The invention relates to a method for displaying three-dimensional images. In the method light beams (L_e) are associated to several different screen points (P) of a screen (20). The light beams (L_e) produce different views associated to different emission directions (E). The emission directions (E) are associated to the individual screen points (P). The light beams (L_e) are generated by projecting light beams (L_d), according to the angle of the adjacent emitting directions. According to the invention, light beams (L_e) without viewing direction information are generated, essentially simultaneously, with pixels (C_d) having different co-ordinates. These pixels (C_d) are pixels of a two-dimension display (50), and they are associated to different emitting directions (E) of the appropriate screen points (P). The light beams (L_e) produced by the pixels (C_d) of the display (50) with different co-ordinates are imaged simultaneously in different deflection directions (D), as a function of the co-ordinates of the pixels (C_d) producing the light beams (L_e). The subject of the invention is an apparatus implementing the above method.