Rollable Display Support Member Segmented Links Flatness
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional rollable display devices face challenges in maintaining a flat expanded state when a force is applied perpendicularly to the screen, leading to image distortion, necessitating a support structure to keep the display flat.
Innovation Solution
A rollable display device design featuring a support member with segmented links and a sprocket mechanism that accommodates the display in a body, allowing it to expand and retract while maintaining the display's flatness through magnetic and frictional connections, and a locking unit for adjustable expansion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible display is wound around a roller and unrolled for use, then the display can be compactly stored and expanded when needed, but the display cannot be maintained in a flat expanded state when force acts perpendicularly on the screen, causing image distortion
Solution Approach 1:
A support member is introduced as an intermediary element between the display and the external environment. This support member includes a first support unit that contacts the rear surface of the display and a second support unit that contacts the front surface, acting as a mediator to distribute and resist perpendicular forces, thereby maintaining the display's flatness during expanded use.
Solution Approach 2:
The support member is divided into multiple segmented links that can pivot relative to each other. This segmentation allows the support structure to adapt to the display's curvature during rolling while providing rigid support when expanded, resolving the contradiction between flexibility during storage and rigidity during use.
2Stability of the object's composition
If a support structure is added to maintain the display flat, then image distortion is prevented, but the device complexity increases
Solution Approach 1:
The support member is integrated with the rolling mechanism by connecting it to the roller through connection members. This merging of functions allows the same structural element to serve both as a support for maintaining flatness and as part of the rolling/expansion mechanism, thereby reducing overall device complexity.
Solution Approach 2:
The support member performs multiple functions: it supports the display to maintain flatness, connects to the roller for coordinated movement, and can be controlled to adjust expansion. This multi-functionality reduces the need for separate components, simplifying the overall device structure.
3Area of moving object
If the display is made larger for better viewing, then the viewing area increases, but the size of the electronic apparatus increases accordingly
Solution Approach 1:
The display transitions from a static large-size configuration to a dynamic state where it can be rolled into a compact form. The support member enables this dynamic transformation by providing structural support during expansion and contraction, allowing the display area to be large when needed while keeping the apparatus size small during storage.
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
The solution effectively supports the display in a flat expanded state, preventing image distortion and allowing for adjustable expansion, thereby enhancing the stability and usability of the rollable display device.
Implementation Method 1
moves the support member, wherein the display is configured to be unwound from the roller and is unrolled outward from the first body to expand in the length direction
Implementation Method 2
a plurality of connection members having a first connection portion is provided at the edge of the display, and wherein a second connection portion configured to be connected to the first connection portion is provided at the plurality of segmented links
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A rollable display device is provided. The rollable display device includes first and second bodies, a display, a roller supported in the first body to be rotatable, to which one end portion of the display in a length direction of the display is fixed and around an outer circumference of which the display is wound, and a support member having a plurality of segmented links connected to pivot around a hinge shaft perpendicular to an image display surface, the support member being accommodated in an accommodation unit provided in the first body. As the first body is separated from the second body, the display is unwound from the roller and is unrolled outward from the first body to expand in the length direction, and the support member is unrolled outward from the first body in the length direction to support a rear surface of the display.