Patents by Inventor Hee-Ju Seo

Hee-Ju 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).

  • Patent number: 11963394
    Abstract: A display device includes: a substrate; a display element layer disposed on the substrate, where the display element layer includes a light emitting element which emits light; a polarizing film disposed on the display element layer, where the polarizing film includes a first polarizer having a first absorption axis extending to a first direction and a first transmission axis extending to a second direction orthogonal to the first direction; and a first layer disposed on one surface of the polarizing film, where the first layer has a first phase difference. Light emitted from the display element layer has a polarizing axis, and an angle between the polarizing axis and one of the first absorption axis and the first transmission axis is in a range of about 25 degrees to about 65 degrees.
    Type: Grant
    Filed: September 18, 2023
    Date of Patent: April 16, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hee Young Lee, Eun Mi Seo, Gil Yeong Park, Min Ju Oh
  • Patent number: 11081374
    Abstract: A semiconductor package molding device is provided. The semiconductor package molding device includes a chamber lower part which comprises a lower mold configured to receive a molding target, a chamber upper part configured to engage with the chamber lower part to isolate the inside of a chamber from the outside of the chamber, the chamber upper part including an upper mold configured to form a cavity with the lower mold, a first vent hole located between the chamber upper part and the chamber lower part, the first vent hole configured to discharge gas from the inside of the cavity after the chamber upper part and the chamber lower part engage with each other, a pot which is formed in the lower mold in the chamber lower part, a plunger configured to push up a molding material in the pot, a second vent hole which is formed in a side surface of the pot in the chamber lower part and a cavity vacuum pump configured to discharge gas through the first vent hole and the second vent hole.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: August 3, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee Ju Seo, Jae Won Choi, Sung Bok Hong, Young Jin Hwang
  • Publication number: 20200075363
    Abstract: A semiconductor package molding device is provided. The semiconductor package molding device includes a chamber lower part which comprises a lower mold configured to receive a molding target, a chamber upper part configured to engage with the chamber lower part to isolate the inside of a chamber from the outside of the chamber, the chamber upper part including an upper mold configured to form a cavity with the lower mold, a first vent hole located between the chamber upper part and the chamber lower part, the first vent hole configured to discharge gas from the inside of the cavity after the chamber upper part and the chamber lower part engage with each other, a pot which is formed in the lower mold in the chamber lower part, a plunger configured to push up a molding material in the pot, a second vent hole which is formed in a side surface of the pot in the chamber lower part and a cavity vacuum pump configured to discharge gas through the first vent hole and the second vent hole.
    Type: Application
    Filed: May 2, 2019
    Publication date: March 5, 2020
    Inventors: Hee Ju SEO, Jae Won CHOI, Sung Bok HONG, Young Jin HWANG
  • Patent number: 7501590
    Abstract: A molding resin tablet feeding apparatus may have a tablet weighing unit for weighing a molding resin tablet to sort out a faulty molding resin tablet. The weighing unit may be elastically deformed according to the weight of the molding resin tablet, and may further include a strain gauge for outputting an electric change caused by the elastic deformation. A controller may compare the electric change to tablet weight information to determine the validity of the molding resin tablet.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: March 10, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ok-Sun Jung, Hee-Chul Kang, Byong-Do Na, Young-Jin Hwang, Do-Woo Lee, Yong-Hwan Kim, Hee-Ju Seo
  • Publication number: 20070023208
    Abstract: A molding resin tablet feeding apparatus may have a tablet weighing unit for weighing a molding resin tablet to sort out a faulty molding resin tablet. The weighing unit may be elastically deformed according to the weight of the molding resin tablet, and may further include a strain gauge for outputting an electric change caused by the elastic deformation. A controller may compare the electric change to tablet weight information to determine the validity of the molding resin tablet.
    Type: Application
    Filed: December 27, 2005
    Publication date: February 1, 2007
    Inventors: Ok-Sun Jung, Hee-Chul Kang, Byong-Do Na, Young-Jin Hwang, Do-Woo Lee, Yong-Hwan Kim, Hee-Ju Seo