Patent ID: 7639220

Claim:
A display device for displaying an image in accordance with an image signal, comprising: a plurality of light emitting diodes, each of which outputs different colored light components; an image analyzing device adapted to analyze the image signal, output a plurality of light control signals for controlling an output of each of the light emitting diodes, and calculate an expansion coefficient for expanding an amplitude of the image signal; an output correcting device adapted to correct the light control signals in order to suppress variations in a white balance of the image; a light control device adapted to receive the corrected light control signals and control the output of each of the light emitting diodes based on the corrected light control signals; an expansion processing unit adapted to expand the amplitude of the image signal based on the expansion coefficient calculated by the image analyzing device; and a light modulating device adapted to modulate each of the colored light components in accordance with the image signal, the amplitude of which has been expanded.