An image display device includes a plurality of display elements configured to emit image light corresponding to a plurality of separate areas, and an ocular optical system configured to emit, to a position corresponding to an eye of an observer, the image light emitted from the plurality of display elements. The ocular optical system causes images to overlap with each other in a blending area including a boundary between the plurality of areas. An overlapping angle width in a direction orthogonal to the boundary of the blending area on a central visual field side is smaller than an overlapping angle width in the direction orthogonal to the boundary of the blending area on a peripheral visual field side.