Patents by Inventor Lee Hwa Song

Lee Hwa Song 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).

  • Optical film, liquid crystal display device including same, and manufacturing method therefor
    Patent number: 10591655
    Abstract: The present invention relates to an optical film including a polarizing film, and a manufacturing method therefor. The optical film of the present invention can include the polarizing film having an orthogonal transmittance of less than 0.5% in a wavelength of a range of 405-735 nm.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: March 17, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventors: A Ra Jo, Bae Wook Lee, Lee Hwa Song, Ki Ho Park, Boem Deok Lee
  • OPTICAL FILM, LIQUID CRYSTAL DISPLAY DEVICE INCLUDING SAME, AND MANUFACTURING METHOD THEREFOR
    Publication number: 20170371082
    Abstract: The present invention relates to an optical film including a polarizing film, and a manufacturing method therefor. The optical film of the present invention can include the polarizing film having an orthogonal transmittance of less than 0.5% in a wavelength of a range of 405-735 nm.
    Type: Application
    Filed: May 13, 2015
    Publication date: December 28, 2017
    Inventors: A Ra Jo, Bae Wook Lee, Lee Hwa Song, Ki Ho Park, Boem Deok Lee
  • Graphene-Based Composite and Method of Preparing the Same
    Publication number: 20140183415
    Abstract: A graphene-based composite includes graphene and a structure former contacting the graphite, wherein the structure former is a metal oxide or a carbon compound and includes pores therein, and the graphene-based composite has a porous particle structure. The graphene-based composite can have a large specific surface area and excellent charge storage capacity.
    Type: Application
    Filed: December 17, 2013
    Publication date: July 3, 2014
    Applicant: Cheil Industries Inc.
    Inventor: Lee Hwa SONG
  • Brightness-enhanced multilayer optical film with low reflectivity for display and organic light emitting diode display using the same
    Patent number: 7446462
    Abstract: The subject invention features a low-reflectivity, brightness-enhancing multilayer optical film for enhancing the brightness of an organic light emission diode (OLED) display and imparting anti-reflection performance to the display.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: November 4, 2008
    Assignee: Cheil Industries, Inc.
    Inventors: Sang Kyoo Lim, Tae Kyung Kim, Hwi Min Seo, Lee Hwa Song