Flexible Display Shield Member Shock Absorption
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Solution Overview
Problem
Electronic devices with flexible display modules are prone to damage from physical contact and external shocks, as well as static electricity, which can harm the driving integrated circuit and flexible display panel.
Innovation Solution
A flexible display module is designed with a shield member that includes a shock-absorbing portion to protect the driving integrated circuit and a conductive heat dissipating portion to prevent damage from physical contact and static electricity, while also incorporating a heat insulation tape to manage temperature and prevent picture quality deterioration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the driving integrated circuit is exposed at the rear surface of the flexible display panel, then the device structure is simple, but the driving integrated circuit is vulnerable to damage from physical contact, vibration, and external shock
Solution Approach 1:
A shock absorbing portion is provided at the rear surface of the flexible display panel, positioned to overlap with the driving integrated circuit. This cushioning structure is installed in advance to absorb and mitigate physical contact, vibration, and external shock before they can reach and damage the driving integrated circuit, thereby resolving the contradiction between structural simplicity and circuit protection.
Solution Approach 2:
The shield member acts as an intermediary protective layer between the external environment and the driving integrated circuit. It includes a shock absorbing portion that mediates the impact of physical contact and vibration, preventing direct transmission of harmful forces to the circuit while maintaining a relatively simple overall structure.
2Length of moving object
If the flexible display panel is made flexible to enable bending, then the bezel width is reduced, but the panel and driving circuit become more vulnerable to damage from external shock and static electricity
Solution Approach 1:
The shock absorbing portion is installed in advance at the rear surface to cushion and absorb external shock and static electricity before they can reach the flexible display panel and driving integrated circuit. This allows the panel to maintain its flexible bending capability for reduced bezel width while being protected against harmful factors.
Solution Approach 2:
The shield member with shock absorbing portion serves as an intermediary protective barrier between the flexible display panel and external harmful factors. It mediates the impact of external shock and static electricity, allowing the panel to remain flexible and thin while preventing direct exposure to damaging environmental factors.
3Device complexity
If the driving integrated circuit is mounted directly on the flexible display panel, then the device structure is compact, but the circuit is exposed to heat and temperature-related damage
Solution Approach 1:
The shield member acts as an intermediary thermal management layer between the driving integrated circuit and the flexible display panel. It includes heat dissipating structures that mediate heat transfer, preventing direct thermal coupling while maintaining a compact mounting structure.
Solution Approach 2:
The shield member modifies the thermal parameters of the mounting environment by providing heat dissipation pathways and thermal isolation. This changes the thermal field distribution around the driving integrated circuit, reducing peak temperatures and heat-related damage risks while maintaining structural compactness.
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 reduces the risk of damage to the driving integrated circuit and flexible display panel from vibrations, external shocks, and static electricity, while minimizing temperature-related issues, thereby enhancing the reliability and performance of the electronic device.
Implementation Method 1
a shield member configured to cover the display driving circuit portion at the rear surface of the flexible display panel and configured to have a shock absorbing portion overlapped with the driving integrated circuit
Implementation Method 2
a conductive heat dissipating portion combined with a rear surface of the flexible display panel
Data Source
AI summary
A flexible display module and an electronic device including the flexible display module are disclosed, flexible display panel including a display portion, a display pad portion and a panel bending portion between the display portion and the display pad portion; a display driving circuit portion disposed at a rear surface of the flexible display panel and configured to include a driving integrated circuit connected with the display pad portion; and a shield member configured to cover the display driving circuit portion at the rear surface of the flexible display panel and configured to have a shock absorbing portion overlapped with the driving integrated circuit.