Naked-eye three-dimensional display device

A naked-eye 3D display device, comprising:

• a display component;
• a viewing angle regulator comprising an array of microprism blocks, each of the microprism blocks comprising a first surface close to the display component and a second surface away from the display component, a light from the display component entering the microprism block through the first surface of the microprism block, and then being emitted from the microprism block through the second surface of the microprism block, the second surface of the microprism block forming a first angle with the first surface in a first direction, the second surface of the microprism block forming a second angle with the first surface in a second direction perpendicular to the first direction, an outgoing angle of the light emitted from the second surface of the microprism block being related to the first angle and the second angle;
• wherein the array of microprism blocks are divided into a plurality of groups, and an angle combination of the first angle and the second angle of each of the microprism blocks is preset so that the lights emitted from the same group of microprism blocks converge into the same viewpoint, and the lights emitted from different groups of microprism blocks converge into different viewpoints;
• wherein the plurality of groups comprises at least three groups;
• wherein the microprism blocks belonging to the same group are scattered at different positions, and the microprism blocks belonging to the different groups are staggered;
• and
• wherein the first angle and the second angle each range from 1 to 30 degrees.