Retractable Display Support Structure for Rollable Large Screens

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Solution Overview

Problem

Current display devices, such as large screen TVs, have rigid fixed structures that are not adjustable, making them unsuitable for various applications and programs, and there is a need for a flexible display solution that can be bent, folded, or rolled without damage.

Innovation Solution

A retractable display device with a housing, a rolling axle, and a support structure that includes juxtaposed support elements capable of rolling around the axle, allowing the display to be unrolled partially or fully for a planar surface, featuring a flexible display panel or light elements supported by a spine-like structure, with magnetic and tension cable mechanisms for stability and deployment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a rigid fixed structure is used for display devices, then structural stability is improved, but adaptability is worsened

Engineering Contradiction:
Improvestructural stabilityVSAvoidadaptability
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The patent applies the dynamics principle by transforming the rigid fixed structure into a retractable support structure that can change its state between extended and retracted positions. The support structure includes elements that can move relative to each other, allowing the display device to adapt its size and shape while maintaining structural stability when deployed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The support structure is divided into multiple segmented elements that can move independently relative to each other. These segmented support elements allow the structure to flex and adapt to different configurations while maintaining overall structural integrity, resolving the contradiction between rigidity and adaptability.

Inventive Principle:
Principle #1Segmentation

2Area of stationary object

If a large screen display is provided, then display area is improved, but device size is worsened

Engineering Contradiction:
Improvedisplay areaVSAvoiddevice size
Core Design Contradiction:
Area of stationary objectVSVolume of stationary object

Solution Approach 1:

The patent applies the nesting principle by allowing the support structure elements to be stored within or alongside each other when retracted. The multiple support elements can be nested in a compact configuration within the housing, enabling a large display area when extended while minimizing device volume when stored.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The support structure utilizes dimensional transformation by extending elements along the vertical dimension when deployed to create a large display area, while retracting them into a compact horizontal configuration when stored, effectively moving between dimensional states to resolve the size-area contradiction.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If the display structure is made flexible and rollable, then adaptability is improved, but structural stability is worsened

Engineering Contradiction:
ImproveadaptabilityVSAvoidstructural stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent applies the flexible shells principle by using a flexible display panel that can be rolled and unrolled. The support structure provides a rigid framework that stabilizes the flexible display when deployed, while allowing it to be rolled up for storage, thus maintaining both flexibility and structural stability.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The retractable support structure acts as an intermediary between the flexible display panel and the rigid housing. It provides mechanical support and stability when the display is deployed, while enabling the flexible panel to be rolled up when retracted, mediating between the conflicting requirements of flexibility and structural stability.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enables adjustable display size, compact storage, and easy deployment as a large screen display, suitable for different environments and applications, while maintaining image quality and structural integrity.

Implementation Method 1

said support elements carry magnets on opposite upper and lower edges for straightening the support structure by magnetic forces when the support structure is deployed

Methodology Applied
Scientific EffectMagnetic forces: Magnetism

Implementation Method 2

the retractable display device includes a pullable tension cable going through the support elements for sticking the latter together when the support structure is deployed out of the housing

Methodology Applied
Scientific EffectTension: Tension

Data Source

PatentUS12112661B2Retractable display device
Publication Date: 2024.10.08 INTERDIGITAL MADISON PATENT HLDG
  • US12112661B2 patent drawing
  • US12112661B2 patent drawing
  • US12112661B2 patent drawing

AI summary

The disclosure relates to retractable display device (1) including a housing (3) having an internal space (31) defined therein, a rolling axle (32) positioned in the housing (3), an electronic display and a support structure (21) attached to a rear surface of the electronic display. The support structure (21) includes a plurality of juxtaposed support elements (210) capable of being rolled around the axle (32) with the electronic display in a storage position and of being unrolled upward, at least partially out of the housing (3), to provide a substantially planar front surface on which visual information may be displayed.