Flow Prevention Member for Adhesive Containment in Display Devices
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Solution Overview
Problem
Existing display devices face challenges in preventing the spreading or exposure of adhesives during the attachment of covers to display panels, which can compromise the reliability and manufacturing efficiency of the devices.
Innovation Solution
Incorporating a flow prevention member with an inner space to house the adhesive, positioned on either the display panel or cover, which includes a coupling member and position determination member to ensure accurate alignment and containment of the adhesive, thereby preventing its spread during attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an anti-friction coating is performed on the cover before coating with resin, then adhesive spreading is prevented, but manufacturing complexity and cost increase
Solution Approach 1:
A flow prevention member is introduced as an intermediary component between the adhesive and the cover surface. This member physically blocks adhesive flow without requiring chemical modifications to the cover surface, thereby preventing adhesive spreading while avoiding complex coating processes.
Solution Approach 2:
The flow prevention member is divided into multiple segments or portions that can be independently positioned and attached to different areas of the cover. This segmentation allows flexible adaptation to various adhesive application patterns and simplifies the manufacturing process by enabling modular assembly.
2Reliability
If adhesive is applied extensively to ensure full coverage, then bonding reliability improves, but adhesive exposure and spreading increase
Solution Approach 1:
The flow prevention member provides localized containment exactly where adhesive is applied, allowing adhesive to be applied generously for strong bonding while physically restricting its spread to predetermined areas. This creates local quality control over adhesive behavior without compromising overall bonding reliability.
Solution Approach 2:
The flow prevention member is attached to the cover in advance before adhesive application, establishing a physical barrier that preemptively prevents adhesive from spreading beyond desired boundaries. This preliminary anti-action ensures that even if excessive adhesive is applied, it cannot escape the contained area.
3Reliability
If flow prevention member is added to contain adhesive, then adhesive spreading is prevented, but device structure becomes more complex
Solution Approach 1:
The flow prevention member is designed as a thin film or flexible structure that can be easily attached to the cover surface. This thin-film approach provides effective adhesive containment while minimizing additional structural complexity and maintaining a sleek device appearance.
Solution Approach 2:
The flow prevention member serves multiple functions simultaneously: it contains adhesive spread, provides alignment references through markings, and can serve as part of the final device aesthetic. This multi-functionality reduces the need for separate components and simplifies overall device structure.
Data Source
AI summary
A display device and a method of manufacturing the same are provided. The display device includes: a display panel; a cover on the display panel; an adhesive on at least one of the cover or the display panel to attach the cover to the display panel; and a flow prevention member on at least one of the display panel or the cover, wherein the adhesive member is arranged at an inner space of the flow prevention member.