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:
May. 22, 2007
Filed:
Mar. 17, 2004
David A. Hein, Sterling Heights, MI (US);
Todd L. Depue, Brighton, MI (US);
Michael W. Cass, Lenox, MI (US);
David A. Hein, Sterling Heights, MI (US);
Todd L. DePue, Brighton, MI (US);
Michael W. Cass, Lenox, MI (US);
Lear Corporation, Southfield, MI (US);
Abstract
A touch sensitive electroluminiescent (EL) switch is provided in a vehicle for actuating a vehicle accessory. A dielectric layer is adjacent to a rear electrode layer. A phosphor layer is adjacent to the dielectric layer. A transparent electrode layer includes a pad adjacent to the phosphor layer, and a substantially concentric conductive trace is adjacent to the phosphor layer and is spaced from the pad in the transparent electrode layer. The phosphor layer is disposed between the rear electrode layer and the pad and defines an illuminated region when energized by a first voltage. The substantially conductive trace and the pad cooperate to define a detection region substantially coinciding with the illuminated region when energized by a second voltage.