Light-Blocking Layer on Metallic Support for Display Visibility
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Solution Overview
Problem
Electronic devices face challenges in achieving improved impact resistance and preventing external light reflection, particularly in designs with metallic components that can cause glare and are prone to damage from external impacts.
Innovation Solution
Incorporating a light-blocking layer with a black dye or pigment, combined with a polymer resin and silica particles, directly coated or attached to a metallic supporting member, which also includes a cross-linking additive for enhanced adhesion and durability, thereby reducing surface roughness and improving impact resistance while minimizing light reflection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a metallic supporting member is used, then structural strength and rigidity are improved, but external light reflection increases causing visibility issues
Solution Approach 1:
The patent applies a light-blocking layer containing black pigment or dye on the metallic supporting member to convert the harmful light reflection property into a beneficial light absorption property, thereby eliminating glare while preserving the structural strength of the metal plate
2Object-generated harmful factors
If a light-blocking layer is added to prevent light reflection, then visibility is improved, but device complexity increases
Solution Approach 1:
The patent creates a composite structure by combining the metallic supporting member with a light-blocking layer containing polymer resin and black pigment, achieving both structural strength and light reflection prevention in an integrated manner that minimizes additional complexity
3Ease of manufacture
If the light-blocking layer is directly coated on the supporting member, then manufacturing simplicity is improved, but adhesion strength may be insufficient
Solution Approach 1:
The patent modifies the chemical parameters of the light-blocking layer by incorporating specific polymer resins, curing agents, and silane coupling agents that enhance chemical bonding to the metallic supporting member, thereby achieving strong adhesion while maintaining direct coating simplicity
4Object-generated harmful factors
If silica particles are added to the light-blocking layer, then surface roughness is reduced improving visibility, but manufacturing precision requirements increase
Solution Approach 1:
The patent incorporates silica particles with specifically controlled size ranges (0.1-10 μm) into the light-blocking layer to locally modify surface properties, achieving reduced surface roughness and improved visibility while managing manufacturing precision through defined particle specifications
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 enhances the impact resistance of electronic devices and reduces external light reflection, improving the durability and visibility of the device by ensuring strong adhesion and maintaining a smooth surface quality.
Implementation Method 1
the light-blocking layer may include at least one of a black dye and a black pigment
Implementation Method 2
the light-blocking layer may include at least one of a polymer resin, a curing agent, a silane coupling agent, and an amorphous silica particle
Data Source
AI summary
An electronic device may include a window, a display panel disposed below the window, a supporting member disposed below the display panel, and a light-blocking layer disposed on the supporting member. The light-blocking layer may include a light-blocking material, and the light-blocking layer may be directly disposed on the supporting member or may be directly attached to the supporting member by a light-blocking adhesive layer. Thus, the electronic device has an improved impact resistance property and may prevent reflection of an external light.