Light Field Display Optics for Wide-Angle High-Luminance 3D
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Solution Overview
Problem
Existing three-dimensional image display technologies face challenges in achieving high luminance while maintaining a wide viewing angle, with lens-based methods offering higher luminance but narrower angles and barrier-based methods providing wider angles but lower luminance.
Innovation Solution
A light field display apparatus incorporating a display panel, a first lens array, a second lens array, and a barrier with adjustable apertures, configured to emit light that forms an image, and adjusts aperture ratios based on three-dimensional information to balance luminance and viewing angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If lens-based method is used for three-dimensional image display, then luminance is improved, but viewing angle deteriorates
Solution Approach 1:
The patent combines lens-based method and barrier-based method into a hybrid light field display system. The display includes both lens arrays for light convergence and a barrier structure with apertures for light direction control, merging the advantages of both methods to achieve high luminance and wide viewing angle simultaneously
Solution Approach 2:
The barrier is divided into multiple regions with different aperture configurations, and the lens array is segmented into multiple lens elements. This segmentation allows different regions to handle different viewing zones, optimizing both luminance and viewing angle for various observation positions
2Area of moving object
If barrier-based method is used for three-dimensional image display, then viewing angle is improved, but luminance deteriorates
Solution Approach 1:
The patent combines lens-based method and barrier-based method into a hybrid light field display system. The display includes both lens arrays for light convergence and a barrier structure with apertures for light direction control, merging the advantages of both methods to achieve high luminance and wide viewing angle simultaneously
Solution Approach 2:
The barrier aperture configuration is optimized dynamically for different viewing conditions. The system adjusts the effective aperture usage based on viewing angle requirements, allowing the barrier to adapt between providing wide viewing angle and maintaining luminance efficiency
3Illumination intensity
If aperture ratio is increased to improve luminance, then crosstalk increases and image quality deteriorates
Solution Approach 1:
Different regions of the barrier have different aperture ratios optimized for their specific functions. The barrier includes both large apertures for high luminance in central viewing zones and smaller apertures for reduced crosstalk in peripheral zones, achieving local optimization of both luminance and image quality
Solution Approach 2:
The system incorporates crosstalk detection and correction mechanisms that provide feedback to optimize aperture configuration. By monitoring image quality and crosstalk levels, the system adjusts aperture usage to maintain high luminance while preventing excessive crosstalk
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 apparatus achieves high-luminance three-dimensional images with a viewing angle of 60 degrees or more, ensuring high-quality images across a wide viewing range by reducing crosstalk and optimizing aperture ratios based on stereoscopic effects.
Implementation Method 1
a first lens array which is provided in the display panel and in which a plurality of first lenses are arranged, a second lens array which is arranged spaced apart from the first lens array and in which a plurality of second lenses are arranged
Implementation Method 2
a barrier arranged in any one place from among between the display panel and the first lens array, between the first lens array and the second lens array, or in front of the second lens array, wherein the barrier has an aperture that transmits the light
Data Source
AI summary
A light field display apparatus is provided. The light field display apparatus includes a display panel configured to emit light that forms an image, a first lens array which is provided in the display panel and in which a plurality of first lenses are arranged, a second lens array which is arranged spaced apart from the first lens array and in which a plurality of second lenses are arranged, and a barrier arranged in any one place from among between the display panel and the first lens array, between the first lens array and the second lens array, or in front of the second lens array, wherein the barrier has an aperture that transmits the light.