Patents by Inventor Jongryul CHOI

Jongryul CHOI 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: 8730311
    Abstract: The present disclosure relates to a manufacturing device of a film patterned retarder for a three dimensional display devices. The present disclosure suggests a device for manufacturing a film patterned retarder comprising: a light source configured to irradiate an ultra violet light to an exposure area; a left polarizer and a right polarizer disposed in neighboring on a same leveled plane within the exposure area; a left pattern mask overlapping with the left polarizer and a right pattern mask overlapping with the right polarizer; and a film roller configured to rotate with a constant speed, to contact a base film on its surface and to move the base film with the constant speed. The manufacturing process is very simple and the cost for manufacturing the film patterned retarder according to the present disclosure is saved.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: May 20, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Yongbum Choi, Jongryul Choi, Jaeyeol Heo, Sunghoon Kim
  • Publication number: 20120212714
    Abstract: The present disclosure relates to a manufacturing device of a film patterned retarder for a three dimensional display devices. The present disclosure suggests a device for manufacturing a film patterned retarder comprising: a light source configured to irradiate an ultra violet light to an exposure area; a left polarizer and a right polarizer disposed in neighboring on a same leveled plane within the exposure area; a left pattern mask overlapping with the left polarizer and a right pattern mask overlapping with the right polarizer; and a film roller configured to rotate with a constant speed, to contact a base film on its surface and to move the base film with the constant speed. The manufacturing process is very simple and the cost for manufacturing the film patterned retarder according to the present disclosure is saved.
    Type: Application
    Filed: December 19, 2011
    Publication date: August 23, 2012
    Inventors: Yongbum CHOI, Jongryul CHOI, Jaeyeol HEO, Sunghoon KIM