US Patent Issued to Shanjin Optoelectronics (Suzhou) on July 8 for "Device and method for inspecting liquid crystal stain of polarizing plate" (South Korean Inventors)

ALEXANDRIA, Va., July 9 -- United States Patent no. 12,352,701, issued on July 8, was assigned to Shanjin Optoelectronics (Suzhou) Co. LTD. (China).

"Device and method for inspecting liquid crystal stain of polarizing plate" was invented by Jae Il Ryu (Daejeon, South Korea), Taek Geun Nam (Daejeon, South Korea) and Je Hyuk Yoo (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device for inspecting a liquid crystal stain of a polarization plate, the device comprising a surface light source; a first polarization member; a polarization plate including a liquid crystal film; a second polarization member; and an inspection source, and a method using the device, the device and the method capab...