Free three-dimensional display system

A three-dimensional display and free technology, applied in optics, instruments, optical components, etc., can solve problems such as jumping, parallax flipping, and affecting viewing effects, so as to avoid jumping viewing areas, increase viewing range, and enhance display effects. Effect

Inactive Publication Date: 2018-03-30
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, there are at least the following technical defects in the prior art: image 3 A schematic diagram of a diffusely scattered light source provided for the prior art, such as image 3 As shown, when th

Method used

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Embodiment Construction

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer " and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of ...

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Abstract

The invention provides a free three-dimensional display system which comprises a backlight source, a light control structure and a holographic function screen. The backlight source is used for ejecting light, an included angle between any two emergent light rays is smaller than a preset degree, the light control structure is used for controlling ejecting direction of the emergent light rays in thehorizontal direction, and the holographic function screen is used for diffusing the emergent light rays in the vertical direction. By arranging the backlight source with small included angles betweenemergent light rays, hopping visual areas generated by diffused light are avoided; a diffusion structure is utilized to diffuse the emergent light rays in the vertical direction, so that final observation range in the vertical direction is widened, display effect is enhanced, and three-dimensional display effect with large visual angle and real space sense is realized.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an autostereoscopic display system. Background technique [0002] With the rapid development of today's science and technology, the traditional two-dimensional flat display technology is far from being able to meet the current needs of various industries for depth data and spatial information perception. More and more application fields, such as medical imaging, scientific research, outer space exploration, important teleconferences and military, etc., require the real reconstruction of 3D scenes, so that the viewer can capture relevant information more accurately and accurately conduct Judgment on the spot. [0003] figure 1 A schematic diagram of the ideal cylindrical lens grating display principle provided for the prior art, such as figure 1 As shown, the autostereoscopic display device in the prior art usually consists of a lenticular lens grating and a 2D liquid crystal ...

Claims

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Application Information

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IPC IPC(8): G02B27/22G02B5/02G02B5/32
CPCG02B5/0252G02B5/32G02B30/00G02B30/27
Inventor 桑新柱于迅博刘博阳高鑫刘立杨乐杨神武颜玢玢苑金辉王葵如
Owner BEIJING UNIV OF POSTS & TELECOMM
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