Flexible Support for Foldable Displays Using Density Segmentation

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Solution Overview

Problem

Existing flexible supports for foldable display devices are heavy due to high material density, which hinders the achievement of a lightweight design.

Innovation Solution

A flexible support configuration comprising two first flexible support plates with a lower material density and one second flexible support plate with a higher material density, connected through engagement structures that facilitate weight reduction while maintaining structural integrity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a flexible support is made with high material density to ensure structural support, then the structural strength is improved, but the weight of the support increases

Engineering Contradiction:
Improvestructural supportVSAvoidweight of flexible support
Core Design Contradiction:
StrengthVSWeight of moving object

Solution Approach 1:

The flexible support is divided into multiple support plates (first support plates and second support plates) with different material densities. The first support plates have lower material density while the second support plates have higher material density, creating a segmented structure that optimizes both weight and structural support.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the flexible support are assigned different material densities based on their specific functional requirements. The first support plates use lower density material for weight reduction in less critical areas, while the second support plates use higher density material for enhanced structural support in critical regions.

Inventive Principle:
Principle #3Local quality

2Weight of moving object

If the flexible support structure is simplified to reduce weight, then the weight is reduced, but the structural integrity may be compromised

Engineering Contradiction:
Improveweight of flexible supportVSAvoidstructural integrity
Core Design Contradiction:
Weight of moving objectVSStability of the object's composition

Solution Approach 1:

The flexible support employs a composite structure combining first support plates and second support plates with different material densities. This composite arrangement maintains structural integrity by strategically placing higher density materials in critical support regions while using lower density materials elsewhere, achieving weight reduction without compromising overall structural stability.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The support structure is segmented into multiple plates that work together as a unified system. The first support plates and second support plates are connected through engagement structures, creating a modular yet integrated design that maintains structural integrity while reducing weight.

Inventive Principle:
Principle #1Segmentation

3Weight of moving object

If multiple support plates with different material densities are used, then the weight is reduced and structural support is optimized, but the device complexity increases

Engineering Contradiction:
Improveweight of flexible supportVSAvoidcomplexity of support structure
Core Design Contradiction:
Weight of moving objectVSDevice complexity

Solution Approach 1:

The first support plates and second support plates are merged into a unified flexible support structure through engagement structures. This merging integrates the different density materials into a cohesive system that functions as a single support unit, reducing the need for additional separate components and minimizing overall device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The engagement structures serve multiple functions: they connect the first and second support plates, maintain their relative positions, and enable the different density materials to work together effectively. This multi-functionality reduces the need for separate connection mechanisms, simplifying the overall device structure.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS12213262B2Flexible support, method for manufacturing same, and display device
Publication Date: 2025.01.28 CHENGDU BOE OPTOELECTRONICS TECH CO LTD
  • US12213262B2 patent drawing
  • US12213262B2 patent drawing
  • US12213262B2 patent drawing

AI summary

Provided is a flexible support. The flexible support includes two first flexible support plates and one second flexible support plate. The second flexible support plate includes a first foldable region extending along a first direction, wherein the first foldable region includes a first side edge and a second side edge extending along the first direction; one of the two first flexible support plates is disposed on a side, distal from the second side edge, of the first side edge, the other of the two first flexible support plates is disposed on a side, distal from the first side edge of the second side edge, and the two first flexible support plates are respectively connected to two opposite side edges of the second flexible support plate. A material density of the first flexible support plate is less than a material density of the second flexible support plate.