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:
Oct. 28, 2025
Filed:
Jul. 05, 2024
Darfon Electronics Corp., Taoyuan, TW;
Heng-Yi Huang, Taoyuan, TW;
Chun-Tan Wu, Taoyuan, TW;
DARFON ELECTRONICS CORP., Taoyuan, TW;
Abstract
An illuminated touch key uses a chamfer structure of a light guide panel disposed on a sensing module or a light guide panel adjacent to a sensing module to guide light emitted by a light source to a hollow area of a keycap to emit light, thereby forming an illuminated pattern corresponding to the hollow area. Accordingly, a user can accurately find the location of the illuminated touch key according to the illuminated pattern. Since there is no need to add a light guide structure above the sensing module, the height of the illuminated touch key will not be increased, such that it is conducive to make the illuminated touch key thinner.