WIRING AND PERIPHERY FOR INTEGRATED CAPACITIVE TOUCH DEVICES
First Claim
1. A method, comprising:
- depositing optical cavity layers on a substantially transparent substrate to form a plurality of sensor electrodes;
depositing a substantially transparent dielectric material on the optical cavity layers and on exposed areas of the substantially transparent substrate;
forming vias through the substantially transparent dielectric material to expose portions of the underlying optical cavity layers; and
depositing conductive material in the vias to form electrical connections between the portions of the underlying optical cavity layers.
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Accused Products
Abstract
This disclosure provides systems, methods and apparatus for a projected capacitive touch (PCT) sensor that may include thin sensor electrodes coated with additional layers to form an optical cavity that reinforces a wavelength range or color of incident light. The sensor electrodes and a cover glass border and/or decorations may be fabricated simultaneously. In some implementations, the thickness of the optical cavity will be selected such that the “color” of reflected light is black. The sensor electrodes may not be noticeable to a human observer. However, in some other implementations, the thickness of the optical cavity may be selected such that the sensor electrodes and/or the decorative portions will have another color. Routing wires of the touch sensor may be shielded by a grounded conductive layer in the border.
84 Citations
40 Claims
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1. A method, comprising:
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depositing optical cavity layers on a substantially transparent substrate to form a plurality of sensor electrodes; depositing a substantially transparent dielectric material on the optical cavity layers and on exposed areas of the substantially transparent substrate; forming vias through the substantially transparent dielectric material to expose portions of the underlying optical cavity layers; and depositing conductive material in the vias to form electrical connections between the portions of the underlying optical cavity layers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus, comprising:
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a substantially transparent substrate; a plurality of touch sensor electrodes disposed on the substantially transparent substrate, the touch sensor electrodes including optical cavity layers; substantially transparent dielectric material disposed on the optical cavity layers; vias formed through the substantially transparent dielectric material to portions of the optical cavity layers; and conductive material in the vias to form electrical connections between the portions of the optical cavity layers. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. An apparatus, comprising:
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substantially transparent substrate means; a plurality of touch sensor electrode means disposed on the substantially transparent substrate means, the touch sensor electrode means including optical cavity means; and electrical connection means for forming electrical connections between discontinuous portions of the touch sensor electrode means. - View Dependent Claims (36, 37, 38, 39, 40)
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Specification