US Patent Issued to Japan Display on Sept. 1 for "Optical element and lighting device" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,723,739, issued on Sept. 1, was assigned to Japan Display Inc. (Tokyo).

"Optical element and lighting device" was invented by Tae Kurokawa (Tokyo), Takeo Koito (Tokyo) and Kojiro Ikeda (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical element includes a first liquid crystal cell and a second liquid crystal cell. The first liquid crystal cell and the second liquid crystal cell are stacked. Each of the first liquid crystal cell and the second liquid crystal cell includes a first substrate on which a first transparent electrode and a second transparent electrode are alternately and repeatedly arranged in a first direction, a second substrate...