Electronic Display Assembly Heat Dissipation Pathways
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Solution Overview
Problem
Electronic display apparatuses face reliability issues due to rapid temperature rises from sunlight exposure, leading to reduced component lifespan and potential failures, especially in outdoor environments where heat accumulation affects electronic and optical components.
Innovation Solution
An electronic display assembly with a heat exchanger system comprising internal and external heat dissipation paths, where ambient air flows through an external path to transfer heat generated by the display components to the outside, utilizing multiple pathways to enhance heat dissipation efficiency and prevent moisture and dust ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a display apparatus is placed outdoors under sunlight exposure, then the display apparatus can be used in outdoor environments, but the temperature of the display apparatus rises rapidly causing heat accumulation
Solution Approach 1:
The internal space is divided into multiple heat exchange pathways (first, second, and third pathways) that segment the heat dissipation process. This segmentation allows heat to be efficiently transferred from different regions (liquid crystal panel, backlight module, and internal components) through dedicated pathways to the heat dissipation structure, preventing heat accumulation while maintaining outdoor usability
Solution Approach 2:
A heat dissipation structure (heat exchanger) is introduced as an intermediary between the internal heat-generating components and the external environment. This intermediary structure receives heat from multiple internal pathways and transfers it to ambient air through convection, effectively managing the temperature rise without compromising outdoor adaptability
2Temperature
If heat dissipation structures are added to reduce internal temperature, then heat dissipation efficiency improves, but the device complexity increases
Solution Approach 1:
The heat dissipation structure is designed to combine multiple functions: it serves as both a heat exchange component and a structural element of the display apparatus. The pathways are integrated into the existing device architecture, and the heat dissipation structure performs both thermal management and structural support functions, thereby improving heat dissipation without proportionally increasing complexity
Solution Approach 2:
The heat dissipation structure is designed as a multi-functional component that not only dissipates heat but also potentially serves as a protective element and structural framework. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity while achieving effective heat dissipation
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 reduces the internal temperature of the display assembly, prolonging its lifespan and ensuring reliable operation under harsh conditions by efficiently dissipating heat generated by sunlight and electronic components, while preventing external contaminants from entering.
Implementation Method 1
The third pathway and the external heat dissipation path together form a heat exchanger with at least two channels
Implementation Method 2
The external heat dissipation path carries heat conducted from air flowing through the third pathway
Data Source
AI summary
An electronic display assembly is provided. The electronic display assembly comprises a backlight module, a transparent plate, a liquid crystal panel, an internal heat exchange path and an external heat dissipation path with ambient air flowing through. The liquid crystal panel is disposed between the transparent plate and the backlight module. The internal heat exchange path comprises a first pathway, a second pathway and a third pathway. The first pathway is arranged between the transparent plate and the liquid crystal panel. The second pathway is arranged between the liquid crystal panel and backlight module. The third pathway is located directly behind the backlight module. The external heat dissipation path carries heat conducted from air flowing through the third pathway.