Multi-Resin Display Panel for Slim Bezel Strength
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Solution Overview
Problem
Display devices with bent portions for slim bezels are vulnerable to external shocks and require separate reinforcing materials for enhanced strength and heat dissipation.
Innovation Solution
A display device with a display panel, a first resin layer overlapping the side surface, and a second resin layer positioned on the rear surface overlapping the driving part, both made of different materials, along with an optional third resin layer for additional protection and heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the display panel is bent to implement a slim bezel, then the device achieves a thinner profile and improved aesthetics, but the bending portion becomes vulnerable to external shock and requires separate reinforcing materials
Solution Approach 1:
The resin layer is divided into multiple regions with different material compositions: a first region overlapping the bending portion uses a resin with lower Young's modulus (0.1-1 GPa) for flexibility, while a second region overlapping the driving part uses a resin with higher Young's modulus (1-10 GPa) for strength. This segmentation allows each region to perform its specific function optimally.
Solution Approach 2:
Different regions of the resin layer are assigned different material properties tailored to their specific functions. The bending portion receives a softer, more flexible resin composition, while the driving part receives a harder, stronger resin composition. This local differentiation resolves the contradiction by providing strength where needed without compromising the slim bezel design.
2Strength
If separate reinforcing materials are added to the bending portion, then the strength and shock resistance are improved, but the device complexity and manufacturing process increase
Solution Approach 1:
The reinforcing material is merged with the existing resin layer by forming an integrated multi-region resin structure. Instead of adding separate reinforcing components, the resin layer itself is designed with varying material compositions in different regions, combining the reinforcing function with the existing structural element and simplifying the overall device architecture.
Solution Approach 2:
The resin layer uses composite material structures with different polymer compositions in different regions. The first region uses a resin with lower Young's modulus for flexibility, while the second region uses a resin with higher Young's modulus for strength. This composite approach provides reinforcing properties without requiring separate reinforcing components.
3Ease of manufacture
If a single resin layer is used for the entire display panel, then the manufacturing process is simple, but the heat dissipation characteristics and localized strength are insufficient
Solution Approach 1:
The resin layer is segmented into multiple regions with different material compositions tailored to their specific thermal and mechanical requirements. The first region overlapping the bending portion uses a resin with lower Young's modulus for flexibility, while the second region overlapping the driving part uses a resin with higher Young's modulus for strength and heat dissipation.
Solution Approach 2:
Different regions of the resin layer are assigned different material properties tailored to their specific functions. The bending portion receives a softer, more flexible resin composition, while the driving part receives a harder, stronger resin composition with better heat dissipation properties, resolving the contradiction by providing localized optimization without significantly complicating 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 display device achieves improved strength and heat dissipation characteristics by utilizing resin layers with specific material properties in strategic locations, reducing the need for separate reinforcing materials and enhancing overall performance.
Implementation Method 1
the first resin layer and the second resin layer include different materials... the second resin layer may include a thermally conductive filler
Implementation Method 2
the second resin layer may include a conductive polymer resin... the second resin layer may include a polymer having an electrical conductivity of about 100 S/cm2 or more
Data Source
AI summary
A display device includes a display panel, and a first resin layer and a second resin layer located on a rear surface of the display panel, wherein the first resin layer is overlapping a side surface of the display panel, the second resin layer is overlapping the driving part of the display panel, and the first resin layer and the second resin layer include different materials.