Foil body, method for back-injection molding a foil body and back-injection molding tool
AssigneePolyIC GmbH & Co. KG
InventorsAndreas Ullmann, Walter Fix
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Abstract
The invention relates to a film body, a method for the back-injection molding of a film body and a back-injection molding tool therefor. In particular, the invention relates to a method for the back-injection molding of layer electrodes (1) for producing touch-sensitive sensors for example for touch screens. Parts of the layer electrode (1), which after the back-injection molding should still be able to move freely, are covered by a sacrificial film (3) before and during the back-injection molding.
Claims12
A method of molding a layer electrode for producing a touch-sensitive sensor, wherein said layer electrode includes at least one tail portion that is not to be back-injection molded, said method comprising:
- (a) covering said at least one tail portion with a sacrificial film;
- (b) introducing said layer electrode and said sacrificial film into a back-injection molding tool, wherein said back-injection molding tool contains a back-injection molding material;
- (c) back-injection molding said layer electrode and said sacrificial film to produce a back-injection molded body, wherein during said back-injection molding, said sacrificial film binds to said back-injection molding material, and said at least one tail of said layer electrode lies on said sacrificial film and can be moved freely;
- and
- (d) forming a touch-sensitive sensor from said produced back-injection molded body.
Dependencies are inferred from the claim text.