A touch display panel including an active device array substrate, a display medium and an opposite substrate is provided. The active device array substrate includes a substrate, a pixel array and a touch sensing layer. The pixel array is disposed on the substrate. The touch sensing layer includes a plurality of first sensing pads disposed on the pixel array and a plurality of bridge conductors embedded in the pixel array. The first sensing pads and the bridge conductors are electrically connected so as to form a plurality of first sensing series.