Patents by Inventor Byung-Kyun Kim

Byung-Kyun Kim 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).

  • White phosphor, light emission device including the same, and liquid crystal display device including the light emission device as backlight unit
    Patent number: 8228465
    Abstract: A white phosphor including: 40 to 50 parts by weight of a blue phosphor selected from the group consisting of ZnS:(Ag,Cl), ZnS:(Ag,Al), ZnS:(Ag,Al,Cl), and a combination thereof; 20 to 30 parts by weight of a green phosphor (Sr1-xCax)Ga2S4:Eu (0?x<0.2); and 20 to 30 parts by weight of a red phosphor selected from the group consisting of Y2O3:Eu, Y2O3:(Eu,Tb), Y2O2S:Eu, Y2O2S:(Eu,Tb), and combinations thereof. The white phosphor can be included in a light emission device. The light emission device can be included in a liquid crystal display.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: July 24, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yong-Chan You, Jae-Woo Bae, Gyeong-Jae Heo, Kyu-Chan Park, Sang-Hyuk Lee, Sun-Hwa Kwon, Ji-Hyun Kim, Ui-Song Do, Young-Suk Cho, Byung-Kyun Kim, Hui-Young Ku, Yoo-Jung Lee
  • White phosphor, light emission device including the same, and display device
    Patent number: 7952266
    Abstract: A white phosphor, and a light emission device including the white phosphor, and a display device including the white phosphor, the white phosphor including 40 to 45 parts by weight of a blue phosphor selected from the group consisting of ZnS:(Ag,Cl), ZnS:(Ag,Al), ZnS:(Ag,Al,Cl), and combinations thereof; 30 to 40 parts by weight of a green phosphor selected from the group consisting of ZnS:(Cu,Al), ZnS:(Cu,Au,Al), and combinations thereof; and 20 to 25 parts by weight of a red phosphor selected from the group consisting of Y2O3:Eu, Y2O3:(Eu,Tb), Y2O2S:Eu, Y2O2S:(Eu,Tb), and combinations thereof. The white phosphor shows a color temperature of from 12,000K and 14,000K.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: May 31, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yong-Chan You, Jae-Woo Bae, Gyeong-Jae Heo, Sang-Hyuk Lee, Kyu-Chan Park, Sun-Hwa Kwon, Ji-Hyun Kim, Young-Suk Cho, Ui-Song Do, Hui-Young Ku, Yoo-Jung Lee, Byung-Kyun Kim
  • White phosphor, light emission device including the same, and liquid crystal display device including the light emission device as backlight unit
    Patent number: 7839468
    Abstract: A white phosphor, a light emission device including the same, and a liquid crystal display (LCD) including the light emission device as a backlight unit. The white phosphor includes: 40 to 50 parts by weight of a blue phosphor selected from the group consisting of ZnS:(Ag,Cl), ZnS:(Ag,Al), ZnS:(Ag,Al,Cl), and a combination thereof; 23 to 36 parts by weight of a green phosphor including (Sr1-xCax)Ga2S4:Eu (0?x<0.2) and a compound selected from the group consisting of ZnS:(Cu,Al), ZnS:(Cu,Au,Al), and a combination thereof; and 20 to 30 parts by weight of a red phosphor selected from the group consisting of Y2O3:Eu, Y2O3:(Eu,Tb), Y2O2S:Eu, Y2O2S:(Eu,Tb), and a combination thereof.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: November 23, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yong-Chan You, Jae-Woo Bae, Gyeong-Jae Heo, Kyu-Chan Park, Sang-Hyuk Lee, Sun-Hwa Kwon, Ji-Hyun Kim, Young-Suk Cho, Ui-Song Do, Byung-Kyun Kim, Hui-Young Ku, Yoo-Jung Lee
  • WHITE PHOSPHOR, LIGHT EMISSION DEVICE INCLUDING THE SAME, AND LIQUID CRYSTAL DISPLAY DEVICE INCLUDING THE LIGHT EMISSION DEVICE AS BACKLIGHT UNIT
    Publication number: 20090174841
    Abstract: A white phosphor, a light emission device including the same, and a liquid crystal display (LCD) including the light emission device as a backlight unit. The white phosphor includes: 40 to 50 parts by weight of a blue phosphor selected from the group consisting of ZnS:(Ag,Cl), ZnS:(Ag,Al), ZnS:(Ag,Al,Cl), and a combination thereof; 23 to 36 parts by weight of a green phosphor including (Sr1-xCax)Ga2S4:Eu (0?x<0.2) and a compound selected from the group consisting of ZnS:(Cu,Al), ZnS:(Cu,Au,Al), and a combination thereof; and 20 to 30 parts by weight of a red phosphor selected from the group consisting of Y2O3:Eu, Y2O3:(Eu,Tb), Y2O2S:Eu, Y2O2S:(Eu,Tb), and a combination thereof.
