The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 2025
Filed:
Mar. 24, 2022
Alps Alpine Co., Ltd, Tokyo, JP;
Katsunari Ashimine, Fukushima, JP;
Alps Alpine Co., LTD, Tokyo, JP;
Abstract
Implementations of a display device of the present disclosure include a transparent light guide plate in which a light guide plate image that is an original video of an aerial image is formed on a bottom portion, a light source configured to emit light L from a side portion of the light guide plate toward the inside of the light guide plate, a polarization beam splitter disposed in parallel with the light guide plate and above the light guide plate, a λ/4 plate disposed below the light guide plate, and a retroreflective member disposed in parallel with the light guide plate and below the λ/4 plate, which retroreflects the light guide plate image to display the aerial image.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile