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:
Jul. 14, 2020
Filed:
Apr. 03, 2018
Kabushiki Kaisha Tokai Rika Denki Seisakusho, Aichi, JP;
Masato Kozuka, Aichi, JP;
Mitsuru Naruse, Aichi, JP;
KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO, Aichi, JP;
Abstract
A display switching device includes a light source emitting light having a first polarization direction and light having a second polarization direction different from the first polarization direction, a first polarizing plate having a first display region configured to transmit light in the first polarization direction and display a first display mark, and a second polarizing plate having a second display region configured to transmit light in the second polarization direction and display a second display mark. The second polarizing plate is arranged such that the first display region at least partially overlaps with the second display region. At least a part of one of the first display region and the second display region includes a mixed part in which a polarization part with a polarizing function and a non-polarization part without any polarizing function are mixed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile