Flexible Display Device with Rotating Support Plates

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Solution Overview

Problem

Flexible display devices with variable screens are prone to damage when users touch, push, or press the screen, as existing support structures fail to maintain the screen shape effectively.

Innovation Solution

A display device with a base portion, a first support plate slidably coupled to the base, a second support plate hinge-combined for vertical rotation, and an elastic member providing upward force to maintain the screen shape, preventing damage from user interactions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a flexible display device has a variable screen that can be expanded, then the adaptability of the display device is improved, but the screen may be damaged when users touch, push, or press it

Engineering Contradiction:
Improvevariable screen expansionVSAvoidscreen damage prevention
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent employs dynamic support plates that can rotate and adjust their position automatically in response to user interaction. The first support plate rotates around a first axis, and the second support plate rotates around a second axis, allowing the support structure to adapt dynamically to maintain screen shape during expansion and prevent damage during touch operations

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent introduces an elastic member as an intermediary element between the support plates and the display module. This elastic member provides cushioning force to prevent direct contact and potential damage between the rigid support structure and the flexible display module during user interaction

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If a support structure is added to maintain screen shape during expansion, then the screen shape stability is improved, but the device complexity increases

Engineering Contradiction:
Improvescreen shape maintenanceVSAvoidsupport structure complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent divides the support structure into multiple independent support plates (first support plate and second support plate) that can rotate independently around different axes. This segmentation allows each plate to perform a specific function in maintaining screen shape during expansion, reducing the complexity of any single component while achieving overall stability

Inventive Principle:
Principle #1Segmentation

3Reliability

If rigid support plates are used to prevent screen damage, then the protection capability is improved, but the flexibility of the display device is reduced

Engineering Contradiction:
Improvescreen protectionVSAvoiddisplay flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent makes the support plates dynamic rather than fixed, allowing them to rotate around axes and adjust their position. This dynamic capability enables the rigid support plates to adapt to the flexible nature of the display module during expansion while maintaining protection capability during static states

Inventive Principle:
Principle #15Dynamics

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

The solution effectively maintains the screen shape during expansion and prevents damage from user touch operations by using a combination of sliding and rotating support plates with elastic members, ensuring the display module is securely supported.

Implementation Method 1

an elastic member between the base portion and the second support plate, and configured to provide an elastic force to rotate the second support plate upward with movement of the first support plate

Methodology Applied
Scientific EffectElastic force: Elasticity

Data Source

PatentUS10079270B2Flexible display device
Publication Date: 2018.09.18 SAMSUNG DISPLAY CO LTD
  • US10079270B2 patent drawing
  • US10079270B2 patent drawing
  • US10079270B2 patent drawing

AI summary

A display device according to an exemplary embodiment includes a base portion, a first support plate slidably coupled to the base portion, and configured to support a display module, a second support plate below the first support plate and hinge-combined to the base portion to be vertically rotatable with movement of the first support plate, and configured to support the display module, and an elastic member between the base portion and the second support plate, and configured to provide an elastic force to rotate the second support plate upward with movement of the first support plate.