US 2010/0060556 A1 · Display Device and Light Adjusting Method Thereof

Abstract

The invention provides a display device and a light adjusting method thereof capable of carrying out light adjustment effectively by the output control of a light source and, preferably, of effecting light adjustment according to color distribution of a displayed image. The display device of the invention that is capable of adjusting a displayed image by changing light flux can include a plurality of light sources having light emitting diodes, an image analyzing unit for outputting a light control signal for controlling the output of each of the light sources, based on an image signal of the displayed image, and a light control device for controlling the output of each of the light sources based on the light control signals.

Claims8

Dependent claims

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;
a light control device adapted to receive the light control signals and control the output of each of the light emitting diodes based on the 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.

3 more elements

Dependencies are inferred from the claim text.

Display Device and Light Adjusting Method Thereof

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Display Device and Light Adjusting Method Thereof

Life of this patent

Abstract

Claims8