Adjusting device, 3D display apparatus and method for controlling the same

A three-dimensional (3D) display apparatus comprising:

• a display panel;
• a grating composed of bars and arranged on a light exit side of the display panel;
• and
• an adjusting device configured to adjust a position of a member to be moved in a display apparatus, the adjusting device comprising:
• a supporting portion which has a groove on a side of the supporting portion adjacent to the member to be moved;
• a rotatable portion which is partly embedded in the groove of the supporting portion and is rotatable in the groove;
• and
• a driving portion configured to drive the rotatable portion to rotate,
• wherein the rotatable portion in the adjusting device is engaged with the member such that the rotatable portion drives the member to move in a direction along which the bars of the grating are arrayed, and wherein the member is the display panel or the grating, and
• wherein the three-dimensional display apparatus further comprises a stopper arranged on a side of the member engaged with the adjusting device and the supporting portion of the adjusting device is positioned in a moving range limited by the stopper and wherein the stopper comprises a first sub-stopper and a second sub-stopper arranged on both sides of the supporting portion respectively in the direction along which the bars of the grating are arrayed, and wherein a spacing between the first sub-stopper and the second sub-stopper is equal to a pitch of the grating.