Automotive Display Heat Dissipation Pad and Insulating Adhesive
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Solution Overview
Problem
Display devices used in automobiles, such as those in dashboards, face significant heat dissipation challenges due to high temperatures, leading to reduced performance and lifespan.
Innovation Solution
A display device design incorporating a heat dissipation pad electrically connected to sub-pixels, a heat dissipation sheet, and an insulating heat dissipation adhesive layer to effectively dissipate heat generated by the conductive lines, thereby mitigating internal temperature increases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display device is operated in high temperature environment (80-90°C), then the device can function in automobile conditions, but the internal temperature rises causing deterioration of display characteristics and reduced lifespan
Solution Approach 1:
The patent converts the harmful heat generated by sub-pixels into a manageable thermal flow by introducing dedicated heat dissipation pads that capture and redirect the heat away from sensitive display components. This transforms the harmful thermal energy into a controlled dissipation process, allowing the display to maintain reliability in high-temperature automobile environments.
Solution Approach 2:
The patent introduces heat dissipation pads as intermediary thermal management components between the heat-generating sub-pixels and the heat dissipation sheet. These pads act as thermal mediators that facilitate heat transfer while isolating sensitive display elements from direct thermal exposure, thereby maintaining display characteristics stability.
2Temperature
If heat dissipation structures are added to reduce internal temperature, then heat dissipation performance improves, but device complexity increases
Solution Approach 1:
The patent merges multiple functions into the heat dissipation pad structure: it serves as both a thermal management component and an electrical connection element. The pad is electrically connected to sub-pixels while simultaneously functioning as a heat dissipation pathway, thereby reducing the need for separate components and simplifying the overall device structure.
Solution Approach 2:
The heat dissipation pad is designed with multi-functionality, serving both as an electrical interconnection element and a thermal management component. This universal design allows a single structure to fulfill multiple roles, avoiding additional complexity that would arise from separate dedicated heat dissipation elements.
3Reliability
If conductive lines are used to electrically connect sub-pixels, then electrical connectivity is achieved, but heat is generated and transferred to sensitive components
Solution Approach 1:
The patent segments the thermal management function from the electrical connection function by introducing separate heat dissipation pads for each sub-pixel. This segmentation allows heat to be captured and directed independently at each heat source, preventing heat accumulation and transfer to sensitive components while maintaining electrical connectivity.
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 reduces the deterioration of display device characteristics and extends its lifespan by efficiently dissipating heat generated within the device.
Implementation Method 1
an insulating heat dissipation adhesive layer between the heat dissipation sheet and the heat dissipation pad to adhere the heat dissipation sheet and the heat dissipation pad
Data Source
AI summary
A display device includes: a display panel including sub-pixels and a heat dissipation pad electrically connected to at least one of the sub-pixels; a heat dissipation sheet on the heat dissipation pad; and an insulating heat dissipation adhesive layer between the heat dissipation sheet and the heat dissipation pad to adhere the heat dissipation sheet and the heat dissipation pad.