrofluoric acid solution after the secondary crystallization; 4) performing ion exchange between A2BF6 particles and A2BF6; and 5) filtering out solid particles to obtain a filter cake, and performing drying treatment to obtain manganese-doped red phosphor.
    Type: Application
    Filed: October 26, 2018
    Publication date: October 21, 2021
    Inventors: Lei CHEN, Peng CHENG, Jie CHEN, Yunfei TIAN, Jialong WANG, Liangrui HE, Qiuhong ZHANG, Haiyong NI