Integrated Micro-LED Aircraft Cabin Panels
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Solution Overview
Problem
Conventional aircraft cabin lighting, signage, and display systems are typically separate and high-maintenance, with limited interactivity and increased weight due to individual power sources and wiring, offering limited options beyond basic on/off and dimming.
Innovation Solution
An integrated micro-LED signage, lighting, and display system that includes flexible substrates with embedded LED tiles and a microcontroller, allowing for customizable luminous and display outputs on various aircraft surfaces, reducing weight and complexity by consolidating functions into a single system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate lighting, signage, and display systems are used, then each system can be independently controlled and maintained, but the overall system complexity increases, weight increases due to multiple power sources and wiring, and maintenance requirements increase
Solution Approach 1:
The patent combines separate lighting, signage, and display systems into a single integrated LED-based system. The monument includes LED tiles with phosphor conversion layers that can simultaneously provide illumination, static signage, and dynamic display content through a unified control architecture, eliminating the need for separate power sources and wiring systems for each function.
Solution Approach 2:
The LED tiles are designed to perform multiple functions: they can provide uniform ambient lighting, display static signage text, show dynamic video content, and combine these modes simultaneously. The same physical infrastructure (LED tiles, power supply, control system) supports all these different operational modes, making the system universal rather than requiring separate specialized systems.
2Reliability
If individual bulbs and separate systems are used for lighting and signage, then each component can be optimized for its specific function, but maintenance becomes more difficult and time-consuming due to the need to replace or repair individual bulbs
Solution Approach 1:
The patent integrates lighting and signage functions into unified LED assemblies where the same LED tiles and phosphor layers provide both illumination and signage display. This eliminates individual bulbs that would need separate replacement, as the integrated LED modules have longer operational lifetimes and fewer failure points.
Solution Approach 2:
The system uses adjustable LED brightness and phosphor conversion characteristics to provide different lighting conditions and signage visibility without changing physical components. By varying electrical parameters (current, voltage, PWM dimming) and optical properties (phosphor mix ratios), the system adapts to different operational requirements while maintaining the same physical infrastructure.
3Adaptability or versatility
If conventional fluorescent lighting and separate display screens are used, then each system can be optimized for its primary function, but the overall weight increases due to multiple power sources and wiring systems
Solution Approach 1:
The patent consolidates multiple power sources and wiring systems into a single integrated power supply and control architecture. The LED tiles with phosphor conversion layers replace both fluorescent lighting fixtures and separate display screens, eliminating redundant power converters, wiring harnesses, and mounting structures associated with multiple independent systems.
Solution Approach 2:
The integrated LED system provides universal functionality for both lighting and display applications using the same physical components. The LED tiles can operate in lighting mode, display mode, or combined mode, eliminating the need for separate heavy infrastructure for each function and reducing overall system weight while maintaining full capability.
4Ease of manufacture
If traditional backlighting systems are used for signage, then simple static display is achieved, but interactivity and display quality are limited compared to modern display requirements
Solution Approach 1:
The patent uses adjustable LED brightness levels, phosphor conversion ratios, and PWM dimming control to create multiple display modes and interactive capabilities from the same physical infrastructure. By changing electrical and optical parameters, the system can transition between simple static signage and dynamic interactive display modes, providing versatility without complicating the physical structure.
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 provides high-resolution graphic and video displays, adjustable lighting, and unified signage across aircraft surfaces, enhancing cabin ambiance and reducing maintenance needs while minimizing weight and complexity.
Implementation Method 1
The tile may include a phosphor layer between the LED array and the decorative layer, the phosphor layer configured to convert light from the LED array to a different wavelength
Implementation Method 2
The monument panel may include a light guide layer between the LED array and the phosphor layer, the light guide layer configured to redirect light from the LED array
Data Source
AI summary
An integrated aircraft lighting and display panel includes high-density arrays of micro-scale light-emitting diodes (LED) set into arrays (e.g., linear, two-dimensional, freeform) to form tiles, the LED tiles combined and interconnected to form LED panels conformable to any interior surface within an aircraft cabin. The PCB and LED arrays may be set into structural layers corresponding to overhead panels, side panels, bin panels, divider panels, doorway panels, galley and monument panels, or other interior structural panels of the aircraft. The LED arrays may be activated by an onboard video processor and local panel-level controllers to provide cabin lighting, indicate aircraft signage, display high-resolution image or video graphics, or simultaneously blend any combination thereof, either on command or in response to detected conditions.