Roll-Slide Mobile Terminal with Guide and Impact Buffering
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Solution Overview
Problem
Existing rollable mobile terminals face issues with the durability and stability of flexible displays, as they are limited to specific folding positions, prone to corrugation, and susceptible to damage from external impacts when extended.
Innovation Solution
A roll-slide mobile terminal design featuring a flexible display unit supported by a frame structure with drive units and rollers, allowing stable extension and retraction without limiting the folding position, and incorporating elastic units to manage external impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the flexible display is allowed to fold at any position without limitation, then the durability of the flexible display is improved, but the display may become unstable or generate corrugation when extended
Solution Approach 1:
A guide structure consisting of guide protrusions and guide grooves is introduced as an intermediary mechanism between the flexible display and the housing. This guide structure allows the flexible display to fold at various positions while maintaining stability when extended, preventing corrugation without restricting folding freedom, thus resolving the contradiction between durability and stability.
2Area of moving object
If the flexible display is extended fully from the housing, then the screen area is maximized for user interaction, but the display becomes susceptible to damage from external impacts
Solution Approach 1:
A buffer structure is provided in the housing that engages with the flexible display when extended. This buffer structure serves as a protective mechanism that cushions and absorbs external impacts before they can damage the flexible display, allowing the display to be fully extended for maximum screen area while protecting against impact damage.
3Stability of the object's composition
If a guide structure is added to prevent corrugation and improve stability, then the display stability is improved, but the device complexity increases
Solution Approach 1:
The guide structure is segmented into discrete guide protrusions on the housing and corresponding guide grooves on the flexible display. This segmentation allows the guide structure to be integrated into existing components without requiring a completely new mechanism, thereby improving display stability while minimizing the increase in overall device complexity.
Data Source
Figure 1
Figure 2(a)~2(b)
Figure 3(a)~3(b)
AI summary
A roll-slide mobile terminal including a first frame; a second frame configured to slide with respect to the first frame in a first direction; a first roller provided in one first-direction end of the second frame; a third frame provided in a rear surface of the second frame; a flexible display unit having one end fixed to the first frame and the other end coupled to the third frame and being bent towards a rear surface when rolled around the first roller; and a drive unit configured to guide a sliding movement of the first frame with respect to the second frame in the first direction to transition the roll-slide mobile terminal from a first state in which the flexible display unit is bent towards the rear surface to a second state in which the flexible display unit is extended in the first direction, and to guide a sliding movement of the first frame with respect to the second frame in a second direction opposite the first direction to transition the roll-slide mobile terminal from the second state to the first state.