ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,651, issued on Feb. 24, was assigned to LG Chem Ltd. (Seoul, South Korea).

"Buffer film" was invented by Choong Man Bae (Daejeon, South Korea), Dong Woo Yoo (Daejeon, South Korea), Cheol Hee Lee (Daejeon, South Korea) and Jin Kyu Lee (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A buffer film and an organic light emitting device (OLED) including the same are disclosed herein. In some embodiments, a buffer film comprises a porous metal sheet having average reflectance of 50% or less for light in a wavelength range of 400 to 800 nm. The buffer film can exhibit heat dissipation properties, electromagnetic wave shielding propertie...