Projective capacitive touch sensor

摘要

A projective capacitive touch sensor includes a substrate, a plurality of electrode layers and a plurality of dielectric layers. The electrode layers are arranged on the substrate along a first direction. At least one dielectric layer is formed on each electrode layer and the dielectric layer has different widths along a second direction.

主权项

1. A projective capacitive touch sensor, configured to detect a conductive object approaching thereto, the projective capacitive touch sensor comprising:
a substrate; a plurality of electrode layers arranged on the substrate along a first direction; a plurality of dielectric layers formed on each of the electrode layers; and a plurality of slits formed on each of the electrode layers and surrounding the dielectric layers on said electrode layer, wherein the dielectric layers formed on each of the electrode layers have different areas along a second direction and are configured to form different equivalent dielectric constants for inducing different capacitance variations between the conductive object and the electrode layer, and wherein, among the dielectric layers on each of the electrode layers, a dielectric layer with a smaller area is surrounded by more slits.