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:
Mar. 24, 2026
Filed:
Sep. 28, 2023
Darfon Electronics Corp., Taoyuan City, TW;
Yen-Chang Chen, Taoyuan City, TW;
Heng-Yi Huang, Taoyuan City, TW;
Darfon Electronics Corp., Taoyuan City, TW;
Abstract
A backlight module for a lighting keyboard comprises a lighting board including light emitting units, a light guide panel disposed on the lighting board and including light guide holes, and a shielding sheet disposed on the light guide panel. Each light emitting unit is located in each light guide hole. The backlight module is divided into regions including a middle region and two first side regions located outside the middle region. The light guide holes include at least one middle light guide hole in the middle region and at least one first light guide hole in the first side region. A distance between a light emitting unit located in the middle light guide hole and a wall of the middle light guide hole is lesser than a distance between a light emitting unit located in the first light guide hole and a wall of the first light guide hole.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile