Foam Dam Member Absorbs Bonding Resin in Display Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices face challenges in preventing the overflow of bonding resin and ensuring effective protection of circuit areas from external impacts, leading to potential image distortion and damage.
Innovation Solution
A display device design incorporating a dam member with a foam element that absorbs the bonding resin, preventing it from flowing into the circuit area and enhancing impact resistance, combined with a bonding member made of photocurable resin for secure attachment to the window and display module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a bonding member is used to bond the display module and window together, then the display module is securely attached to the window, but the bonding resin may overflow into the circuit area causing image distortion
Solution Approach 1:
The dam member is installed before bonding the display module to the window, creating a pre-established barrier that prevents bonding resin from flowing into the circuit area during the bonding process. This preliminary protective measure ensures that even if excess resin is applied, it cannot cause image distortion or contaminate the circuit area.
Solution Approach 2:
The boundary between the display area and circuit area is segmented by the dam member, which physically divides the bonding space into a safe bonding region and a protected circuit region. This segmentation allows the bonding resin to be contained within the display area while the circuit area remains isolated and protected from contamination.
2Device complexity
If the circuit area is exposed without protection, then the structure remains simple, but the circuit area is vulnerable to external impacts and damage
Solution Approach 1:
The dam member serves multiple functions simultaneously: it acts as a barrier to prevent bonding resin overflow during assembly, and it serves as a protective shield for the circuit area against external impacts during operation. This multi-functionality adds protection without significantly complicating the overall device structure.
3Manufacturing precision
If the dam member is placed along the boundary between display area and circuit area, then the circuit area is protected from resin overflow, but the dam member may interfere with connecting members
Solution Approach 1:
The dam member is strategically positioned only at specific locations where resin overflow is most likely to occur, rather than creating a complete barrier across the entire boundary. This localized placement provides effective circuit area protection while leaving sufficient space for connecting members to access and bond to the display module without interference.
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 prevents resin overflow and enhances the impact resistance of the display device by using a foam element in the dam member to absorb excess resin, ensuring the circuit area remains protected and the image remains undistorted.
Implementation Method 1
the dam member includes a foam element that absorbs at least a portion of the bonding member
Implementation Method 2
The bonding member may include a photocurable resin... Curing the bonding member may include irradiating ultraviolet light to the bonding member
Data Source
AI summary
A display device and a method of manufacturing the same, the display device including a display module including a display area and a circuit area; a window that faces the display module; a bonding member between the display area of the display module and the window, the bonding member bonding the display module and the window together; and a dam member along a boundary between the display area and the circuit area, the dam member separating the bonding member and the circuit area, wherein the dam member includes a foam element that absorbs at least a portion of the bonding member.