Patent ID: 8502794

Claim:
A signal detection method for a capacitive touch sensitive display, comprising: providing said capacitive touch sensitive display, including: a double ITO (DITO) structure comprising: a first layer, comprising a plurality of exposed driving conductive strips which receive a driving signal during mutual capacitive detection; a second layer, comprising a plurality of exposed sensing conductive strips that provide a plurality of mutual capacitive coupling signals during mutual capacitive detection, wherein each of said plurality of sensing conductive strips includes an opening, wherein said opening includes a dummy conductive pad that is on the same layer with said opening and is made of the same material with said driving and sensing conductive strips; an insulating layer disposed between said first layer and said second layer; wherein said first layer is closer to an external conductive object than said sensing layer; and wherein said plurality of driving conductive strips intersect with said plurality of sensing conductive strips; a display, wherein said DITO structure is directly disposed thereon; 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.