Abstract: A switchable display device which is arranged to switch a portion of the display device between a single-view mode and a multi-view mode is disclosed. The display device includes: a processor to receive an information signal, the information signal having a format comprising structured elements corresponding to pixels, having respective luminance values and corresponding distance indicators; light generating unit to generate using of the information signal; optical unit to transfer the generated light in dependence of an actual view mode of the portion of the display device, the actual view mode being either the single-view mode or the multi-view mode; and wherein the processor detects the actual view mode of the portion of the display device using the respective distance indicators, and wherein the distance indicators are used for switching between the single-view and multi-view mode.

Abstract: A unit for an method of analyzing received image data to determine whether the received image data corresponds to a single-view or to multiple views is disclosed. The method comprises: dividing the received image data (200) into a number of structures (1-9) of data elements (224-234); computing a correlation between a first one (1) of the structures of data elements and a second one (2) of the structures of data elements; and establishing that the received image-data corresponds to multiple views on basis of the correlation between the first one of the structures of data elements and the second one of the structures of data elements.

Abstract: A backlight (100) for a display comprises a planar light guide (102) through which light is guided by internal reflection. The light guide is provided with a first plurality of parallel structures (129) essentially along a first direction and a second plurality of parallel structures (122) provided essentially along a second direction, said second direction being substantially perpendicular to said first direction. The first plurality of structures are configured to direct light propagating along said second direction within the light guide, out of a face (110) of the light guide and the second plurality of structures are configured to direct light propagating along said first direction within the light guide, out of a face of the light guide.

Abstract: A switchable display device (100) which is arranged to switch a portion of the display device (100) between a single-view mode and a multi-view mode is disclosed. The display device (100) comprises: receiving means (102) for receiving an information signal, the information signal having a format comprising structured elements having respective luminance values (234-244) and corresponding distance indicators (202-212); light generating means (108) for generating light on basis of the information signal; optical means (110) for transferring the generated light in dependence of an actual view mode of the portion of the display device (100), the actual view mode being either the single-view mode or the multi-view mode; and mode detection means (104) for detecting the actual view mode of the portion of the display device (100) on basis of the respective distance indicators (202-212).

Abstract: In a stereoscopic display apparatus having optical directory elements such as lenticular elements (4) extending parallel to each other and being slanted at an angle to one of the rows and columns of picture element the picture elements (2) are positioned out of focus at the optical directory elements, in such a manner that the modulation depth of “dark bands” is minimized.

Abstract: A unit for an method of analyzing received image data to determine whether the received image data corresponds to a single-view or to multiple views is disclosed. The method comprises: dividing the received image data (200) into a number of structures (1-9) of data elements (224-234); computing a correlation between a first one (1) of the structures of data elements and a second one (2) of the structures of data elements; and establishing that the received image -data corresponds to multiple views on basis of the correlation between the first one of the structures of data elements and the second one of the structures of data elements.