Dual-Circulation Display Cooling for Polarizer Heat Buildup
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Solution Overview
Problem
Conventional display devices suffer from ineffective heat dissipation from the polarizer, leading to abnormal screen displays due to thermal energy accumulation and chemical reactions caused by heat sources.
Innovation Solution
A display device design incorporating independent inner and outer circulation assemblies, featuring air ducts, fan assemblies, and heat sink fins to dissipate heat from both the panel and inner cavity, utilizing separate air flows to reduce thermal energy accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional heat dissipation mechanisms (fan and heat sink fin) are used on the back light module, then heat dissipation is provided, but heat dissipation from the polarizer is ineffective and thermal energy accumulation occurs
Solution Approach 1:
The heat dissipation system is divided into two independent circulation assemblies: an inner circulation assembly for dissipating heat from the polarizer and other internal components, and an outer circulation assembly for dissipating heat from the back light module and other external components. Each assembly has its own fan and heat sink, allowing targeted heat dissipation that was not achieved by conventional single-system approaches.
2Temperature
If a single circulation system is used, then device complexity is reduced, but heat dissipation coverage is insufficient for both panel and cavity
Solution Approach 1:
The circulation system is segmented into inner and outer assemblies with distinct functions. The inner circulation assembly handles heat from the polarizer and internal cavity, while the outer circulation assembly handles heat from the back light module. This segmentation allows comprehensive heat dissipation coverage without requiring a single complex system that would be difficult to design and implement.
3Reliability
If heat dissipation is not provided to the polarizer, then device complexity is reduced, but chemical reactions occur due to temperature and screen display becomes abnormal
Solution Approach 1:
The inner circulation assembly is specifically designed to address the polarizer heat dissipation problem. It includes an inner fan and inner heat sink positioned to directly cool the polarizer and internal components, preventing the thermal-induced chemical reactions that cause screen abnormalities. This targeted approach ensures reliability without adding excessive complexity compared to conventional systems.
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
Effective heat dissipation is achieved on both the exterior and interior components of the display device, preventing thermal energy buildup and maintaining stable screen performance.
Implementation Method 1
Each of the outer circulation assemblies includes an air duct element and a fan assembly. The air duct element guides an air flow generated by the fan assembly to the panel.
Implementation Method 2
The outer circulation assembly includes a heat sink fin, a heat filter, and a cooling chip. The heat sink fin is arranged on the heat filter.
Implementation Method 3
The air duct element guides an air flow generated by the fan assembly to the panel, enabling heat dissipation through convective heat transfer.
Implementation Method 4
The inner circulation assembly includes a first fan element and a second fan element. The first fan element and the second fan element are arranged on two opposite ends.
Data Source
AI summary
A display device is provided, including a housing, a panel, two outer circulation assemblies, an inner circulation assembly, and an optical device. The housing includes a closed inner space and a first side surface and a second side surface opposite to each other. The panel is adjacent to the first side surface and the second side surface. The two outer circulation assemblies are respectively arranged on the first side surface and the second side surface, and includes an air duct element to guides an air and a fan assembly. The air duct element guides an air. The inner circulation assembly is arranged in the inner space and includes a first fan element and a second fan element. The first fan element and the second fan element are arranged on two opposite ends. The optical device is arranged in the inner space and located on an end opposite to the panel.