Patent ID: 8248395

Claim:
An image display device comprising an image display panel with an image detection function provided with an active matrix substrate and a counter-substrate, the active matrix substrate being provided with a plurality of pixels disposed in a matrix, and a plurality of photosensors disposed in correspondence with the pixels in a display region, the plurality of pixels each having a plurality of sub-pixels, and the image display device comprising a color filter in which colors of color layers are formed in correspondence with the sub-pixels, wherein the photosensors have an incident light wavelength characteristic in which a photoreception sensitivity to light that passes through, among the colors of color layers, the color layer whose color is most toward a short wavelength side is higher than a photoreception sensitivity to light that passes through, among the colors of color layers, the color layer whose color is most toward a long wavelength side, and the photosensors are disposed such that, with respect to a thickness direction of the image display panel, photodetection regions of the photosensors overlap with, among the plurality of color layers, the color layer whose color is most toward the long wavelength side.