Flat OLED Illumination Device with Integrated Emergency Power Supply
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional lighting devices for vehicles, such as aircraft, require significant construction depth and high energy consumption to achieve homogeneous illumination, leading to costly design and installation challenges, especially in emergency situations where power supply reliability is critical.
Innovation Solution
A flat light-emitting lighting device with an integrated emergency energy supply and control device, utilizing organic light-emitting diodes (OLEDs) that provide low-profile, energy-efficient illumination, and a chargeable energy storage device, allowing for automatic switching to emergency power in case of external supply failure, with a light-transmitting cover for displaying information and symbols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional light bulbs or LEDs are used for illuminated displays, then homogeneous illumination can be achieved, but considerable construction depth is required
Solution Approach 1:
The illumination device is segmented into multiple individual LED light sources arranged in a grid pattern, where each LED contributes to the overall homogeneous illumination. This segmentation allows the use of shallow-mounted LEDs while achieving uniform light distribution across the display surface.
Solution Approach 2:
The patent transitions from point-shaped LEDs to planar-shaped LEDs that emit light from a surface area rather than a point source. This dimensional change from 0D to 2D light emission enables homogeneous illumination with minimal construction depth, as the light is distributed across a plane parallel to the display surface.
2Illumination intensity
If a grid-shaped arrangement of at least 30 LEDs is used to generate homogeneous illumination, then illumination quality improves, but space requirements and device complexity increase
Solution Approach 1:
By using planar-shaped LEDs that emit light from a surface area rather than point sources, the patent reduces the number of individual light sources needed. The planar geometry provides inherent light distribution across the display surface, eliminating the need for complex grid arrangements of 30+ point LEDs and their associated spacing requirements.
3Reliability
If an integrated emergency energy supply is added to ensure continued illumination during emergencies, then reliability improves, but device complexity and energy storage requirements increase
Solution Approach 1:
The emergency energy supply components (capacitor or accumulator battery, charging circuit, and control functions) are merged into a single integrated unit housed within the illumination device. This consolidation simplifies the overall system architecture while ensuring reliable emergency operation, as all necessary components are contained within one compact assembly.
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 offers a shallow, energy-efficient, and reliable lighting solution that eliminates the need for deep recesses and high power consumption, ensuring continued illumination during emergencies with minimal energy storage, reducing installation costs and enhancing safety.
Implementation Method 1
at least one first light-emitting OLED layer
Implementation Method 2
utilizing organic light-emitting diodes (OLEDs)
Implementation Method 3
the emergency energy supply comprises a capacitor circuit
Implementation Method 4
With the use of accumulator batteries a corresponding charging circuit can be provided
Data Source
AI summary
The invention relates to a flat light-emitting lighting device for a vehicle, and to a method for providing emergency energy supply to the lighting device. A shallow installation depth and low power consumption of the lighting device may be ensured by the use of a flat OLED illumination device. Due to the low power consumption of the flat OLED illumination device, an emergency energy supply may be integrated without this increasing the installation depth. Such flat lighting devices, which in the case of emergency are self-supplying, may, for example, be used in aircraft in order to, with suitable icons or text, indicate escape routes or other emergency-relevant information.