Patent ID: 8570364

Claim:
A display apparatus comprising: a video signal receiving unit to receive a video signal from an external signal source; a display module including a light source; a power supply unit operable to supply power to the light source in a first power mode and a second power mode; and a controller to determine whether the received video signal is to be displayed in a 3-dimensional mode or a 2-dimensional mode, and to control the power supply unit to supply electrical power to the light source in the first power mode if the received video signal is to be displayed in the 3-dimensional mode and to control the power supply unit to supply electrical power to the light source in the second power mode if the received video signal is to be displayed in the 2-dimensional mode, wherein an amount of electrical power consumed by the light source in the first power mode is different from an amount of electrical power consumed by the light source in the second power mode.