Light Field Display Lens Group for Seamless Wide-Angle Imaging
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Solution Overview
Problem
Existing light field display systems face limitations in imaging field of view and distance imaging clarity due to aperture limitations of single lenses, leading to reduced resolution and the formation of splice seams when using spliced display screens.
Innovation Solution
A light field display system comprising spliced light field display modules with a micro-lens array and a lens group that form seamless imaging faces, utilizing biconvex or plano-convex spherical lenses to achieve a large field of view and reduce splice seams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If spliced display screens are used to achieve large field of view, then imaging field of view is improved, but splice seams are formed causing display black areas
Solution Approach 1:
A lens group is introduced as an intermediary optical element between the micro-lens array and the display screen. This lens group includes multiple spliced lenses that correspond one-to-one with the light field display modules, serving as a mediator to bridge the optical paths and eliminate the splice seams caused by direct splicing of display screens.
Solution Approach 2:
The lens group is divided into multiple spliced lenses, each corresponding to a specific light field display module. This segmentation allows each lens to independently optimize the optical path for its corresponding module while maintaining overall seamless integration across the entire display system.
2Device complexity
If single lens aperture is used, then device complexity is reduced, but imaging field angle and resolution are limited
Solution Approach 1:
The optical system is segmented into multiple spliced lenses within the lens group, each lens handling a specific portion of the imaging field. This segmentation enables the system to achieve a larger overall imaging field angle while maintaining manageable complexity through modular lens design.
Solution Approach 2:
The patent transitions from a single-lens planar optical system to a multi-lens three-dimensional arrangement. By stacking and splicing multiple lenses in space, the system achieves enhanced imaging field angle and resolution without significantly increasing the overall device footprint.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enables a seamless, large field of view with improved imaging clarity and single-eye stereoscopic visual display, addressing the issues of reduced resolution and splice seams in previous technologies.
Implementation Method 1
a micro-lens array located on a light-emitting side of the display screen; and a lens group, including a plurality of spliced lenses corresponding to the plurality of light field display modules
Data Source
AI summary
The present disclosure relates to a light field display system including: a plurality of light field display modules spliced at an angle, wherein each of the light field display modules includes a display screen and a micro-lens array located on a light-emitting side of the display screen; a lens group, including a plurality of spliced lenses corresponding to the plurality of light field display modules on a one-to-one basis, wherein the lens group is located on a side, away from the display screen, of the micro-lens array and configured to form a plurality of first imaging faces corresponding to the plurality of light field display modules on a one-to-one basis on one side, away from the micro-lens array, of the display screen, and the plurality of first imaging faces are seamlessly spliced to form a plurality of second imaging faces seamlessly spliced on a side, away from the light field display module, of the plurality of first imaging faces, wherein the first imaging face is configured to display an upright virtual image of the corresponding light field display module.