Foldable Handheld Device Stereoscopic Display Segmentation

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Solution Overview

Problem

Hand-held electronic devices with stereoscopic display sections have poor viewability when used with naked eyes due to a single housing design, which limits the suitable viewing angle and makes the screen prone to contamination.

Innovation Solution

A hand-held electronic device with a foldable design featuring a first housing for stereoscopic display and a second housing for operation, where the first housing includes a stereoscopic display section and parallax adjusting operation, and the second housing has a shutter button and touch panel, reducing the likelihood of contamination and improving viewing angles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single housing design is used for hand-held electronic devices with stereoscopic display, then the device structure is simple, but the viewability in stereoscopic viewing with naked eyes deteriorates

Engineering Contradiction:
Improvedevice structureVSAvoidviewability in stereoscopic viewing
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The device is divided into two separate housings: a first housing containing the stereoscopic display section and a second housing containing operation sections. This segmentation allows the display housing to be optimized for viewing angles and the operation housing to provide ergonomic controls, resolving the contradiction between structural simplicity and viewing quality.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the stereoscopic display section is provided with operation sections, then the operation functionality is integrated, but the screen is prone to contamination from user touching

Engineering Contradiction:
Improveoperation functionalityVSAvoidscreen contamination
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

Operation sections are relocated to the second housing, physically separating the display area from the control area. This prevents users' fingers from directly touching the stereoscopic display screen during operation, eliminating fingerprint contamination while maintaining full operational functionality through the second housing's controls.

Inventive Principle:
Principle #1Segmentation

3Volume of moving object

If the viewing angle of stereoscopic display is limited, then the display structure is compact, but the viewability deteriorates

Engineering Contradiction:
Improvedisplay structure compactnessVSAvoidviewability
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The solution moves the operation sections to a different spatial dimension by placing them in a separate second housing rather than on the display housing. This allows the first housing to maintain a compact form factor optimized for stereoscopic viewing while the second housing provides accessible controls, effectively adding a dimensional separation between display and operation functions.

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

Data Source

PatentEP2391138B1Hand-held electronic device
Publication Date: 2021.05.26 NINTENDO CO LTD
  • EP2391138B1 patent drawingFigure 1
  • EP2391138B1 patent drawingFigure 2
  • EP2391138B1 patent drawingFigure 3A~3D

AI summary

A hand-held electronic device (10) includes an upper housing (21) and a lower housing (11) which are foldable. An upper LCD (22) capable of displaying an image which is stereoscopically visible with naked eyes is provided on an inner side surface of the upper housing (21).