ALEXANDRIA, Va., April 7 -- United States Patent no. 12,596,264, issued on April 7, was assigned to Shenzhen Optiave Display Technologies Co. Ltd. (Shenzhen, China).
"Display apparatus" was invented by Liangfu Zhu (Shenzhen, China), Yisheng Zhu (Shenzhen, China) and Tapani Kalervo Levola (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A display apparatus includes an optical engine and a stack of expander devices. The optical engine forms input light which comprises a plurality of input light beams representing an input image. The stack of expander devices forms output light by diffractively expanding the input light. The output light includes a plurality of output light beams representing the...