Display Module Heat Dissipation via Segmented Air Channels
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Solution Overview
Problem
Current heat dissipation technologies for display modules are inefficient, particularly for larger sizes with multiple light sources, leading to heat accumulation and potential malfunction, as they rely on local heat conduction and are not well-suited for air convection due to air purity concerns.
Innovation Solution
A heat dissipater design featuring a frame with strategically placed inlets and outlets forming air channels between components, equipped with filtration screens to ensure clean air convection, and the use of fans to enhance heat dissipation, maintaining air purity and preventing contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heat dissipation devices are formed on installation strips, then heat dissipation is provided for the display module, but heat dissipation efficiency is poor when the display module is large with multiple light sources
Solution Approach 1:
The display module is divided into multiple regions with separate heat dissipation channels. Each region has its own air inlet and air outlet, allowing independent heat dissipation paths. This segmentation enables each channel to effectively manage heat from specific light source regions, preventing heat accumulation even in large-sized modules with multiple light sources.
2Temperature
If air convection is used to enhance heat dissipation efficiency, then heat dissipation is improved, but air purity is compromised leading to potential display resolution issues
Solution Approach 1:
The harmful factor (unfiltered air) is extracted and separated from the heat dissipation system by introducing filtration screens at air inlets and outlets. These screens filter out contaminants before air enters the display module interior, allowing air convection to be used for heat dissipation while maintaining air purity and preventing display resolution issues.
3Area of stationary object
If multiple light sources are added to match large size requirements, then display coverage is improved, but heat accumulation increases causing malfunction
Solution Approach 1:
Multiple independent heat dissipation channels are created, each corresponding to regions with light sources. This segmentation allows heat from each light source to be dissipated through its own dedicated channel, preventing heat accumulation even when multiple light sources are used to cover large display areas.
4Ease of manufacture
If conventional heat dissipation structures are used, then manufacturing is simple, but heat dissipation capacity is insufficient for large display modules
Solution Approach 1:
The frame structure serves multiple functions: it provides structural support for the display module and simultaneously forms heat dissipation channels through strategically positioned air inlets and outlets. This multi-functionality allows the same structural elements to contribute to both manufacturing simplicity and enhanced heat dissipation capacity.
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 effectively dissipates heat through air convection, maintaining clean air quality and preventing contamination, thereby improving the reliability and efficiency of heat management in display modules.
Implementation Method 1
The first inlet and the first outlet together define a first airway inside the first space to facilitate air convection
Implementation Method 2
both are provided with a filtration screen
Data Source
Figure 1~2
Figure 3~4
AI summary
A display module has therein a heat dissipater, an installation frame, a LCD plate, an optical membrane, a diffusion plate and a light board respectively and sequentially received inside the installation frame, a first space defined between the LCD panel and the optical membrane. A heat dissipater has a first inlet, a first outlet both of which are defined in the installation frame and form a first airway inside the first space and a screen respectively provided to the first inlet and the first outlet. The formation of the airway facilitates air convection inside the display module, which helps dissipate heat generated from the operation of the display module.