Three-dimensional light field display system

Abstract

The embodiment of the invention provides a three-dimensional light field display system. The three-dimensional light field display system includes a backlight source, a liquid crystal panel, a cylindrical lens grating, a holographic function screen and a slit grating, wherein the backlight source is used for projecting light to the liquid crystal panel; the liquid crystal panel, the cylindrical lens grating, the holographic function screen and the slit grating are arranged along the propagation direction of the light successively; the liquid crystal panel is used for modulating the light projected from the backlight source; the cylindrical lens grating is used for providing a single-parallax light field with a stereoscopic effect on the basis of the modulated light; the holographic function screen is used to diverge the light field provided by the cylindrical lens grating, so that the observer can see the light field provided by the cylindrical lens grating from different angles; and the slit grating It is used to provide a full-parallax light field with a stereoscopic effect based on the divergent light field. The three-dimensional light field display system provides a single-parallax light field with a stereoscopic effect and a holographic function screen divergence field by setting the cylindrical lens grating, and provides a full-parallax light field with a stereoscopic effect by setting the slit grating, and can realize full parallax viewing through mutual cooperation of the single-parallax light field, the holographic function screen divergence field and the full-parallax light field.

Description

technical field [0001] Embodiments of the present invention relate to the field of optics, and more specifically, to a three-dimensional light field display system. Background technique [0002] Electronic sand table display technology is currently playing an important role in the fields of military command, urban planning, emergency response and housing development. However, most of the existing electronic sand table display technologies are still limited to two-dimensional plane display, which cannot meet the needs for depth data and spatial information perception. The ability to achieve high-definition, large viewing angles, and truly reproduce three-dimensional scenes has become the biggest demand for electronic sand table technology. The existing three-dimensional electronic sand table mainly includes mirror-assisted display and holographic display. The mirror-assisted display technology increases the discomfort of the viewer due to the need to wear special equipment....

AI Technical Summary

Problems solved by technology

Mirror-assisted display technology increases viewer discomfort due to the need to wear special equipment

Although holographic display technology can realistically restore three-dimensional scenes, it still has disadvantages such as small angle, single color, and large amount of data.

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