Display device

The invention discloses a display device which comprises a first optical lens, a second optical lens, a flat panel display, a polarization selection layer and a quarter-wave plate. The first optical lens has a first focal point, a first central axis, and a first concave surface. The second optical lens has a second focal point, a second central axis and a second concave surface, wherein the first concave surface faces the second concave surface. The flat panel display comprises a display surface, the display surface is arranged at the first focus and faces the first concave surface, and the normal of the display surface is parallel to the first central axis. The polarization selection layer is disposed on the first concave surface and has a penetration axis. The quarter-wave plate is disposed on the second concave surface, wherein the polarization direction of the image light emitted by the display surface is perpendicular to the penetration axis of the polarization selection layer. 本发明公开一种显示设备，包括第一光学镜、第二光学镜、