Rollable Display Support and Linkage for Smooth Panel Transition

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Solution Overview

Problem

Existing display devices lack the ability to efficiently transition between rolled and unrolled states while maintaining display functionality and durability.

Innovation Solution

A rollable display device design incorporating a display panel, support, fixing bracket, roller, links, and a driver mechanism that allows for rolling and unrolling of the display panel.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a display device is made flexible and rollable, then portability and durability are improved, but the complexity of the device structure increases

Engineering Contradiction:
ImproveportabilityVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The device is divided into distinct functional modules: a display panel that can be rolled, a separate support structure, and an independent driving mechanism. This segmentation allows each component to be optimized independently while maintaining overall system flexibility and reducing structural complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support structure incorporates movable links and a driving mechanism that enable dynamic transition between rolled and unrolled states. This dynamic design allows the display device to adapt its form factor while maintaining structural integrity, improving portability without permanent complexity.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If a display panel is made rollable, then portability is improved, but the reliability of maintaining display functionality during transition deteriorates

Engineering Contradiction:
ImproveportabilityVSAvoiddisplay functionality
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The support structure is pre-configured with links and connection points that guide the rolling motion along a predetermined path. This preliminary structural arrangement ensures that the display panel transitions smoothly from unrolled to rolled state while maintaining display functionality throughout the transition process.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The support structure acts as an intermediary between the display panel and the rolling motion. It provides mechanical guidance and support during the transition, ensuring that the display panel maintains its functional integrity while being rolled or unrolled.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If a rolling mechanism is added to the display device, then portability is improved, but the device complexity increases

Engineering Contradiction:
ImproveportabilityVSAvoidmechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The driving mechanism is designed to be integrated within the support structure itself, using the support's own components (links, connection points) to enable the rolling function. This self-service design reduces the need for separate, complex external mechanisms while maintaining the portability benefit.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS12439532B2Rollable display device
Publication Date: 2025.10.07 SAMSUNG DISPLAY CO LTD
  • US12439532B2 patent drawing
  • US12439532B2 patent drawing
  • US12439532B2 patent drawing

AI summary

A rollable display device includes a display panel; a support disposed on a rear surface of the display panel; a fixing bracket to which a first end of the support and a first end of the display panel are fixed; a roller to which a second end of the support is fixed; a first link including a first end coupled to the fixing bracket; a second link including a first end fastened to a second end of the first link; and a driver connected to a second end of the second link.