Foldable Display Plate Hinge Segmentation

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing foldable display devices face challenges in maintaining a minimum separation distance between members separated by a folding area while maintaining a small thickness, which affects the device's structural integrity and usability.

Innovation Solution

The display device incorporates a display panel with a first and second digitizer layer, each separated by a folding area, and plate members with hinge portions to connect plate portions, allowing for rotational connection and minimizing thickness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If members are separated from each other based on a folding area to reduce bending stress, then reliability is improved, but device thickness increases

Engineering Contradiction:
Improvestructural integrityVSAvoiddevice thickness
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The first and second plate members are disposed to overlap each other in a thickness direction when the display device is folded, with the first plate member positioned between the second plate member and the display panel. This nesting arrangement allows multiple structural components to occupy the same spatial envelope, reducing the overall device thickness while maintaining the separation distance needed for structural integrity during folding operations.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Reliability

If a minimum separation distance is maintained between separated members, then reliability is improved, but device complexity increases

Engineering Contradiction:
Improvestructural integrityVSAvoidstructural complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The plate members are divided into multiple plate portions connected by hinge portions, allowing the structure to be segmented into functional units that can independently manage stress during folding. This segmentation enables the maintenance of minimum separation distances between critical components while distributing structural complexity across modular elements rather than requiring a monolithic complex structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The first plate member acts as an intermediary component disposed between the display panel and the second plate member. This intermediate structure facilitates the transmission and distribution of forces during folding operations, enabling the maintenance of necessary separation distances between the display panel and outer casing while simplifying the overall structural arrangement through a clear hierarchical organization.

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

This configuration reduces bending stress and torque during folding, enabling a minimum separation distance between members while maintaining a small thickness, thus enhancing the structural integrity and usability of the foldable display device.

Implementation Method 1

one or more hinge portions configured to rotatably connect the plurality of plate portions to each other

Methodology Applied
Scientific EffectRotation:

Implementation Method 2

reduces bending stress and torque during folding

Methodology Applied
Scientific EffectStress reduction:

Data Source

PatentUS12210384B2Display device
Publication Date: 2025.01.28 SAMSUNG DISPLAY CO LTD
  • US12210384B2 patent drawing
  • US12210384B2 patent drawing
  • US12210384B2 patent drawing

AI summary

A display device includes a display panel; a first digitizer layer disposed on the display panel; a second digitizer layer disposed on the display panel and separated from the first digitizer layer; a first plate member disposed on the first digitizer layer; and a second plate member disposed on the second digitizer layer, wherein each of the first plate member and the second plate member includes a plurality of plate portions and one or more hinge portions configured to rotatably connect the plurality of plate portions to each other.