Display Panel Heat Radiation Sheet with Openings and Protective Layers
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Solution Overview
Problem
Existing display devices face challenges in effectively managing heat dissipation, leading to potential defects and reduced performance.
Innovation Solution
A display device design incorporating a heat radiation sheet with a heat radiation layer, lower and upper protective layers, and defined openings in the lower protective layer, utilizing materials like graphite and synthetic resin films to enhance heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a heat radiation sheet is disposed under the display panel to radiate heat, then heat dissipation is improved, but the structure becomes more complex and manufacturing difficulty increases
Solution Approach 1:
The heat radiation sheet is divided into multiple functional layers: a heat radiation layer containing graphite particles for thermal conduction, a lower protective layer with openings for adhesive application and heat dissipation, and an upper protective layer for structural integrity. This segmentation allows each layer to perform its specific function optimally while maintaining overall heat dissipation effectiveness.
Solution Approach 2:
The lower protective layer acts as an intermediary between the heat radiation layer and the adhesive layer. It provides a structured interface with openings that facilitate controlled adhesive application while protecting the heat radiation layer and enabling efficient heat transfer to the adhesive and subsequently to the display panel.
2Temperature
If a heat radiation layer is added to improve heat dissipation, then thermal management is enhanced, but manufacturing precision requirements increase
Solution Approach 1:
The lower protective layer is pre-formed with openings at specific locations and patterns before the adhesive layer is applied. This preliminary structuring ensures that adhesive is applied only where needed, facilitating precise alignment and assembly while maintaining manufacturing efficiency and reducing the precision burden on subsequent assembly steps.
Solution Approach 2:
The lower protective layer features non-uniform openings distributed at different locations and densities. This local variation in opening pattern allows optimized adhesive application in different regions, accommodating varying thermal and mechanical requirements across the heat radiation sheet surface while simplifying overall manufacturing.
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 design reduces defect rates and improves heat dissipation efficiency, maintaining optimal device performance.
Implementation Method 1
a heat radiation sheet to radiate heat generated by the display panel to an outside
Implementation Method 2
an adhesive layer disposed between the synthetic resin film and the heat radiation layer
Data Source
AI summary
A display device includes a display panel and a heat radiation sheet disposed under the display panel, where a first region and a second region disposed outside the first region when viewed in a thickness direction thereof are defined in the heat radiation sheet. The heat radiation sheet includes a heat radiation layer disposed in the first region, a lower protective layer disposed under the heat radiation layer, where a plurality of openings is defined in the lower protective layer, and an upper protective layer disposed above the heat radiation layer and coupled to the lower protective layer in the second region.