RC matching in a touch screen
First Claim
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, andthe 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.
1 Assignment
0 Petitions
Accused Products
Abstract
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.
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Citations
33 Claims
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1. A touch screen comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 24, 25, 26, 27, 28)
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13. A method for fabricating a touch screen, the method comprising:
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forming a first element of a plurality of elements; forming a first sense connection coupled to the first element; forming a second element of the plurality of elements; forming a second sense connection coupled to the second element; forming a first dummy routing coupled to the first sense connection, the first dummy routing overlapping one or more elements of the plurality of elements; and forming 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. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 29, 30, 31, 32, 33)
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Specification