Touch sensitive device with multiple ablation fluence values
First Claim
1. A touch sensitive device comprising:
- a substrate;
a first layer disposed on the substrate, the first layer including first touch sensing lines and second touch sensing lines, the first layer having a first ablation fluence value;
a first area of the first layer including;
the first touch sensing lines; and
a second area of the first layer located between outside the first area to outer edges of the substrate, the second area including;
the second touch sensing lines, anda second layer disposed on the second touch sensing lines, the second layer comprising a plurality of conductive routing traces and having a second ablation fluence value, the plurality of conductive routing traces coupled to the second touch sensing lines,wherein the second ablation fluence value is less than the first ablation fluence value,wherein a spacing between adjacent conductive routing traces in the second area oriented along a direction is less than a spacing between adjacent first touch sensing lines in the first area oriented along the direction, andwherein a size and location of an entire pattern of the second touch sensing lines in all of the second area are same as a size and location of an entire pattern of the plurality of conductive routing traces in all of the second area.
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Accused Products
Abstract
Processes for fabricating compact touch sensors for touch sensitive devices are disclosed. A process can include providing a touch sensor structure having a substrate, a first layer disposed on the substrate, and a second layer disposed on the first layer. The second layer can have an ablation fluence value that is lower than an ablation fluence value of the first layer. The process can include patterning the second layer with a laser emitting energy having a fluence value greater than or equal to the ablation fluence value of the second layer and less than the ablation fluence value of the first layer. The process can further include etching at least a portion of the first layer that was exposed during the patterning of the second layer. At least a portion of the second layer can then be removed by etching or laser ablation.
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Citations
22 Claims
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1. A touch sensitive device comprising:
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a substrate; a first layer disposed on the substrate, the first layer including first touch sensing lines and second touch sensing lines, the first layer having a first ablation fluence value; a first area of the first layer including; the first touch sensing lines; and a second area of the first layer located between outside the first area to outer edges of the substrate, the second area including; the second touch sensing lines, and a second layer disposed on the second touch sensing lines, the second layer comprising a plurality of conductive routing traces and having a second ablation fluence value, the plurality of conductive routing traces coupled to the second touch sensing lines, wherein the second ablation fluence value is less than the first ablation fluence value, wherein a spacing between adjacent conductive routing traces in the second area oriented along a direction is less than a spacing between adjacent first touch sensing lines in the first area oriented along the direction, and wherein a size and location of an entire pattern of the second touch sensing lines in all of the second area are same as a size and location of an entire pattern of the plurality of conductive routing traces in all of the second area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification