Display device

A display device comprising:

• a power management integrated circuit configured to output a driving voltage and a gamma voltage, the gamma voltage being less than the driving voltage;
• a timing controller configured to output an image data signal and a driving control signal;
• a data driver configured to convert the image data signal to a data voltage signal based on the driving voltage, the gamma voltage, and the driving control signal;
• a power connecting portion configured to connect the power management integrated circuit and the data driver;
• a voltage detector configured to detect the driving voltage and the gamma voltage that are voltage-dropped in the power connecting portion, and to output a feedback signal;
• and
• a power adjustor configured to receive the feedback signal and to output a power control signal to the power management integrated circuit, the power management integrated circuit being further configured to adjust the driving voltage and the gamma voltage based on the power control signal.