Hinge Expandable Mechanism for Flexible Display Stress Management

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Solution Overview

Problem

The existing flexible mobile terminal apparatuses with sliding mechanisms for flexible display panels face complications in configuration stability and risk of breakage due to excessive stress and tension when bending or folding, leading to unstable movement and potential breakage of the flexible display.

Innovation Solution

An information processing apparatus with a hinge system that includes a first and second rotation mechanism and an expandable mechanism, where the length of the expandable mechanism changes based on the orientation of the housings to distribute stress evenly, eliminating the need for sliding mechanisms and preventing breakage by adjusting the distance between the rotation mechanisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If upper end sliding member and lower end sliding member are provided on terminal apparatus body to allow flexible display panel to slide, then breakage of flexible display panel is prevented, but device complexity increases and unstable movement occurs

Engineering Contradiction:
Improveflexible display panel breakage preventionVSAvoidsliding mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts and removes the sliding mechanism (upper end sliding member and lower end sliding member) from the terminal apparatus body, eliminating the complex sliding mechanism while maintaining flexible display panel functionality through direct coupling of first and second housing portions

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent merges the functions of the sliding mechanism into the hinge structure by directly coupling the first housing portion and second housing portion through the hinge, integrating the movement function into the hinge itself rather than requiring separate sliding members

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If upper end sliding member and lower end sliding member are provided to prevent separation, then flexible display panel separation is prevented, but configuration becomes complicated

Engineering Contradiction:
Improveflexible display panel separation preventionVSAvoidconfiguration complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the separation prevention function with the hinge structure by directly coupling the first housing portion and second housing portion, eliminating the need for separate sliding members and simplifying the overall configuration

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If sliding mechanism is provided to allow flexible display panel movement, then bending flexibility is enabled, but unstable movement occurs

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

Solution Approach 1:

The patent integrates the movement function directly into the hinge structure, where the hinge itself enables the flexible display panel to move between bent and unbent states, providing stable and controlled movement without requiring separate sliding mechanisms

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS10588228B2Information processing apparatus
Publication Date: 2020.03.10 SHARP KK
  • US10588228B2 patent drawing
  • US10588228B2 patent drawing
  • US10588228B2 patent drawing

AI summary

A length of an expandable mechanism of a hinge in a case where a first face of a first housing and a second face of a second housing are disposed facing each other is longer than a length of the expandable mechanism of the hinge in a case where a back face of the first face of the first housing and a back face of the second face of the second housing are disposed facing each other.