An information display device and an information display method
An information display device and zoom-in display technology, which can be used in image communication, equipment, color TV components, etc., can solve the problem of unique and fixed focal plane
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[0026] Embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.
[0027] An embodiment of the present application provides an information display device based on a holographic optical element. A holographic three-dimensional image is generated through a spatial light modulator. The holographic three-dimensional image is coupled into an optical waveguide through a grating such as a grating, propagates in the optical waveguide, and then is coupled through the grating. The real three-dimensional display image is a three-dimensional display image that can correctly display binocular parallax and focus information at the same time. In this way, the problem that the traditional information display device fixes the focal plane on a plane so that the convergence point of the human eyes is different from the focus point of the eyeballs is avoided, so that the human eyes can see the true three-dimensional display, and the hum...
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