Patents by Inventor Charles Joo

Charles Joo 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: 8770080
    Abstract: A cutting device that facilitates a cutting operation of a glass substrate and reduces internal defects that can be caused by surface cracks. The cutting wheel includes a cutting blade formed along a circumference thereof with respect to a rotation axis, wherein first and second slopes of the cutting blade are formed in an asymmetrical shape about an edge of the cutting blade where the first and second slopes meet each other.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: July 8, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Oh-June Kwon, Seung-Yong Song, Young-Seo Choi, Jin-Hwan Jeon, Sun-Young Jung, Ji-Hun Ryu, Charles Joo, Kwan-Hee Lee, Min-Soo Kim
  • Patent number: 8604465
    Abstract: An organic light-emitting diode display device includes a substrate, a display unit on the substrate, a touch unit facing the substrate, and a sealing portion surrounding the display unit. The sealing portion couples the substrate to the touch unit and includes glass frit. The touch unit includes an encapsulation substrate, a first conductive layer on the encapsulation substrate, an insulating layer on a portion of the first conductive layer and the encapsulation substrate, and a second conductive layer on the first conductive layer and the insulating layer. The insulating layer of the touch unit includes an organosilicon compound and has a thermal decomposition temperature of about 360° C. or more.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: December 10, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Yong Song, Young-Seo Choi, Jin-Hwan Jeon, Oh-June Kwon, Sun-Young Jung, Charles Joo, Ji-Hun Ryu
  • Patent number: 8242688
    Abstract: An organic light emitting display and a method of manufacturing the same are disclosed. In one embodiment, the display includes i) a first substrate, ii) a second substrate facing the first substrate and iii) a display unit formed between the first and second substrates and including organic light emitting diodes (OLEDs). The display further includes i) a sealant formed between the first and second substrates so as to substantially surround the display unit, wherein the first and second substrates are bonded to each other via the sealant and ii) a filler formed at an inner side of the sealant to cover the display unit, and wherein a magnetic substance is dispersed in the filler.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: August 14, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Oh-June Kwon, Seung-Yong Song, Young-Seo Choi, Ji-Hun Ryu, Jin-Hwan Jeon, Sun-Young Jung, Charles Joo, Kwan-Hee Lee, Min-Soo Kim
  • Publication number: 20120037916
    Abstract: An organic light-emitting diode display device includes a substrate, a display unit on the substrate, a touch unit facing the substrate, and a sealing portion surrounding the display unit. The sealing portion couples the substrate to the touch unit and includes glass frit. The touch unit includes an encapsulation substrate, a first conductive layer on the encapsulation substrate, an insulating layer on a portion of the first conductive layer and the encapsulation substrate, and a second conductive layer on the first conductive layer and the insulating layer. The insulating layer of the touch unit includes an organosilicon compound and has a thermal decomposition temperature of about 360° C. or more.
    Type: Application
    Filed: March 29, 2011
    Publication date: February 16, 2012
    Inventors: Seung-Yong Song, Young-Seo Choi, Jin-Hwan Jean, Oh-June Kwon, Sun-Young Jung, Charles Joo, Ji-Hun Ryu
  • Publication number: 20110248625
    Abstract: An organic light emitting display and a method of manufacturing the same are disclosed. In one embodiment, the display includes i) a first substrate, ii) a second substrate facing the first substrate and iii) a display unit formed between the first and second substrates and comprising organic light emitting diodes (OLEDs). The display further includes i) a sealant formed between the first and second substrates so as to substantially surround the display unit, wherein the first and second substrates are bonded to each other via the sealant and ii) a filler formed at an inner side of the sealant to cover the display unit, wherein a magnetic substance is dispersed in the filler.
    Type: Application
    Filed: March 11, 2011
    Publication date: October 13, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Oh-June Kwon, Seung-Yong Song, Young-Seo Choi, Ji-Hun Ryu, Jin-Hwan Jeon, Sun-Young Jung, Charles Joo, Kwan-Hee Lee, Min-Soo Kim
  • Publication number: 20110174132
    Abstract: A cutting device that facilitates a cutting operation of a glass substrate and reduces internal defects that can be caused by surface cracks. The cutting wheel includes a cutting blade formed along a circumference thereof with respect to a rotation axis, wherein first and second slopes of the cutting blade are formed in an asymmetrical shape about an edge of the cutting blade where the first and second slopes meet each other.
    Type: Application
    Filed: November 4, 2010
    Publication date: July 21, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Oh-June KWON, Seung-Yong SONG, Young-Seo CHOI, Jin-Hwan JEON, Sun-Young JUNG, Ji-Hun RYU, Charles JOO, Kwan-Hee LEE, Min-Soo KIM