Projection device

The projection device comprises a light source assembly, a display panel and a projection lens, the light source assembly comprises a light-emitting element, and light emitted by the light-emitting element enters the projection lens through the display panel and is emitted out of the projection lens; wherein a first intersection point exists between the optical axis or the equivalent optical axis of the projection lens and the display area of the display panel, and a distance exists between the first intersection point and the center of the display area of the display panel.