Rigid Membrane Dispels FPC Resilience Force
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Solution Overview
Problem
Foldable display products face issues with secondary display panels due to the structural design limitations, where the Flexible Printed Circuit (FPC) needs to be bent for installation, leading to rebound and pressure on the secondary display panel, causing backlog press marks and affecting the display effect.
Innovation Solution
A display apparatus is designed with a first display panel, a first flexible circuit board with a bending part, and a rigid membrane located between the display panel and the bending part. The rigid membrane supports the bending part and disperses the resilience force, preventing press marks on the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the FPC is bent for installation on the secondary display panel, then the FPC can be installed in foldable display products, but the bending part of the FPC rebounds and squeezes the secondary display panel, causing backlog press marks and affecting display quality
Solution Approach 1:
A buffer component is introduced as an intermediary element positioned between the FPC bending part and the secondary display panel. This buffer absorbs the rebound force from the bent FPC, preventing direct contact and pressure on the display panel, thereby eliminating press marks while maintaining the bent configuration necessary for installation.
Solution Approach 2:
The buffer component provides preemptive cushioning by being positioned in advance between the FPC bending part and the secondary display panel. It prepares the interface to absorb potential rebound forces before they can damage the display panel, ensuring protection is already in place during the FPC installation and operation.
2Adaptability or versatility
If the FPC bending part is allowed to rebound freely, then the FPC maintains its flexibility and electrical connection, but the resilience force generates excessive pressure on the secondary display panel
Solution Approach 1:
The buffer acts as a mediator that allows the FPC to maintain its bent, flexible configuration for electrical connection while intercepting and absorbing the resilience force before it can be transmitted to the secondary display panel, thus decoupling the FPC's flexibility from the harmful force it generates.
Solution Approach 2:
The buffer component converts the harmful rebound force generated by the FPC into a beneficial absorbed energy state. Instead of allowing the resilience force to damage the display panel, the buffer absorbs this force, transforming a potentially harmful mechanical stress into a controlled energy dissipation that protects the display system.
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 disperses the resilient force generated by the bending part, preventing press marks on the display panel and improving the display effect by reducing the likelihood of damage from excessive force during installation.
Implementation Method 1
the bending part connecting the first part and the second part... the rigid membrane supports the bending part, and a rigidity of the rigid membrane is greater than that of the first display panel, the rigid membrane is used to disperse a resilience force generated by the bending part
Data Source
AI summary
A display apparatus, comprising a first display panel, a first flexible circuit board, and a rigid membrane, wherein the first flexible circuit board is arranged on the back side of the first display panel; the first flexible circuit board comprises a first portion, a second portion, and a bending portion for connecting the first portion and the second portion; the first portion is electrically connected to the first display panel, and the second portion is located on the side of the first portion away from the first display panel; and the rigid membrane is located between the back side of the first display panel (101) and the bending portion, the rigid membrane supports the bending portion, the rigidity of the rigid membrane is greater than the rigidity of the first display panel (101), and the rigid membrane is used for dispersing a resilience force generated by the bending portion.