Flexible Display Support Layer for Dual-Direction Folding Radii
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Solution Overview
Problem
Current foldable electronic devices face issues with inconsistent bending radii when folded inwardly or outwardly, leading to potential damage from arching or crushing of the flexible display panel body.
Innovation Solution
A flexible display panel design featuring a support layer with adjacent bendable portions and sub-portions, equipped with openings, that supports the display panel body in various folded states, maintaining stability and preventing damage by adjusting bending radii and distributing stress effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the flexible display panel body is folded outwardly with a larger bending radius, then the panel body may become arched, but folding inwardly with a smaller bending radius causes crushing and damage
Solution Approach 1:
The support plate is designed with a movable support surface that can dynamically adjust its position and orientation. When the panel is folded outwardly, the support surface moves to accommodate the larger bending radius and prevent arching. When folded inwardly, it adjusts to provide support at the smaller bending radius to prevent crushing. This dynamic adjustment allows the same structure to handle both folding directions effectively.
Solution Approach 2:
The support mechanism changes the geometric parameters of the support surface based on the folding state. By adjusting the position and angle of the movable support surface, the system adapts the support characteristics to match the required bending radius for each folding direction, thereby maintaining panel integrity regardless of whether the panel is folded inwardly or outwardly.
2Volume of moving object
If a support plate avoidance mechanism is used in inwardly foldable devices to reserve space, then enough space is available for the folded panel, but the panel body forms a drop shape that may cause damage
Solution Approach 1:
The movable support surface acts as an intermediary between the support plate avoidance mechanism and the flexible display panel body. It fills the gap created by the avoidance mechanism and provides the necessary support to prevent the panel from forming a damaging drop shape, while still allowing sufficient space to be reserved for the folded panel.
3Stability of the object's composition
If the bending mechanism surface always matches the panel body in outwardly foldable devices, then the panel is neither pulled nor crushed, but the panel may still arch when folded
Solution Approach 1:
The movable support surface dynamically adjusts its position to maintain contact with the panel body during outward folding. This dynamic adjustment allows the support surface to match the panel's curvature at different folding angles, preventing both pulling and crushing while also counteracting arching by providing continuous support.
Data Source
AI summary
A flexible display panel and an electronic device are provided. The flexible display panel includes a flexible display panel body and a support layer disposed on a side of the flexible display panel body. The support layer includes a first bendable portion and a second bendable portion that are adjacent to each other. The first bendable portion includes a first bendable sub-portion and a second bendable sub-portion that are both provided with openings. The second bendable portion includes a third bendable sub-portion and a fourth bendable sub-portion that are both provided with openings.