SINGLE SUBSTRATE CAPACITIVE TOUCH PANEL
First Claim
1. A patterned substrate for a touch screen sensor assembly, the patterned substrate comprising;
- a base substrate;
a first transparent conductive layer deposited on a first side of the base substrate, the first transparent conductive layer forming a pattern of electrodes;
a silicon oxide layer deposited over the first transparent conductive layer; and
a second transparent conductive layer deposited over the silicon oxide layer, the second transparent conductive layer forming a pattern of electrodes;
wherein the first transparent conductive layer is electrically isolated from the second transparent conductive layer by the silicon oxide layer.
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Accused Products
Abstract
A touch screen sensor assembly that includes a single substrate. In one embodiment, the assembly includes a first patterned transparent conductive layer (e.g., indium tin oxide) disposed on top of the substrate. The assembly also includes a second patterned transparent conductive layer disposed over the first conductive layer, with a layer of silicon oxide disposed therebetween. The silicon oxide layer functions to electrically isolate the first and second conductive layers, thereby eliminating the need for two substrates or a single substrate having transparent conductive layers on each of its top and bottom surfaces. The assembly may also be connectable to a single, non-bifurcated flexible printed circuit operative to connect the assembly to a controller.
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Citations
39 Claims
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1. A patterned substrate for a touch screen sensor assembly, the patterned substrate comprising;
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a base substrate; a first transparent conductive layer deposited on a first side of the base substrate, the first transparent conductive layer forming a pattern of electrodes; a silicon oxide layer deposited over the first transparent conductive layer; and a second transparent conductive layer deposited over the silicon oxide layer, the second transparent conductive layer forming a pattern of electrodes; wherein the first transparent conductive layer is electrically isolated from the second transparent conductive layer by the silicon oxide layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for manufacturing a substrate for a touch screen sensor assembly, the method comprising:
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providing a base substrate; depositing a first transparent conductive layer over the base substrate, the first transparent conductive layer including a first pattern of electrodes; depositing a silicon oxide layer over the first conductive layer; and depositing a second transparent conductive layer over the silicon oxide layer, the second transparent conductive layer including a second pattern of electrodes, wherein the first transparent conductive layer is electrically isolated from the second transparent conductive layer by the silicon oxide layer. - View Dependent Claims (11, 12, 13, 14)
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15. A patterned substrate for a touch screen sensor assembly, the patterned substrate comprising;
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a base substrate; a plurality of transparent conductive portions deposited over a first side of the base substrate; a plurality of transparent non-conductive portions, each transparent non-conductive portion being deposited over a portion of one of the plurality of transparent conductive portions; and a grid comprising a plurality of conductive rows and a plurality of conductive columns, wherein each conductive row is deposited over at least one of the transparent non-conductive portions and each conductive column is deposited over at least one of the transparent conductive portions, and wherein the plurality of conductive rows are electrically isolated from the plurality of conductive columns by the plurality of transparent non-conductive portions. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method for manufacturing a substrate for a touch screen sensor assembly, the method comprising:
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providing a base substrate; forming a plurality of transparent conductive portions on a first side of the base substrate; forming a plurality of transparent non-conductive portions on the plurality of transparent conductive portions such that each transparent non-conductive portion is deposited over a portion of one of the plurality of transparent conductive portions; and forming a grid over the base substrate and the plurality of transparent conductive and non-conductive portions, the grid comprising a plurality of conductive rows and a plurality of conductive columns, wherein each conductive row is in contact with at least one of the transparent non-conductive portions and each conductive column is in contact with at least one of the transparent conductive portions, and wherein the plurality of conductive rows are electrically isolated from the plurality of conductive columns by the plurality of transparent non-conductive portions. - View Dependent Claims (27, 28, 29, 30, 31)
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32. A patterned substrate for a touch screen sensor assembly, the patterned substrate comprising:
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a base substrate; at least one row of electrodes deposited over a first side of the base substrate, wherein adjacent electrodes in the at least one row of electrodes are interconnected by a leg portion; at least one column of electrodes deposited over the first side of the base substrate; and a transparent non-conductive layer disposed between the base substrate and at least one of the at least one row of electrodes and the at least one column of electrodes;
wherein the at least one row of electrodes is electrically isolated from the at least one column of electrodes. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39)
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Specification