ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,885, issued on April 21, was assigned to E Ink Corp. (Billerica, Mass.).
"Display device" was invented by Peiman Hosseini (London), Clement Talagrand (Chamrousse, France) and Noboru Yamada (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Display devices for displaying a pattern are disclosed. In one arrangement, a pixel element having a layered structure is provided. The layered structure comprises at least one phase change material layer thermally switchable between at least a stable high extinction coefficient state and a stable low extinction coefficient state. A ratio of a mean average over the visible spectrum of the extinction coe...