Hexagonal LED Display Modules Breaking Continuous Dark Lines
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Solution Overview
Problem
Current pixelized display technologies suffer from the formation of visually disturbing continuous lines along horizontal and vertical directions due to the linear arrangement of light emitting elements, leading to decreased image quality and introduction of artifacts like Nyquist frequency folding.
Innovation Solution
The use of hexagonal modules with varied internal light emitter arrangements and the inclusion of light emitting pixels in the supporting structure to break continuous lines, combined with a binary addressing system for pixel control, effectively preventing line continuations across the display surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If light emitting elements are arranged in linear rows and columns to form pixelized displays, then the display structure becomes simple and manufacturing becomes easier, but continuous lines appear in the image causing visual distortion and artifacts
Solution Approach 1:
The patent applies asymmetry by transitioning from symmetric linear row-column arrangements to asymmetric hexagonal module arrangements. Within each hexagonal module, light emitting elements are positioned at asymmetric locations (vertices and/or centers of hexagons), which disrupts the formation of continuous straight lines in the displayed image while maintaining manufacturing simplicity through modular construction.
Solution Approach 2:
The display surface is segmented into multiple hexagonal modules, each containing a subset of light emitting elements. This segmentation breaks the continuous linear arrangement into discrete modular units, preventing the formation of uninterrupted lines across the entire display while keeping each module manufacturable using standard processes.
2Manufacturing precision
If light emitting elements are positioned at regular intervals in a grid pattern, then manufacturing precision requirements are reduced, but artificial lines and Nyquist frequency folding artifacts appear in the image
Solution Approach 1:
The patent introduces asymmetry in the positioning of light emitting elements within hexagonal modules, placing them at vertices and/or centers rather than in simple grid positions. This asymmetric arrangement within each module disrupts the periodicity that causes Nyquist frequency folding artifacts while maintaining ease of manufacturing through standardized module designs.
Solution Approach 2:
The patent transitions from two-dimensional grid arrangements to a hexagonal tiling pattern that incorporates geometric dimensionality changes. The hexagonal modules are arranged in alternating orientations (upward-pointing and downward-pointing), creating a more complex spatial distribution that eliminates artificial line formations while preserving manufacturing simplicity.
3Object-affected harmful factors
If modules are arranged in a hexagonal pattern with varied internal configurations, then continuous lines are broken and image quality improves, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The display is divided into standardized hexagonal modules that can be manufactured independently using consistent processes. Each module contains light emitting elements at specific hexagonal vertices and/or centers, creating a repeatable unit that reduces overall device complexity despite the sophisticated visual pattern achieved when modules are assembled.
Solution Approach 2:
The hexagonal modules serve multiple functions: they define the geometric pattern that breaks continuous lines, provide standardized manufacturing units, and enable flexible arrangement in alternating orientations. This universality reduces device complexity by using a single module type for multiple purposes throughout the display structure.
Data Source
AI summary
Most large public displays systems are built with smaller modules populated with light emitting pixels devices which are then connected together to form a larger surface which is the combined surface area of all the modules. This construction method creates the problem that the supporting and connecting structure that holds the modules together uses a generally small but not totally negligible space between each pair of modules, which is devoid of light emitting pixel devices, which, in turn creates a darker space between the modules. This problem is aggravated by the fact that the modules are generally rectangular, which causes that their edges continue from edge to edge of the whole display, causing darker lines on the display surface, generally horizontal and vertical darker lines. This invention discloses adding light emitting pixel devices on the supporting and connecting structure so that the image is continuous across the full display area.