Slidable Display Support Structure for Boundary Bending Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Slidable display devices experience defects due to bending at the boundary between areas, leading to potential damage and external light reflection issues.
Innovation Solution
A display device design incorporating a first and second area with varying curvatures, supported by a plurality of supporting elements and plates with specific contact and separation distances, and a guide unit to maintain a flat surface and prevent entanglement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display module is curved in the second area to enable sliding functionality, then the display device can be rolled or unrolled, but bending due to lifting of the second area occurs at the boundary between the first area and the second area, causing defects
Solution Approach 1:
The support structure is divided into multiple supporting elements distributed across the second area, with different contact areas and spacing arrangements in different regions. This segmentation allows differential support to counteract the lifting force at the boundary while maintaining overall sliding functionality.
Solution Approach 2:
The supporting elements have different contact areas with the second plate depending on their position - those near the boundary have larger contact areas to provide stronger support where lifting occurs, while those farther away have smaller contact areas. This local differentiation addresses the boundary integrity issue without affecting the overall sliding capability.
2Strength
If the second plate includes pattern portions and segment portions to support the curved display module, then structural support is improved, but external light reflection and reflective color band phenomena occur
Solution Approach 1:
The pattern portions and segment portions that create structural support are designed with openings and transparent regions that allow light to pass through rather than reflect. The structural features that provide strength also serve as light-transmitting elements, converting potential reflection harm into beneficial light transmission for the display.
3Reliability
If supporting elements are disposed under the segment portions with specific contact areas, then bending at the boundary is reduced, but the device complexity increases due to multiple supporting elements with different configurations
Solution Approach 1:
The supporting elements vary in their contact area parameters and spacing distances based on their position in the second area. By systematically changing these parameters (larger contact areas near the boundary, smaller farther away; different spacing distances), the structure achieves differential support to prevent boundary lifting while maintaining a relatively simple overall design approach.
Data Source
AI summary
A display device includes a display module including a first area and a second area extending from at least one side of the first area, wherein a portion of the display module is curved in the second area to have a constant curvature, a first plate disposed under the display module in the first area, a second plate disposed under the display module in the second area, extending from the first plate, and including a plurality of pattern portions defining an opening pattern having an edge of a closed curve and a plurality of segment portions disposed between the plurality of pattern portions, wherein a portion of the second plate overlapping the portion of the display module is curved to have a constant curvature, and a plurality of supporting elements disposed under the plurality of segment portions.