Multiple view directional display having display layer and parallax optic sandwiched between substrates

A multiple view display 58, for example for use in an autostereoscopic system or dual view display, comprises an image display layer or element 8 such as a liquid crystal display (LCD), plasma display or organic light-emitting device (OLED) sandwiched between first and second transparent substrates 6 and 7. A parallax optical device 13, such as a parallax barrier aperture array, may be disposed within or adjacent the image display element or the substrates. Colour filters 18 may be positioned in second substrate 7 and switching elements such as thin film transistors (TFTs) may be provided in substrate 6. A resin, plastics or glass spacer 20 may be present. A range of further embodiments are disclosed, including: providing the parallax barrier and colour filters in the same plane and substrate (Figures 6(c) and 6(d)); forming the parallax barrier elements in recesses below the filter elements (e.g. see 14, 16: Figures 9(a) and 9(b)), which may be triangular recesses - see Figure 12(a); and incorporating various types of lenticular lens arrays.