Display Panel Heat Radiation Sheet with Layered Protection
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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 collectively achieving effective heat radiation.
Solution Approach 2:
The heat radiation sheet employs composite material structure combining graphite particles dispersed in a resin matrix within the heat radiation layer, and multiple protective layers made of different materials (PET, PVA, or PU) with varying properties. This composite approach enables simultaneous achievement of thermal conductivity, flexibility, adhesion, and protective functions.
2Temperature
If openings are defined in the lower protective layer for heat dissipation, then heat radiation efficiency is improved, but manufacturing precision requirements increase
Solution Approach 1:
The lower protective layer features openings strategically positioned in specific regions where heat dissipation is most critical, rather than uniform distribution throughout. The openings have controlled dimensions (e.g., 0.1-1.0 mm in length) and patterns that optimize heat radiation while accommodating manufacturing tolerances. This localized approach enhances heat dissipation efficiency without requiring extreme manufacturing precision across the entire sheet.
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, maintaining device performance and reliability.
Implementation Method 1
a heat radiation sheet to radiate heat generated by the display panel to an outside
Implementation Method 2
The heat radiation layer may include graphite
Implementation Method 3
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.