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A high viewpoint density light field stereoscopic display device

A stereoscopic display device and viewpoint technology, which are applied to instruments and other directions, can solve the problems of increasing the number of total parallax images and reducing the resolution of stereoscopic images, and achieve the effect of realizing viewpoint density, high light field stereoscopic display, and light field stereoscopic display.

Active Publication Date: 2021-10-26
CHENGDU TECH UNIV
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of a traditional light field stereoscopic display device under the condition that the viewing range remains unchanged, the increase of the viewpoint density leads to a sharp increase in the number of total parallax images, which ultimately leads to a decrease in the resolution of the stereoscopic image. The present invention proposes a high Viewpoint Density Light Field Stereo Display Device

Method used

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  • A high viewpoint density light field stereoscopic display device
  • A high viewpoint density light field stereoscopic display device

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Embodiment Construction

[0026] figure 1 This is a schematic structural diagram of the high viewpoint density light field stereoscopic display device provided in this embodiment. In the figure, x The direction is the horizontal direction in space, y The direction is the vertical direction in space, z direction is with x - y The vertical direction of the plane.

[0027] The high viewpoint density light field stereoscopic display device is composed of a direction-adjustable flat light source, a diffraction grating array 300, a transparent liquid crystal display panel 400, and a vertical scattering layer 500 placed in sequence from back to front.

[0028] Please refer to figure 1 , the direction-adjustable plane light source is composed of a coherent light source array 100 and a lens array 200 . The coherent light source array 100 includes a plurality of coherent light sources, which are placed at the focal length position of the lens array 200 . Some of the coherent light sources in the coherent...

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Abstract

In order to solve the problem that the stereoscopic image resolution of the traditional light field stereoscopic display device decreases under the condition of high viewpoint density, the present invention proposes a high viewpoint density light field stereoscopic display device. The device is composed of a direction-adjustable planar light source, a diffraction grating array, a transparent liquid crystal display panel, and a vertical scattering layer placed in sequence from back to front; The grating array is composed of a large number of diffraction grating sheets; the non-zero main pole of each diffraction grating sheet is used for sub-pixel projection, which can realize high-density viewpoint distribution in a small viewing range and form a three-dimensional display; the direction is adjustable The planar light source can change the incident light direction of the diffraction grating, so that the position of the viewpoint can be moved to cover a larger viewing range. Finally, the present invention can realize light field stereoscopic display with high view point density under the condition of ensuring viewing range and image resolution.

Description

technical field [0001] The present invention belongs to the technical field of stereoscopic display, and more particularly, the present invention relates to a high-viewpoint density light field stereoscopic display device. Background technique [0002] The flat-panel light-field stereoscopic display device provides a true stereoscopic 3D display by forming a high-density viewpoint arrangement in space to form continuous parallax. It usually adopts cylindrical lens grating, slit grating, lens array, etc. to achieve high-density viewpoint arrangement. However, under the condition that the viewing range remains unchanged, the increase in viewpoint density leads to a dramatic increase in the number of total parallax images, which eventually leads to a decrease in the resolution of stereoscopic images. Therefore, the present invention proposes a light field stereoscopic display device with high viewpoint density. The high-viewpoint density light field stereoscopic display devic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B30/32
CPCG02B30/32
Inventor 吕国皎赵百川郑骊
Owner CHENGDU TECH UNIV
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