Spatial image display apparatus

Abstract

Higher definition three-dimensional display is easily realized. A lenticular lens (2) is disposed so that the lengthwise directions of individual cylindrical lenses (2A) become parallel to the longitudinal direction (Y) of a two-dimensional display section (1). A plurality of lights corresponding to a plurality of view angles are radiated in the space in a plane divisional manner, and the relative positional relation between the pixels of each cylindrical lens (2A) and the two-dimensional display section (1) is periodically changed to periodically change the radiation direction of the displayimage light from arbitrary pixel of each cylindrical lens (2A). An image corresponding to one frame of a three-dimensional video image is displayed in a time divisional manner for each pixel of the two-dimensional display section (1), and the timing of time divisional display in the two-dimensional display section (1) and the timing at which change means changes the relative positional relation are controlled synchronously. This provides three-dimensional display with the plane division manner combined with the time division manner, achieving higher definition three-dimensional display.

Description

technical field [0001] The present invention relates to a device for forming a three-dimensional space image by irradiating a large number of multi-beams corresponding to multiple viewing angles into space, in particular to a space image display device having at least a two-dimensional display device and a lenticular lens. Background technique [0002] A two-lens stereoscopic display device has been known in the past, which realizes stereoscopic vision by presenting images using parallax for both eyes of a viewer. As stereoscopic perception functions of human beings, four functions of binocular parallax, convergence, physiological adjustment, and motion parallax are known. In a two-lens setup, binocular parallax is satisfied, but other senses are often different or inconsistent in recognition. Such variance or inconsistency is unlikely to occur in the real world, causing confusion and fatigue in the human brain. [0003] Therefore, spatial image systems are being developed...

AI Technical Summary

Problems solved by technology

Regarding this configuration method, the following problems are pointed out: when the number of horizontal display directions is increased, the resolution in the horizontal direction of the three-dimensional display is significantly reduced, and besides that, an imbalance in resolution occurs in the horizontal and vertical directions

Regarding this display method, the following problem has been pointed out: since the display color of three-dimensional pixels is changed depending on the horizontal display direction, color shading occurs in a three-dimensional image

Also, this display method has a problem that since the maximum intensity with respect to the horizontal display direction depends on the structural change of each color pixel 102, unevenness of intensity in the horizontal direction occurs on the retinal image

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