Flexible Display Cover Member for Circuit Board Protection
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Solution Overview
Problem
Flexible circuit boards in electronic devices with flexible display modules often develop uneven surfaces due to bending, leading to potential damage of circuit components from physical contact with internal structures.
Innovation Solution
A flexible display module design featuring a cover member with adhesion portions extending from its ends, which covers the rear surface of the flexible circuit board to prevent uneven surfaces and protect circuit components, while a cover window with a curved design reduces bezel width and provides external protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the flexible circuit board is bent to accommodate the flexible display module, then the bezel width is reduced, but uneven surface portions are generated on the flexible circuit board
Solution Approach 1:
A cover member is introduced as an intermediary component between the flexible circuit board and the housing. This cover member has a curved surface that matches the bent shape of the flexible circuit board, thereby preventing direct contact between the uneven circuit board surface and the housing structures. The cover member acts as a mediator that accommodates the shape change while protecting the circuit board.
Solution Approach 2:
The cover member is designed in advance with a curved surface profile that anticipates and compensates for the bending deformation of the flexible circuit board. By pre-forming the cover member with the appropriate curvature, the uneven surface portions are prevented from causing damage before they can contact any structures.
2Length of moving object
If the flexible circuit board is bent, then the bezel width is reduced, but circuit components may be damaged due to physical contact with structures
Solution Approach 1:
The cover member serves as a protective intermediary that covers the bent flexible circuit board. It prevents direct physical contact between the circuit components and the housing structures, thereby protecting the reliability of the circuit components while allowing the bending configuration for reduced bezel width.
Solution Approach 2:
The cover member is installed beforehand to provide protective coverage over the flexible circuit board. This pre-protection ensures that when the circuit board bends and creates uneven surface portions, the circuit components are already shielded from potential damage.
3Reliability
If a cover member is added to protect the flexible circuit board, then circuit components are protected, but device complexity increases
Solution Approach 1:
The cover member is designed to serve multiple functions simultaneously: it protects the flexible circuit board from damage, provides a smooth external surface, and can also serve as a mounting structure for other components. By combining multiple functions into a single component, the increase in device complexity is minimized while achieving comprehensive protection.
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 uneven surface formation on the flexible circuit board, safeguards circuit components, and enhances the structural integrity and aesthetics of the electronic device by minimizing bezel width and providing robust protection against external shocks.
Implementation Method 1
a plurality of adhesion portions attached to the rear surface of the flexible display panel, each of the plurality of adhesion portions extending from a corresponding one of the plurality of ends of the cover body portion
Data Source
AI summary
A flexible display module and an electronic device comprising the same are disclosed, wherein the flexible display module covers uneven surface portions of a flexible circuit board, and protecting circuit components mounted on the flexible circuit board. The flexible display module comprises a flexible display panel including a display portion and a display pad portion disposed on a flexible substrate, a flexible circuit board connected with the display pad portion and arranged in a rear surface of the flexible display panel, and a cover member attached to the rear surface of the flexible display panel and configured to cover uneven surface portions of the flexible circuit board, wherein the cover member includes a cover body portion overlapped with the flexible circuit board, and an adhesion portion connected with both sides of the cover body portion and attached to the rear surface of the flexible display panel.