Touch screen panel with integral wiring traces
First Claim
1. A method of manufacturing a touch panel, the method comprising:
- coating an insulative substrate with a resistive layer;
applying a pattern of conductive edge electrodes to the resistive layer and applying a conductive wire pattern to the resistive layer;
electrically isolating the conductive edge electrodes from the conductive wire traces using a laser beam to ablate the resistive material between the edge electrodes and the wire traces and the resistive material between the wire traces; and
applying an insulative material at least between the edge electrodes and the wire traces.
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Abstract
A method of manufacturing a touch panel wherein a glass substrate is coated with a resistive layer; a pattern of conductive edge electrodes and a conductive wire trace pattern are applied to the resistive layer; the conductive edge electrodes are electrically isolated from the conductive wire traces; and a protective insulative border layer is applied over the edge electrodes and the wire traces. A touch panel which includes a glass substrate coated with a resistive layer on one surface thereof; a pattern of edge electrodes on the resistive layer; a wire trace pattern on the resistive layer; a trench in the resistive layer between the wire trace pattern and the edge electrode pattern; and a protective insulative border layer over the edge electrode pattern and the wire traces.
38 Citations
7 Claims
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1. A method of manufacturing a touch panel, the method comprising:
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coating an insulative substrate with a resistive layer; applying a pattern of conductive edge electrodes to the resistive layer and applying a conductive wire pattern to the resistive layer; electrically isolating the conductive edge electrodes from the conductive wire traces using a laser beam to ablate the resistive material between the edge electrodes and the wire traces and the resistive material between the wire traces; and applying an insulative material at least between the edge electrodes and the wire traces.
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2. A method of manufacturing a touch panel, the method comprising:
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coating an insulative substrate with a resistive layer; applying a pattern of conductive edge electrodes to the resistive layer and applying a conductive wire pattern to the resistive layer; electrically isolating the conductive edge electrodes from the conductive wire traces; and applying a protective insulative border layer over the edge electrodes and the wire traces by screen printing an insulative composition over the edge electrodes and the wire traces. - View Dependent Claims (3)
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4. A method of manufacturing a touch panel, the method comprising:
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coating an insulative substrate with a resistive layer; applying a pattern of conductive edge electrodes to the resistive layer and applying a conductive wire pattern to the resistive layer; electrically isolating the conductive edge electrodes from the conductive wire traces; applying an insulative material at least between the edge electrodes and the wire traces; and firing the applied edge electrodes, the wire traces, and the insulative border layer. - View Dependent Claims (5, 6)
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7. A method of manufacturing a touch panel, the method comprising:
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coating an insulative substrate with a resistive layer; apply a pattern of conductive edge electrodes to the resistive layer and applying a conductive wire trace pattern to the resistive layer; removing the resistive layer at least between the wire traces and the edge electrodes to electrically isolate them from each other; applying an insulative material over both the wire traces and the edge electrodes to protect them; and co-firing the edge electrodes, the wire traces, and the insulative material all at the same time.
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Specification