Patent ID: 7893892

Claim:
An image display device, comprising: a circuit for generating drive signals from an input image signal; a plurality of pixels including a light emitting element for emitting light of a predetermined color of red, green, or blue by being applied with said drive signal supplied for each color from said circuit; an adjustment information retrieve means for obtaining information relating to light emission adjustment proportional to the deterioration of said light emitting element; a level adjustment circuit provided in said circuit, for changing a level of an RGB signal before dividing said drive signals to respective RGB colors based on said information obtained by said adjustment information retrieve means; a plurality of data lines for connecting by each color said plurality of pixels repeatedly arranged by a predetermined color arrangement; and a data holding circuit for holding for the respective RGB colors time-series pixel data composing said RGB signal and outputting the pixel data held for the respective colors as said drive signals in parallel with corresponding plurality of said data lines; and wherein said level adjustment circuit changes a level of a direct current voltage supplied to said circuit, proportionally to account for the deterioration of a luminance of said light emitting element, and wherein said level adjustment circuit adjusts a level of said drive signal of at least one color by changing a level of said direct current voltage for necessary times based on said information obtained from said adjustment information retrieve means at a timing that pixel data of a different color is input to said data holding circuit; and said adjustment information retrieve means and said level adjustment circuit further comprise: a plurality of pixels, including pixels of at least each respective RGB color; a detection means for detecting a changing value corresponding to the luminance of the plurality of pixels by measuring the voltage between the ends of the light emitting elements.