Flexible Display Rolling Plate and Support Bars for Mobile Terminal
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Solution Overview
Problem
Existing mobile terminals with flexible displays face challenges in maintaining durability and preventing damage from external impacts, especially when the display is bent at a specific point.
Innovation Solution
A mobile terminal design featuring a first frame, a second frame that slidably moves, a slide frame, and a flexible display with regions coupled to different frames, along with a rolling plate and support bars to stabilize and guide the display during extension and sliding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the flexible display unit is bent at a specific position to enable size adjustment, then the display can be extended and scrolled, but the durability of the flexible display unit deteriorates due to concentrated stress at the bending point
Solution Approach 1:
The support structure is divided into multiple support bars arranged in parallel, each supporting different portions of the flexible display. This segmentation distributes the mechanical load and prevents concentrated stress at a single bending point, thereby improving durability while maintaining display size adjustability through the sliding mechanism.
Solution Approach 2:
The support bars are designed to move dynamically with the flexible display as it extends and retracts. The support structure transitions from a static configuration to a dynamic one that adapts to the display's position, ensuring continuous support and reducing stress concentration during bending and scrolling operations.
2Area of moving object
If the flexible display unit is extended to increase screen size, then the display area is enlarged, but the display unit becomes vulnerable to external impacts and damage
Solution Approach 1:
The patent employs a flexible support structure consisting of multiple thin support bars that can bend and deform with the flexible display. This flexible support system absorbs and distributes external impacts across multiple elements rather than concentrating force on the display itself, reducing damage risk while maintaining large display area when extended.
Solution Approach 2:
By dividing the support structure into multiple segmented support bars, the system creates multiple independent load-bearing elements. When external impact occurs on the extended display, the force is distributed across these segmented supports, preventing single-point failure and protecting the display unit.
3Stability of the object's composition
If a support structure is added to maintain flat state of the extended display, then the display stability is improved, but the device complexity increases
Solution Approach 1:
The support structure provides localized support at specific points along the flexible display's length through individually positioned support bars. This local quality approach maintains the flat state of the display where needed without requiring a complex continuous support framework, simplifying the overall structure while achieving stability.
Solution Approach 2:
The support bars are designed to move dynamically with the display extension, maintaining their supportive function without requiring complex locking mechanisms or active control systems. The dynamic nature of the support structure allows it to adapt to different display positions automatically, reducing mechanical complexity.
Data Source
AI summary
Disclosed herein is a mobile terminal including a first frame, a second frame, a slide frame movable with respect to the second frame in a first direction or a second direction, a flexible display including a third region bent to surround the second frame, and a rolling plate attached to a rear of the flexible display. The second frame includes a side portion at an end thereof facing in a third direction perpendicular to the first direction, and a slide rail formed on the side portion. The rolling plate includes a plurality of support bars extending in the third direction and arranged in the first direction, and a slide hook protruding from an end of each of the support bars and movably inserted into the slide rail. The terminal may maintain the display in a flat state by preventing the display from being separated when the second frame is moved.