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:
Nov. 07, 2023
Filed:
Nov. 04, 2022
Primax Electronics Ltd., Taipei, TW;
PRIMAX ELECTRONICS LTD., Taipei, TW;
Abstract
A control device includes a display panel and plural key structures. Each key structure includes a keycap, an optical film layer, an elastic element, plural raised structures and a membrane switch. The optical film layer includes a light-transmissible region and a supporting region. The plural raised structures are formed on the supporting region and arranged around the light-transmissible region. The membrane switch includes an upper film layer and a lower film layer. Moreover, a light beam emitted by the display panel is transmitted upwardly through a second opening of the lower film layer, a first opening of the upper film layer, the light-transmissible region, a hollow part of the elastic element and the keycap. When the keycap is pressed down, the first circuit contact point of the upper film layer and the corresponding second circuit contact point of the lower film layer are contacted with each other.