An orthographic three-dimensional display device and three-dimensional display system

Abstract

The present invention proposes a front projection three-dimensional display device, comprising: a lens array, the lens array allows the polarized light in the first direction to pass through, and the lens array refracts the polarized light in the second direction; On one side of the lens array, the screen is used to display the unit image array; a wave plate is located between the lens array and the screen; a projector is located on the other side of the lens array and projects the unit to the screen. An image array; wherein, when the polarized light in the second direction passes through the lens array, a three-dimensional image is formed, and the three-dimensional image and the projector are located on the same side of the lens array. The orthographic three-dimensional display device proposed by the invention is reasonable in design and has application value.

Description

technical field [0001] The invention relates to the field of three-dimensional display, in particular to a front projection type three-dimensional display device and a three-dimensional display system. Background technique [0002] Three-dimensional (3D) display technology is one of the important development directions in the display field today, and 3D movies and 3D TVs are gradually popularized. At present, naked-eye 3D display usually adopts the structure of display screen plus lenticular grating or lens array. Due to the high price of large-size display screens, and the stitching will produce seams, it is difficult to achieve large-screen naked-eye 3D display, and it is difficult to enter application scenarios such as movie theaters. In the prior art, a projector is used to project a large-size picture in conjunction with a lenticular grating or a lens array to realize a large-size 3D display. However, this method usually only uses a rear projection method, that is, th...

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