Roll-Slide Mobile Terminal Display Support Mechanism
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Solution Overview
Problem
Existing mobile terminals with flexible displays face challenges such as limited scalability, instability when expanded, and insufficient space due to the design of support structures for flexible displays, leading to issues with durability and usability.
Innovation Solution
A roll-slide mobile terminal design featuring a first and second frame with a sliding mechanism, an expansion support part comprising main, middle, and sub members with guide rails and elastic bodies, and a driving part to manage the expansion and retraction of the display, ensuring stable support and efficient use of space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If a flexible display is folded or rolled to extend the display area, then the display size is increased, but the display becomes unstable and prone to wrinkles
Solution Approach 1:
The support structure is divided into multiple segments including a first support structure and a second support structure that can move relative to each other. This segmentation allows the support structure to adapt to the changing display area while maintaining stability, preventing wrinkles by providing distributed support across the flexible display surface.
Solution Approach 2:
The patent employs a dynamic support structure where the second support structure can slide or move relative to the first support structure. This dynamic capability allows the support structure to adjust its configuration in real-time as the display area changes, maintaining proper support and preventing instability or wrinkle formation during expansion and contraction.
2Stability of the object's composition
If a support structure is added to stabilize the flexible display, then display stability is improved, but internal space is reduced
Solution Approach 1:
The second support structure is designed to be slidable within or relative to the first support structure, creating a nested configuration. When the display area is reduced, the second support structure can be retracted into the first support structure, minimizing the occupied space. When the display area is expanded, the second support structure slides out to provide necessary support, thus maintaining stability without permanently reducing internal space.
3Area of moving object
If the mobile terminal size is increased to accommodate a larger display, then display area is increased, but portability is reduced
Solution Approach 1:
The mobile terminal employs a dynamic display structure where the flexible display can be folded or rolled to change its effective area. The support structures are designed to slide and adjust accordingly, allowing the terminal to maintain a compact form factor when the display is folded while still providing a large display area when needed. This dynamic configuration avoids the need for a permanently larger and heavier terminal structure.
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
Enables flexible display terminals to change size as needed, improves durability by stabilizing the display, reduces the risk of damage, and optimizes internal space for electronic components.
Implementation Method 1
an expansion support part configured to extend in the first direction in response to an expansion of the front surface area of the display part
Data Source
AI summary
In a roll-slide mobile terminal having a flexible display in which a front area is expanded or reduced, in order to solve a problem that the flexible display is not stably supported when expanded, there is provided a roll-slide mobile terminal comprising a first frame, a second frame configured to slidably move in a first direction with respect to the first frame, a display part configured to be flexible, having a front surface provided on a front surface of the first frame, wound at an end portion in a first direction of the second frame, and provided over a rear surface of the second frame, wherein a front surface area is expanded or retracted in response to a movement of the second frame, and an expansion support part configured to expand in the first direction in response to an expansion of the front surface area of the display part to support the front surface area of the display part.