US Patent Issued to KEIWA on Aug. 19 for "Light diffusion sheet, light diffusion sheet laminate, backlight unit, and liquid crystal display device" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,393,078, issued on Aug. 19, was assigned to KEIWA Inc. (Tokyo).

"Light diffusion sheet, light diffusion sheet laminate, backlight unit, and liquid crystal display device" was invented by Chengheng Tsai (Tokyo), Satoshi Shiba (Tokyo) and Yu Kariya (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "One aspect of the present invention is a light diffusion sheet having a first surface on which a plurality of recesses that diffuse light are formed, and a second surface on which a plurality of projections that can transmit light are provided apart from each other."

The patent was filed on May 27, 2022, under Application No. 18/564,130.

*For further infor...