ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,416,399, issued on Sept. 16, was assigned to Apple Inc. (Cupertino, Calif.).
"Photoluminescence keyboard glyph lighting" was invented by Chang Zhang (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A keycap assembly can include a keycap that includes a chargeable light emissive material. The keycap assembly can include a light sensor configured to sense light emitted by or incident to the chargeable light emissive material. The keycap assembly can further include a microcontroller. In certain implementations, the microcontroller includes a processor and a memory device storing instructions that, when executed by the processor, cause the...