Patent attributes
A resistive touch sensor includes a base layer, a sensor top sheet positioned in spaced apart relation to a base layer, and a peripheral edge seal formed between the sensor top sheet and the base layer. The sensor further includes a first adhesive layer bonded on a peripheral edge portion to the sensor top sheet, and a second adhesive layer, inset relative to the peripheral edge seal, positioned between the first adhesive layer and the sensor top sheet. The second adhesive layer is bonded on one side to the first adhesive layer and an opposing side to the sensor top sheet corresponding to a portion of a touch active area. The second adhesive layer causes a planarity change in the sensor top sheet proximate the peripheral edge seal thereby increasing the usable area and improving uniformity of touch force across the sensor.
