A semiconductor device package includes a main substrate, at least one thin film transistor (TFT) module, at least one first electronic component, at least one encapsulant and a plurality of light emitting devices. The main substrate has a first surface and a second surface opposite to the first surface. The thin film transistor (TFT) module is disposed adjacent to and electrically connected to the first surface of the main substrate. The first electronic component is disposed adjacent to and electrically connected to the first surface of the main substrate. The encapsulant covers the at least one thin film transistor (TFT) module and the at least one first electronic component. The light emitting devices are electrically connected to the at least one thin film transistor (TFT) module.