Patents by Inventor JALAL JAFARI

JALAL JAFARI 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).

  • Organic light emitting diodes having increased illumination
    Patent number: 9082993
    Abstract: OLEDs having increased illumination are disclosed. The OLEDs have light emitting layers with periodic grain sizes. In particular, by depositing smaller particles at the boundaries of the emitting layers, the injection rate of carriers is improved in the emitting layers and by depositing larger particles in the middle of the emitting layers, the carrier density is increased, which increases electron-hole recombination. Increased recombination facilitates radiative emission of exitons from the OLED. As a result of the periodic grain size structure of the emitting layers, the electroluminescence and durability of the OLEDs are improved.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: July 14, 2015
    Inventors: Ezeddin Mohajerani, Jalal Jafari
  • ORGANIC LIGHT EMITTING DIODES HAVING INCREASED ILLUMINATION
    Publication number: 20120326142
    Abstract: OLEDs having increased illumination are disclosed. The OLEDs have light emitting layers with periodic grain sizes. In particular, by depositing smaller particles at the boundaries of the emitting layers, the injection rate of carriers is improved in the emitting layers and by depositing larger particles in the middle of the emitting layers, the carrier density is increased, which increases electron-hole recombination. Increased recombination facilitates radiative emission of exitons from the OLED. As a result of the periodic grain size structure of the emitting layers, the electroluminescence and durability of the OLEDs are improved.
    Type: Application
    Filed: September 6, 2012
    Publication date: December 27, 2012
    Inventors: EZEDDIN MOHAJERANI, JALAL JAFARI