Display device and the electronic device

Provided is a display device used to install on an electronic device. The display device comprises a control module, a power supply module, and a display module connected with the power supply module. The control module is used to receive a first signal, so that the power supply module supplies power for the display module, and the display module illuminates. The control module is also used to receive a second signal, so that the power supply module stops to supply power for the display module, and the display module goes out. The invention further discloses an electronic device with the display device.