Touch display device and driving method thereof

The invention provides a touch display device and a driving method thereof. The touch display device comprises a display panel, a touch element array and a conductor film layer. The touch control element array is used for executing a touch detection action. The conductor film layer is arranged on the touch element array and the display panel. In at least one display period, the conductor film layer receives a first reference voltage, and in at least one touch period of the non-display period, the conductor film layer is in a floating state. 一种触控显示装置及其驱动方法被提出。触控显示装置包括显示面板、触控元件阵列以及导体膜层。触控元件阵列用以执行碰触检测动作。导体膜层设置于触控元件阵列以及显示面板。在至少一显示期间，导体膜层接收第一参考电压，在非显示期间的至少一触控期间，导体膜层为浮接状态。