Patent ID: 8531426
Filing Date: 2013-09-10
Classification: G06F

Abstract:
1. A detection method for a capacitive touch sensitive display, comprising: providing a capacitive touch sensitive display for operated by at least one external conductive object, including: sending said driving signal to at a first driving conductive strip of said plurality of driving conductive strips continuously; generating a sensing information based on said mutual capacitive coupling signals provided by said plurality of sensing conductive strips each time when said driving signal is sent to said first driving conductive strip, wherein each value of said sensing information is a dual difference value between a first difference value and a second difference value, wherein said first difference value is a difference between a first and second sensing conductive strips among three neighboring conducting strips and said second difference value is a difference between a third and said second sensing conductive strips among said three neighboring sensing conductive strips; wherein two zero-crossings in said sensing information corresponds to a touch or proximity of an external conductive object and a zero-crossing is between a positive value and a negative value.