ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,687, issued on Oct. 21, was assigned to Nippon Sheet Glass Co. Ltd. (Tokyo).

"Display device" was invented by Norihisa Hokari (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A display panel according to the present invention includes a display panel and a cover member disposed on the display panel. The cover member includes a glass plate that is chemically strengthened and has a first surface and a second surface in which the depth of the compressive stress layer (dol) is larger than that in the first surface, and an optical layer that is layered on the second surface and faces the outside."

The patent was filed on June 28, 2021, under Applic...