Touch sensor with linearized response

Details Touch sensor with linearized response Touch sensor with linearized response

2007-12-11

2007-12-11

Osorio, Ricardo (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C345S156000

Reexamination Certificate

active

10748573

ABSTRACT:
A field linearization pattern and a touch sensor incorporating same are disclosed. The touch sensor includes a polygonal field linearization pattern disposed around a touch sensitive area. The field linearization pattern includes a first side and a second side that intersect at a first corner. The field linearization pattern further includes an inner row and an outer row of discrete conductive segments. The inner row includes a conductive corner segment at the first corner. The conductive corner segment extends along a portion of the first and second sides of the linearization pattern. The touch sensor further includes electronics configured to detect a location of an input touch applied to the touch sensitive area by generating an electrical current in the linearization pattern. A current flowing from the first side to the second side of the linearization pattern is substantially confined within the linearization pattern.

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