A method for a capacitive touch screen device implementing proximity sensing, wherein the capacitive screen device is made of two layers of sensing channels which are mutually perpendicular, one layer, Rx layer, of said two layers comprising a plurality of receiving electrode sensing channels Rx, and the other layer, Ty layer, of said two layers comprises a plurality of emitting electrode sensing channels Ty, the method comprising: scanning sensing channels of a capacitive touch screen one by one; the method being characterized in that: within a time interval of scanning sensing channels of a capacitive touch screen one by one, performing whole layer scanning for the sensing channels of the capacitive touch screen; wherein performing whole layer scanning includes scanning of the whole Rx layer and/or the whole Ty layer of the sensing channels and wherein, at this time, the whole layer of the sensing channels is equivalent to a capacitor plate; comparing a result of performing the whole layer scanning for the sensing channels of the capacitive touch screen with a preset threshold; wherein the result of performing the whole layer scanning for the sensing channels of the capacitive touch screen is a voltage variation or a capacitance variation of the whole layer of sensing channels; and if the result of the whole layer scanning is larger than the preset threshold, triggering a corresponding processing of a large-area touch event; wherein the preset threshold is larger than a maximum value of all the voltage or capacitance variations in the sensing channels caused by normal single-point and multi-point touch events in the touch screen device. scanning sensing channels of a capacitive touch screen one by one; the method being characterized in that: within a time interval of scanning sensing channels of a capacitive touch screen one by one, performing whole layer scanning for the sensing channels of the capacitive touch screen; wherein performing whole layer scanning includes scanning of the whole Rx layer and/or the whole Ty layer of the sensing channels and wherein, at this time, the whole layer of the sensing channels is equivalent to a capacitor plate; comparing a result of performing the whole layer scanning for the sensing channels of the capacitive touch screen with a preset threshold; wherein the result of performing the whole layer scanning for the sensing channels of the capacitive touch screen is a voltage variation or a capacitance variation of the whole layer of sensing channels; and if the result of the whole layer scanning is larger than the preset threshold, triggering a corresponding processing of a large-area touch event; wherein the preset threshold is larger than a maximum value of all the voltage or capacitance variations in the sensing channels caused by normal single-point and multi-point touch events in the touch screen device. within a time interval of scanning sensing channels of a capacitive touch screen one by one, performing whole layer scanning for the sensing channels of the capacitive touch screen; wherein performing whole layer scanning includes scanning of the whole Rx layer and/or the whole Ty layer of the sensing channels and wherein, at this time, the whole layer of the sensing channels is equivalent to a capacitor plate; comparing a result of performing the whole layer scanning for the sensing channels of the capacitive touch screen with a preset threshold; wherein the result of performing the whole layer scanning for the sensing channels of the capacitive touch screen is a voltage variation or a capacitance variation of the whole layer of sensing channels; and if the result of the whole layer scanning is larger than the preset threshold, triggering a corresponding processing of a large-area touch event; wherein the preset threshold is larger than a maximum value of all the voltage or capacitance variations in the sensing channels caused by normal single-point and multi-point touch events in the touch screen device.