Autostereoscopic display apparatus

An autosteroscopic display apparatus comprising means for producing a display which comprises an array of display pixels arranged in rows and columns, and an array of elongate lenticular elements extending parallel to one another overlying the display pixel array and through which the display pixels are viewed, the lenticular elements being slanted at an angle to the display pixel columns so as to create repeating groups of display pixels each of which groups is constituted by adjacent pixels in r adjacent rows where r is a number greater than one and the angle of slant of the lenticular elements being substantially equal to tan.sup.-1 H.sub.p /(V.sub.p.r) where H.sub.p and V.sub.p are the pitches of the display pixels in the row and column direction respectively.