Patents by Inventor Kwang-Yong Oh

Kwang-Yong Oh 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).

  • Patent number: 10510933
    Abstract: A light-emitting diode package includes a light-emitting diode chip disposed in a housing, a first phosphor configured to emit green light, and a second and a third phosphor configured to emit red light. White light is configured to be formed by a synthesis of light emitted from the light-emitting diode chip, the first phosphor, the second phosphor, and the third phosphor. At least one of the second and third phosphor is a nitride based phosphor that includes at least one of MSiN2, MSiON2, and M2Si5N8, where M is one of Ca, Sr, Ba, Zn, Mg, and Eu.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: December 17, 2019
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Kwang Yong Oh, Ho Jun Byun, Hyuck Jun Kim, Ki Bum Nam, Su Yeon Kim
  • Publication number: 20190363225
    Abstract: A light-emitting diode package includes a light-emitting diode chip disposed in a housing, a first phosphor configured to emit green light, and a second and a third phosphor configured to emit red light. White light is configured to be formed by a synthesis of light emitted from the light-emitting diode chip, the first phosphor, the second phosphor, and the third phosphor. At least one of the second and third phosphor is a nitride based phosphor that includes at least one of MSiN2, MSiON2, and M2Si5N8, where M is one of Ca, Sr, Ba, Zn, Mg, and Eu.
    Type: Application
    Filed: August 12, 2019
    Publication date: November 28, 2019
    Inventors: Kwang Yong OH, Ho Jun BYUN, Hyuck Jun KIM, Ki Bum NAM, Su Yeon KIM
  • Patent number: 10424697
    Abstract: A light-emitting diode package includes a light-emitting diode chip disposed in a housing, a first phosphor configured to emit green light, and a second phosphor configured to emit red light. White light is configured to be formed by a synthesis of light emitted from the light-emitting diode chip, the first phosphor, and the second phosphor. The second phosphor has a chemical formula of A2MF6:Mn4+, A is one of Li, Na, K, Rb, Ce, and NH4, and M is one of Si, Ti, Nb, and Ta, and the Mn4+ of the second phosphor has a mole range of about 0.02 to about 0.035 times the M.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: September 24, 2019
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Kwang Yong Oh, Ho Jun Byun, Hyuck Jun Kim, Ki Bum Nam, Su Yeon Kim
  • Patent number: 10418348
    Abstract: A light emitting diode package including a housing, a first light emitting diode chip and a second light emitting diode chip disposed in the housing, and a wavelength conversion part including a phosphor configured to absorb light emitted from the first light emitting diode chip and emit light having a different wavelength than the light emitted from the first light emitting diode chip, in which the light emitted from the first light emitting diode chip has a shorter wavelength than light emitted from the second light emitting diode chip, and the phosphor has a fluorescence intensity of 10 or less at a peak wavelength of light emitted from the second light emitting diode chip, with reference to a maximum fluorescence intensity of 100 at a wavelength of 425 nm to 475 nm on an excitation spectrum of the second light emitting diode chip.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: September 17, 2019
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Myung Jin Kim, Kwang Yong Oh, Seung Ryeol Ryu
  • Publication number: 20190237636
    Abstract: A light-emitting diode package includes a light-emitting diode chip disposed in a housing, a first phosphor configured to emit green light, and a second phosphor configured to emit red light. White light is configured to be formed by a synthesis of light emitted from the light-emitting diode chip, the first phosphor, and the second phosphor. The second phosphor has a chemical formula of A2MF6:Mn4+, A is one of Li, Na, K, Rb, Ce, and NH4, and M is one of Si, Ti, Nb, and Ta, and the Mn4+ of the second phosphor has a mole range of about 0.02 to about 0.035 times the M.
