To obtain a video display device where color slurring is little and which has a large pupil while eliminating trouble such as ghost caused by unnecessary light by changing diffraction efficiency according to a spot on the grating surface of a diffraction grating.

This device is provided with a video display means displaying a video, and an ocular optical system forming the image of the video on the retina of a user. In such a case, a 1st diffraction means 1 and a 2nd diffraction means 2 are arranged in an optical path where an exit pupil is formed by the video display means and the ocular optical system, and the 2nd diffraction means 2 is provided with plural areas having different diffraction efficiency characteristic along the diffraction surface. It is conceivable that the diffraction efficiency characteristic is continuously changed on the diffraction surface or it is constituted of a center part where the diffraction efficiency of zero-order light is high and a peripheral part where the diffraction efficiency of zero-order light is low.