Patents by Inventor Jeng-Dar Tsay

Jeng-Dar Tsay 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
    Patent number: 7906786
    Abstract: A light emitting device is provided. In the present invention, a magnetic material is added to the light emitting device to change the current path and the distribution of the current density. As the main distribution of the current density is moved from the area between the electrodes to the area under light-out plane, the emitted light is no longer blocked by the electrodes, such that the light emitting efficiency can be enhanced and the distribution of the current density remains homogeneous.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: March 15, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Rong Xuan, Jeng-Dar Tsay, Chih-Hao Hsu