Patents by Inventor Jung Hun Jang

Jung Hun Jang 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).

  • LIGHT EMITTING DEVICE, LIGHT EMITTING DEVICE PACKAGE, AND DISPLAY DEVICE THEREWITH
    Publication number: 20120033444
    Abstract: A light emitting device includes an active layer having quantum walls and quantum wells, a first conductive type semiconductor layer on one side of the active layer, a second conductive type semiconductor layer on the other side of the active layer, and an interfacial layer arranged between the active layer and the first conductive type semiconductor layer or between the active layer and the second conductive type semiconductor layer, wherein the interfacial layer includes barrier layers and basal layers provided between the barrier layers, wherein an energy bandgap of each of the barrier layers increases from the first conductive type semiconductor layer or the second conductive type semiconductor layer to an active layer direction linearly, and greatest energy bandgaps of the barrier layers are different from one another.
    Type: Application
    Filed: July 8, 2011
    Publication date: February 9, 2012
    Inventors: Yong Tae Moon, Yong Seon Song, Jong hak Won, Jeong Sik Lee, Jung Hun Jang