The present disclosure provides a capacitive touch screen device, a reading method thereof, and a display device. A plurality of pixel units is divided into a plurality of touch detection regions. A touch sensing unit is configured for each touch detection region to detect charges in the touch detection region, thereby reducing a number of touch sensing units and independently collecting the charge detected by each touch sensor unit, further improving sensing accuracy. A plurality of read lines is added to correspond to each column of read units, simplifying in-plane lines.