Patent ID: 7956875

Claim:
A display device, comprising: lighting means including a plurality of light emitting devices with different dominant wavelengths in a wavelength distribution; transmittance control means for enabling a displayed image including a plurality of transmittance control devices for controlling light quantity from said lighting means; and correcting means for correcting input image signals; wherein said correcting means includes: target light quantity setting means for setting a target light quantity on the displayed image at a maximum signals, estimated light quantity calculating means for calculating an estimated light quantity from light emitting devices at a maximum signal, matrix coefficient calculating means for calculating matrix coefficients based on said target light quantity and said estimated light quantity, and matrix operation means for correcting the input image signals by said matrix coefficients and operates said transmittance control means; wherein a chromaticity distribution of said plurality of light emitting devices is wider than primary colors displayed by said transmittance control devices; wherein said plurality of light emitting devices have at least three kinds of dominant wavelengths; wherein said plurality of light emitting devices includes a plurality of red LEDs, a plurality of green LEDs and a plurality of blue LEDs; wherein a chromaticity of each red LED of said plurality of red LEDs, a chromaticity of each green LED of said plurality of green LEDs and a chromaticity of each blue LED of said plurality of blue LEDs has a variation; and wherein said matrix operation means reduces changes in chromaticity of the displayed image at said transmittance control means rather than reducing changes in chromaticity of said plurality of light emitting devices at said light emitting means.