Double sided touch sensor on transparent substrate
First Claim
1. A touch sensor panel comprising:
- a first substrate;
a visible area that is transparent to allow light to transmit from a display through the visible area;
a plurality of first lines of a first conductive material located in the visible area of the touch sensor and disposed on the first substrate;
a border area located on at least one side of the visible area;
a plurality of routing traces of a second conductive material located in the border area of the touch sensor panel and disposed on the first substrate and coupled to the plurality of first lines; and
one or more blocking layers disposed between the first substrate and the plurality of first lines and located in the visible area and the border area of the touch sensor panel, wherein the one or more blocking layers are configured to block a light source.
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Accused Products
Abstract
Compact touch sensors for touch sensitive devices and processes for forming the touch sensors are disclosed. The touch sensor structure can include a substrate, one or more underlying layers disposed on the substrate, one or more blocking layers disposed on the substrate or on one or more underlying layers, and one or more patterned layers disposed on the underlying layers or blocking layers. The one or more blocking layers can be configured to block underlying layers from exposure to certain wavelengths of light or from penetration of a laser beam that can cause damage. Additionally, the one or more underlying layers can be multi-functional, including the ability to block one or more light sources.
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Citations
20 Claims
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1. A touch sensor panel comprising:
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a first substrate; a visible area that is transparent to allow light to transmit from a display through the visible area; a plurality of first lines of a first conductive material located in the visible area of the touch sensor and disposed on the first substrate; a border area located on at least one side of the visible area; a plurality of routing traces of a second conductive material located in the border area of the touch sensor panel and disposed on the first substrate and coupled to the plurality of first lines; and one or more blocking layers disposed between the first substrate and the plurality of first lines and located in the visible area and the border area of the touch sensor panel, wherein the one or more blocking layers are configured to block a light source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 18, 19, 20)
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13. A method for forming a touch sensor panel, the method comprising:
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providing a first substrate; forming a plurality of first lines of a first conductive material on the first substrate and locating the plurality of first lines in a visible area of the touch sensor panel, wherein the visible area is transparent to allow light to transmit from a display through the visible area; forming a plurality of routing traces of a second conductive material on the first substrate and locating the plurality of routing traces in a border area of the touch sensor panel; and forming one or more blocking layers disposed between the first substrate and the plurality of first lines and locating the one or more blocking layers in the visible area and the border area of the touch sensor panel, wherein the one or more blocking layers are configured to block a light source. - View Dependent Claims (14, 15, 16, 17)
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Specification