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:
Jun. 23, 2026
Filed:
Jul. 12, 2023
Darfon Electronics Corp., Taoyuan City, TW;
Ying-Lan Liu, Taoyuan City, TW;
Hsin-Cheng Ho, Taoyuan City, TW;
Heng-Yi Huang, Taoyuan City, TW;
Chao-Yu Chen, Taoyuan City, TW;
DARFON ELECTRONICS CORP., Taoyuan City, TW;
Abstract
A backlight module is configured to illuminate at least one keycap. The backlight module includes a shielding sheet, a lighting board and a protrusion structure. The lighting board includes an illuminant unit and a pair of footprints respectively connecting the illuminant unit. Each of the footprints includes at least one hollow area, and the at least one hollow area overlaps at least a portion of the illuminant unit. The protrusion structure is formed at the shielding sheet. The protrusion structure protrudes towards the light board and at least partially overlaps the pair of footprints, so that the backlight module diffuses light of the illuminant between the protrusion structure and the footprints.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile