Circuit board

Abstract

A circuit board is used for providing a signal transmission path between a touch controller and a capacitive touch sensor. The capacitive touch sensor includes N first electrodes which are arranged sequentially along the first direction and M second electrodes which are arranged sequentially along the second direction. The circuit board includes a first conductor layer, a second conductor layer and a third conductor layer. The first conductor layer includes N first traces arranged in parallel and equidistant directions, and the N first traces are coupled to the N first electrodes. The second conductor layer includes M second traces arranged in parallel and equidistant directions, and the M second traces are coupled to the M second electrodes. The third conductor layer is grounded and located between the first conductor layer and the second conductor layer.

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