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:
Jan. 12, 2021
Filed:
Oct. 26, 2017
Preh Gmbh, Bad Neustadt a. d. Saale, DE;
Ottmar Gleissner, Hohenroth, DE;
Jochen Schlereth, Sondheim, DE;
PREH GMBH, Bad Neustadt a.d. Saale, DE;
Abstract
An input device, including a flat panel defining an array of control surfaces, and an array of capacitive sensors and a support. The control surfaces are on a surface of the panel facing towards the operator and the support is on a side of the panel facing away from an operator. Also, each capacitive sensor forms a measuring capacitance assigned to a control surface. Further, each capacitive sensor is formed by a common substantially flat film layer structure. The film layer structure includes a first electrode for forming the measuring capacitance. On the side of the support, a lighting device is provided for each control surface for backlighting the associated control surface and transmitting light through the film layer structure. Also, the input device reduces the passage of light from one capacitive sensor to an adjacent capacitive sensor.