Method for reducing disclinations in a 2D/3D switchable autostereoscopic display

A method for reducing disclinations in an autostereoscopic display device that is electrically switchable from a first view mode to a second view mode, the autostereoscopic display device comprising:

• a display panel, the display panel comprising an array of display pixel elements for producing a display output, the display panel further comprising a linear polarizer configured to filter the display output into a well-defined polarization direction;
• a lenticular device provided over the display panel, the lenticular device being electrically switchable to provide the first view mode or the second view mode, the lenticular device comprising a first optically transparent substrate, the first optically transparent substrate comprising an array of lenticular elements, the lenticular elements having a first inner surface with liquid crystal alignment properties having a first direction of liquid crystal alignment, the lenticular device further comprising a second optically transparent substrate, the second optically transparent substrate having an outer surface facing the linear polarizer, the outer surface being configured to receive the display output, the second optically transparent substrate having a second inner surface with liquid crystal alignment properties having a second direction of liquid crystal alignment that coincides with the polarization direction of the linear polarizer, the first inner surface and the second inner surface facing each other, the lenticular device further comprising a first planar switching electrode arranged at a side of the first optically transparent substrate, the lenticular device further comprising a second planar switching electrode arranged at a side of the second optically transparent substrate, the lenticular device further comprising a liquid crystal medium comprising liquid crystal molecules, the liquid crystal medium being sandwiched between the two-substrates first optically transparent substrate and the second optically transparent substrate and being in contact with the first inner surface and the second inner surface, wherein when the autostereoscopic display device is in the first view mode, the liquid crystal molecules are lying in a plane of the two planar switching electrodes, wherein when the autostereoscopic display device is in the second view mode, the liquid crystal molecules are oriented normal to the two planar switching electrodes;
• and
• a means for applying a switching voltage between the first planar switching electrode and the second planar switching electrode to cause the switching from the first view mode to the second view mode,
• wherein when the autostereoscopic display device is in the first view mode, the liquid crystal molecules define a helix with a twist that is defined by an angle between the first direction of liquid crystal alignment and the second direction of liquid crystal alignment;
• wherein the method comprises varying the angle between the first direction of liquid crystal alignment and the second direction of liquid crystal alignment in the lenticular device, to thereby determine an angle that causes a minimal or an acceptable occurrence of disclinations after switching from the first view mode to the second view mode.