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Augmented reality display system

A display system and augmented reality technology, applied in the optical field, can solve the problems of low transmittance, large size, and poor wearing experience, and achieve the effect of large FOV, increased light energy, and increased transmittance

Pending Publication Date: 2021-06-01
CHONGQING IQIYI INTELLIGENT TECHNOLOGY CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0003] However, due to the large size of the AR display system in the prior art, it cannot be made into a glasses-type display system, and the penetration rate is low, which affects the viewing of the external field of view, resulting in a poor wearing experience.

Method used

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Embodiment Construction

[0023] The application will be described in further detail below in conjunction with the accompanying drawings.

[0024] According to one aspect of the present application, an augmented reality display system is provided, including a display image source, a beam folding structure, a light collimation structure, a waveguide substrate, and a waveguide internal reflection surface located in the waveguide substrate, and the beam folding structure It includes a partially reflective and partially transmissive surface; wherein, the partially reflective and partially transmissive surface is used to transmit the light beam from the display image source to the light collimating structure and transmit the light beam reflected by the light collimating structure to the light beam collimating structure. The waveguide substrate, the light collimating structure is used to collimate the light beam and reflect it to the partly reflective part of the transmissive surface, and the waveguide substr...

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Abstract

The invention provides an augmented reality display system which comprises a display image source, a light beam folding structure, a light collimation structure, a waveguide substrate and a waveguide internal reflection surface located in the waveguide substrate, and the light beam folding structure comprises a partial reflection and partial transmission surface; the partial reflection and partial transmission surface is used for transmitting a light beam from the display image source to the light collimation structure and transmitting the light beam reflected by the light collimation structure to the waveguide substrate, and the light collimation structure is used for collimating the light beam and reflecting the light beam to the partial reflection and partial transmission surface. The waveguide substrate is used for reflecting and propagating light beams to enable the light beams to enter the waveguide inner reflecting surface, and the waveguide inner reflecting surface is used for coupling and outputting the light beams to human eyes. According to the scheme of the invention, by using the reflection folding structure, a compact glasses type AR display system can be realized, the external view transmittance can be effectively increased, and a large FOV can be realized.

Description

technical field [0001] The present application relates to the field of optical technology, in particular to an augmented reality display system. Background technique [0002] The display system can be used to make the desired image visible to the user. For example, an optical display system can be used to transmit and display the desired image in the head-mounted device so that the human eye can see it. Augmented Reality (AR) technology is used as a A technology that realizes the combination of virtual and reality has received more and more attention. The AR display system can be used to enable users to experience the virtual effects generated by digital images on the basis of real scenes. In the prior art, the AR display system is usually realized by using Birdbath, free-form surface prism or arrayed waveguide. [0003] However, the AR display system in the prior art cannot be made into a glasses-type display system due to its large volume, and its low penetration rate aff...

Claims

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Application Information

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IPC IPC(8): G02B27/01
CPCG02B27/0172G02B2027/0123G02B2027/0178
Inventor 韩昕彦陈威
Owner CHONGQING IQIYI INTELLIGENT TECHNOLOGY CO LTD
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