Display device and electronic device including the same

An electronic device comprising:

• a processor configured to provide input image data;
• a display device configured to display an image based on the input image data;
• and
• a power supply device configured to supply power to the display device, wherein the display device comprises:
• a display panel including a pixel;
• a power supply configured to receive a first power voltage through an input terminal and output a second power voltage supplied to the display panel to an output terminal;
• and
• a power controller configured to vary an allowable current of the power supply by comparing a current output through the output terminal with a reference current.

A display device comprising:

• a display panel including a pixel;
• a controller configured to output image data corresponding to input image data;
• a data driver configured to provide a data signal corresponding to the image data to the pixel;
• and
• a power supply configured to receive a first power voltage through an input terminal and output a second power voltage supplied to the display panel to an output terminal, wherein:
• the controller is configured to convert the input image data into the image data using a scaling factor, and set the scaling factor so that a current according to the input image data does not exceed a reference current, and
• the power supply is configured to vary an allowable current of the power supply based on the reference current.