Patents by Inventor Chang-Soon Jang

Chang-Soon Jang 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: 8363186
    Abstract: A thin film transistor includes: a substrate; a thin film transistor formed on the substrate; a first color filter and a second color filter formed on the thin film transistor and each having a through hole; a capping layer formed on the first color filter and the second color filter; and a pixel electrode formed on the capping layer and connected to the thin film transistor through the through hole, wherein the capping layer formed on the first color filter has a first opening exposing the through hole of the first color filter, the size of the first opening is larger than the size of the through hole, the capping layer formed on the second color filter has a second opening disposed inside the through hole of the second color filter, and the size of the second opening is smaller than the size of the through hole. Accordingly, the capping layer completely covers the green color filter which prevents damage to the green color filter in a dry etching process, and also prevents changes of a color coordinate.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: January 29, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Seuk Kim, Young-Je Cho, Chul Huh, Yong-Jo Kim, Sung-Hoon Kim, Yui-Ku Lee, Chang-Soon Jang
  • Patent number: 8335046
    Abstract: A color filter substrate includes a plurality of color filters and a first dummy pattern. The color filters are formed in a display area. The color filters include a plurality of colors. The first dummy pattern is formed in a peripheral area surrounding the display area. The first dummy pattern has a color identical to one of the colors. An edge portion of the first dummy pattern corresponding to an apex of the display area is rounded. Therefore, the reliability of a color filter manufacturing process may be improved, the reliability of the color filter may be improved, and the generation of stain defects having a radial shape may be prevented, so that display quality may be improved.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: December 18, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang-Soon Jang, Jin-Seuk Kim
  • Publication number: 20120300465
    Abstract: A display device includes a light-emitting module and a color filter. The color filter transmits light provided from the light-emitting module and represents a color green which has a y-coordinate between about 0.565 and about 0.578 in CIE 1931 chromaticity diagram.
    Type: Application
    Filed: November 14, 2011
    Publication date: November 29, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sun-Young CHANG, Se-Ah KWON, Chang-Soon JANG
  • Patent number: 8184243
    Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes: a substrate; a red color filter, a green color filter, and a blue color filter arranged on the substrate and respectively including a red pigment, a green pigment, and a blue pigment; and a transparent color filter including a passivation layer including at least one of the red pigment, the green pigment, and the blue pigment, and the passivation layer is simultaneously formed with a spacer, the spacer including the same material as the passivation layer.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: May 22, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Seuk Kim, Byoung-Joo Kim, Yui-Ku Lee, Chang-Soon Jang
  • Publication number: 20110109852
    Abstract: A thin film transistor includes: a substrate; a thin film transistor formed on the substrate; a first color filter and a second color filter formed on the thin film transistor and each having a through hole; a capping layer formed on the first color filter and the second color filter; and a pixel electrode formed on the capping layer and connected to the thin film transistor through the through hole, wherein the capping layer formed on the first color filter has a first opening exposing the through hole of the first color filter, the size of the first opening is larger than the size of the through hole, the capping layer formed on the second color filter has a second opening disposed inside the through hole of the second color filter, and the size of the second opening is smaller than the size of the through hole. Accordingly, the capping layer completely covers the green color filter which prevents damage to the green color filter in a dry etching process, and also prevents changes of a color coordinate.
    Type: Application
    Filed: May 19, 2010
    Publication date: May 12, 2011
    Inventors: Jin-Seuk KIM, Young-Je Cho, Chul Huh, Yong-Jo Kim, Sung-Hoon Kim, Yui-Ku Lee, Chang-Soon Jang
  • Publication number: 20100271577
    Abstract: A display substrate includes a base substrate and first, second and third color filters. The first, second and third color filters are disposed on the base substrate adjacent to each other and convert incident light into color light. At least one of the first, second and third color filters includes pigment particles which are regularly arranged to have refractive index anisotropy.
    Type: Application
    Filed: October 15, 2009
    Publication date: October 28, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Chul HUH, Gwan-Soo KIM, Chang-Soon JANG, Sun-Young CHANG
  • Publication number: 20100177417
    Abstract: A color filter substrate includes a plurality of color filters and a first dummy pattern. The color filters are formed in a display area. The color filters include a plurality of colors. The first dummy pattern is formed in a peripheral area surrounding the display area. The first dummy pattern has a color identical to one of the colors. An edge portion of the first dummy pattern corresponding to an apex of the display area is rounded. Therefore, the reliability of a color filter manufacturing process may be improved, the reliability of the color filter may be improved, and the generation of stain defects having a radial shape may be prevented, so that display quality may be improved.
    Type: Application
    Filed: July 16, 2009
    Publication date: July 15, 2010
    Inventors: Chang-Soon Jang, Jin-Seuk Kim
  • Publication number: 20100085515
    Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes: a substrate; a red color filter, a green color filter, and a blue color filter arranged on the substrate and respectively including a red pigment, a green pigment, and a blue pigment; and a transparent color filter including a passivation layer including at least one of the red pigment, the green pigment, and the blue pigment, and the passivation layer is simultaneously formed with a spacer, the spacer including the same material as the passivation layer.
    Type: Application
    Filed: March 23, 2009
    Publication date: April 8, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jin-Seuk KIM, Byoung-Joo KIM, Yui-Ku LEE, Chang-Soon JANG
  • Publication number: 20090273747
    Abstract: A liquid crystal display and a manufacturing method thereof, including: a first substrate; a thin film transistor formed on the first substrate; a pixel electrode connected to the thin film transistor; a second substrate facing the first substrate; a first spacer formed on the second substrate and overlapping the thin film transistor; a second spacer formed on the second substrate and overlapping the pixel electrode; a common electrode formed on the second substrate, the first spacer, and the second spacer; and a liquid crystal layer disposed between the first substrate and the second substrate, wherein the pixel electrode and the common electrode disposed on the second spacer form a storage capacitor.
    Type: Application
    Filed: April 16, 2009
    Publication date: November 5, 2009
    Inventors: KYOUNG-JU SHIN, Cheol-Woo Park, Chang-Hoon Kim, Chang-Soon Jang