Patent ID: 8416165

Claim:
A display device, comprising: a signal processing module comprising: a memory that is divided into two or more sub-memories that can be powered on separately, an image signal processor to receive a first image signal having a first number of bits, and to generate a second image signal from the first image signal using the memory, the image signal processor being configured to receive another first image signal having a second number of bits, the second number being smaller than the first number, and a switching unit to selectively supply power to the two or more sub-memories based on a number of bits of the first image signal; and a display panel to display an image corresponding to the second image signal, wherein the switching unit is configured to supply power to the two or more sub-memories in response to the first image signal having the first number of bits, and to cut off power supply to at least one of the two or more sub-memories in response to the first image signal having the second number of bits.