Patents by Inventor Zuliang Du

Zuliang Du 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).

  • Non-blinking quantum dot, preparation method thereof, and quantum dot-based light-emitting diode
    Patent number: 11387423
    Abstract: A non-blinking quantum dot (NBQD) is provided. In a light-emitting diode (LED) prepared with the NBQD, the maximum red brightness is greater than 180,000 cd/m2, the green brightness is greater than 200,000 cd/m2, and the blue brightness is greater than 100,000,000 cd/m2. The red current efficiency is 15-40 cd/A, the green current efficiency is 90-150 cd/A, and the blue current efficiency is 1-20 cd/A. The red external quantum efficiency is 18-30%, the green external quantum efficiency is 18-30%, and the blue external quantum efficiency is 6-22%. When the current efficiency or external quantum efficiency is the highest, the red, green and blue brightness of the LED is 70,000-100,000 cd/m2, 70,000-200,000 cd/m2 and 3,000-40,000 cd/m2, respectively.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: July 12, 2022
    Assignee: HENAN UNIVERSITY
    Inventors: Huaibin Shen, Zuliang Du, Linsong Li, Shujie Wang, Yanbin Zhang
  • NON-BLINKING QUANTUM DOT, PREPARATION METHOD THEREOF, AND QUANTUM DOT-BASED LIGHT-EMITTING DIODE
    Publication number: 20210305525
    Abstract: A non-blinking quantum dot (NBQD) is provided. In a light-emitting diode (LED) prepared with the NBQD, the maximum red brightness is greater than 180,000 cd/m2, the green brightness is greater than 200,000 cd/m2, and the blue brightness is greater than 100,000,000 cd/m2. The red current efficiency is 15-40 cd/A, the green current efficiency is 90-150 cd/A, and the blue current efficiency is 1-20 cd/A. The red external quantum efficiency is 18-30%, the green external quantum efficiency is 18-30%, and the blue external quantum efficiency is 6-22%. When the current efficiency or external quantum efficiency is the highest, the red, green and blue brightness of the LED is 70,000-100,000 cd/m2, 70,000-200,000 cd/m2 and 3,000-40,000 cd/m2, respectively.
    Type: Application
    Filed: March 25, 2020
    Publication date: September 30, 2021
    Applicant: HENAN UNIVERSITY
    Inventors: Huaibin Shen, Zuliang Du, Linsong Li, Shujie Wang, Yanbin Zhang