Integrated touch screen
First Claim
1. An apparatus comprising:
- a display stack for a touch-sensitive screen, the display stack comprising a plurality of layers in which a top layer comprises a substantially transparent cover layer, the plurality of layers further comprising a first polarizer that is below the substantially transparent cover layer and a second polarizer that is below the substantially transparent cover layer and a liquid crystal layer, the display stack being configured to display a color image;
a touch sensor within the display stack, the touch sensor comprising;
a plurality of first conductive electrodes formed on and contacting a color filter layer of a subset of the plurality of layers, the subset being below the substantially transparent cover layer; and
a plurality of second conductive electrodes formed on and contacting the color filter layer of the subset of the plurality of layers; and
wherein the plurality of first conductive electrodes and the plurality of second conductive electrodes are located between the first polarizer and the second polarizer.
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Accused Products
Abstract
In one embodiment, an apparatus includes a display stack for a touch-sensitive screen. The display stack comprises a plurality of layers in which a top layer comprises a substantially transparent cover layer. The display stack is configured to display a color image. The apparatus also includes a touch sensor provided within the display stack. The touch sensor comprises a plurality of first conductive electrodes contacting a layer of a subset of the plurality of layers of the display stack. The subset of the plurality of layers is below the substantially transparent cover layer. The touch sensor also includes a plurality of second conductive electrodes contacting a layer of the subset of the plurality of layers.
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Citations
12 Claims
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1. An apparatus comprising:
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a display stack for a touch-sensitive screen, the display stack comprising a plurality of layers in which a top layer comprises a substantially transparent cover layer, the plurality of layers further comprising a first polarizer that is below the substantially transparent cover layer and a second polarizer that is below the substantially transparent cover layer and a liquid crystal layer, the display stack being configured to display a color image; a touch sensor within the display stack, the touch sensor comprising; a plurality of first conductive electrodes formed on and contacting a color filter layer of a subset of the plurality of layers, the subset being below the substantially transparent cover layer; and a plurality of second conductive electrodes formed on and contacting the color filter layer of the subset of the plurality of layers; and wherein the plurality of first conductive electrodes and the plurality of second conductive electrodes are located between the first polarizer and the second polarizer. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A device comprising:
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a display stack for a touch-sensitive screen, the display stack comprising a plurality of layers in which a top layer comprises a substantially transparent cover layer, the plurality of layers further comprising a first polarizer that is below the substantially transparent cover layer and a second polarizer that is below the substantially transparent cover layer and a liquid crystal layer, the display stack being configured to display a color image; a touch sensor within the display stack, the touch sensor comprising; a plurality of first conductive electrodes formed on and contacting a color filter layer of a subset of the plurality of layers, the subset being below the substantially transparent cover layer; and a plurality of second conductive electrodes formed on and contacting the color filter layer of the subset of the plurality of layers; and a controller coupled to the touch sensor and operable to control the touch sensor; and wherein the plurality of first conductive electrodes and the plurality of second conductive electrodes are located between the first polarizer and the second polarizer. - View Dependent Claims (9, 10, 11, 12)
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Specification