Dynamic Thermal Management for Dual Display Passive Cooling
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Solution Overview
Problem
Dual display platform information handling systems face challenges in dynamic thermal management due to limited passive cooling capabilities, especially when operating with multiple display screens, as the orientation of the devices affects airflow and heat dissipation, leading to potential overheating and reduced battery life.
Innovation Solution
A dynamic thermal management system that monitors temperature and power consumption across multiple display platforms, adjusts cooling strategies based on orientation and application priorities, and implements power-saving measures such as dimming, reducing refresh rates, and relocating non-critical applications to secondary screens to maintain efficient cooling and extend battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple display screens are operated simultaneously, then information processing capability and user interface versatility are improved, but heat generation and power consumption increase
Solution Approach 1:
The system dynamically adjusts display refresh rates between 60Hz and 90Hz based on thermal conditions and content requirements. The thermal management system continuously monitors temperature and adapts display parameters in real-time to balance performance and thermal output, allowing the display to operate at higher refresh rates when cool and reducing to lower rates when thermal thresholds are approached.
Solution Approach 2:
The patent changes physical parameters of the display system including refresh rate (60Hz-90Hz), brightness levels, and panel orientation to control heat generation. By adjusting these parameters based on thermal feedback, the system can maintain versatile multi-display operation while preventing overheating through parameter optimization.
2Device complexity
If passive cooling is used instead of active cooling, then device complexity and power consumption are reduced, but thermal management capability is limited
Solution Approach 1:
The passive cooling system is segmented into multiple thermal zones with independent temperature sensors positioned at different locations within the device. This allows the system to identify specific hot spots and apply targeted thermal management strategies to different segments, improving overall cooling efficiency without adding active cooling components.
Solution Approach 2:
The patent introduces thermal interface materials and heat spreaders as intermediary elements between heat-generating components and the external environment. These intermediaries facilitate heat transfer from critical components to areas with better passive cooling performance, enhancing thermal management capability without requiring active cooling systems.
3Reliability
If display refresh rate is increased to improve visual quality, then user experience is enhanced, but power consumption and heat generation increase
Solution Approach 1:
The display refresh rate is dynamically adjusted based on real-time thermal conditions and content type. The system monitors temperature and automatically switches between 60Hz and 90Hz operation, maintaining high visual quality when thermal conditions permit while reducing power consumption and heat generation when approaching thermal limits.
Solution Approach 2:
The thermal management system takes preliminary action by predicting thermal buildup before it becomes problematic. Based on usage patterns and environmental conditions, the system proactively adjusts refresh rates and brightness levels to prevent excessive heat accumulation, maintaining visual quality while avoiding thermal throttling.
4Adaptability or versatility
If device operates in various orientations, then user convenience and display flexibility are improved, but airflow patterns and cooling efficiency vary unpredictably
Solution Approach 1:
The thermal management system dynamically adapts to different device orientations by continuously monitoring temperature sensors and adjusting cooling strategies accordingly. When the device is rotated to different orientations, the system identifies which thermal zones are most affected and adjusts display parameters and power distribution to maintain efficient passive cooling in the current orientation.
Solution Approach 2:
Different regions of the device are assigned different thermal management priorities based on their cooling efficiency in various orientations. The system identifies hot spots specific to each orientation and applies localized thermal management strategies, such as reducing refresh rates on displays positioned in poorly-cooled zones while maintaining performance in well-ventilated areas.
Data Source
AI summary
An information handling system includes a primary integrated display platform and a secondary integrated display platform attached via a hinge, and including a passive cooling system, a dynamic thermal management system, and a processor. The information handling system further includes an application window locator system for determining a location of a software application display window running on the information handling system on the primary integrated display platform or the secondary integrated display platform.