US Patent Issued to ASUSTeK COMPUTER on March 25 for "Light guide device and display apparatus using the same" (Taiwanese Inventors)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,259,548, issued on March 25, was assigned to ASUSTeK COMPUTER INC. (Taipei, Taiwan).

"Light guide device and display apparatus using the same" was invented by Wen-Chang Hung (Taipei, Taiwan) and Yu-Chieh Cheng (Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A light guide substrate, including a light coupling-in region with multiple first gratings, a light expansion region with multiple sub light expansion regions, and a light coupling-out region, is provided. Each sub light expansion region includes multiple second gratings. The sub light expansion regions include a first set of sub light expansion regions and a second set of sub light e...