Foldable Display Hinge with Moving Support Plate for Bend Clearance

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Solution Overview

Problem

Flexible displays in inward-folding devices are prone to damage due to cramped bent portions when folded, as existing hinge devices fail to adequately manage the space and support the display effectively.

Innovation Solution

A hinge device with a base member, rotating modules, and a central support plate that moves between supporting and receding positions, providing a display receiving space to alleviate pressure on the bent portions of the flexible display when folded.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the flexible display is folded in inward-folding devices, then the device can be compacted, but the bent portions of the flexible display are cramped and easily damaged

Engineering Contradiction:
Improvedevice compactnessVSAvoidflexible display durability
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The support plate is designed to dynamically change its position and function based on the folding state. When the device is folded, the support plate moves to provide a display receiving space that accommodates the bent portion of the flexible display, preventing it from being cramped. When unfolded, the support plate returns to its original position to support the display from below, ensuring the display remains stable and protected throughout the folding motion.

Inventive Principle:
Principle #15Dynamics

2Volume of stationary object

If the bent portion of the flexible display is accommodated in limited space, then the device structure is compact, but the bent portion is easily damaged

Engineering Contradiction:
Improvefolding spaceVSAvoiddamage risk to bent portion
Core Design Contradiction:
Volume of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The support plate moves in the vertical dimension (up and down) to create additional space for accommodating the bent portion of the flexible display during folding. By utilizing the vertical dimension rather than expanding horizontal space, the design achieves adequate accommodation space while maintaining overall device compactness. The support plate transitions from a static support surface to a dynamic space-creating element that moves to meet the display's needs during folding operations.

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

Data Source

PatentUS11412629B2Hinge device
Publication Date: 2022.08.09 FIRST DOME
  • US11412629B2 patent drawing
  • US11412629B2 patent drawing
  • US11412629B2 patent drawing

AI summary

A hinge device is adapted to be installed between two machine bodies that are mounted with a flexible display. The hinge device includes a base member, two rotating modules mounted respectively to opposite sides of the base member and adapted for the machine bodies to be mounted respectively thereto, and a central support plate disposed above the base member and connected between the rotating modules. The central support plate is drivable by the rotating modules to move relative to the base member from a supporting position, where the flexible display is flat and is supported thereby from below, to a receding position, where a display receiving space is provided for receiving a bent portion of the flexible display.