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:
Aug. 17, 2021
Filed:
Apr. 04, 2018
Koito Manufacturing Co., Ltd., Tokyo, JP;
Ryuho Sato, Shizuoka, JP;
Akinori Matsumoto, Shizuoka, JP;
Haruhiko Iyoda, Shizuoka, JP;
Hiroya Koizumi, Shizuoka, JP;
KOITO MANUFACTURING CO., LTD., Tokyo, JP;
Abstract
A three-dimensional surface display device that includes a plurality of light-emitting elements that are mounted on a mounting member is disclosed. The three-dimensional surface display device includes a plurality of light guide portions, each of which includes a light incidence surface on one end side and a light extraction surface on the other end side. The light incidence surface is arranged to face the corresponding light emitting element. The plurality of light guide portions are different in at least one length, and the light extraction surfaces are arranged three-dimensionally adjacent to each other.