Image display device and image display method

An image display device that forms an image, with a display output that is a combination of quantities of backlight of at least three colors and sub-pixel transmittances of at least three colors, the image display device comprising:

• a drive means for driving the quantities of backlight independently among the at least three colors;
• and
• a memory means for storing crosstalk coefficients required for crosstalk compensation of the light-emission wavelength distribution characteristics of the quantities of backlight with the transmission wavelength distribution characteristics of the sub-pixel transmittances, thereby compensating for non-conformity between the light-emission wavelength distribution characteristics of the quantities of the backlight in one pixel and the transmittance wavelength distribution characteristics of the sub-pixel transmittances in the one pixel;
• wherein the crosstalk coefficients are read from the memory means, and the sub-pixel transmittances of the at least three colors based on the quantities of backlight of the at least three colors are obtained independently in each one pixel.

An image display device comprising:

• a liquid crystal panel;
• a backlight;
• a light emitting diode (LED) drive circuit that independently controls the quantities of each of at least red, green, and blue (RGB) colors generated by a backlight;
• a liquid crystal display (LCD) drive circuit that independently controls the transmittance of each of at least one red sub-pixel, at least one green sub-pixel, and at least one blue sub-pixel of the liquid crystal panel;
• a memory that stores RGB wavelength distribution characteristics of the backlight, and RGB wavelength distribution characteristics of the transmittance of the sub-pixels of the liquid crystal panel;
• and
• a correction coefficient calculation circuit that corrects the transmittance of at least one sub-pixel of the liquid crystal panel using the RGB wavelength distribution characteristics of the backlight stored in the memory, and the RGB wavelength distribution characteristics of the transmittance of the sub-pixels of the liquid crystal panel stored in the memory, thereby compensating for non-conformity between the RGB wavelength distribution characteristics of the quantities of the backlight of the at least one sub-pixel of the liquid crystal panel and the RGB wavelength distribution characteristics of transmittance of the sub-pixels of the liquid crystal panel;
• and
• wherein the sub-pixel transmittances of the at least red, green, and blue (RGB) colors based on the quantities of backlight of the at least red, green, and blue (RGB) colors are obtained independently in each one pixel.