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. 22, 2025
Filed:
Sep. 13, 2024
Darfon Electronics Corp., Taoyuan, TW;
Yi-Jui Pan, Taoyuan, TW;
Po-Yueh Chou, Taoyuan, TW;
DARFON ELECTRONICS CORP., Taoyuan, TW;
Abstract
A lighting board includes a substrate having an insulation surface, a plurality of openings penetrating through the substrate, a plurality of coupling members disposed on the substrate and configured to connect to at least one keycap, a lighting circuit disposed on the insulation surface at a side opposite to the coupling members, an illuminant electrically connected to the lighting circuit, and a protective layer disposed on the insulation surface and covering the lighting circuit. A keyboard includes the lighting board, a light guide sheet, and at least one keycap, such that light from the illuminant enters the light guide and propagates transversely to illuminate the at least one keycap.