Foldable Display Cover Plate Sliding Mechanism
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Solution Overview
Problem
Conventional foldable display devices suffer from uneven tension distribution when folded, leading to potential damage to the display panel due to greater tension on the outer folded part compared to the inner part.
Innovation Solution
A foldable display device design that includes a cover plate slidably transferred within a case to accommodate relative length changes during folding, combined with a restoring unit using magnetic materials to apply tensile force and ensure complete flat unfolding, thereby preventing damage and improving panel flatness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional hinge structures are used to enable folding, then the display device can be folded for portability, but uneven tension distribution causes damage to the display panel
Solution Approach 1:
A sliding structure comprising a sliding member and guide rails is introduced as an intermediary mechanism between the display panel and the housing. This sliding structure absorbs the length difference generated during folding by allowing the cover plate to slide relative to the housing, thereby preventing direct transmission of uneven tension to the display panel and eliminating the need for conventional hinge structures that cause panel damage.
2Adaptability or versatility
If the display panel is stretched to different lengths during folding, then folding is enabled, but tension concentration on the outer folded part causes damage
Solution Approach 1:
The sliding structure is designed to accommodate and cushion the length difference that occurs during folding before it can cause damage to the display panel. The guide rails and sliding member create a controlled sliding mechanism that absorbs the mechanical stress, preventing tension concentration on the outer folded part of the display panel while enabling the folding function.
3Adaptability or versatility
If the display panel is folded, then portability is improved, but the panel may not unfold completely flat
Solution Approach 1:
The sliding structure acts as a mediator that manages the dimensional changes during folding and unfolding. By allowing controlled sliding movement, it ensures that the display panel can be folded for portability while maintaining its ability to unfold completely flat, as the sliding mechanism compensates for the length differences that would otherwise prevent complete flattening.
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 reduces damage to the display panel during folding, ensures complete flat unfolding, enhances reliability, and stabilizes the folding operation, allowing for long-term use without noise generation.
Implementation Method 1
a restoring unit applying tensile force to the cover plate combined with the display panel within the case so as to restore the folded display panel within the case to an unfolded state
Data Source
AI summary
Disclosed is a foldable display device in which a display panel and a cover plate are combined within a case. when the display panel and the case are being folded in one direction, the cover plate is slidably transferred within the case so as to correspond to a deformed length of the case.