Patent ID: 8502794
Filing Date: 2013-08-06
Classification: G06F

Abstract:
1. A signal detection method for a capacitive touch sensitive display, comprising: providing said capacitive touch sensitive display, including: sending said driving signal to 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 said sensing information is generated by calculating a plurality of differential values, each differential value is defined as a difference between a pair of sensing conductive strips; wherein when a touch area of an external conductive object is larger than a predetermined area or width, capacitance between said external conductive object and said plurality of driving conductive strips is greater than capacitance between said external conductive object and said plurality of sensing conductive strips.