Display Adhesive Overlap Structure Against Water and Particle Ingress
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Solution Overview
Problem
Existing display devices are susceptible to foreign substances and water entering through gaps between adhesive materials, affecting their stability and reliability.
Innovation Solution
The implementation of protruding portions on adhesive materials to overlap and cover gaps between adhesive layers, preventing foreign substances and water from entering the display device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If adhesive materials are attached end-to-end in a segmented manner, then the adhesive coverage is sufficient for large-size display devices, but gaps between adhesive materials allow foreign substances and water to enter
Solution Approach 1:
The adhesive material is extended from a linear segmented arrangement into a two-dimensional configuration with a protruding portion that overlaps onto the backplane. This dimensional change creates an overlapping region that blocks gaps between adhesive segments, preventing foreign substances and water from entering through the gaps while maintaining sufficient adhesive coverage for large-size display devices.
2Ease of manufacture
If adhesive materials are attached end-to-end in a segmented manner, then the manufacturing process is simple, but gaps between adhesive materials affect device stability
Solution Approach 1:
The adhesive material is divided into two functional segments: a base portion that provides the primary bonding function and a protruding portion that provides the sealing function. This segmentation allows each part to perform its specific function effectively - the base portion ensures strong adhesion while the protruding portion blocks gaps to prevent foreign substance entry, thereby maintaining device stability without complicating the manufacturing process.
3Reliability
If protruding portion overlaps the second adhesive material, then foreign substances are prevented from entering, but the adhesive structure becomes more complex
Solution Approach 1:
The adhesive material is designed to perform multiple functions simultaneously: the base portion provides bonding between the panel and backplane, while the protruding portion provides sealing by overlapping onto the backplane to block gaps. This multi-functionality allows a single adhesive component to achieve both adhesion and protection against foreign substances, avoiding the need for separate sealing structures and thus not significantly increasing device complexity.
Data Source
AI summary
A display device is provided, including a backlight module, a panel, a first adhesive material, and a second adhesive material. The backlight module includes a backplane. The panel is disposed on the backplane and includes a display area. The first adhesive material is disposed between the backplane and the panel, and the first adhesive material has a protruding portion adjacent to the display area. The second adhesive material is disposed between the backplane and the panel. The protruding portion overlaps the second adhesive material.