The present application relates to a display apparatus comprising: a display portion which displays a first image and a second image different from the first image to create a stereoscopic image; a separator which separates the first and second images from each other; and an adjuster which adjusts a shape of the separator. The separator includes a barrier portion which blocks image light emitted from the display portion. The barrier portion includes a contour portion which defines a shape of at least one opening that allows transmission of the image light. The contour portion includes a first contour and a second contour facing the first contour. The first and second contours define a continuous opening region inclined at a predetermined angle from a vertical line. At least one of the first and second contours forms protrusions which periodically protrude toward the opening region. Shapes of the protrusions are heterogeneous.