Device for augmented reality display and system comprising used for realizing augmented reality display

Abstract

The invention relates to an image display technology, in particular to a device for augmented reality display and a system comprising the device and used for realizing augmented reality display. The device for augmented reality display includes: an optical waveguide lens; a first optical function structure, a second optical function structure, a third optical function structure and a fourth optical function structure which are arranged on the surface of the optical waveguide lens, wherein the second optical function structure and the third optical function structure are located between the first optical function structure and the fourth optical function structure. Light comprising a first electric field component and a second electric field component is coupled into the optical waveguide lens through the first optical function structure, and under the action of the first optical function structure, the first electric field component and the second electric field component of the light are in a first direction and a second direction in the optical waveguide lens respectively. Under the action of the first optical function structure, the light reaches the second optical function structure and the third optical function structure through total reflection, and under the action of the second optical function structure and the third optical function structure, the light reaches the fourth optical function structure through total reflection and is emitted from the fourth optical function structure.

Description

technical field [0001] The present invention relates to image display technology, in particular to a device for augmented reality display and a system including the device for realizing augmented reality display. Background technique [0002] Augmented reality (AR) technology is a new display technology that "seamlessly" integrates real world information and virtual world information. It not only displays the information of the real world, but also displays the virtual information at the same time, so as to realize the mutual complementation and superposition of the two kinds of information. In visual augmented reality, a head-mounted display is used to present a hybrid image of the real world and a computer-generated virtual image superimposed to the user. [0003] Most of the current mainstream near-eye augmented reality display devices use the optical waveguide principle. For example, in a typical augmented reality display device, the image on the micro-display spatial ...

AI Technical Summary

Problems solved by technology

However, there are many disadvantages in the augmented reality display device based on the above working principle

For example, the efficiency in the field of view is not balanced, resulting in bright and dark displays, which affects the experience

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