Self-capacitance touch screen with one-dimensional electrodes and coordinate data processing method thereof

The invention discloses a self-capacitance touch screen with one-dimensional electrodes and a coordinate data processing method thereof. The self-capacitance touch screen comprises trapezoidal electrodes, wherein any two adjacent trapezoidal electrodes are arranged in the way that the upper base of one trapezoidal electrode and the lower base of the other trapezoidal electrode are positioned in one straight line and the lower base of the first trapezoidal electrode and the upper base of the other trapezoidal electrode are positioned in another straight line, so that all the trapezoidal electrodes are arranged in a touch plane of the touch screen in an engagement way. The self-capacitance touch screen is only provided with the electrodes in one dimension, a touch position can be accurately positioned from two dimensions, an intersecting part does not exist between every two electrodes and an insulating material is not needed, so that the process difficulty is reduced and the cost is saved. The coordinate data processing method of the invention converts data detected by the one-dimensional electrodes into two-dimensional coordinate data and simplifies the data processing cost.