Outdoor OLED Display Assembly With Switchable UV Shielding
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Solution Overview
Problem
Existing OLED displays are not suitable for outdoor use due to damage from UV light exposure, thermal loading, and environmental factors like dust and moisture, lacking effective ingress protection and UV protection systems.
Innovation Solution
A system incorporating a controllable UV light blocking medium, such as electrochromic glass, and an ingress protection sealing system with multiple compartments to protect OLED displays from environmental hazards, allowing for disassembly and UV protection activation/deactivation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If OLED displays are used outdoors without protection, then they provide visibility and functionality, but they suffer damage from UV light exposure, thermal loading, dust, and moisture
Solution Approach 1:
The patent applies preliminary anti-action by implementing a controllable UV light blocking medium that is activated before UV damage occurs. The system proactively blocks UV light when the display is not in use, preventing cumulative damage to the OLED panel while maintaining visibility when needed. This anticipatory protection resolves the contradiction by preventing harmful effects before they compromise reliability.
Solution Approach 2:
The patent implements dynamics by making the UV blocking medium controllable and switchable between transparent and blocking states. This dynamic property allows the display to adapt to different operational conditions - remaining transparent during active use for visibility and blocking UV light during inactive periods for protection, thus resolving the contradiction between functionality and durability.
2Object-affected harmful factors
If the OLED display is sealed for environmental protection, then ingress protection is improved, but serviceability and maintenance become difficult
Solution Approach 1:
The patent applies segmentation by dividing the display assembly into separable modules with defined interfaces. The housing is split into first and second portions with a gasketed interface, allowing the display to be disassembled for maintenance while maintaining sealed compartments during operation. This modular segmentation resolves the contradiction by enabling both protection and serviceability.
Solution Approach 2:
The patent uses flexible gaskets as thin film sealing elements that provide ingress protection while allowing for assembly and disassembly. The gasket creates a seal between housing portions during operation but permits controlled separation when maintenance is needed, resolving the contradiction between sealed protection and serviceability.
3Object-affected harmful factors
If a controllable UV light blocking medium is added to protect the OLED, then UV protection is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by integrating the UV blocking medium into the existing display structure, where it serves multiple functions: UV protection when activated and optical transparency when deactivated. The housing portions and gasket system also serve dual purposes of structural support and environmental sealing. This multi-functionality reduces the need for separate dedicated components, resolving the contradiction between protection and complexity.
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 effectively shields OLED displays from UV light and environmental contaminants, extending their lifespan and enabling regular maintenance, while maintaining visibility and aesthetics.
Implementation Method 1
a controllable UV light blocking medium such as electrochromic (EC) glass, Suspended Particle Device Film (SPD), Polymer Dispersed Liquid Crystal (PDLC)
Implementation Method 2
electrochromic (EC) glass
Implementation Method 3
The gasketed interface allows the display to be disassembled for maintenance while maintaining sealed compartments during operation
Data Source
AI summary
A comprehensive system and method construction of an organic lighting diode (OLED) display for regular outdoor use. In one embodiment, the system includes an OLED display that includes an OLED panel with a front side and a back side, a front cover glass with an optional controllable UV light blocking medium coupled to the front side of the OLED panel, a rear cover coupled to the OLED panel. The incorporation of a controllable UV light blocking medium—such as electrochromic (EC) glass, Suspended Particle Device Film (SPD), Polymer Dispersed Liquid Crystal (PDLC) or any other equivalent controllable tinting technology bonded to the front side of the OLED panel—allows the display to protect itself from excess light. The UV light blocking medium can be controlled programmatically, by implementing light sensors, timers or by manual control via a switch or similar device.