Patent ID: 9182864
Filing Date: 2015-11-10
Classification: G06F

Abstract:
1. A projected capacitive touch panel for detecting both touch as well as pressing of a finger on a touch panel comprising: a plurality of drive electrodes that are conductive; a plurality of sense electrodes that are conductive; a layer of nonconductive material separating said drive electrodes from said sense electrodes; a cover layer with an underside and a topside, comprising of a nonconductive material, positioned above said sense electrodes and above said drive electrodes, wherein said cover layer has ridges that protrude out from said topside; wherein a capacitance is formed between each of said drive electrode and each of said sense electrode; wherein said capacitance between any said drive electrode and any said sense electrode reduces under influence of touch on said topside of said cover layer by a finger covering both said electrodes at their intersection in said panel, and then further increases with pressing of said finger on said cover layer by exertion of force by said finger on said panel; wherein said further increase in said capacitance is produced by the pressing of said finger into the region between said ridges.