ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,554,135, issued on Feb. 17, was assigned to PANASONIC AUTOMOTIVE SYSTEMS Co. LTD. (Kanagawa, Japan).
"Display device" was invented by Kosuke Imawaka (Kyoto, Japan), Ken'ichi Kasazumi (Osaka, Japan) and Keiji Sugiyama (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A display device includes a light guide body including first holographic optical element and a second holographic optical element, and an image light emitter that emits image light to the light guide body. In addition, the first holographic optical element includes a plurality of first cells for emitting first image light toward the second holographic optical element, the first im...