Patents by Inventor Hwang Un Seo

Hwang Un Seo 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: 20100119723
    Abstract: An apparatus for coating a polyimide layer includes a print table for receiving a substrate thereon, an inkjet head positioned over the print table and having a jetting surface with a plurality of nozzles for jetting polyimide liquid onto the substrate, and a polyimide liquid supply tank for supplying polyimide liquid, and a wiper movable from one side of the jetting surface to an other side of the jetting surface while the wiper contacts the jetting surface of the inkjet head.
    Type: Application
    Filed: January 21, 2010
    Publication date: May 13, 2010
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Ki Du CHO, Bong Chul KIM, Hui Jae LEE, Sun Ja KIM, Hwang Un SEO, Hang Sup CHO, Eun Mi KIM
  • Patent number: 7673580
    Abstract: An apparatus for coating a polyimide layer includes a print table for receiving a substrate thereon, an inkjet head positioned over the print table and having a jetting surface with a plurality of nozzles for jetting polyimide liquid onto the substrate, and a polyimide liquid supply tank for supplying polyimide liquid, and a wiper movable from one side of the jetting surface to an other side of the jetting surface while the wiper contacts the jetting surface of the inkjet head.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: March 9, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Ki Du Cho, Bong Chul Kim, Hui Jae Lee, Sun Ja Kim, Hwang Un Seo, Hang Sup Cho, Eun Mi Kim
  • Publication number: 20070275176
    Abstract: An apparatus for coating a polyimide layer includes a print table for receiving a substrate thereon, an inkjet head positioned over the print table and having a jetting surface with a plurality of nozzles for jetting polyimide liquid onto the substrate, and a polyimide liquid supply tank for supplying polyimide liquid, and a wiper movable from one side of the jetting surface to an other side of the jetting surface while the wiper contacts the jetting surface of the inkjet head.
    Type: Application
    Filed: December 29, 2006
    Publication date: November 29, 2007
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventors: Ki Du Cho, Bong Chul Kim, Hui Jae Lee, Sun Ja Kim, Hwang Un Seo, Hang Sup Cho, Eun Mi Kim
  • Publication number: 20070229579
    Abstract: An apparatus for coating polyimide layer includes a print table for affixing a substrate thereon, an inkjet head installed over the print table and having a jetting surface with a plurality of nozzles for jetting polyimide liquid onto the substrate, a polyimide liquid supply tank for receiving a polyimide liquid therein, a cleaning liquid supply tank for receiving cleaning liquid, a wiper cleaning bar adjacent to the cleaning liquid supply tank, and a wiper movable from one side of the jetting surface to an other side of the jetting surface while the wiper contacts the jetting surface of the inkjet head, and rotatable to dip the wiper into the cleaning liquid and then contact the wiper cleaning bar so as to remove cleaning liquid from the wiper.
    Type: Application
    Filed: December 27, 2006
    Publication date: October 4, 2007
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventor: Hwang Un Seo
  • Publication number: 20070231497
    Abstract: An apparatus for coating polyimide layer includes a print table, an inkjet head, and a polyimide liquid supply tank, wherein the inkjet head is configured to jet the polyimide liquid in a scan-coating and be shifted by a predetermined shift pitch in a direction until 2N times of scan-coating occurs in which N?2 and N is a natural number. A method for coating polyimide layer includes placing a substrate, loading a polyimide liquid vessel into a polyimide liquid supply tank, jetting the polyimide liquid onto the substrate in a scan-coating, repeating the jetting the polyimide liquid onto the substrate in a scan-coating and the shifting the inkjet head by a predetermined shift pitch until 2N times of scan-coating occurs in which N?2 and N is a natural number.
    Type: Application
    Filed: December 29, 2006
    Publication date: October 4, 2007
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventors: Ki Du Cho, Bong Chul Kim, Hui Jae Lee, Sung Ja Kim, Hwang Un Seo, Hang Sup Cho, Eun Mi Kim