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Holographic display device

A holographic display and display module technology, which is applied in light guides, optics, instruments, etc., can solve problems such as image distortion and color shift of diffraction images, and achieve the effects of improving color shift, reducing differences, and avoiding distortion

Pending Publication Date: 2021-11-26
FU TAI HUA IND SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the holographic display, the light source light of various colors is diffracted by the diffraction structure to obtain a diffraction image. However, the light source light usually includes multiple colors of light. The diffraction efficiency of light is different, which often leads to color shift and image distortion in the final diffraction image

Method used

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Embodiment Construction

[0027] This embodiment provides a holographic display device, specifically, the holographic display device is a head-mounted holographic display device. When the holographic display device is worn on the user's head, it can present a three-dimensional holographic image to the user.

[0028] see figure 1 The holographic display device 10 provided in this embodiment includes a display module 20 , a diffraction module 30 and an optical waveguide 40 disposed between the display module 20 and the diffraction module 30 . The display module 20 is used for emitting light of a first color, light of a second color and light of a third color. In other embodiments, the display module 20 is used to emit the first color light and the second color light. The diffraction module 30 is configured to diffract the light of the first color, the light of the second color and the light of the third color before emitting it. The optical waveguide 40, as a light propagation medium, is arranged on t...

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Abstract

The invention provides a holographic display device which comprises a display module used for emitting at least first color light and second color light, and the luminous efficiency of the first color light is higher than that of the second color light; and a diffraction module is also included, is arranged on an emergent path of the first color light and the second color light and is used for diffracting the first color light with first diffraction efficiency and diffracting the second color light with second diffraction efficiency so as to generate a holographic image, and the first diffraction efficiency is smaller than the second diffraction efficiency.

Description

technical field [0001] The invention relates to the field of holographic display, in particular to a holographic display device. Background technique [0002] The holographic display method combines holographic technology and waveguide technology to achieve the purpose of superimposing virtual images with external scene images in a projected manner. [0003] Holographic products in the prior art include a head-mounted holographic display, and a user can see a three-dimensional holographic image by wearing it on the head. In the holographic display, the light source light of various colors is diffracted by the diffraction structure to obtain a diffraction image. However, the light source light usually includes multiple colors of light. The diffraction efficiency of light is different, which often leads to color shift and image distortion in the final diffraction image. Contents of the invention [0004] One aspect of the present invention provides a holographic display de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/42G03H1/00G03H1/22
CPCG02B27/42G03H1/0005G03H1/2205G03H2001/0088G02B27/0172G02B2027/0116G02B2027/0174G02B6/0026G02B6/005
Inventor 简采毅曾德恩
Owner FU TAI HUA IND SHENZHEN