    Type: Application
    Filed: April 1, 2019
    Publication date: August 1, 2019
    Inventors: Kwang Yong OH, Ho Jun BYUN, Hyuck Jun KIM, Ki Bum NAM, Su Yeon KIM
  • Patent number: 10249801
    Abstract: A light emitting diode package includes a light emitting diode chip disposed in a housing, a first phosphor configured to emit green light, and a second phosphor configured to emit red light. White light is configured to be formed by a synthesis of light emitted from the light emitting diode chip, the first phosphor, and the second phosphor. The second phosphor has a chemical formula of A2MF6:Mn4+, A is one of Li, Na, K, Rb, Ce, and NH4, and M is one of Si, Ti, Nb, and Ta, and the Mn4+ of the second phosphor has a mole range of about 0.02 to about 0.035 times the M.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: April 2, 2019
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Kwang Yong Oh, Ho Jun Byun, Hyuck Jun Kim, Ki Bum Nam, Su Yeon Kim
  • Publication number: 20180287030
    Abstract: A light emitting diode apparatus including a substrate, a plurality of light emitting diodes regularly arranged on the substrate and configured to emit ultraviolet (UV) light, the light emitting diodes including first, second, and third sub-light emitting diodes, a plurality of phosphor layers disposed on the light emitting diodes and to convert the wavelength of light emitted from the light emitting diodes, the phosphor layers including first, second, and third phosphor layers disposed on the first, second, and third sub-light emitting diodes, respectively, and a control unit configured to supply power to the light emitting diodes, in which the phosphor layers are spaced apart from each other by a blocking region, and the control unit is configured to cause at least a portion of the light emitting diodes to emit light.
    Type: Application
    Filed: June 4, 2018
    Publication date: October 4, 2018
    Inventors: Motonobu TAKEYA, Young Hyun KIM, Jong Ik LEE, Kwang Yong OH
  • Patent number: 9997688
    Abstract: A display apparatus and a method of manufacturing the same includes a plurality of light emitting diode modules each including a plurality of light emitting diodes regularly arranged therein, and a substrate including a drive unit driving the plurality of light emitting diodes. The substrate is coupled to the plurality of light emitting diode modules such that they oppose each other; and, the drive unit is electrically connected to the plurality of light emitting diodes.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: June 12, 2018
    Assignee: Seoul Semiconducter Co., Ltd.
    Inventors: Motonobu Takeya, Young Hyun Kim, Jong Ik Lee, Kwang Yong Oh
  • Publication number: 20180082985
    Abstract: A light emitting diode package including a housing, a first light emitting diode chip and a second light emitting diode chip disposed in the housing, and a wavelength conversion part including a phosphor configured to absorb light emitted from the first light emitting diode chip and emit light having a different wavelength than the light emitted from the first light emitting diode chip, in which the light emitted from the first light emitting diode chip has a shorter wavelength than light emitted from the second light emitting diode chip, and the phosphor has a fluorescence intensity of 10 or less at a peak wavelength of light emitted from the second light emitting diode chip, with reference to a maximum fluorescence intensity of 100 at a wavelength of 425 nm to 475 nm on an excitation spectrum of the second light emitting diode chip.
    Type: Application
    Filed: September 19, 2017
    Publication date: March 22, 2018
    Inventors: Myung Jin KIM, Kwang Yong OH, Seung Ryeol RYU
  • Publication number: 20170309796
    Abstract: A light emitting diode package includes a light emitting diode chip disposed in a housing, a first phosphor configured to emit green light, and a second phosphor configured to emit red light. White light is configured to be formed by a synthesis of light emitted from the light emitting diode chip, the first phosphor, and the second phosphor. The second phosphor has a chemical formula of A2MF6:Mn4+, A is one of Li, Na, K, Rb, Ce, and NH4, and M is one of Si, Ti, Nb, and Ta, and the Mn4+ of the second phosphor has a mole range of about 0.02 to about 0.035 times the M.
