Flexible IC Assembly Heat Dissipation for Compact Displays
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Solution Overview
Problem
Modern display devices with compact housings face challenges in cooling due to limited space, leading to potential overheating and damage of integrated circuit (IC) components, especially with high data transmission rates generating significant heat.
Innovation Solution
An integrated circuit assembly with a flexible substrate and multiple thermally conductive layers, including a mesh structure, is used to dissipate heat effectively, allowing the assembly to be flexed for fitting within tight spaces without damaging mechanical or electrical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If components are positioned closely together in compact housing, then display device profile is reduced, but heat dissipation becomes insufficient leading to overheating
Solution Approach 1:
The patent employs flexible thermally conductive layers (including mesh structures) that can be conformally applied to IC chips and folded to fit compact housing spaces. These flexible thermal management components maintain effective thermal contact while adapting to limited space configurations, enabling heat dissipation in ultra-slim display devices without requiring traditional rigid heat sink structures.
2Productivity
If high data transmission rates are used, then image quality is improved, but heat generation increases causing potential damage to IC components
Solution Approach 1:
The patent replaces traditional mechanical thermal management approaches with flexible thermally conductive material layers that directly interface with IC chips. These flexible thermal layers provide efficient heat conduction pathways without requiring bulky mechanical heat sink structures, enabling effective thermal management for high-speed data transmission applications in space-constrained environments.
3Temperature
If rigid heat sinks are used for cooling, then heat dissipation is improved, but the assembly cannot be flexed to fit tight spaces
Solution Approach 1:
The patent substitutes rigid heat sink structures with flexible thermally conductive layers that can be conformally applied to IC chips and folded to fit tight housing spaces. The flexible thermal management solution maintains effective thermal contact through material compliance while enabling the assembly to be flexed into compact configurations without damaging mechanical or electrical connections.
4Adaptability or versatility
If the IC assembly is flexed to fit within housing, then adaptability is improved, but mechanical and electrical connections may be damaged
Solution Approach 1:
The patent employs flexible substrates and thermally conductive layers that are specifically designed to accommodate bending and folding without compromising structural integrity. These flexible components maintain mechanical and electrical connection reliability even when the IC assembly is flexed to fit within compact housing spaces, eliminating the need for rigid structures that would prevent adaptation to tight configurations.
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 spreads and dissipates heat generated by IC chips, preventing damage and ensuring reliable operation even at high data transmission rates, while maintaining flexibility to fit within the slim profiles of modern display devices.
Implementation Method 1
a first flexible thermally conductive layer on the flexible substrate; and an IC chip on the flexible substrate and thermally coupled to the first flexible thermally conductive layer
Data Source
AI summary
According to some embodiments of the present invention, a display device includes: a display panel; and an integrated circuit (IC) assembly coupled to the display panel, the IC assembly comprising: a flexible substrate; a first flexible thermally conductive layer on the flexible substrate; and an IC chip on the flexible substrate and thermally coupled to the first flexible thermally conductive layer.


