Rollable display device
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Solution Overview
Problem
Rollable display devices face instability when used in laptop or monitor modes, as the screen may fall back or move due to lack of adequate support, compromising convenience and usability.
Innovation Solution
The rollable display device incorporates a panel support system with multiple support bars and flexible coupling portions, including rotatable and bendable holding bars with anti-slip coatings, which maintain the screen's posture by distributing weight evenly and preventing slipping, allowing it to remain stable in various usage configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the rollable display device uses a simple support structure, then the device complexity is reduced, but the stability of the screen posture deteriorates
Solution Approach 1:
The support structure is divided into multiple support bars (first support bar, second support bar, third support bar) with distinct functions. Each support bar contains specific holding bars positioned at different locations to provide targeted support. This segmentation allows the system to achieve high stability through coordinated multiple components rather than a single complex structure.
Solution Approach 2:
The holding bars are designed to be rotatable or bendable, allowing them to dynamically adjust their positions and angles. The first holding bars can rotate about first connection portions, and the second holding bars can rotate about second connection portions. This dynamic capability enables the support structure to adapt to different usage scenarios while maintaining stability.
2Adaptability or versatility
If the holding bars are made rotatable and bendable, then the adaptability of the support structure is improved, but the reliability of the connection portions deteriorates
Solution Approach 1:
The connection portions are pre-designed with specific rotational and bending capabilities to accommodate expected movements. The first connection portions and second connection portions are structured in advance to allow controlled rotation and bending, ensuring that the holding bars can adapt to different positions while maintaining reliable connections throughout their operational range.
3Stability of the object's composition
If the first holding bars are unfolded to contact the bottom plane, then the stability of the device is improved, but the volume occupied by the support structure increases
Solution Approach 1:
When not in use, the first holding bars and second holding bars are folded back and received within recess portions of their respective support bars. The first holding bars are received in first recess portions of the first support bar, and the second holding bars are received in second recess portions of the second support bar. This nesting arrangement minimizes the volume occupied by the support structure while maintaining stability when deployed.
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 ensures the rollable display device maintains a stable posture without falling back or moving, enhancing user convenience and usability in both laptop and monitor modes by effectively distributing weight and preventing slipping.
Implementation Method 1
each of the pair of first holding bars may include a first anti-slip coating layer at the second end
Data Source
AI summary
A rollable display device includes: a panel support including a plurality of support bars arranged in a direction and a plurality of flexible coupling portions between support bars of the plurality of support bars and coupling the plurality of support bars together; and a flexible display panel fixed to respective front sides of support bars of the plurality of support bars, and the plurality of support bars includes a first support bar that is spaced apart from an outermost support bar of the plurality of support bars, and the first support bar includes a pair of first holding bars that are spreadable toward an outside from a rear side of the first support bar.