Three-dimensional display device and method for the same

A method for controlling a three-dimensional display device, wherein the three-dimensional display device comprises:

• a display panel comprising a plurality of pixels arranged as an array, wherein the plurality of pixels comprises left eye pixels and right eye pixels alternately arranged in each row or each column;
• a light-splitting device disposed as being parallel to the display panel and configured for projecting lights emitted by the left eye pixels and right eye pixels to different view areas, wherein the light-splitting device is at a side facing a viewer of the display panel, and a distance h is presented between the light-splitting device and the display panel along a light emission direction of the display device;
• and a distance adjusting device configured for adjusting the distance h between the display panel and the light-splitting device along the light emission direction of the display device according to a variation of a distance H between the viewer and the display panel along the light emission direction of the display device, wherein a proportion of the distance h to the distance H is unchanged,
• the method comprises:
• acquiring a distance adjusting signal;
• and
• adjusting, by the distance adjusting device, the distance h between the light-splitting device and the display panel along the light emission direction of the display device according to the distance adjusting signal;
• and
• wherein the proportion of the distance h to the distance H is identical to a/(a+I), wherein a is a width of each of the plurality of the pixels, and I is an interpupillary distance of the viewer.