Information display equipment and information display method

Abstract

The application relates to the technical field of information display and discloses information display equipment and an information display method, which are used for realizing a three-dimensional display image for simultaneously and correctly displaying binocular parallax and focusing information. The information display equipment comprises a space light modulator, a first optical grating, an optical waveguide and a second optical grating, wherein the space light modulator is used for transmitting a holographic three-dimensional light field to the first optical grating, wherein the holographic three-dimensional light field corresponds to at least two focal planes; the first optical grating is used for deflecting the holographic three-dimensional light field transmitted by the space light modulator so as to lead the holographic three-dimensional light field to be propagated and enter the optical waveguide along a first direction; the optical waveguide is used for receiving the holographic three-dimensional light field from the first optical grating and propagating the holographic three-dimensional light field in the optical waveguide; the second optical grating is used for deflecting the holographic three-dimensional light field propagated in the optical waveguide so as to lead the holographic three-dimensional light field to be spread out of the optical waveguide along a second direction and lead a user to see the holographic three-dimensional image corresponding to the holographic three-dimensional light field after the eyes of a user receive the holographic three-dimensional light field spread out along the second direction.

Description

technical field [0001] The embodiments of the present application relate to the field of information display technologies, and in particular, to an information display device and an information display method. Background technique [0002] Augmented Reality (AR) technology is a technology that seamlessly integrates real-world information and virtual world information, and applies information from the virtual world to the real world through scientific technologies such as sensing, computing, and graphics. [0003] At present, there are a wide variety of AR glasses products on the market. The common feature of these products is to map the virtual image to a fixed focal plane, so that users can see the image on the focal plane, and display it to the left and right eyes through parallax. different images to generate a three-dimensional display effect. [0004] A common AR display device application solution is a diffraction grating optical waveguide solution. Briefly, its worki...

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Problems solved by technology

[0006] The embodiment of the present application provides an information display device and an information display method to solve the problem that the information display device has a unique and fixed focal plane when displaying a three-dimensional image

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