TOUCH SENSITIVE DEVICE WITH MULTILAYER ELECTRODE AND UNDERLAYER
First Claim
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1. A sensor for use in a proximity-sensing device, comprising:
- a substrate layer;
a first electrode layer having a plurality of electrodes;
a second electrode layer having a plurality of electrodes; and
,a dielectric layer separating the first and second electrode layers;
a patterned underlayer, disposed between the substrate layer and the first electrode layer;
wherein the first and second layers are situated in relation to one another such to form an electrode matrix, and wherein at least some of the electrodes in either the first or second electrode layer comprise;
a first transparent or semitransparent conductive layer;
a second transparent or semitransparent conductive layer; and
a transparent or semitransparent intervening layer located between the first and second conductive layers, the intervening layer including electrically conductive pathways between the first and second conductive layers.
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Abstract
A touch sensor including one or more multilayer electrodes and an underlayer disposed on a substrate. The underlayer is disposed between the multilayer electrodes and the substrate. The multilayer electrodes including at least two transparent or semitransparent conductive layers separated by a transparent or semitransparent intervening layer. The intervening layer includes electrically conductive pathways between the first and second conductive layers to help reduce interfacial reflections occurring between particular layers in devices incorporating the conducting film or electrode.
38 Citations
21 Claims
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1. A sensor for use in a proximity-sensing device, comprising:
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a substrate layer; a first electrode layer having a plurality of electrodes; a second electrode layer having a plurality of electrodes; and
,a dielectric layer separating the first and second electrode layers; a patterned underlayer, disposed between the substrate layer and the first electrode layer; wherein the first and second layers are situated in relation to one another such to form an electrode matrix, and wherein at least some of the electrodes in either the first or second electrode layer comprise; a first transparent or semitransparent conductive layer; a second transparent or semitransparent conductive layer; and a transparent or semitransparent intervening layer located between the first and second conductive layers, the intervening layer including electrically conductive pathways between the first and second conductive layers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification