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US 8,411,067 B2Granted
Capacitive touch sensor and fabrication method thereof and capacitive touch panel
AssigneesWintek Technology(H.K) Ltd., Wintek Corporation
InventorsHsiang-Wei Yin, Ming-Kung Wu, Kuo-Chang Su, Ping-Wen Huang
Life of this patent
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Abstract
A capacitive touch sensor includes multiple first-axis traces, multiple second-axis traces, an insulation layer and multiple metal traces. Each first-axis trace includes multiple first touch-sensing pads and first connecting lines connected therebetween. Each second-axis trace includes multiple second touch-sensing pads and second connecting lines connected therebetween. At least one of the first connecting line and the second connecting line is a metal printing line.
Claims13
A capacitive touch sensor, comprising:
- a plurality of first-axis traces arranged at regular intervals and parallel to each other, wherein each of the first-axis traces comprises a plurality of first touch-sensing pads and first connecting lines, the first touch-sensing pads are arranged along a first direction, and each of the first connecting lines connects two adjacent first touch-sensing pads;
- a plurality of second-axis traces arranged at regular intervals, parallel to each other and intersected with the first-axis traces, wherein each of the second-axis traces comprises a plurality of second touch-sensing pads and second connecting lines, the second touch-sensing pads are arranged along a second direction perpendicular to the first direction, each of the second connecting lines connects two adjacent second touch-sensing pads, and at least one of the first connecting line and the second connecting line is a metal printing line formed by ink-jet printing;
- an insulation layer at least formed between the first connecting lines and the second connecting lines;
- and
- a plurality of metal traces disposed on the periphery of the capacitive touch sensor, electrically connected to the first-axis traces and the second-axis traces, and connected to at least one signal output terminal for transmitting a sensing signal of the capacitive touch sensor to a back-end signal processing unit through the signal output terminal.
2 more elements
A capacitive touch panel, comprising:
- a cover lens;
- and
- a touch sensor formed on the cover lens and comprising:
- a plurality of first-axis traces arranged at regular intervals and parallel to each other, wherein each of the first-axis traces comprises a plurality of first touch-sensing pads and first connecting lines, the first touch-sensing pads are arranged along a first direction, and each of the first connecting lines connects two adjacent first touch-sensing pads;
- a plurality of second-axis traces arranged at regular intervals, parallel to each other and intersected with the first-axis traces, wherein each of the second-axis traces comprises a plurality of second touch-sensing pads and second connecting lines, the second touch-sensing pads are arranged along a second direction perpendicular to the first direction, each of the second connecting lines connects two adjacent second touch-sensing pads, and at least one of the first connecting line and the second connecting line is a metal printing line formed by ink-jet printing;
- an insulation layer at least formed between the first connecting lines and the second connecting lines;
- and
- a plurality of metal traces disposed on the periphery of the capacitive touch sensor, electrically connected to the first-axis traces and the second-axis traces, and connected to at least one signal output terminal for transmitting a sensing signal of the capacitive touch sensor to a back-end signal processing unit through the signal output terminal.
5 more elements
A method for fabricating a capacitive touch sensor, comprising:
- providing a transparent substrate;
- forming a transparent conductive film on the transparent substrate and patterning the transparent conductive film to form a plurality of first touch-sensing pads and a plurality of second touch-sensing pads;
- printing a metallic material between the first touch-sensing pads to form a plurality of first connecting lines for connecting each two adjacent first touch-sensing pads;
- printing an insulation layer on the transparent substrate to cover the first connecting lines;
- printing a metallic material between the second touch-sensing pads to form a plurality of second connecting lines for connecting each two adjacent second touch-sensing pads;
- and
- printing a metallic material on the periphery of the transparent substrate to electrically connect the first touch-sensing pads, the second touch-sensing pads and at least one signal output terminal to form a plurality of metal traces.
4 more elements
Dependencies are inferred from the claim text.