On the touch pads, a defect is frequently ascended the lack of stylus. It is generally related to the technology used: capacitive screens placed in front of the stage with the iPhone and now the iPad, are not suited to this type of devices. To simplify, capacitive screens are in the form of a fine grid or passes a small current.
When you spend a finger on the grid in question, the conductivity of the latter changes the charge at a point x and it is therefore possible to determine the position of the finger. The operation involves two things: a minimum contact area (6 mm in general) and the use of a conductive component.
When you spend a finger on the grid in question, the conductivity of the latter changes the charge at a point x and it is therefore possible to determine the position of the finger. The operation involves two things: a minimum contact area (6 mm in general) and the use of a conductive component.