Capacitively operating touch panel device

US9377914B2 · kind B2 · utility

Assignee

• PolyIC GmbH & Co. KG · DE

Inventors

• Walter Fix · Fürth, DE
• Andreas Ullmann · Zirndorf, DE

Key dates

• Filing date: Jun 21, 2012
• Grant date: Jun 28, 2016
• Expiry date: Jun 10, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F2203/04112
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

A multi-layer body has a transparent first area which comprises a plurality of touch panels in the first area with a carrier substrate transparent in the first area, and a partially electrically conductive first layer transparent at least in the first area. The first layer has, in the first area, electrically conductive transmission areas, receiving areas and connection areas each formed by a pattern of electrically conductive, non-transparent tracks whose width in the first area is such that the electrically conductive transmission areas, receiving areas and connection areas are transparent. One of the electrically conductive transmission areas and one of the electrically conductive receiving areas are in each touch panel in the first layer and galvanically separated from each other on both sides of a gap separating them, wherein n transmission areas of different touch panels in the first layer are electrically connected to each other and to a contact area outside the first area in the first layer via one of the electrically conductive connection areas of the first layer, and m receiving areas of different touch panels in the first layer are electrically connected to each other an…