Touch screen stack-ups
First Claim
1. A multi-touch sensor panel, comprising:
- a glass subassembly having a front side capable of being touched, and a back side opposite the front side;
a plurality of first traces of a first substantially transparent conductive material formed on the back side of the glass subassembly;
a plurality of second traces of a second substantially transparent material; and
a dielectric material coupled between the first traces and the second traces;
wherein the second and first traces are oriented to cross over each other at crossover locations separated by the dielectric material, the crossover locations forming mutual capacitance sensors for detecting one or more touches on the front side of the glass subassembly.
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Accused Products
Abstract
A multi-touch sensor panel is disclosed that can include a glass subassembly having a plurality of column traces of substantially transparent conductive material that can be formed on the back side, wherein the glass subassembly can also act as a cover that can be touched on the front side. Row traces of the same or different substantially transparent conductive material can then be located near the column traces, and a layer of dielectric material can be coupled between the column traces and the row traces. The row and column traces can be oriented to cross over each other at crossover locations separated by the dielectric material, and the crossover locations can form mutual capacitance sensors for detecting one or more touches on the front side of the glass subassembly.
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Citations
54 Claims
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1. A multi-touch sensor panel, comprising:
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a glass subassembly having a front side capable of being touched, and a back side opposite the front side; a plurality of first traces of a first substantially transparent conductive material formed on the back side of the glass subassembly; a plurality of second traces of a second substantially transparent material; and a dielectric material coupled between the first traces and the second traces; wherein the second and first traces are oriented to cross over each other at crossover locations separated by the dielectric material, the crossover locations forming mutual capacitance sensors for detecting one or more touches on the front side of the glass subassembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A mobile telephone including a multi-touch sensor panel, the multi-touch sensor panel comprising:
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a glass subassembly having a front side capable of being touched, and a back side opposite the front side; a plurality of first traces of a first substantially transparent conductive material formed on the back side of the glass subassembly; a plurality of second traces of a second substantially transparent material; and a dielectric material coupled between the first traces and the second traces; wherein the second and first traces are oriented to cross over each other at crossover locations separated by the dielectric material, the crossover locations forming mutual capacitance sensors for detecting one or more touches on the front side of the glass subassembly.
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18. A digital audio player including a multi-touch sensor panel, the multi-touch sensor panel comprising:
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a glass subassembly having a front side capable of being touched, and a back side opposite the front side; a plurality of first traces of a first substantially transparent conductive material formed on the back side of the glass subassembly; a plurality of second traces of a second substantially transparent material; and a dielectric material coupled between the first traces and the second traces; wherein the second and first traces are oriented to cross over each other at crossover locations separated by the dielectric material, the crossover locations forming mutual capacitance sensors for detecting one or more touches on the front side of the glass subassembly.
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19. A multi-touch sensor panel, comprising:
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a plurality of mutual capacitance sensors, the plurality of mutual capacitance sensors formed by a plurality of first traces of a first substantially transparent conductive material and a plurality of second traces of a second substantially transparent conductive material separated by a dielectric material, the plurality of first and second traces oriented to cross over each other at crossover locations separated by the dielectric material, the crossover locations forming the mutual capacitance sensors; wherein one or both of the plurality of first traces and the plurality of second traces are formed on a back side of a glass subassembly, the glass subassembly having a front side opposite the back side and capable of being touched. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method for forming a multi-touch sensor panel, comprising:
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forming a plurality of first traces of a first substantially transparent conductive material on a back side of a glass subassembly having a front side capable of being touched, and a back side opposite the front side; locating a plurality of second traces of a second substantially transparent material between the first traces and a layer of dielectric material; and orienting the second and first traces to cross over each other at crossover locations separated by the dielectric material, the crossover locations forming mutual capacitance sensors for detecting one or more touches on the front side of the glass subassembly. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A method for forming a multi-touch sensor panel, comprising:
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forming a plurality of mutual capacitance sensors by layering a plurality of first traces of a first substantially transparent conductive material and a plurality of second traces of a second substantially transparent conductive material separated by a dielectric material, and orienting the plurality of first and second traces to cross over each other at crossover locations separated by the dielectric material, the crossover locations forming the mutual capacitance sensors; wherein one or both of the plurality of first traces and the plurality of second traces are formed on a back side of a glass subassembly, the glass subassembly having a front side opposite the back side and capable of being touched. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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Specification