Movable Support Frame for Adjustable Foldable Display Area

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Solution Overview

Problem

Mobile terminal devices with fixed display screens fail to meet diverse user needs for varying screen sizes during different tasks.

Innovation Solution

A support structural member with a movable support frame and power assembly that adjusts the display area by protruding or retracting a second support body, accompanied by a screen body connector, to unfold or fold a flexible screen, allowing adjustable display size.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the display screen size is fixed, then the device structure is simple, but the device cannot meet diverse user needs for varying screen sizes

Engineering Contradiction:
Improveadaptability to different use scenariosVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The support frame is designed with a movable second support body that can protrude or retract relative to the first support body, enabling dynamic adjustment of the display screen size. The power assembly drives this movement, transforming the static structure into a dynamic one that adapts to different usage scenarios while maintaining reasonable structural complexity through integrated design.

Inventive Principle:
Principle #15Dynamics

2Area of stationary object

If the flexible screen is unfolded to increase display area, then the display size increases, but the screen becomes more vulnerable to impact forces

Engineering Contradiction:
Improvedisplay areaVSAvoidscreen damage risk
Core Design Contradiction:
Area of stationary objectVSReliability

Solution Approach 1:

The support frame structure is designed to provide protective support for the flexible screen. When the second support body protrudes, it creates a buffered support structure that reduces the direct impact on the screen. The power assembly and support frame work together to provide beforehand cushioning, reducing the risk of screen damage from impact forces while maintaining an increased display area.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Adaptability or versatility

If the support frame is made movable to adjust display area, then the adaptability improves, but the device complexity increases

Engineering Contradiction:
Improveadjustable display areaVSAvoidsupport frame complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The power assembly is integrated with the support frame structure, merging the driving mechanism with the support structure. The first support body and second support body are combined into a unified movable support frame system, reducing the number of separate components. This merging approach enables adjustable display area while controlling the increase in device complexity through integrated design.

Inventive Principle:
Principle #5Merging (Combining)

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 flexible screen devices to adapt to different use scenarios by freely adjusting the display area, enhancing user satisfaction and reducing the risk of screen damage from impact forces.

Implementation Method 1

a first threaded rod rotatably connected to the second support body and threadly connected with the first support body, when the first threaded rod rotates, the first threaded rod and the second support body move synchronously relative to the first support body in the first direction

Methodology Applied
Scientific EffectThread engagement: Screw

Implementation Method 2

the power assembly driving the second support body to protrude or retract relative to the first support body, and enabling the screen body connector and the second support body to move simultaneously in the first direction

Methodology Applied
Scientific EffectMechanical drive: Mechanical Force

Data Source

PatentEP4199484B1Support structural member and display device
Publication Date: 2026.03.25 KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
  • EP4199484B1 patent drawingFigure 1~2
  • EP4199484B1 patent drawingFigure 3
  • EP4199484B1 patent drawingFigure 4~5

AI summary

This disclosure relates to a support structural member and a display device. The support structural member is used for the display device. The support structural member comprises a support frame, a screen body fixing member, a screen body connector and a power assembly. The support frame comprises a first support body and a second support body. The second support body is movably connected to the first support body in a first direction. The screen body fixing member is disposed on a side of the screen body support surface of the support frame, and is connected to the first support body. The screen body connector is disposed on the support frame and is configured to guide a screen body to be unfolded or folded. The screen body connector is movably connected to the second support body. The power assembly is disposed on a side of an inner surface of the support frame, the second support body and the screen body connector are both connected to the power assembly, and the power assembly drives the second support body to protrude or retract relative to the first support body, and enables the screen body connector and the second support body to move simultaneously in the first direction. The support structural member according to this disclosure can change the size of a display area and to meet the daily needs of people.