An array substrate and a display device are provided. The array substrate comprises a plurality of signal lines (40), a plurality of connecting lines (50) and a driving module (60) in a peripheral region (1) outside a display region (2); the connecting lines (50) are configured for connecting the signal lines (40) and the driving module (60), to transmit signal from the signal lines (40) to the driving module (60), wherein, at least one of the connecting lines (50) and at least one of the signal lines (40) are designed to intersect with and insulated from each other in a first region (N). The at least one of the signal lines (40) includes, in a second region (0) other than the first region (N), a first electrode line layer (401) and a second electrode line layer (402), while, in the first region (N), includes the first electrode line layer (401) but does not include the second electrode line layer (402). The array substrate may prevent problems of electrostatic accumulation or short circuit from occurring between the connecting lines (50) and the second electrode line layer (402).