Thermal Management via Temperature-Responsive Elastic Body
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Solution Overview
Problem
High-brightness display panels face challenges in heat dissipation due to high temperatures from LED lamps, leading to poor performance, and in extremely cold environments, abnormal working temperatures cause color shifts and reduced LED lamp lifespan.
Innovation Solution
A component comprising a first elastic body and a heat dissipation apparatus that moves based on temperature thresholds, using a memory liquid crystal elastic body to shrink and move closer to the heat source for dissipation and soften to move away for insulation, optionally with a hydrogel for additional heat management, and a negative thermal expansion material for further temperature regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If LED lamps operate at high power to emit high-brightness light, then illumination intensity is improved, but temperature rises excessively causing poor heat dissipation and degraded display performance
Solution Approach 1:
The heat dissipation apparatus is designed to dynamically adjust its position based on temperature conditions. When temperature exceeds a threshold, the elastic body contracts and drives the heat dissipation apparatus to move closer to the LED lamps for active heat dissipation. When temperature is normal, the apparatus moves away to avoid excessive cooling, thus adaptively managing heat while maintaining display performance.
Solution Approach 2:
A heat dissipation apparatus is introduced as an intermediary component between the LED lamps and the surrounding environment. This apparatus includes a heat dissipation component that can be positioned close to the heat source when needed, facilitated by an elastic body that responds to temperature changes, thereby mediating heat transfer in a controlled manner.
2Temperature
If the heat dissipation apparatus remains close to LED lamps continuously, then heat dissipation is improved, but in extremely cold environments the temperature becomes overly low causing color shift and reduced LED lifespan
Solution Approach 1:
The system dynamically adjusts the distance between the heat dissipation apparatus and LED lamps based on real-time temperature conditions. The elastic body undergoes reversible deformation: contracting when hot to bring the heat dissipation apparatus close, and expanding when cold to move it away, thus preventing both overheating and excessive cooling that would harm LED lifespan.
Solution Approach 2:
The position parameter of the heat dissipation apparatus is changed in response to temperature parameter variations. By monitoring temperature and adjusting the apparatus position accordingly, the system optimizes heat management across different environmental conditions, ensuring reliable LED operation without color shift or premature failure.
3Measurement precision
If a complex control system with sensors and actuators is used to manage heat dissipation, then temperature control precision is improved, but device complexity and power consumption increase
Solution Approach 1:
The heat dissipation system is designed to be self-regulating through the temperature-responsive elastic body that automatically changes its contraction state based on ambient temperature. This passive response mechanism eliminates the need for external sensors, control circuits, and power sources, achieving simple yet effective temperature management without adding system complexity.
Solution Approach 2:
The patent replaces complex electronic control systems with a passive mechanical-thermal response mechanism. The elastic body's phase transition or thermal expansion/contraction properties directly respond to temperature changes, mechanically driving the heat dissipation apparatus to the appropriate position without requiring electronic sensing or actuation 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
Achieves automatic heat dissipation and insulation without electrical power consumption, maintaining display performance and extending LED lamp lifespan while being cost-effective and eco-friendly.
Implementation Method 1
when a temperature is higher than a first temperature threshold, the first elastic body drives the heat dissipation apparatus to move toward a direction close to a heat supplier; and when a temperature is lower than the first temperature threshold, the first elastic body drives the heat dissipation apparatus to move toward a direction away from the heat supplier
Implementation Method 2
when a temperature is higher than a second temperature threshold, moisture of the hydrogel is released to dissipate heat
Implementation Method 3
a negative thermal expansion (NTE) material... when a temperature is lower than a third temperature threshold, the at least one second elastic body drives the heat dissipation apparatus to move toward a direction away from the heat supplier
Data Source
AI summary
A component for dissipating heat of a device, a backlight module, and a display panel are disclosed. The component for dissipating heat of the device includes a first elastic body and a heat dissipation apparatus, and a first temperature threshold is set. The component for dissipating heat of the device dissipates heat of the device and ensures heat insulation of the device by a physical method, and does not include a sensor or a logic circuit. Therefore, it has low cost and eco-friendly applications, and does not consume electrical power.