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. 04, 2022
Filed:
Jun. 30, 2021
Lite-on Technology Corporation, Taipei, TW;
Ming-Fu Yen, Taipei, TW;
Abstract
A key structure is provided. The key structure includes a base plate, a membrane switch circuit, a key cap and a balance bar. The base plate includes a mounting portion. The membrane switch circuit is arranged on the base plate. The key cap is disposed above the membrane switch circuit. The balance bar is arranged between the base plate and the key cap. The balance bar includes a rod body and a first link part, the rod body is connected to the key cap, and the first link part is pivotally arranged corresponding to the mounting portion and connected to the base plate. An opaque area is formed in the overlap range of the orthographic projection of the membrane switch circuit and the key cap.