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. 22, 2011
Filed:
Mar. 17, 2009
Fu-hsin Sung, Taipei Hsien, TW;
Yi-hua Wang, Taipei Hsien, TW;
Fu-Hsin Sung, Taipei Hsien, TW;
Yi-Hua Wang, Taipei Hsien, TW;
Chi Mei Communication Systems, Inc., Tu-Cheng, New Taipei, TW;
Abstract
An exemplary keypad assembly includes: a printed circuit board (PCB) comprising a plurality of fixed contact points formed thereon, an elastic sheet disposed on the PCB, the elastic sheet comprising a base and many switches fixed on the base above the fixed contact points correspondingly; many key buttons, each key button comprising a main portion, and a pressing portion extending downward from the main portion; a light shielding sheet defining a plurality of through holes, the light shielding sheet integrally formed with the key buttons, the key buttons respectively passing through each of the through holes of the light shield sheet. The light shielding sheet with the key buttons is disposed above the elastic sheet, each pressing portion of each key button corresponding to each switch. The keypad assembly has a thin configuration due to a combination configuration of the light shielding sheet and the key buttons.