Flexible Display Bending Axis Control via Rotating Support Arms
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Solution Overview
Problem
Flexible display devices face significant deviations between actual and predetermined bending axes during bending, leading to inconsistent bending trajectories, which affects the accuracy and reliability of foldable display devices.
Innovation Solution
A flexible display device comprising a flexible display panel, a rigid structure, and a support structure with separate support arms that can rotate relative to each other, allowing the rigid structure to be bent at a preset angle, thereby controlling the bending axis and reducing deviations between actual and predetermined bending axes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a flexible display device is bent without a support structure, then the device can be bent freely, but the deviation between the actual bending axis and the predetermined bending axis becomes large
Solution Approach 1:
A support structure comprising a first support arm and a second support arm is introduced as an intermediary between the flexible display panel and the bending force. The support arms are rotatably connected to the panel at different positions along the bending axis, providing controlled support during bending. This mediator ensures the panel bends along the predetermined axis while maintaining operational flexibility, resolving the contradiction between bending freedom and bending axis precision.
2Manufacturing precision
If support arms are fixed in position, then the bending axis is precisely controlled, but the device lacks adaptability to different bending states
Solution Approach 1:
The support arms are designed with rotational joints that allow them to dynamically adjust their positions and orientations during the bending process. The first and second support arms can rotate relative to the flexible display panel and to each other, enabling the structure to adapt to different bending angles and states while maintaining precise control over the bending axis. This dynamic capability resolves the contradiction between fixed precision and adaptive versatility.
Data Source
AI summary
A flexible display device and an electronic device are provided. The flexible display device includes a flexible display panel, a rigid structure and a support structure. The support structure includes a set of support arms including a first support arm and a second support arm. The rigid structure is bent at a preset angle based on a combined state of the set of support arms so that the flexible display panel supported by the rigid structure is bent at a same angle as the preset angle. The combined state includes a first use state and a second use state. The first support arm and the second support arm are located on a same plane in the first use state. The preset angle is formed between the first support arm and the second support arm in the second use state.