CAPACITIVE TOUCHSCREEN TERMINAL AND TOUCH DETECTION SYSTEM THEREOF

摘要

The present invention is applied to the technical field of touch control, and provided are a capacitive touchscreen terminal and a touch detection system thereof. The touch detection system comprises: a plurality of first electrode blocks, a driving signal generation module with at least two driving signal output ends, a detection module and a two-dimensional coordinate locating module, wherein each first electrode block can form a capacitive node with a sensing electrode block or the ground and is provided with at least two signal input ends, and each first electrode block is divided into at least one sub-electrode block; and the driving signal generation module drives the first electrode blocks according to a preset time sequence, so that various positions on the at least one sub-electrode block have different signal intensities. The present invention uses the intensity variation of a driving signal between detection nodes to locate a one-dimensional coordinate, and this technology is applied to a single-layer wiring capacitive touchscreen, so that the number of required driving electrode blocks or detection electrodes can be greatly reduced, and therefore, the entire wiring is greatly reduced, the process difficulty is reduced, and the linearity of coordinates is also improved.