Patents by Inventor Ya-Lang Yang

Ya-Lang Yang 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: 8692273
    Abstract: The present application is to provide a light-emitting device comprising a metal reflective layer; a first transparent conductive oxide layer having a first refractive index; a second transparent conductive oxide layer having a second refractive index different from the first refractive index, and being between the metal reflective layer and the first transparent conductive oxide layer; and a light-emitting stack layer electrically connected to the second transparent conductive oxide layer substantially through the first transparent conductive layer; wherein there is no light absorbing material between the metal reflective layer and the first transparent conductive oxide layer.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: April 8, 2014
    Assignee: Epistar Corporation
    Inventors: Jin-Ywan Lin, Ya-Lang Yang
  • LIGHT-EMITTING DEVICE
    Publication number: 20120181563
    Abstract: The present application is to provide a light-emitting device comprising a metal reflective layer; a first transparent conductive oxide layer having a first refractive index; a second transparent conductive oxide layer having a second refractive index different from the first refractive index, and being between the metal reflective layer and the first transparent conductive oxide layer; and a light-emitting stack layer electrically connected to the second transparent conductive oxide layer substantially through the first transparent conductive layer; wherein there is no light absorbing material between the metal reflective layer and the first transparent conductive oxide layer.
    Type: Application
    Filed: March 26, 2012
    Publication date: July 19, 2012
    Inventors: Jin-Ywan LIN, Ya-Lang Yang
  • Light-emitting device
    Patent number: 8143636
    Abstract: This application discloses a light-emitting device comprising a light-emitting stack layer, a first transparent conductive layer disposed below the light-emitting stack layer, a transparent dielectric barrier layer disposed below the first transparent conductive layer, a second transparent conductive layer disposed below the transparent dielectric barrier layer and a metal reflective layer disposed below the second transparent conductive layer wherein an omni-directional reflector (ODR) comprises the metal reflective layer and the second transparent conductive layer. Besides, the first transparent conductive layer is ohmically connected with the light-emitting stack layer.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: March 27, 2012
    Assignee: Epistar Corporation
    Inventors: Jin-Ywan Lin, Ya-Lang Yang
  • LIGHT-EMITTING DEVICE
    Publication number: 20100123153
    Abstract: This application discloses a light-emitting device comprising a light-emitting stack layer, a first transparent conductive layer disposed below the light-emitting stack layer, a transparent dielectric barrier layer disposed below the first transparent conductive layer, a second transparent conductive layer disposed below the transparent dielectric barrier layer and a metal reflective layer disposed below the second transparent conductive layer wherein an omni-directional reflector (ODR) comprises the metal reflective layer and the second transparent conductive layer. Besides, the first transparent conductive layer is ohmically connected with the light-emitting stack layer.
    Type: Application
    Filed: November 17, 2009
    Publication date: May 20, 2010
    Inventors: Jin-Ywan LIN, Ya-Lang Yang