Flexible Support Structure for Rolling Display Deformation
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Solution Overview
Problem
Flexible displays in sliding display arrangements face significant deformation when folded around electronic devices due to stretching and compressing, which is exacerbated by the display's extendability and the need for minimal outer dimensions.
Innovation Solution
A flexible support structure comprising a flexible sheet with a slit pattern and a support arrangement of parallel support rods, which minimizes stretching and compression by allowing the sheet to fold around a folding axis while being supported by the rods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the display is made extendable to increase screen area, then the display size is improved, but the display deformation increases due to constant bending and unbending
Solution Approach 1:
The support structure is divided into multiple rigid support rods that are spaced apart, creating multiple segments along the display length. This segmentation allows the display to be supported at multiple points during extension, reducing the bending radius and minimizing deformation while maintaining the extended display area.
Solution Approach 2:
The support rods are arranged in a three-dimensional configuration with varying heights and positions, creating a multi-dimensional support structure. This dimensional arrangement allows the display to be supported at multiple levels during extension, reducing the effective bending radius and minimizing deformation while maintaining the extended area.
2Volume of moving object
If the display is folded around the device to reduce outer dimensions, then the device compactness is improved, but the display deformation increases due to stretching and compression
Solution Approach 1:
The support structure is divided into multiple rigid support rods that are spaced apart, creating multiple segments along the display length. This segmentation allows the display to be supported at multiple points during folding, reducing the bending radius and minimizing deformation while maintaining compact device dimensions.
Solution Approach 2:
The support rods are positioned at specific locations along the display length where they provide maximum support during folding. The spacing and positioning of support rods is optimized to provide local support at critical deformation points, reducing stretching and compression while maintaining compact device volume.
3Volume of moving object
If the bending radius of the display is reduced to fit around the device, then the device compactness is improved, but the display deformation increases due to stretching and compression
Solution Approach 1:
The support structure is divided into multiple rigid support rods that are spaced apart, creating multiple segments along the display length. This segmentation allows the display to be supported at multiple points during folding, reducing the bending radius and minimizing deformation while maintaining compact device dimensions.
Solution Approach 2:
The support rods are arranged in a three-dimensional configuration with varying heights and positions, creating a multi-dimensional support structure. This dimensional arrangement allows the display to be supported at multiple levels during folding, reducing the effective bending radius and minimizing deformation while maintaining compact device volume.
Data Source
Figure 1a~1b
Figure 2
Figure 3
AI summary
Foldable support structure (1) for a rolling display arrangement (2), comprising a foldable sheet (3) and a support arrangement (4) comprising a plurality of support rods (5) arranged to support the foldable sheet (3). The center axes (A1) of the support rods (5) extend in parallel with each other and with the foldable sheet (3). The foldable sheet (3) comprises a sheet material and a throughgoing slit pattern allowing the sheet material to fold around a folding axis (A2) parallel with the center axes (A1). Each support rod (5) is connected to the foldable sheet (3) by means of a plurality of attachments (6). This solution provides a foldable support structure which facilitates that, as a display is folded, there is as little stretching and compression as possible of the display, reducing the amount of deformation that the display is subjected to.