ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,461,415, issued on Nov. 4, was assigned to LG Chem Ltd. (Seoul, South Korea).
"Substrate" was invented by Han Min Seo (Daejeon, South Korea), Young Jin Park (Daejeon, South Korea) and Seung Heon Lee (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present application provides a substrate comprising a spacer pattern. The present application can provide a substrate, which is applied to various optical devices, capable of evenly and stably maintaining a gap between substrates while maximally securing an active region without causing any optical defects, including a diffraction phenomenon, and the like. The present application can als...