A display device includes: a first closed-bottomed lens tube including a first display part on the closed bottom for displaying a first image; a second closed-bottomed lens tube including a second display part on the closed bottom for displaying a second image; and an adjustment mechanism that couples the first lens tube and the second lens tube and is capable of adjusting a distance between the first lens tube and the second lens tube. The adjustment mechanism includes an operable part that adjusts the distance between the first lens tube and the second lens tube.