Display system

A display system installed in an automobile, the display system comprising:

• an emitter including a display having a display surface that displays a picture of an area behind the automobile, the emitter emitting the picture as light;
• and
• a concave mirror having a final reflective surface that is concave and having an attitude that is freely changeable,
• wherein the light emitted from the emitter is directly or indirectly incident on the final reflective surface, and the final reflective surface reflects the light which is incident toward an eye of an observer,
• a tangent line extending along a plane orthogonal to an up-down direction of the automobile and contacting a center of the final reflective surface is, in top view, parallel to a straight line extending in a width direction of the display surface within a range in which the attitude is changeable, and
• in top view, of an angle formed by a straight line connecting the center of the final reflective surface with a center of the display surface and the tangent line of the final reflective surface, a supplementary angle which is supplementary to an angle that is on a rear side with respect to the automobile and that is on a side where the observer is present is an acute angle of less than 90 degrees.