Modular 3D Light Field LED Wall Panels for Seamless Wide-FOV Viewing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing LED wall displays struggle to provide high-quality, glasses-free 3D viewing with sufficient resolution and viewing range, as they face limitations in pixel size, resolution loss, and the need for complex alignment and calibration processes, leading to issues like resolution reduction, narrow viewing angles, and non-seamless tiling.
Innovation Solution
A modular 3D light field LED display with uniformly arranged panels, each comprising multiple LED emitters and a panel optics system that directs light beams into various directions, achieving a wide field of view with high angular resolution, allowing seamless tiling and continuous 3D vision without invalid zones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional LED wall displays are used for 3D viewing, then the display can provide high brightness and wide color gamut, but the resolution is reduced and viewing angle is limited due to pixel size constraints
Solution Approach 1:
Each pixel is divided into multiple sub-pixels (e.g., red, green, blue sub-pixels), and each sub-pixel is equipped with its own optical element. This segmentation allows each sub-pixel to emit light in a specific direction while maintaining the overall pixel structure, thereby achieving high resolution 3D display without sacrificing brightness
Solution Approach 2:
The patent introduces a vertical dimension to light emission by using optical elements (lenses or prisms) that direct light at different angles. Instead of only horizontal light distribution, the system creates multiple light beams in different spatial directions from each sub-pixel, enabling glasses-free 3D viewing with high angular resolution
2Adaptability or versatility
If the number of LED emitters per pixel is increased to improve 3D light field quality, then the viewing range and angular resolution are improved, but the pixel size and overall display complexity increase
Solution Approach 1:
The optical elements (lenses or prisms) serve multiple functions: they direct light in specific directions, create multiple virtual images, and enable glasses-free 3D viewing. This multi-functionality allows the system to achieve wide viewing range and high angular resolution without proportionally increasing complexity
Solution Approach 2:
Different optical elements are positioned at different locations within each pixel to create specific light distribution patterns. Each sub-pixel's optical element is optimized for its specific color and position, creating localized quality variations that collectively produce high-fidelity 3D light field across the entire display
3Adaptability or versatility
If modular LED panels are used to build large-scale displays, then the display can be scaled and adapted to different sizes, but tiling artifacts and non-seamless appearance occur at panel boundaries
Solution Approach 1:
The optical element design and sub-pixel arrangement are standardized as repeatable modules that can be copied across multiple panels. This consistent replication ensures that adjacent panels produce identical light field patterns at their boundaries, making seams invisible and creating a seamless large-scale display
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 solution enables a high-density, modular 3D LED display with a large number of individually controlled light beams, providing a continuous 3D view over a wide field of view without resolution loss or tiling artifacts, suitable for large-scale and scalable applications.
Implementation Method 1
modular 3D light field LED wall display 1, comprising uniform panels 10, each of the panel comprise a LED backplane 30, comprising pixels P, each incorporating multiple LED emitters 20
Implementation Method 2
an optical means is placed over the LED emitters 20 to direct multiple light beams into multiple directions from each pixel P
Implementation Method 3
optical means is placed over the LED emitters 20 to direct multiple light beams into multiple directions
Data Source
Figure 1a~2
Figure 3~4
Figure 5~7
AI summary
Modular 3D light field LED wall display composed of uniform panels (10), connected to each other mechanically and electrically, each of the uniform panels (10) comprising - a LED backplane (30) comprising pixels (P), each incorporating multiple LED emitters (20), - an optical means placed over the LED emitters (20) to direct multiple light beams into multiple directions from each pixel (P), - the panels further comprising LED driver electronics (34) and connectors (35), in which - the LED emitters are individually controlled LED emitters arranged in a predetermined pattern of LED emitters within a LED pixel, - the optical means is realized as a panel optics (40) having the same size and form as the panel, comprising multiple optical surfaces, forming a lens array, containing integer number of straight oriented lenslets (42) with straight edges, corresponding to the pixel (P) arrangement, forming a seamlessly tile-able array, - the light beam from each LED emitter (20) is directed into one direction by the panel optics (40), and the light beams (L1... LN) emitted from the pixel (P) into the multiple directions cover a contiguous angular range a in a single lobe, where each of the light beams having a divergence (δ) in order to provide a continuously changing 3D vision, - the multiple light beams (L1...LN) from all the pixels (P) generate a continuous 3D light field providing natural 3D view over a wide field-of-view (FOV) with a high angular resolution. Both large-scale horizontal-only-parallax (HOP) 3D light field LED wall displays and full-parallax panels based on backplanes with micro-LED arrays are described. Disclosed is further a method for displaying 3D images on a 3D LED wall display.