Mobile phone touch screen completely failed, and what is the reason for the general?
Capacitive screen drift reasons are inherent in the technical deficiencies, the environment potential (including the user's body) and capacitive touch screen away from the far, but much larger than the finger area, they directly affect the touch position of the determination.
Fear of unstable voltage: the general when the finger contact with the capacitive screen, the "suction" take a little bit of current, and then the screen from the four corners of the uniform power to the location of the thumb, and to do so, so capacitive screen Transmission voltage instability, will "drift" or even failure of less than 20% of the best charge immediately.
Afraid of the magnetic field: especially the electromagnetic field, that piece of small magnet in the capacitive screen for a while, the capacitive screen will temporarily fail.
Afraid of oil and sweat and other conductive media: cover the screen will form a conductive layer, causing the screen drift.
Extremely afraid of static: it is easy to breakdown capacitor screen.
