ALEXANDRIA, Va., April 21 -- United States Patent no. 12,610,671, issued on April 21, was assigned to Apple Inc. (Cupertino, Calif.).

"Pixel optical structures for display optical efficiency" was invented by Young Cheol Yang (Sunnyvale, Calif.), Young Seok Kim (San Jose, Calif.), Aaron L Holsteen (Centennial, Colo.), Cheng Cheng (Cupertino, Calif.), Chin Wei Hsu (Hsinchu, Taiwan), Hsin I Lu (Cupertino, Calif.), Ileana G. Rau (Cupertino, Calif.), Jaein Choi (Sunnyvale, Calif.), James M Perkins (Mountain View, Calif.), James P Ibbetson (Goleta, Calif.), Joy M Johnson (San Francisco), Jui-Chih Liao (Hsinchu, Taiwan), Steven E Molesa (San Jose, Calif.), Sunggu Kang (San Jose, Calif.), Yang Deng (San Jose, Calif.) and Zhibing Ge (Los Altos, Cal...