Variable-Length Support Link for Flat Rollable Mobile Displays
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Solution Overview
Problem
Existing mobile terminals with flexible displays face challenges in maintaining a flat state while allowing size adjustments, leading to potential damage from concentrated stress and sagging during state changes.
Innovation Solution
A mobile terminal design featuring a first and second frame, a slide frame, and a support link with variable length, along with rollers and a driving unit, enables the terminal to change size while maintaining a flat state by distributing stress and preventing sagging through controlled movement and tension management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the mobile terminal uses a flexible display to change size, then the adaptability is improved, but the display unit may suffer from concentrated stress and sagging
Solution Approach 1:
A support link is introduced as an intermediary component between the first frame and second frame. This support link provides structural reinforcement during size changes, distributing stress away from the flexible display and preventing sagging, thereby maintaining display integrity while enabling size adaptability
Solution Approach 2:
The support link is designed with variable length capability, allowing it to dynamically adjust its configuration as the mobile terminal transitions between folded and unfolded states. This dynamic adjustment ensures continuous support and stress distribution throughout the transformation process
2Volume of moving object
If the mobile terminal is folded to a predetermined angle, then the portability is improved, but the flat state may be compromised
Solution Approach 1:
The support link dynamically adjusts its length and orientation based on the folding angle, providing continuous structural support that maintains the flatness of the display surface even when folded to predetermined angles for portability
Solution Approach 2:
The support link changes its geometric parameters (length, orientation) in response to folding angle changes, allowing the terminal to achieve compact folded states while maintaining the flat configuration of the display unit during both folded and unfolded states
Data Source
AI summary
Disclosed herein is a mobile terminal switchable from a first state to a second state by extending in the first direction, including a first frame, a second frame movable from the first frame in the first direction or a second direction opposite to the first direction, a slide frame movable in the first direction or the second direction with respect to the second frame, and a support link having one end hinged to the first frame and an opposite end hinged to the second frame, the support link having a variable length. The mobile terminal may maintain a flat state regardless of change in the state of the mobile terminal by preventing the front surface from being separated or sagging.