Flexible Display Support Structure for Flatness and Low Weight

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Solution Overview

Problem

Existing slidable and rollable display devices face issues with warping and poor flatness during sliding and rolling processes, necessitating improved support structures to maintain display quality.

Innovation Solution

A flexible display device with a support structure comprising a support strip and sliding parts connected by recessed and protruding structures, made of different materials, ensuring a reliable connection and reduced weight through the use of carbon fiber and metal or resin materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If a support structure is used to maintain display flatness, then warping is prevented, but the device weight increases

Engineering Contradiction:
Improvedisplay flatnessVSAvoiddevice weight
Core Design Contradiction:
ShapeVSWeight of moving object

Solution Approach 1:

The support structure uses composite materials consisting of a support strip and sliding parts made of different materials (metal, resin, or carbon fiber). This composite construction provides sufficient structural strength to maintain display flatness and prevent warping while keeping the overall weight lower than traditional single-material support structures.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The support structure is divided into multiple segments including a support strip and multiple sliding parts. This segmentation allows each component to be optimized independently for strength-to-weight ratio, providing adequate support for display flatness while minimizing overall device weight.

Inventive Principle:
Principle #1Segmentation

2Weight of moving object

If different materials are used for support strip and sliding parts, then weight is reduced, but connection reliability becomes challenging

Engineering Contradiction:
Improvedevice weightVSAvoidconnection reliability
Core Design Contradiction:
Weight of moving objectVSReliability

Solution Approach 1:

The support strip and sliding parts are merged into an integrated support structure through the connecting structure. This integration ensures reliable connection between different materials (metal, resin, or carbon fiber) while maintaining the weight benefits of using lightweight materials for the sliding parts.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The use of composite materials with different properties (metal for strength, resin or carbon fiber for weight reduction) is managed through proper material selection and connection design, achieving both weight reduction and connection reliability simultaneously.

Inventive Principle:
Principle #40Composite materials

3Stability of the object's composition

If sliding parts extend beyond support strip, then connection stability is improved, but device complexity increases

Engineering Contradiction:
Improveconnection stabilityVSAvoidsupport structure complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The support member is segmented into a support strip and sliding parts, with the sliding parts extending beyond the support strip ends. This segmentation provides stable connection points while keeping each component's geometry relatively simple, avoiding excessive overall complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sliding parts serve multiple functions: they extend beyond the support strip to provide stable connection points, and they are made of lightweight materials to reduce overall device weight. This multi-functionality achieves connection stability without proportionally increasing complexity.

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

Data Source

PatentUS20250355464A1Display device
Publication Date: 2025.11.20 BOE TECHNOLOGY GROUP CO LTD
  • US20250355464A1 patent drawing
  • US20250355464A1 patent drawing
  • US20250355464A1 patent drawing

AI summary

Provided is a display device. The display device includes: a flexible display panel and a support structure, the flexible display panel being disposed on a side of the support structure, and the support structure including a plurality of support members arranged in parallel; wherein the support member includes a support strip and two sliding parts; wherein the two sliding parts are respectively disposed at two ends of the support strip, and at least a portion of the sliding part extends beyond the support strip in a length direction of the support strip; the support strip and the sliding parts are made of different materials; and a first connecting structure is disposed at each of two ends of the support strip, and the sliding part includes a second connecting structure.