Array substrate, display panel and display device

The invention provides an array substrate, a display panel and a display device.The array substrate comprises a substrate, the substrate comprises a display area and a non-display area surrounding the display area, and a gate electrode layer, a source and drain electrode layer, a first passivation layer and a second passivation layer are sequentially stacked on the substrate; the gate electrode layer is arranged close to the substrate, a first slotted hole located in the non-display area is formed in the second passivation layer, the first slotted hole at most penetrates through the source and drain electrode layer to form a first via hole, a second slotted hole located in the non-display area and corresponding to the first via hole is formed in the gate electrode layer, and the second slotted hole is located in the non-display area and corresponds to the first via hole. Therefore, the bottom of the first via hole is recessed. According to the array substrate, the display panel and the display device, the str