Touch Display Substrate and Method for Driving the Same, Display Device

A method for driving a touch display substrate, the touch display substrate comprises a storage capacitor, a driving transistor, a switching element and a light emitting element, a first electrode of the storage capacitor is coupled to a gate electrode of the driving transistor, a second electrode of the storage capacitor is opposite to the first electrode of the storage capacitor and is coupled to a first electrode of the driving transistor, and a second electrode of the driving transistor, the switching element and the light emitting element are sequentially coupled in series,

• the touch display substrate is further provided with a plurality of touch electrodes which are mutually insulated and a plurality of touch lines, which are mutually insulated, respectively coupled to the touch electrodes, an insulating layer is provided between each of the touch electrodes and a corresponding one of the touch lines, each of the touch electrodes is coupled to the corresponding one of the touch lines through a via hole in the insulating layer, and each of the touch electrodes is formed by the second electrode of the storage capacitor in at least one sub-pixel, the method comprises:
• during a display stage, providing a first voltage signal to each of the touch lines for display;
• during a touch stage, providing a first touch signal to each of the touch lines and receiving a first feedback signal fed back by each of the touch lines,
• wherein during the touch stage, the switching element is controlled to decouple an electrical coupling between the second electrode of the driving transistor and the light emitting element.