Sealed Graphite Lower Sheet for Display Panel Heat Dissipation
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Solution Overview
Problem
Emissive display devices face damage due to excessive heat generated by light-emitting devices or driving chips, necessitating a solution to protect these components effectively.
Innovation Solution
A lower sheet is introduced beneath the display panel, comprising a heat radiation layer with graphite, resin layers, film layers, and a sealing layer to enhance heat dissipation and prevent vapor defects, ensuring reliable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a functional sheet with radiating or buffering function is attached to protect elements from excessive heat, then the reliability of display elements is improved, but the device structure becomes more complex and air pockets may form causing vapor defects
Solution Approach 1:
The lower sheet is divided into multiple functional layers: heat radiation layer (graphite), first and second resin layers (buffering), first and second film layers (protection), and sealing layer. This segmentation allows each layer to perform its specific function while collectively solving the heat protection problem without forming air pockets.
Solution Approach 2:
The lower sheet uses composite material structure combining graphite (heat radiation), resin materials (buffering and adhesion), and film materials (protection). This composite approach achieves effective heat management while eliminating air pockets through proper material selection and layer integration.
2Manufacturing precision
If multiple layers are stacked to eliminate air pockets and prevent vapor defects, then the manufacturing precision is improved, but the device complexity increases
Solution Approach 1:
The lower sheet is pre-formed with all necessary layers (heat radiation, resin, film, and sealing layers) stacked and bonded together before attachment to the display panel. This preliminary assembly ensures no air pockets remain in the structure when it is installed, achieving high manufacturing precision.
Solution Approach 2:
Multiple functional layers are merged into a single integrated lower sheet component. The heat radiation layer, resin layers, film layers, and sealing layer are combined into one unified structure that performs all necessary functions simultaneously, reducing the need for separate components.
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 radiates heat away from the display panel, preventing damage and increasing the reliability and quality of the display device by eliminating vapor defects.
Implementation Method 1
a heat radiation layer having a first side and a second side facing the first side
Implementation Method 2
The sealing layer directly contacts an entirety of the lateral sides of the heat radiation layer, and directly contacts at least a portion of lateral sides of the first resin layer and the second resin layer
Data Source
AI summary
A lower sheet disposed below a display panel includes a heat radiation layer having a first side and a second side facing the first side. A first film layer is disposed on the first side of the heat radiation layer. A second film layer is disposed on the second side of the heat radiation layer. A first resin layer is disposed between the heat radiation layer and the first film layer. A second resin layer is disposed between the heat radiation layer and the second film layer. A sealing layer is disposed on lateral sides of the heat radiation layer. The sealing layer directly contacts an entirety of the lateral sides of the heat radiation layer, and directly contacts at least a portion of lateral sides of the first resin layer and the second resin layer.