Protective Cover for Display Bending Area Assembly
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Solution Overview
Problem
Existing display devices face challenges in protecting the bending area during assembly, leading to defects from external impacts and foreign substances, which affects manufacturing efficiency and costs.
Innovation Solution
A display device with a protective cover and a coupling structure that includes adhesive members with varying adhesive forces, attaching the display module to the protective cover, which covers the bending area and remains attached when detached, ensuring the display module is securely coupled to the electronic device components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the display module is transferred without a protective cover, then the manufacturing process is simpler and faster, but the bending area is exposed to external impacts and foreign substances causing defects
Solution Approach 1:
A protective cover is provided on the rear surface of the display module before assembly, covering the bending area in advance to prevent external impacts and foreign substances from causing defects during handling and assembly processes
Solution Approach 2:
The protective cover is designed as a separate component that can be independently attached to the display module, allowing the protection function to be added without fundamentally changing the display module structure itself
2Manufacturing precision
If a protective cover is added to cover the bending area, then defects during assembly are reduced, but the device structure becomes more complex
Solution Approach 1:
The protective cover is integrated with the coupling structure that connects the display module to the electronic device, combining the protection function with the assembly function into a single integrated solution
Solution Approach 2:
The coupling structure serves multiple functions: it connects the display module to the electronic device, provides protection for the bending area, and includes adhesive members with different adhesive forces for secure attachment
3Stability of the object's composition
If adhesive members with strong adhesive force are used to attach the protective cover, then the protective cover remains attached during detachment, but the adhesive force may damage the display module
Solution Approach 1:
Different adhesive members are used at different locations: a first adhesive member with strong adhesive force attaches the protective cover to the display module to ensure stability, while a second adhesive member with weak adhesive force attaches the coupling structure to the protective cover to allow easy detachment without damaging the display module
Solution Approach 2:
The adhesive force parameter is varied across different adhesive members - the first adhesive member has high adhesive force for secure attachment, while the second adhesive member has low adhesive force for easy removal, optimizing both attachment stability and detachability
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 reduces defects during assembly by shielding the bending area and allows for efficient manufacturing by ensuring the display module is securely attached to the electronic device components, thereby improving manufacturing efficiency and reducing costs.
Implementation Method 1
The coupling structure may include a first adhesive member. The first adhesive member may include a first part overlapped with the protective cover and a second part extending from the first part and protruding outward from the window member when viewed in a plan view.
Implementation Method 2
The first part of the first adhesive member may include a base layer and first and second adhesive layers respectively on both surfaces of the base layer (e.g., front and rear surfaces of the base layer)
Data Source
Figure 1A
Figure 1B
Figure 2
AI summary
A display device includes a window member, a display module, a protective cover, and a coupling structure. The display module includes a non-bending area on a rear surface of the window member and a bending area bent from the non-bending area. The protective cover is on a rear surface of the display module to cover the bending area of the display module. The coupling structure couples the display module to the protective cover. The display module is coupled to other components of an electronic device after the protective cover is detached from the display module.