    Type: Application
    Filed: July 10, 2017
    Publication date: October 26, 2017
    Inventors: Kwang Yong OH, Ho Jun BYUN, Hyuck Jun KIM, Ki Bum NAM, Su Yeon KIM
  • Publication number: 20170309795
    Abstract: A light emitting diode package includes: a housing; a light emitting diode chip arranged in the housing; a wavelength conversion unit arranged on the light emitting diode chip; a first fluorescent substance distributed inside the wavelength conversion unit and emitting light having a peak wavelength in the cyan wavelength band; and a second fluorescent substance distributed inside the wavelength conversion unit and emitting light having a peak wavelength in the red wavelength band, wherein the peak wavelength of light emitted from the light emitting diode chip is located within a range of 415 nm to 430 nm.
    Type: Application
    Filed: October 7, 2015
    Publication date: October 26, 2017
    Inventors: Myung Jin KIM, Kwang Yong OH, Ki Bum NAM, Ji Youn OH, Sang Shin PARK, Michael LIM
  • Publication number: 20170250329
    Abstract: A display apparatus and a method of manufacturing the same includes a plurality of light emitting diode modules each including a plurality of light emitting diodes regularly arranged therein, and a substrate including a drive unit driving the plurality of light emitting diodes. The substrate is coupled to the plurality of light emitting diode modules such that they oppose each other; and, the drive unit is electrically connected to the plurality of light emitting diodes.
    Type: Application
    Filed: February 27, 2017
    Publication date: August 31, 2017
    Inventors: Motonobu TAKEYA, Young Hyun KIM, Jong Ik LEE, Kwang Yong OH
  • Patent number: 9741907
    Abstract: A light emitting diode package includes a light emitting diode chip disposed in a housing, a first phosphor configured to emit green light, and a second phosphor configured to emit red light. White light is configured to be formed by a synthesis of light emitted from the light emitting diode chip, the first phosphor, and the second phosphor. The second phosphor has a chemical formula of A2MF6:Mn4+, A is one of Li, Na, K, Rb, Ce, and NH4, and M is one of Si, Ti, Nb, and Ta, and the Mn4+of the second phosphor has a mole range of about 0.02 to about 0.035 times the M.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: August 22, 2017
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Kwang Yong Oh, Ho Jun Byun, Hyuck Jun Kim, Ki Bum Nam, Su Yeon Kim
  • Patent number: 9735322
    Abstract: The present invention relates to a light-emitting diode package comprising a high-strength molding part. The light-emitting diode package, according to the present invention, comprises: a housing; at least one light-emitting diode chip disposed in the housing; a molding part which covers the at least one light-emitting diode chip; a first phosphor excited by the at least one light-emitting diode chip so as to emit green light; and a second phosphor excited by the at least one light-emitting diode chip so as to emit red light, wherein the molding part has an oxygen gas permeability of 140 cc/m2/day or less, and the second phosphor can emit red light having a full width at half maximum of 20 nm or less.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: August 15, 2017
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Kwang Yong Oh, Ho Jun Byun, Ki Bum Nam
  • Patent number: 9698317
    Abstract: The light emitting device includes: an ultraviolet light emitting diode emitting light in an ultraviolet wavelength region; and blue phosphors, green phosphors, and red phosphors excited by the ultraviolet light emitting diode, wherein white light is formed by synthesis of the light emitted from the ultraviolet light emitting diode, light emitted from the blue phosphors, light emitted from the green phosphors, and light emitted from the red phosphors, the white light includes ultraviolet light, green light, blue light, and red light, an intensity of a peak wavelength of the green light is in a range of 1.8 to 2.1 times the intensity of a peak wavelength of the blue light, and an intensity of a peak wavelength of the red light is in a range of 2.8 to 3.1 times the intensity of the peak wavelength of the blue light.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: July 4, 2017
    Assignee: SEOUL SEMICONDUCTOR CO., LTD.
    Inventors: Sang Shin Park, Kwang Yong Oh, Myung Jin Kim, Ki Bum Nam
  • Patent number: 9590149
    Abstract: A light emitting device is disclosed. The light emitting device includes: a light emitting diode emitting light having a peak wavelength in the range of 415 nm to 435 nm; and a wavelength conversion unit disposed on the light emitting diode, wherein the wavelength conversion unit includes cyan phosphors emitting light having a peak wavelength in a cyan light wavelength band and red phosphors emitting light having a peak wavelength in a red light wavelength band, and a ratio of an output of light having a wavelength in the range of 435 nm to 465 nm to a total output of light emitted from the light emitting device is approximately equal to or less than 3%.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: March 7, 2017
    Assignee: SEOUL SEMICONDUCTOR CO., LTD.
