Foldable Display Rotating Assembly Collision Avoidance
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Solution Overview
Problem
Foldable display devices suffer from damage due to the crushing of flexible displays by support elements when folded in half, leading to impaired display performance.
Innovation Solution
A foldable display device design featuring an intermediate casing, rotatably connected support housings, and rotating assemblies that create a collision avoidance space for the bend end of the flexible display, along with a hard layer structure in the bend areas to enhance bending capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If support elements are folded up to the sides of the flexible display in the forward folded state, then the device achieves a compact folded form, but the bend portions of the flexible display are crushed by the support elements causing damage
Solution Approach 1:
The support housing is designed to rotate between different positions. In the forward folded state, it rotates to position itself away from the bend portion of the flexible display, avoiding crushing. In the backward folded state, it rotates to provide support. This dynamic repositioning resolves the contradiction between achieving compact form and protecting the display.
Solution Approach 2:
The rotating assembly acts as an intermediary mechanism between the support housing and the flexible display. It enables the support housing to dynamically adjust its position, mediating between the need for structural support and the need to avoid damaging the bend portions of the display during folding.
2Stability of the object's composition
If support elements are positioned to provide structural support, then device stability is improved, but the support elements may crush the bend portions of the flexible display when folded
Solution Approach 1:
The support housing rotates to different positions depending on the folding state. When folded forward, it rotates away from the bend portion to eliminate crushing force. When folded backward or in unfolded state, it rotates into position to provide structural support, thus dynamically balancing stability and harm avoidance.
Solution Approach 2:
The rotating mechanism is designed in advance to prevent the harmful effect of crushing. By pre-configuring the rotation capability, the support housing can proactively position itself away from the bend portion before crushing occurs, rather than reacting after damage happens.
Data Source
AI summary
A foldable display device includes a flexible display, an intermediate casing, two support housings disposed on two opposite sides of the intermediate casing, respectively, and a rotating assembly. One end of the rotating assembly is rotatably connected to a corresponding one of the support housings, and another end is a free end extending to an inside of the intermediate casing. The free end of the rotating assembly rotates in a direction adjacent to an inner wall of the intermediate casing when folding the foldable display device, so that the rotation of the two rotating assemblies allows for a collision avoidance space for accommodating a bend end of the flexible display.