Electronic Device Display Adhesive Marking and Escape Groove
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Solution Overview
Problem
In the assembly of electronic devices, the application of adhesive solutions often results in misalignment due to manufacturing tolerances, leading to poor bonding quality and potential water leakage, as the adhesive may overflow or be insufficient between the housing and display.
Innovation Solution
The electronic device design incorporates a case with a first and second plate, a side member, a display with a window, and features like marking portions and escape grooves on the seating surfaces to ensure accurate adhesive application at a reference position, preventing overflow and ensuring a waterproof structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive solution is applied using a dispensing device, then bonding between housing and display is achieved, but manufacturing tolerance accumulation causes misalignment leading to adhesive overflow or insufficient bonding
Solution Approach 1:
The patent introduces marking portions on the housing before adhesive application. These markings serve as preliminary guides that enable the dispensing device to accurately locate the application position, compensating for manufacturing tolerance accumulation and ensuring precise adhesive placement
Solution Approach 2:
The marking portions act as an intermediary element between the housing and the dispensing device. They provide a reference framework that mediates the positioning process, allowing the dispensing device to accurately identify the adhesive application position despite variations in housing manufacturing tolerances
2Ease of manufacture
If adhesive solution is applied at incorrect position, then bonding process is completed, but adhesive overflows causing poor appearance or damaging internal components
Solution Approach 1:
The escape groove is designed in advance as a preventive measure against adhesive overflow. By providing a designated escape path before overflow occurs, the system prevents adhesive from damaging the appearance or internal components while maintaining ease of manufacture
3Strength
If pressure is applied to couple housing and display, then bonding is strengthened, but adhesive flows out causing insufficient adhesive between components
Solution Approach 1:
The escape groove converts the harmful effect of adhesive overflow during pressing into a beneficial feature. Adhesive that would otherwise be lost or cause defects is redirected into the escape groove, which is designed to contain or channel this excess adhesive, thereby maintaining bonding strength while preventing adhesive loss and defects
Data Source
AI summary
According to various embodiments of the present invention, an electronic device can comprise: a case comprising a first plate oriented in the first direction, a second plate oriented in the second direction opposite to the first direction, and a side member surrounding at least a part of the space between the first and second plates; a display which comprises a window and which is disposed on the first plate of the case; an adhesive material for bonding the display to the case; a first loading surface of the case on which at least a part of the display is loaded; a second loading surface of the case to which the window is attached; at least one marking part formed on the first loading surface; and at least one escape groove formed on the second loading surface. Other additional embodiments are possible.