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:
Jan. 27, 2026
Filed:
Jul. 20, 2021
Mui Lab, Inc., Kyoto, JP;
Munehiko Sato, Kyoto, JP;
MUI LAB, INC., Kyoto, JP;
Abstract
Provided are a display panel and an operation display panel which improve visibility when emitting light in order to cope even with a higher-definition display while reducing the thickness of a device and which can be manufactured at low cost. The present invention comprises: a light emitting element array substrate in which light emitting elements containing no fluorescent body are two-dimensionally arranged; a fluorescent sheet or fluorescent resin base material laminated on the light emitting element array substrate; a light guide path-forming base material that is laminated on the fluorescent sheet or fluorescent resin base material and forms a light guide path in an optical axis direction of the light emitting element; and an opaque thin layer that covers an exit surface side of the light guide path-forming base material.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile