Foldable Display Support Plate Structure to Eliminate Visible Creases
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Solution Overview
Problem
Flexible display devices with folding portions are prone to visible creases due to support bars arranged apart, which are visually recognized as creases when the device is folded.
Innovation Solution
A display device design that includes support joints with a stepped shape, arranged to make contact when unfolded, and covered by a cover film to prevent creases and foreign substance introduction, eliminating the need for separate coupling structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If support bars are arranged spaced apart from each other, then the support structure can be simpler and easier to manufacture, but the support bars are visually recognized as creases in the folding portion
Solution Approach 1:
Multiple support bars are merged into a single integrated support plate structure, eliminating the visual separation that causes crease appearance while maintaining the structural support function. The support plate is formed as one continuous piece rather than separate bars.
Solution Approach 2:
The support structure transitions from a one-dimensional arrangement of separate bars to a two-dimensional continuous support plate, filling the gap between support elements and eliminating the visual crease effect while providing comprehensive support.
2Device complexity
If support joints are not covered, then the structure remains simple, but foreign substances can be introduced between the support joints
Solution Approach 1:
A cover film is introduced to seal and protect the support joints, preventing foreign substance contamination while maintaining structural simplicity. The thin film cover provides protection without adding mechanical complexity.
Solution Approach 2:
The cover film acts as an intermediary barrier between the support joints and the external environment, preventing direct contact with foreign substances while allowing the support joint structure to remain simple and functional.
3Stability of the object's composition
If separate coupling structures are used to attach support bars, then the support structure can be more stable, but the device complexity increases
Solution Approach 1:
The support bars are merged into a single integrated support plate, eliminating the need for separate coupling structures to attach multiple bars. The continuous structure provides inherent stability without additional coupling components.
Solution Approach 2:
The integrated support plate performs multiple functions simultaneously: providing structural support, maintaining spacing, and eliminating the need for separate coupling mechanisms, thereby reducing overall device complexity while maintaining stability.
Data Source
AI summary
A display device includes a display module, a support plate disposed under the display module and including a first support plate, a second support plate, and a plurality of support joints disposed between the first and second support plates, and a cover film disposed under the support plate and covering the support joints. The support joints are not attached to the cover film.