Foldable Support Plate Structure for Extendable Displays
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Solution Overview
Problem
Existing flexible display devices face challenges in providing a compact and lightweight design that allows for easy folding and extension while maintaining structural integrity and user convenience.
Innovation Solution
A display device design featuring a support plate with a flexible portion and link bars that can be folded and extended, along with guide rails and a case structure, to accommodate the display module, enhancing flexibility and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a flexible display device is designed to be foldable and extendable, then user convenience and portability are improved, but structural integrity and stability deteriorate
Solution Approach 1:
The support plate is divided into a flat portion and a flexible portion with distinct functional characteristics. The flat portion maintains structural integrity while the flexible portion enables folding and extending operations, resolving the contradiction between stability and foldability.
Solution Approach 2:
The support plate transitions from a static rigid structure to a dynamic structure that can change its configuration. The flexible portion allows the support plate to adapt between extended and folded states, maintaining structural integrity during transitions.
2Weight of moving object
If the support plate is made lighter in weight, then portability is improved, but structural strength deteriorates
Solution Approach 1:
Different regions of the support plate have different material properties. The flat portion uses a material or structure with higher strength-to-weight ratio to maintain structural strength, while the flexible portion uses a lighter material that enables folding without compromising overall strength.
Solution Approach 2:
The support plate employs composite material construction combining materials with different properties. This allows the plate to be lighter overall while maintaining necessary structural strength in critical areas through the composite structure.
3Ease of operation
If the flexible portion is made more flexible, then ease of folding is improved, but manufacturing precision deteriorates
Solution Approach 1:
Link bars serve as intermediary elements between the flexible portion and the flat portion. These link bars facilitate controlled folding motion along the folding axis, ensuring precise alignment during manufacturing while maintaining flexibility for easy folding operations.
Solution Approach 2:
The elastic modulus of the flexible portion is specifically adjusted to optimize the balance between flexibility and manufacturability. By controlling the elastic modulus parameter, the material becomes sufficiently flexible for easy folding while maintaining enough rigidity for precise manufacturing and alignment.
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 design provides a lightweight and foldable display device that can be easily extended for larger screen visibility, while maintaining structural stability and user convenience.
Implementation Method 1
a flexible portion (FLP) extending from the flat portion (PLT) and that is foldable such that a portion may be disposed under the flat portion
Implementation Method 2
a plurality of link bars that are disposed on both side surfaces of the flexible portion opposite to each other in the one direction and that protrude in the one direction
Data Source
AI summary
A display device includes a display module, a support plate that is disposed on a rear surface of the display module and that includes a flat portion and a flexible portion that extends from the flat portion and that is foldable such that a portion is disposed under the flat portion, wherein the flexible portion is foldable about a folding axis extending in one direction, and a plurality of link bars that are disposed on both side surfaces of the flexible portion opposite to each other in the one direction and that protrude in the one direction.