Display Thermal Management via Component Segmentation and Airflow
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Solution Overview
Problem
Advanced display devices generate excessive thermal energy, which can damage components and reduce performance, and their thin structures limit thermal dissipation materials, leading to issues like color non-uniformity in display modules and power limitations.
Innovation Solution
The strategic placement of heat-generating components between vent inlets and fan assemblies, with vents arranged on opposing sidewalls to facilitate convective cooling, allowing ambient air to flow over these components before being heated and expelled, optimizing thermal performance and reducing material thickness for lighter devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If upgraded features and components are added to improve display resolution, graphics, and brightness, then processing speed and performance are improved, but thermal energy generation increases causing damage to components and reduced performance
Solution Approach 1:
The patent extracts the heat-generating components (power supply unit, backlight unit) from the main display housing and relocates them to a separate enclosure. This physical separation removes the harmful thermal energy away from heat-sensitive components like the LCD module, allowing high-performance upgraded features to operate without thermal damage
Solution Approach 2:
The patent introduces a fan assembly as an intermediary cooling mechanism positioned between the heat-generating components and the display module. The fan actively removes thermal energy from the power supply unit and backlight unit, mediating the heat transfer to prevent thermal damage to other components while maintaining high processing speeds
2Weight of moving object
If the display housing is made thinner to reduce weight and improve portability, then device portability is improved, but available material for thermal energy dissipation is reduced
Solution Approach 1:
The patent transitions from two-dimensional thin housing design to a three-dimensional thermal management solution by creating a separate enclosure for heat-generating components. This dimensional change allows adequate thermal dissipation space while maintaining a thin overall display profile, achieving both portability and effective heat removal
3Volume of moving object
If heat-generating components are placed close to the display module to reduce housing thickness, then device compactness is improved, but thermal damage to display components increases
Solution Approach 1:
The patent segments the display housing into two distinct enclosures: one for the display module and one for heat-generating components. This segmentation physically isolates the LCD module from thermal damage while maintaining overall device compactness, as each enclosure is optimized for its specific function
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
This configuration enhances thermal efficiency, allowing for more compact designs with improved cooling of heat-generating components, reducing the risk of thermal damage and maintaining performance while minimizing material usage.
Implementation Method 1
the fan assembly drives air into the housing through the vent inlet and causes the air to flow along the heat-generating component
Data Source
AI summary
This application relates to display devices and the layout/architecture of various internal components to enhance thermal energy management. A display device described herein may include one or more fan assemblies that drive ambient air into the display device to cool heat-generating components of the display device, and also to drive the ambient air, once heated through convectively cooling the heat-generating components, out of the display device. Further, the location of the heat-generating components is such that the heat-generating components upstream relative to the one or more fan assemblies. In this manner, the ambient air can pass over or through the heat-generating components prior to reaching the one or more fan assemblies. Additionally, heat-generating components, such as a backlit device and a power supply unit, are positioned relatively close to vent inlets in the display device. As a result, these heat-generating devices are immediately cooled with the ambient air.