US Patent Issued to HITACHI-LG DATA STORAGE on Feb. 4 for "Light-guide plate, manufacturing method for the same, light-guide plate module, and image display device" (Japanese Inventor)

ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,216,303, issued on Feb. 4, was assigned to HITACHI-LG DATA STORAGE INC. (Tokyo).

"Light-guide plate, manufacturing method for the same, light-guide plate module, and image display device" was invented by Hiroyuki Minemura (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "The light-guide plate includes a substrate, an incidence diffraction grating that diffracts incident light, and an emission diffraction grating that emits light from the substrate, the light being diffracted by the incidence diffraction grating. The emission diffraction grating is formed of a recessed/projected pattern formed on a substrate surface, the recessed/projected pattern inc...