RC matching in a touch screen

摘要

A touch screen. In some examples, the touch screen can comprise a first element coupled to a first sense connection, and a second element coupled to a second sense connection. In some examples, the first and second sense connections can be configured such that a load presented by the first sense connection and the first element is substantially equal to a load presented by the second sense connection and the second element. In some examples, the first and second sense connections can comprise detour routing configured such that a resistance of the first sense connection is substantially equal to a resistance of the second sense connection. In some examples, the first and second sense connections can be coupled to dummy routing configured such that a first capacitance presented by the first sense connection is substantially equal to a second capacitance presented by the second sense connection.

主权项

1. A touch screen comprising:
a first element of a plurality of elements, the first element coupled to a first sense connection; a second element of the plurality of elements, the second element coupled to a second sense connection; first dummy routing coupled to the first sense connection, the first dummy routing overlapping one or more elements of the plurality of elements; and second dummy routing coupled to the second sense connection, wherein the first and second sense connections and the first dummy routing are configured such that a load presented by the first sense connection and the first element is substantially equal to a load presented by the second sense connection and the second element, and the first dummy routing and the second dummy routing are configured such that a first capacitance presented by the first sense connection is substantially equal to a second capacitance presented by the second sense connection.