Patent ID: 7889169
Filing Date: 2011-02-15
Classification: G09G

Abstract:
1. 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 memory means in which the light-emission wavelength distribution characteristics of the quantities of backlight and the transmission wavelength distribution characteristics of the sub-pixel transmittances are stored; a correction coefficient calculation circuit for calculating crosstalk coefficients required for crosstalk compensation of the light-emission wavelength distribution characteristics of the quantities of the backlight with the transmission wavelength distribution characteristics of the sub-pixel transmittance, 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; and a drive means for driving the quantities of backlight independently among the at least three colors; wherein the light-emission wavelength distribution characteristics of the quantities of backlight and transmission wavelength distribution characteristics of the sub-pixel transmittances are read out from the memory means, and the sub-pixel transmittance of the at least three colors based on the quantities of the backlight of the at least three colors are obtained independently in each one pixel.