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. 23, 2024
Filed:
Dec. 15, 2022
Darfon Electronics Corp., Taoyuan, TW;
Chao-Yu Chen, Taoyuan, TW;
DARFON ELECTRONICS CORP., Taoyuan, TW;
Abstract
A backlight keyboard includes a first keyswitch, a first backlight source, a light guide plate and a first board having first and second holes. The light guide plate is applied to the backlight keyboard and a second backlight keyboard including a second keyswitch, a second backlight source and a second board having third and fourth holes. The second keyswitch on the second backlight keyboard is shifted transversely relative to the first keyswitch on the backlight keyboard to make the first and fourth holes have a first overlapping area. The light guide plate has a first dot structure corresponding to the first and third holes and a second dot structure corresponding to the second and fourth holes except the first overlapping area for guiding light to symbols on the first and second keyswitches. The first dot structure is less than the second dot structure in dot intensity.