The present invention provides a display device, which comprises a partially overlapped first electronic module and a second electronic module. Wherein, the first electronic module is composed of a first signal transmission device with its one side extended to form a first extended part. The second electronic module is composed of a second signal transmission device partially overlapped with the first signal transmission device. One side of the second signal transmission device is extended to form a first signal connecting element. The first extended part is overlapped and electrically connected with the first signal connecting element. The overlapped first extended part and the first signal connecting element are partially bended at least to overlap partially with a second signal transmission device. Moreover, the second electronic module inputs or outputs signal through the first signal transmission device of the first electronic module. The display device of the present invention can not only ensure lower production cost but also simple production flows.