Protective Layer With Gradient Magnetic Particles For Display Panels
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Solution Overview
Problem
Existing electronic devices with display panels face challenges in combining protective functions such as impact absorption, heat dissipation, and electromagnetic shielding in a single layer, leading to increased complexity and thickness.
Innovation Solution
A protective layer is introduced beneath the display panel, composed of a base resin with dispersed magnetic particles, where the weight ratio of particles increases from the bottom to the top, incorporating heat dissipation, shielding, and support materials, and is manufactured using a magnetic force dispersion method to optimize layer formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple functional layers are stacked to provide impact protection, heat dissipation, and electromagnetic shielding, then protective functions are improved, but device complexity and thickness increase
Solution Approach 1:
The patent combines impact protection, heat dissipation, and electromagnetic shielding functions into a single protective layer. This layer includes a base resin with dispersed magnetic particles that provide both electromagnetic shielding and structural support for impact resistance, while heat dissipation materials are integrated into the same matrix, eliminating the need for separate functional layers
Solution Approach 2:
The protective layer is designed as a multi-functional component that simultaneously provides mechanical protection against impact, thermal management through heat dissipation, and electromagnetic interference shielding. The magnetic particles and heat dissipation materials dispersed in the base resin enable this layer to perform multiple protective functions that traditionally required separate layers
2Reliability
If multiple functional layers are stacked to provide comprehensive protection, then protective functions are improved, but device thickness increases
Solution Approach 1:
The patent merges multiple protective functions into a single integrated layer, reducing the overall device thickness. Instead of stacking separate layers for impact protection, heat dissipation, and electromagnetic shielding, all these functions are combined in one protective layer with a total thickness of 100-500 micrometers
Solution Approach 2:
The protective layer uses a composite material structure consisting of a base resin matrix with dispersed magnetic particles and heat dissipation materials. This composite approach allows multiple functions to be achieved within a single layer of reduced thickness, as the different materials work synergistically to provide comprehensive protection
3Ease of manufacture
If magnetic particles are uniformly distributed in the protective layer, then manufacturing simplicity is maintained, but heat dissipation and shielding effectiveness are reduced
Solution Approach 1:
The patent implements a non-uniform distribution of magnetic particles in the protective layer, with a higher concentration in the first portion (closer to the display panel) and a lower concentration in the second portion. This local variation in particle density optimizes both electromagnetic shielding effectiveness and heat dissipation performance in different regions of the layer
Solution Approach 2:
The patent changes the concentration parameter of magnetic particles throughout the protective layer thickness. By varying the particle density from the first portion to the second portion, the design optimizes the balance between electromagnetic shielding (which benefits from higher particle concentration) and heat dissipation (which requires adequate resin matrix for thermal pathways)
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
This solution simplifies the device structure by integrating multiple protective functions into a single layer, reducing thickness and enhancing manufacturing efficiency while improving impact resistance and heat management.
Implementation Method 1
manufactured using a magnetic force dispersion method to optimize layer formation
Implementation Method 2
effectively dissipates heat generated in the display panel to protect the display panel from the outside
Implementation Method 3
each of the plurality of magnetic particles may include at least one of a heat dissipation material, a support material, or a shielding material
Data Source
AI summary
An electronic device includes a display panel including a first area and a second area adjacent to the first area, an electronic module overlapping the first area and disposed below the display panel, and a protective layer overlapping the second area and disposed below the display panel. The protective layer includes a base resin and a plurality of magnetic particles dispersed in the base resin, and a ratio of a weight of the plurality of magnetic particles to a total weight of the protective layer gradually increases from a bottom surface of the protective layer to a top surface of the protective layer.