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Light field display system based on optical waveguide coupled light exit pupil division-combination control

A combined control and display system technology, applied in the direction of instruments, can solve the problems of not having a light and thin structure, and achieve the effect of overcoming the focus-convergence conflict

Active Publication Date: 2022-06-07
驻景(广州)科技有限公司
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the display system described in the above-mentioned patent either requires an external traditional large-size flat display screen, or zooms in to the near-eye area of ​​the observer through a traditional optical magnification structure, and does not have a light and thin structure.

Method used

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  • Light field display system based on optical waveguide coupled light exit pupil division-combination control
  • Light field display system based on optical waveguide coupled light exit pupil division-combination control
  • Light field display system based on optical waveguide coupled light exit pupil division-combination control

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Embodiment Construction

[0093] The display system of the present invention uses the optical waveguide projection unit stack structure as the optical information transmission and projection structure, and controls the split-combination of the exit pupils of the out-coupled light from each optical waveguide projection unit, combined with the polarization characteristics or / and timing characteristics, by each light The waveguide projection unit projects to each eye of the observer corresponding views whose viewpoint distance is smaller than the diameter of the observer's pupil through different out-coupled light exit pupils or different regions of the different out-coupled light exit pupils. Using the spatial superposition of light emitted from different views received by each eye, a light field three-dimensional display system with a thin and light optical structure is built based on the stacked film-like optical waveguides. Compared with the monocular multi-view light field display system disclosed in ...

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Abstract

The invention discloses a light field display system based on optical waveguide coupled light exit pupil division-combination control. At least one optical waveguide projection unit that projects images to a finite projection surface is used as a display unit, and the at least one optical waveguide projection unit is coupled The area segmentation-combination control of the exit pupil, combined with the polarization characteristics or / and timing characteristics, projects views with a distance between the viewpoints smaller than the pupil diameter of the observer to each eye of the observer, and uses the spatial superposition of beams from more than one view to form a monocular Spatial light point distribution that can be naturally focused to realize three-dimensional light field display. With the help of optical waveguides, the display system has a thin and light structure, which can be applied to various screens and portable display terminals, such as head-mounted VR, AR, mobile phones, iPads, etc.

Description

technical field [0001] The present invention relates to three-dimensional display, and more particularly to a light field display system based on the split-combination control of the exit pupil coupled out of the optical waveguide. Background technique [0002] Optical waveguides are commonly used optical structures in the field of 3D display due to their light and thin structure. Especially in the field of augmented reality (AR), thin and light 3D glasses based on optical waveguide structures are being used more and more widely. However, the existing optical waveguide 3D display system is mainly based on the stereoscopic technology, only by projecting only one view to the observer's binocular, and using the binocular vision to converge in space to realize the presentation of three-dimensional depth. But in order to clearly see the corresponding views of the binoculars, the observer needs to focus his / her eyes on the display surface. The resulting focus-convergence conflic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B30/24G02B30/25
Inventor 刘立林滕东东
Owner 驻景(广州)科技有限公司
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