Patents by Inventor Yeong-Bae LEE

Yeong-Bae LEE 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).

  • Publication number: 20150219288
    Abstract: A light-emitting diode (LED) package and a method of manufacturing the same are provided. The LED package includes a package mold, an LED chip located on a surface of the package mold, and a wavelength converter located on the surface of the package mold and separated from the LED chip. The wavelength converter includes a first barrier layer located on the surface of the package mold, a wavelength conversion layer located on the first barrier layer, and a second barrier layer located on the wavelength conversion layer.
    Type: Application
    Filed: June 16, 2014
    Publication date: August 6, 2015
    Inventors: Jae Sul AN, Seok Hyun NAM, Sang Hyuck YOON, Yeong Bae LEE
  • Patent number: 9096797
    Abstract: A silicate phosphor composition is provided having a ?-phase of an orthorhombic crystal structure whose space group is Pbnm 62, and whose composition is represented by the following chemical formula: Ca2-x-y-zMxSiO4:yCe3+,zN(0?x<0.5,0<y?0.1,0?z<0.15) In the formula, M represents at least one member selected from the group consisting of Mg, Sr, Ba, Zn, Na, Al, Ga, Ge, P, As and Fe, and N represents at least one member selected from the group consisting of Eu2+, Mn2+, Tb3+, Yb2+ and Tm3+. The silicate phosphor has a maximum absorbance for a wavelength of about 450 nm to about 475 nm corresponding to a main part of a blue excitation light, and has a great stability at a high temperature. As such the silicate phosphor may be used in combination with a blue light source to produce a white light.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: August 4, 2015
    Assignees: SAMSUNG DISPLAY CO., LTD., PU-LYONG NATIONAL UNIVERSITY INDUSTRY—UNIVERSITY FOUNDATION
    Inventors: Myeong-Ju Shin, Seung-Hwan Baek, Yeong-Bae Lee, Young-Sic Kim, Seok-Hyun Nam, Byung-Choon Yang, Jong-Su Kim, Kwang-Won Park, Yun-Hyoung Park, Ji-Su Yu, Hyung-Seok Lim
  • Publication number: 20140009726
    Abstract: A method of manufacturing a nanophosphor includes: contacting a nanophosphor raw material and a flux to form a mixture, sintering the mixture to form a nanoprecursor, ball-milling the nanoprecursor, and drying the ball-milled nanoprecursor to form the nanophosphor, wherein an average particle size of the nanophosphor is equal to or more than about 50 nanometers (nm) and equal to or less than about 7 micrometers (um).
    Type: Application
    Filed: December 5, 2012
    Publication date: January 9, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Myeong Ju SHIN, Seung Hwan BAEK, Yeong Bae LEE, Chan Jae PARK
  • Publication number: 20120223636
    Abstract: A silicate phosphor composition is provided having a ?-phase of an orthorhombic crystal structure whose space group is Pbnm 62, and whose composition is represented by the following chemical formula: Ca2-x-y-zMxSiO4:yCe3+,zN(0?x<0.5,0<y?0.1,0?z<0.15) In the formula, M represents at least one member selected from the group consisting of Mg, Sr, Ba, Zn, Na, Al, Ga, Ge, P, As and Fe, and N represents at least one member selected from the group consisting of Eu2+, Mn2+, Tb3+, Yb2+ and Tm3+. The silicate phosphor has a maximum absorbance for a wavelength of about 450 nm to about 475 nm corresponding to a main part of a blue excitation light, and has a great stability at a high temperature. As such the silicate phosphor may be used in combination with a blue light source to produce a white light.
    Type: Application
    Filed: May 3, 2012
    Publication date: September 6, 2012
    Inventors: Myeong-Ju Shin, Seung-Hwan Baek, Yeong-Bae Lee, Young-Sic Kim, Seok-Hyun Nam, Byung-Choon Yang, Jong-Su Kim, Kwang-Won Park, Yun-Hyoung Park, Ji-Su Yu
  • Publication number: 20120217522
    Abstract: A light emitting diode (“LED”) includes a substrate, a light emitting unit on the substrate and generating light, an encapsulation layer overlapping an entire of exposed surfaces of the light emitting unit, and a coating layer including an organic material and on the encapsulation layer. A refractive index of the coating layer is greater than a refractive index of air and less than a refractive index of the encapsulation layer.
    Type: Application
    Filed: July 5, 2011
    Publication date: August 30, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yeong-Bae LEE, Myeong-Ju SHIN, Seung-Hwan BAEK