Display device and display method thereof

A display device, comprising:

• a data acquisition portion, configured to acquire light field information,
• wherein the data acquisition portion comprises a plurality of first optical structures arranged in an array and a plurality of photosensitive unit groups arranged in an array, the plurality of first optical structures are at a light incident side of the plurality of photosensitive unit groups, and the plurality of first optical structures are in one-to-one correspondence with the plurality of photosensitive unit groups;
• a display portion, configured to display the light field information acquired by the data acquisition portion,
• wherein the display portion comprises a plurality of second optical structures arranged in an array and a plurality of sub-pixel groups arranged in an array, the plurality of second optical structures are at a light exit side of the plurality of sub-pixel groups, and the plurality of sub-pixel groups are in one-to-one correspondence with the plurality of second optical structures;
• and
• a control portion, connected with the data acquisition portion and the display portion,
• wherein the control portion is configured to directly store the light field information acquired by the plurality of photosensitive unit groups without algorithm processing, and to transmit the light field information to the plurality of sub-pixel groups, so as to display the light field information.