Foldable Display Support Structure for Interval Sagging Control
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Solution Overview
Problem
In current display devices, an interval between the flexible display module and the protection casing lacks a support structure, leading to sagging and poor surface flatness when the upper surface is touched.
Innovation Solution
A support component with an extension portion is integrated into the display device to support the protection component at the interval, enhancing surface flatness and reliability by preventing sagging and protecting electrical connectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an interval is defined between the flexible display module and the side wall of the protection casing, then the flexible display module can be properly positioned and protected, but the cover plate lacks support structure in the interval region, causing sagging and poor surface flatness
Solution Approach 1:
The support component is divided into multiple portions: a main body portion and an extension portion. The extension portion specifically targets the interval region to provide localized support, while the main body provides overall structural support. This segmentation allows support to be provided only where needed, preventing sagging in the interval region without requiring a completely rigid structure throughout.
Solution Approach 2:
The support component has different structural characteristics in different regions. The extension portion is specifically designed to extend into the interval region between the display module and protection casing wall, providing localized support exactly where the cover plate needs it most. This local quality approach provides support precisely where needed rather than uniformly throughout the entire structure.
2Manufacturing precision
If support structures are added to the interval region to prevent sagging, then surface flatness improves, but the device structure becomes more complex and the lightness advantage is reduced
Solution Approach 1:
Rather than providing complete support across the entire cover plate area, the extension portion provides partial support only in the critical interval region where sagging occurs. This partial action approach achieves the necessary surface flatness improvement without adding excessive weight from a comprehensive support structure.
Solution Approach 2:
The support component appears to be designed as a thin, lightweight structure that can extend into the interval region without adding significant weight. The extension portion acts as a thin support element that maintains surface flatness while preserving the overall lightness characteristic of flexible display devices.
3Reliability
If the cover plate is made rigid to prevent sagging, then surface flatness improves, but the flexibility and foldability of the display device is compromised
Solution Approach 1:
The support structure is segmented into a main body and an extension portion, allowing different regions to have different degrees of rigidity. The extension portion in the interval region provides localized support to prevent sagging, while the rest of the structure remains flexible enough to allow folding and bending operations.
Solution Approach 2:
Rigidity is applied locally only where needed - in the interval region between the display module and protection casing wall. The extension portion provides this localized rigidity to prevent cover plate sagging, while other regions of the display device maintain their flexibility and ability to fold without resistance from the support structure.
Data Source
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AI summary
A display device is provided. The display device includes a backplate and a bending portion. The display panel includes a support component, a display module, and a protection component disposed in a laminate. The support component includes a body and an extension portion. An interval region is defined between the display module and an inner side wall of the bending portion, the protection component includes a first portion corresponding to the interval region and a second portion located at an end portion of the bending portion, and the extension portion supports the first portion.