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:
Jun. 14, 2011
Filed:
Feb. 13, 2007
Takaaki Yoshihiro, Tokyo, JP;
Takaaki Yoshihiro, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A luminous switch using an inorganic EL material is provided with a plurality of switch sections so as to reduce acoustic noise. The switch sections are provided with a plurality of protruding parts () and a plurality of supporting sections () formed on a surface of a structure (); an elastic deformable conductor () arranged to have a convex surface opposed the protruding parts (); a wiring sheet (A) for covering the conductor (); a luminous sheet () for covering the wiring sheet (A); and a plurality of switch buttons () arranged above the luminous sheet (). The luminous switch has a structure in which at least two supporting sections () are arranged around the protruding parts (), and a space () is formed between the protruding parts () and a switch sheet (). The conductor () is accommodated in the space (). In a case main body (), an electronic component () is mounted and a substrate () provided with wiring is arranged. The switch buttons () are fixed on a key sheet (). A top plate () is arranged on the key sheet () by surrounding the switch buttons (). The top plate () is arranged to cover lower components.