Flexible Display Mobile Terminal Frame Synchronization
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Solution Overview
Problem
Mobile terminals with flexible displays face challenges in maintaining durability and stability when folded, particularly in preventing damage from external shocks and ensuring smooth touch input during extension.
Innovation Solution
A mobile terminal design featuring a first and second frame configuration with a drive unit that synchronizes the movement of third frames to control the display's extension and retraction, providing stable support and minimizing the risk of damage from external shocks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the flexible display unit is extended to increase screen size, then the display area is enlarged, but the display becomes vulnerable to external shocks and may break
Solution Approach 1:
The flexible display unit is rolled up into a compact form and stored within the mobile terminal body when not in use. The display can be extended outward from the terminal body when needed, allowing the large display area to be nested within a compact structure, thereby protecting it from external shocks while maintaining the ability to provide a large screen when required.
2Volume of moving object
If the flexible display unit is folded to enable compact storage, then the terminal size is reduced, but the display may be damaged at the folded point
Solution Approach 1:
The display folding position is made dynamic rather than fixed. The display can be folded at different positions along its length depending on the extension state, allowing the folded point to move away from any single vulnerable location. This dynamic folding mechanism distributes stress and prevents damage concentration at a specific folded point.
3Area of moving object
If the flexible display unit is extended outward, then the screen size is increased, but the structural stability during extension is compromised
Solution Approach 1:
A support structure is provided in advance within the terminal body that is specifically designed to support the flexible display unit during its extension process. This preliminary support structure ensures that as the display extends outward to increase screen size, it remains structurally stable and properly positioned throughout the extension movement.
4Adaptability or versatility
If the flexible display unit is made extendable, then the functionality is enhanced, but the complexity of the terminal structure increases
Solution Approach 1:
The support structure for the flexible display unit is merged with the terminal body structure itself, rather than being a separate independent component. This integration allows the display to be extendable and adaptable while minimizing the addition of separate structural elements, thereby reducing the overall complexity increase that would result from making the display extendable.
Data Source
AI summary
Disclosed is a mobile terminal having a flexible display unit. The present disclosure provides a mobile terminal including a first frame, a second frame coupled to the first frame movably and configured to move in a first direction against the first frame, a third frame coupled to the second frame movably and configured to move in the first direction against the second frame, a flexible display unit including a first region disposed on a front side of the mobile terminal and coupled to the first frame, a second region disposed on a backside of the mobile terminal and coupled to the third frame, and a third region elongated between the first and second regions, wherein the third region is disposed on the front side or backside of the mobile terminal selectively according to a moving direction of the second frame by being rolled around the second frame, and a drive unit configured to move the second frame in the first direction against the first frame and move the third frame in the first direction against the second frame.