Foldable Display Modules Hinged Rotary Wire Connection

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Solution Overview

Problem

Conventional mobile devices with single display screens face challenges in providing a larger screen area while maintaining a compact size for convenience in carrying and storage.

Innovation Solution

A foldable electronic device design featuring multiple modules connected by a hinge mechanism with rotary members and a wire for electrical connection, allowing the modules to rotate relative to each other, thereby increasing display area without increasing device size.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of moving object

If the display screen area is increased, then the viewing area is improved, but the device volume increases making it inconvenient to carry

Engineering Contradiction:
Improvedisplay screen areaVSAvoiddevice volume
Core Design Contradiction:
Area of moving objectVSVolume of moving object

Solution Approach 1:

The display system is divided into multiple independent display modules (first display module and second display module) that can be separated and folded. Each module contains its own display screen, allowing the total display area to be doubled while the physical footprint remains compact when folded.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The second display module is nested within or adjacent to the first display module in a folded configuration, similar to how nested dolls occupy the same space. When unfolded, the modules extend to provide larger display area, but when folded, they occupy minimal space for portable storage.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Area of moving object

If multiple display modules are added to increase screen area, then the display capability is improved, but the device structure becomes more complex

Engineering Contradiction:
Improvedisplay areaVSAvoidstructure complexity
Core Design Contradiction:
Area of moving objectVSDevice complexity

Solution Approach 1:

Multiple display modules are merged into a single integrated foldable structure that functions as one cohesive device. The modules share common structural elements, control systems, and power management, reducing overall complexity despite having multiple displays.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The foldable display structure serves multiple functions: it provides large display area when unfolded, compact portable form when folded, and can potentially support different viewing orientations. The same structural mechanism handles both the mechanical folding and the electrical connection between modules.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Volume of moving object

If display modules are made foldable for portability, then the device compactness is improved, but the electrical connection reliability may deteriorate

Engineering Contradiction:
Improvestorage volumeVSAvoidelectrical connection reliability
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

Flexible printed circuit boards or thin-film electrical connectors are used to replace rigid wiring between display modules. These flexible connections can bend and flex during folding operations while maintaining reliable electrical contact, solving the reliability issue inherent in foldable designs.

Inventive Principle:
Principle #30Flexible shells and thin films

Data Source

PatentUS11513567B2Electronic device
Publication Date: 2022.11.29 ACER INC
  • US11513567B2 patent drawing
  • US11513567B2 patent drawing
  • US11513567B2 patent drawing

AI summary

An electronic device is provided, including a first module, a second module, a hinge member, a first rotary member, a second rotary member, and a wire. The first module and the second module are hinged to the hinge member. The first rotary member and the second rotary member are connected to the hinge member and rotatable around a first axis and a second axis relative to the hinge member, respectively. The wire extends through the first rotary member and the second rotary member to electrically connect the first module and the second module.