ALEXANDRIA, Va., April 9 -- United States Patent no. 12,271,017, issued on April 8, was assigned to Acer Inc. (New Taipei, Taiwan).
"Key structure" was invented by Ching-Yi Lu (New Taipei, Taiwan), Ming-Cheng Wu (New Taipei, Taiwan) and Yi-Heng Lee (New Taipei, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A key structure includes a light source and a light guiding assembly, a transparent cover, a semi-transparent and semi-reflective mirror, and a reflection mirror disposed above the light source. The light guiding assembly includes a center column and a platform surrounding the center column. A bottom surface of the center column faces the light source. The transparent cover is disposed on the light...