    Type: Application
    Filed: August 27, 2008
    Publication date: July 9, 2009
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Yong-Chan YOU, Jae-Woo Bae, Gyeong-Jae Heo, Kyu-Chan Park, Sang-Hyuk Lee, Sun-Hwa Kwon, Ji-Hyun Kim, Young-Suk Cho, Ui-Song Do, Byung-Kyun Kim, Hui-Young Ku, Yoo-Jung Lee
  • WHITE PHOSPHOR, LIGHT EMISSION DEVICE INCLUDING THE SAME, AND LIQUID CRYSTAL DISPLAY DEVICE INCLUDING THE LIGHT EMISSION DEVICE AS BACKLIGHT UNIT
    Publication number: 20090135339
    Abstract: A white phosphor including: 40 to 50 parts by weight of a blue phosphor selected from the group consisting of ZnS:(Ag,Cl), ZnS:(Ag,Al), ZnS:(Ag,Al,Cl), and a combination thereof; 20 to 30 parts by weight of a green phosphor (Sr1?xCax)Ga2S4:Eu (0?x<0.2); and 20 to 30 parts by weight of a red phosphor selected from the group consisting of Y2O3:Eu, Y2O3:(Eu,Tb), Y2O2S:Eu, Y2O2S:(Eu,Tb), and combinations thereof. The white phosphor can be included in a light emission device. The light emission device can be included in a liquid crystal display.
    Type: Application
    Filed: August 27, 2008
    Publication date: May 28, 2009
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Yong-Chan YOU, Jae-Woo Bae, Gyeong-Jae Heo, Kyu-Chan Park, Sang-Hyuk Lee, Sun-Hwa Kwon, Ji-Hyun Kim, Ui-Song Do, Young-Suk Cho, Byung-Kyun Kim, Hui-Young Ku, Yoo-Jung Lee
  • WHITE PHOSPHOR, LIGHT EMISSION DEVICE INCLUDING THE SAME, AND DISPLAY DEVICE
    Publication number: 20090051268
    Abstract: A white phosphor, and a light emission device including the white phosphor, and a display device including the white phosphor, the white phosphor including 40 to 45 parts by weight of a blue phosphor selected from the group consisting of ZnS:(Ag,Cl), ZnS:(Ag,Al), ZnS:(Ag,Al,Cl), and combinations thereof; 30 to 40 parts by weight of a green phosphor selected from the group consisting of ZnS:(Cu,Al), ZnS:(Cu,Au,Al), and combinations thereof; and 20 to 25 parts by weight of a red phosphor selected from the group consisting of Y2O3:Eu, Y2O3:(Eu,Tb), Y2O2S:Eu, Y2O2S:(Eu,Tb), and combinations thereof. The white phosphor shows a color temperature of from 12,000K and 14,000K.
    Type: Application
    Filed: August 6, 2008
    Publication date: February 26, 2009
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Yong-Chan You, Jae-Woo Bae, Gyeong-Jae Heo, Sang-Hyuk Lee, Kyu-Chan Park, Sun-Hwa Kwon, Ji-Hyun Kim, Young-Suk Cho, Ul-Song Do, Hui-Young Ku, Yoo-Jung Lee, Byung-Kyun Kim