Foldable Display Guide Unit for Controlled Folding Sequence
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Solution Overview
Problem
Foldable display devices face interference issues between folding portions, which can lead to damage and reduced reliability due to improper folding sequences and radii of curvature.
Innovation Solution
A display device design featuring a display module with specific folding portions and a guide unit, including a rotation part, connection parts, a wire part, and an elastic part, that determines the folding order and minimizes interference by using hinges and elastic components to manage curvature and movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple folding portions are used to enable various shapes and improve portability, then adaptability and ease of operation are improved, but interference between folding portions occurs leading to reduced reliability
Solution Approach 1:
The guide unit determines and enforces a specific folding sequence where the first folding portion folds before the second folding portion. This preliminary establishment of folding order prevents interference between the folding portions by ensuring that when one folds, the other is in a position that avoids collision or obstruction.
Solution Approach 2:
The guide unit acts as an intermediary mechanism between the first and second folding portions. It includes a rotation part that rotates in response to folding forces and connection parts that interact with both folding portions, mediating their relative movements to prevent interference while maintaining the ability to achieve various folded configurations.
2Ease of manufacture
If folding portions are designed with equal or similar radii of curvature for structural simplicity, then manufacturing is easier, but interference occurs between folding portions during folding
Solution Approach 1:
The guide unit serves as a mediating structure that allows both folding portions to maintain similar radii of curvature for manufacturing simplicity while preventing their harmful interaction. The rotation part and connection parts of the guide unit coordinate the folding movements, ensuring that the simplified structural design does not lead to interference.
Solution Approach 2:
The guide unit preliminarily establishes the spatial relationship and movement coordination between the two folding portions with similar radii. By determining the folding sequence and guiding the relative movements in advance, it prevents interference before it can occur, allowing the use of structurally simple folding portions with equal or similar curvatures.
3Ease of operation
If the guide unit includes multiple connection parts and elastic components for precise folding control, then folding sequence control is improved, but device complexity increases
Solution Approach 1:
The guide unit utilizes the elastic part's inherent elastic recovery force to automatically return the rotation part to its initial position after folding operations. This self-service mechanism eliminates the need for additional complex resetting mechanisms, allowing precise folding sequence control through relatively simple elastic component design.
Solution Approach 2:
The guide unit combines multiple functions into a single integrated structure: the rotation part provides rotational movement for sequence control, the connection parts link to both folding portions, and the elastic part provides both driving force and resetting function. This merging of functions achieves precise folding control while limiting the increase in device complexity.
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 design enhances the reliability of foldable display devices by minimizing interference between folding portions, ensuring proper folding sequences, and reducing the risk of damage, thereby improving user convenience and device durability.
Implementation Method 1
an elastic part including a first end fixed to the second surface of the support member and a second end fixed to at least one part selected from the rotation part, the first connection part and the second connection part
Data Source
AI summary
A display device includes a display module including a display panel and a support member including a first surface facing a rear surface of the display panel and a second surface opposite to the first surface, and a guide unit disposed on the second surface of the support member. The display module includes first and second folding portions, a central portion disposed between the first and second folding portions and left and second display portions. The guide unit includes a rotation part overlapping the central portion, a first connection part connected to the rotation part, a second connection part connected to the rotation part, a wire part fixed to the first display portion and fixed to the second connection part, and an elastic part fixed to the second surface of the support member and fixed to the rotation part, the first connection part or the second connection part.