ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,411,363, issued on Sept. 9, was assigned to Japan Display Inc. (Tokyo).
"Lighting device and optical element" was invented by Takeo Koito (Tokyo), Kojiro Ikeda (Tokyo) and Tae Kurokawa (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lighting device includes a light source, a first liquid crystal cell over the light source, and a second liquid crystal cell over the first liquid crystal cell. The light source includes light-emitting elements arranged in a matrix shape with m rows and n columns. The first and second liquid crystal cells each include: a first substrate; first electrode groups located over the first substrate and arranged in a matri...