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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

Active Publication Date: 2020-07-28
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • An information display device and an information display method

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Embodiment Construction

[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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Abstract

The present application relates to the field of information display technology, and discloses an information display device and an information display method, which are used to realize a three-dimensional display image that correctly displays binocular parallax and focus information at the same time. The information display device includes: a spatial light modulator, configured to emit a holographic three-dimensional light field to a first grating, and the holographic three-dimensional light field corresponds to at least two focal planes; deflection, so that the holographic three-dimensional light field propagates into the optical waveguide along the first direction; It is used to deflect the holographic three-dimensional light field propagating in the optical waveguide, so that the holographic three-dimensional light field is transmitted out of the optical waveguide along the second direction, and the user's eyes receive the holographic three-dimensional light field transmitted along the second direction Finally, you can see the holographic three-dimensional image corresponding to the holographic three-dimensional light field.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/01G02B30/30G03H1/12
CPCG02B27/0172G02B27/4205G02B2027/0174G03H1/2202G02B6/124G02B27/0103G02B2027/012G02B2027/0127G02B2027/0134G03H1/12G02B6/02085H04N9/3102H04N9/3173
Inventor 林涛周鹏程李燕
Owner HUAWEI TECH CO LTD
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