ALEXANDRIA, Va., March 24 -- United States Patent no. 12,588,382, issued on March 24, was assigned to Universal Display Corp. (Ewing, N.J.).

"Color stable multicolor OLED device structures" was invented by Vadim Adamovich (Yardley, Pa.) and Michael Stuart Weaver (Princeton, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to OLED devices and stacks for OLED devices that include a symmetric emissive-layer architecture. In one embodiment, the present invention relates to an emissive stack having three layers, wherein the top and bottom layers emit light in the same or similar color region while the middle layer emits light in a different color region than the other two layers. ...