Naked eye 3D (three-dimensional) projection screen and naked eye 3D projection system

Abstract

The invention discloses a naked eye 3D (three-dimensional) front-projection screen, a naked eye 3D rear-projection screen and a naked eye 3D projection system. The front-projection screen comprises a surface biconvex micro-cylindrical lens board and a diffuse reflection layer, wherein multiple rows of micro-cylindrical convex lenses are horizontally and tightly arrayed on two sides of the surfacebiconvex micro-cylindrical lens board; the micro-cylindrical convex lenses on the two sides of the surface biconvex micro-cylindrical lens board are same in quantity and are in one-to-one correspondence; the micro-cylindrical convex lenses are all in a vertical bar shape and are same in pitch; the pitches are positive integral multiples of the pixel width of an image projected onto the projectionscreen by a projector; the diffuse reflection layer is located on the rear focal plane of the surface biconvex micro-cylindrical lens board; and the principle of the rear-projection screen is as sameas that of the front-projection screen. Compared with the prior art, the screen and system provided by the invention have the beneficial effects of simple structure, easiness in processing and assembling and excellent three-dimensional display effect.

Description

technical field [0001] The present invention relates to 3D projection screen technology, in particular to a naked-eye 3D front projection screen, a naked-eye 3D rear projection screen, and a naked-eye 3D projection system using the screens. Background technique [0002] Normal people use their eyes to identify objects in three-dimensional space. When viewing an object in space, people's eyes observe from slightly different angles on the left and right sides. Due to the deviation in angle, it is reflected in the brain. "Stereoscopic vision" will be produced. The combination of two pictures will produce a three-dimensional effect, so that the relationship between the front and back of the object can be judged. The difference in the image formed by the observed object on the retina of the left and right eyes is binocular parallax. The generation of parallax plays a very important role in the formation of stereo vision. [0003] Currently, there are two mainstream methods f...

AI Technical Summary

Problems solved by technology

However, two sets of lens plates are required in this invention, and the structure is repeated, which increases the processing and assembly process and costs

In addition, this invention is aimed at the field of flat panel display. The light is incident from the flat panel display and passes through the grating once, which does not belong to the field of projection display.

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