HIGH RESISTIVITY METAL FAN OUT
First Claim
1. A touch sensor panel comprising:
- a substrate including a plurality of first bond pads and a plurality of second bond pads;
one or more columns formed from a first layer of a first conductive material disposed along a plane of the substrate and electrically coupled to the plurality of first bond pads;
one or more rows formed from a second layer of the first conductive material disposed along the plane of the substrate and electrically coupled to the plurality of second bond pads; and
a flex circuit comprising;
a first portion bonded to the plurality of first bond pads to electrically couple to the one or more columns, anda second portion bonded to the plurality of second bond pads to electrically couple to the one or more rows,wherein the plurality of first bond pads and the plurality of second bond pads are located in different locations along the plane.
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Accused Products
Abstract
The formation of metal traces in the border areas of a touch sensor panel to provide improved reliability, better noise rejection, and lower manufacturing costs is disclosed. The metal traces can be coupled to rows on the touch sensor panel in an interleaved manner, so that any two successive rows can be coupled to metal traces in border areas on opposite sides of the touch sensor panel. In addition, by utilizing the full width available in the border areas in some embodiments, the metal traces can be formed from higher resistivity metal, which can reduce manufacturing costs and improve trace reliability. The wider traces can also provide better noise immunity from noise sources such as an LCD by providing a larger fixed-potential surface area and by more effectively coupling the drive lines to the fixed potential.
25 Citations
20 Claims
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1. A touch sensor panel comprising:
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a substrate including a plurality of first bond pads and a plurality of second bond pads; one or more columns formed from a first layer of a first conductive material disposed along a plane of the substrate and electrically coupled to the plurality of first bond pads; one or more rows formed from a second layer of the first conductive material disposed along the plane of the substrate and electrically coupled to the plurality of second bond pads; and a flex circuit comprising; a first portion bonded to the plurality of first bond pads to electrically couple to the one or more columns, and a second portion bonded to the plurality of second bond pads to electrically couple to the one or more rows, wherein the plurality of first bond pads and the plurality of second bond pads are located in different locations along the plane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A flex circuit, comprising:
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a first portion including a plurality of third bond pads, the first portion configured to bond to a plurality of first bond pads of a substrate; and a second portion including a plurality of fourth bond pads, the second portion configured to bond to a plurality of second bond pads of the substrate, wherein the plurality of first bond pads and the plurality of second bond pads are located in different locations along a plane of the substrate. - View Dependent Claims (13, 14, 15, 16)
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17. A method of routing a plurality of signals from a plurality of sensors to a plurality of bond pads, the method comprising:
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coupling a plurality of columns of the plurality of sensors to a first plurality of bond pads of a substrate; and coupling a plurality of rows of the plurality of sensors to a second plurality of bond pads of the substrate, wherein the plurality of first bond pads and the plurality of second bond pads are located in different locations along a plane of the substrate. - View Dependent Claims (18, 19, 20)
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Specification