Layer electrodes for touchscreens

Abstract

The invention relates to a layer electrode for touchscreens, in particular one which is suitable for the construction of capacitive touchscreens. In the case of a growing number of pixels within the layer electrode, various possibilities are proposed for reducing the loss of surface area within an outer electrode array due to the passage of supply lines to inner electrode arrays. For this it is proposed to change the shape of the electrode arrays, the shape of the galvanic isolations between the electrode arrays and finally the arrangement of the supply lines for the electrode arrays.

Description

technical field [0001] The invention relates to a layer electrode for a touch screen, in particular to a layer electrode suitable for a capacitive touch screen structure. Background technique [0002] Such layer electrodes typically include first and second conductive regions of a receiver electrode and conductive regions of a transmitter electrode, wherein the first and second conductive regions of the receiver electrode are adjacent to each other and in one plane, but are electrically The isolations are separated from each other, and the conductive regions of the transmitter electrodes are likewise adjacent to each other and in one plane, but separated from each other by electrical isolation. Layer electrodes are characterized in that two electrical functions, a receiver function on the one hand and a transmitter function on the other hand, are realized on the substrate surface in one plane. Corresponding electrode arrays cover the entire usable surface of the touch scree...

AI Technical Summary

Problems solved by technology

[0003] A disadvantage of the hitherto known arrangements of electrode arrays on the layer electrodes is their high susceptibility to interference signals in the edge region which are triggered by the supply lines, in particular by the supply line bundles

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