OLED Display Heat Dissipation Layer Integration
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Solution Overview
Problem
OLED displays face deterioration due to heat-generated internal temperatures, which reduce their lifespan and image quality, and existing heat dissipation methods increase the display's thickness and hinder efficient heat transfer.
Innovation Solution
A display apparatus with a heat dissipating layer made of thermally conductive materials like graphite, alumina, silver, or copper, positioned between the display panel and the sealing substrate, coupled by adhesion layers, to efficiently dissipate heat and prevent organic emission layer deterioration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heat dissipation structures are added to OLED displays, then heat dissipation efficiency is improved, but device thickness increases
Solution Approach 1:
The patent combines the heat dissipation function with the existing sealing substrate structure. The sealing substrate is designed to serve dual purposes: sealing the OLED display and dissipating heat. By integrating the heat dissipation layer with the sealing substrate rather than adding separate heat dissipation components, the patent achieves effective heat dissipation without increasing overall device thickness.
Solution Approach 2:
The sealing substrate is given multiple functions: it provides sealing protection for the OLED display and simultaneously acts as a heat dissipation component. This multi-functional design eliminates the need for separate heat dissipation structures, thereby maintaining thin profile while achieving effective thermal management.
2Temperature
If heat dissipation layers are positioned close to the display panel, then heat transfer efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
The patent merges the heat dissipation layer with the sealing substrate into a single integrated component. This combination simplifies the manufacturing process by reducing the number of separate layers and assembly steps required, while maintaining close proximity to the display panel for efficient heat transfer.
Solution Approach 2:
The patent introduces adhesion layers as intermediary components between the display panel and heat dissipation layer, and between the heat dissipation layer and sealing substrate. These adhesion layers facilitate proper bonding and thermal contact while maintaining a streamlined structure that does not significantly increase manufacturing complexity.
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 heat-related deterioration of the organic emission layer, maintaining image quality and extending the OLED display's lifespan without increasing the display's thickness.
Implementation Method 1
a heat dissipating layer which is between the display panel and the sealing substrate and is configured to dissipate heat generated from the display panel
Implementation Method 2
a first adhesion layer which is between the heat dissipating layer and the display panel and couples the heat dissipating layer and the display panel to each other
Data Source
AI summary
A display apparatus includes: a substrate; a display panel on the substrate; and a sealing substrate opposite to the display panel. The display apparatus includes further includes a heat dissipating layer which is between the display panel and the sealing substrate and dissipates heat generated from the display panel; and a sealing portion which is between the substrate and the sealing substrate and surrounds the display panel.