Foldable Display Support Bracket for Inward and Outward Bending

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Solution Overview

Problem

Flexible display screens in foldable devices cannot be bent inward and outward due to the need for terminal mechanisms to be shortened or lengthened based on the screen's position, preventing bidirectional bending.

Innovation Solution

A screen body support device with a movable bracket and a fixing bracket, driven by a power mechanism and swing driving mechanism, allowing the flexible display screen to bend in two opposite directions by using a crank-rocker mechanism and gear component to change the angle of the movable bracket relative to the fixing bracket.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the terminal mechanism is shortened or lengthened based on screen position, then the screen can be bent in one direction, but the screen cannot be bent in both inward and outward directions

Engineering Contradiction:
Improvebending direction capabilityVSAvoidterminal mechanism structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The bracket is divided into two separate parts: a fixed bracket and a movable bracket. The fixed bracket remains stationary while the movable bracket can swing relative to it, enabling bidirectional bending capability without requiring complex adjustment of the entire terminal mechanism.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The movable bracket is designed to swing between two positions (first position for inward bending, second position for outward bending) relative to the fixed bracket. This dynamic structure allows the terminal mechanism to adapt to different bending directions without changing its overall configuration.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If a movable bracket with swing driving mechanism is added to enable bidirectional bending, then bending flexibility is improved, but the device structure becomes more complex

Engineering Contradiction:
Improvebidirectional bending capabilityVSAvoidbracket and driving mechanism structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The driving mechanism is segmented into a power mechanism and a swing driving mechanism. The power mechanism provides rotational motion while the swing driving mechanism converts this rotation into the swinging motion of the movable bracket, distributing the functional requirements across separate components.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The swing driving mechanism acts as an intermediary between the power mechanism and the movable bracket. It receives rotational input from the power mechanism and transforms it into the desired swinging motion of the movable bracket, enabling bidirectional bending with a modular architecture.

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 the flexible display screen to be bent inward and outward, achieving bidirectional flexibility and adjustable maximum bending angles through the transmission ratio of the gear components, enhancing the usability of foldable flexible display devices.

Implementation Method 1

the power mechanism includes a drive motor, the drive motor is rotatably connected to one end of the swing driving mechanism, and the drive motor is configured to provide power for the swing driving mechanism

Methodology Applied
Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Implementation Method 2

the driving mechanism includes a crank-rocker mechanism. One end of the crank-rocker mechanism is rotatably connected with the power mechanism, and another end of the crank-rocker mechanism is rotatably connected with the transmission mechanism

Methodology Applied
Scientific EffectMechanical linkage: Four-Bar Linkage

Implementation Method 3

the transmission mechanism includes a gear component. One end of the gear component is rotatably connected with another end of the driving mechanism, and another end of the gear component is fixedly connected with the movable bracket

Methodology Applied
Scientific EffectGear transmission: Gear

Data Source

PatentUS11937388B2Screen body support device and foldable flexible display device
Publication Date: 2024.03.19 YUNGU GUAN TECH CO LTD
  • US11937388B2 patent drawing
  • US11937388B2 patent drawing
  • US11937388B2 patent drawing

AI summary

Embodiments of the present application provide a screen body support device, including: a fixing bracket; a movable bracket being rotatably connected with the fixing bracket, in which the movable bracket and the fixing bracket are provided in a non-display area of a flexible display screen; and a driving component being fixedly connected with the movable bracket, in which the driving component is configured to drive the movable bracket to swing in two opposite directions with respect to the fixing bracket, so that the flexible display screen is bent in two opposite directions respectively.