    Inventors: Michael Lim, Hyuck Jung Choi, Kwang Yong Oh, Myung Jin Kim, Ki Bum Nam, Sang Shin Park, Ji Youn Oh
  • Publication number: 20170018692
    Abstract: The present invention relates to a light-emitting diode package comprising a high-strength molding part. The light-emitting diode package, according to the present invention, comprises: a housing; at least one light-emitting diode chip disposed in the housing; a molding part which covers the at least one light-emitting diode chip; a first phosphor excited by the at least one light-emitting diode chip so as to emit green light; and a second phosphor excited by the at least one light-emitting diode chip so as to emit red light, wherein the molding part has an oxygen gas permeability of 140 cc/m2/day or less, and the second phosphor can emit red light having a full width at half maximum of 20 nm or less.
    Type: Application
    Filed: February 23, 2015
    Publication date: January 19, 2017
    Inventors: Kwang Yong OH, Ho Jun BYUN, Ki Bun NAM
  • Publication number: 20160104820
    Abstract: A light emitting device is disclosed. The light emitting device includes: a light emitting diode emitting light having a peak wavelength in the range of 415 nm to 435 nm; and a wavelength conversion unit disposed on the light emitting diode, wherein the wavelength conversion unit includes cyan phosphors emitting light having a peak wavelength in a cyan light wavelength band and red phosphors emitting light having a peak wavelength in a red light wavelength band, and a ratio of an output of light having a wavelength in the range of 435 nm to 465 nm to a total output of light emitted from the light emitting device is approximately equal to or less than 3%.
    Type: Application
    Filed: February 17, 2015
    Publication date: April 14, 2016
    Inventors: Michael Lim, Hyuck Jung Choi, Kwang Yong Oh, Myung Jin Kim, Ki Bum Nam, Sang Shin Park, Ji Youn Oh
  • Publication number: 20160049560
    Abstract: A light emitting diode package includes a light emitting diode chip disposed in a housing, a first phosphor configured to emit green light, and a second phosphor configured to emit red light. White light is configured to be formed by a synthesis of light emitted from the light emitting diode chip, the first phosphor, and the second phosphor. The second phosphor has a chemical formula of A2MF6:Mn4+, A is one of Li, Na, K, Rb, Ce, and NH4, and M is one of Si, Ti, Nb, and Ta, and the Mn4+ of the second phosphor has a mole range of about 0.02 to about 0.035 times the M.
    Type: Application
    Filed: August 18, 2015
    Publication date: February 18, 2016
    Inventors: Kwang Yong OH, Ho Jun BYUN, Hyuck Jun KIM, Ki Bum NAM, Su Yeon KIM
  • Publication number: 20150270449
    Abstract: The light emitting device includes: an ultraviolet light emitting diode emitting light in an ultraviolet wavelength region; and blue phosphors, green phosphors, and red phosphors excited by the ultraviolet light emitting diode, wherein white light is formed by synthesis of the light emitted from the ultraviolet light emitting diode, light emitted from the blue phosphors, light emitted from the green phosphors, and light emitted from the red phosphors, the white light includes ultraviolet light, green light, blue light, and red light, an intensity of a peak wavelength of the green light is in a range of 1.8 to 2.1 times the intensity of a peak wavelength of the blue light, and an intensity of a peak wavelength of the red light is in a range of 2.8 to 3.1 times the intensity of the peak wavelength of the blue light.
    Type: Application
    Filed: March 20, 2015
    Publication date: September 24, 2015
    Inventors: Sang Shin Park, Kwang Yong Oh, Myung Jin Kim, Ki Bum Nam