US Patent Issued to SAMSUNG DISPLAY on May 27 for "Display device having organic planarization layer with valley and protrusion structures" (South Korean Inventor)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,317,691, issued on May 27, was assigned to SAMSUNG DISPLAY Co. LTD. (Yongin-si, South Korea).

"Display device having organic planarization layer with valley and protrusion structures" was invented by Cha Dong Kim (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A display device includes a plurality of sub-pixels disposed on a display area of the display device and including a first electrode, a light emitting layer, and a second electrode, a pixel-defining layer defining emission areas of the plurality of sub-pixels, respectively, an organic planarization layer disposed on the pixel-defining layer and comprising one or more valleys ove...