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:
Jan. 07, 2025
Filed:
Nov. 30, 2022
Primax Electronics Ltd., Taipei, TW;
Yung-Tai Pan, Taipei, TW;
Jui-Jen Cheng, Taipei, TW;
PRIMAX ELECTRONICS LTD., Taipei, TW;
Abstract
A control device with a capacitive-type visual key structure is provided. The control device includes a covering member and a transparent keycap. The covering member includes an accommodation space. The transparent keycap is accommodated within the accommodation space. An elastic element, a first electrode, a key circuit board assembly with a second electrode and a display panel are accommodated within the accommodation space. When the transparent keycap is pressed down, the elastic element is correspondingly moved, and a spatial distance between the first electrode and the second electrode is changed. Consequently, a capacitance change value is formed. According to the capacitance change value, the control device judges whether the transparent keycap is pressed down and triggered.