ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,433,158, issued on Sept. 30, was assigned to SHAANXI LIGHTE OPTOELECTRONICS MATERIAL Co. LTD. (Xi'an, China).

"Nitrogen-containing compound, organic electroluminescent device, and electronic apparatus" was invented by Xianbin Xu (Xi'an, China) and Lei Yang (Xi'an, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure relates to the technical field of organic electroluminescent materials, and provides a nitrogen-containing compound and an organic electroluminescent device comprising the same, and an electronic apparatus. The compound of the disclosure adopts naphtho[2,1-d]oxazole as a core structure, and the compound of the disclosure used...