Display device, display system and three-dimension display method

A display system, comprising a display device and a processor, wherein:

• the display device comprises a display panel and at least one camera device arranged on a periphery of the display panel, wherein:
• each of the at least one camera device comprises at least two depth cameras, and a depth-of-field range of any one of the depth cameras does not fully overlap with depth-of-field ranges of the other depth cameras;
• the processor is configured to receive image information captured by the at least one camera device in the display device, to process the image information to obtain a 3D image, and to transmit the 3D image to the display panel;
• the display panel is configured to display the 3D image;
• wherein the display panel is a rectangular display panel, and the at least one camera device is arranged on two longer sides of the display panel;
• and
• an angle of view of each camera device satisfies a relationship of:
• FOV≥2 arctan(a/√{square root over (2)}h);
• wherein FOV is the angle of view of the camera device, h is a near depth-of-field of the camera device, and a is a length of a shorter side of the display device.