Rotatable Dual Display With Sliding Input For Compact Portability

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Solution Overview

Problem

Portable display devices lack enhanced portability and usability due to fixed screen sizes, limiting their ability to expand for better viewing experiences while maintaining compactness.

Innovation Solution

A portable display device featuring an extendable display unit with a first and second display portion connected by a rotatable connection portion, allowing the device to fold and unfold, and an input unit that slides in and out, enabling the formation of an expanded display portion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the display device uses a fixed screen size, then the device structure remains simple and compact, but the viewing experience and usability are limited

Engineering Contradiction:
Improvedisplay size adaptabilityVSAvoiddevice structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The display device is divided into multiple independent display portions (first display portion and second display portion) that can be separated or connected. Each display portion can function independently or be combined to form a larger display area, enabling flexible adaptation to different usage scenarios without requiring a completely different device structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connection portion enables the display portions to dynamically change their relative positions and configurations. The display device can transition between a compact folded state for portability and an expanded state for enhanced viewing, allowing the structure to adapt dynamically to different user needs while maintaining a relatively simple base design.

Inventive Principle:
Principle #15Dynamics

2Area of moving object

If the display device expands to larger screen size, then the viewing experience is enhanced, but the portability and compactness are compromised

Engineering Contradiction:
Improvedisplay areaVSAvoiddevice portability
Core Design Contradiction:
Area of moving objectVSWeight of moving object

Solution Approach 1:

The display portions are designed to nest within each other when folded, with the second display portion positioned to fit alongside or within the spatial envelope of the first display portion. This nesting arrangement allows the device to achieve a compact form factor for portable storage while maintaining the capability to expand to a larger display area when unfolded, effectively resolving the contradiction between display area and portability.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Volume of moving object

If the display device uses a compact form factor, then the device is highly portable, but the display area is limited

Engineering Contradiction:
Improvedevice volumeVSAvoiddisplay area
Core Design Contradiction:
Volume of moving objectVSArea of moving object

Solution Approach 1:

The display device utilizes spatial reconfiguration by folding the display portions along a connection axis, effectively using the third dimension (depth/folding dimension) to pack a larger total display area into a smaller volume. When folded, the display portions occupy reduced spatial volume for portability; when unfolded, they expand in the lateral dimensions to provide a larger display area, resolving the volume-display area contradiction through dimensional transformation.

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

Data Source

PatentUS9651987B2Portable display device
Publication Date: 2017.05.16 SAMSUNG DISPLAY CO LTD
  • US9651987B2 patent drawing
  • US9651987B2 patent drawing
  • US9651987B2 patent drawing

AI summary

A portable display device may include a display unit configured to display an image, the display unit including: a first display portion configured to display an image; a second display portion configured to display an image, the second display portion disposed spaced apart from the first display portion; and a connection portion configured to connect to the first display portion and the second display portion to each other; and an input unit configured to slide into and out from the display unit, wherein one of the first display portion and the second display portion is configured to rotate around the connection portion, and the first display portion and the second display portion configured to form an expanded display portion.