Patent ID: 8013879

Claim:
An image display apparatus comprising: a display panel configured to display an image based on an image signal; an illumination module configured to illuminate the display panel with light; and a controller configured to correct at least one of brightness and chromaticity of the light output from the illumination module, wherein the controller comprises a light-on time-factor table that associates light-on time of the illumination module with factors and a light-off time-factor table that associates light-off time of the illumination module with factors, wherein the controller is configured to: calculate a difference as an estimated value, the difference between an accumulatively added value of factors corresponding to the light-on time of the illumination module acquired from the light-on time-factor table and an accumulatively added value of factors corresponding to the light-off time of the illumination module acquired from the light-off time-factor table; and set a correction start point on a correction characteristic preset for correcting at least one of the brightness and the chromaticity of the light output by the illumination module based on the estimated value.