Folding Electronic Device Linkage for Landscape Orientation
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Solution Overview
Problem
Portable folding electronic devices with a long and narrow screen configuration can make reading difficult for some users due to the rectangular shape and hinge placement, which limits screen orientation and usability.
Innovation Solution
A portable folding electronic device design featuring a linkage system that provides two degrees of freedom, allowing the screen unit to be folded onto the base, tilted, and adjusted to a landscape orientation, enabling easier reading and potentially a tablet-type configuration for improved usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the screen unit is folded onto the base with the hinge at the short side, then the device has a compact closed configuration, but the screen becomes long and narrow making reading difficult
Solution Approach 1:
The patent applies a linkage mechanism that provides two degrees of freedom, allowing the screen unit to be positioned in multiple orientations including folded, tilted, and landscape configurations. This dynamic positioning system enables the screen to transition from a fixed long-narrow orientation to adjustable orientations that improve readability while maintaining compactness when folded.
Solution Approach 2:
The invention introduces an additional degree of freedom by allowing the screen unit to rotate and tilt relative to the base, not just fold flat. This dimensional change enables the screen to be oriented in landscape mode or at various angles, transforming the single-axis folding motion into multi-axis movement that solves the readability problem.
2Shape
If the screen unit is made long and narrow to fit the rectangular device shape, then the device maintains a simple rectangular form factor, but user reading comfort deteriorates
Solution Approach 1:
The linkage mechanism enables the screen to dynamically change its effective viewing orientation from portrait (long and narrow) to landscape (wider) without changing the physical device shape. This dynamic reorientation allows the device to maintain its simple rectangular form factor while providing comfortable reading experiences through adjustable screen positioning.
3Device complexity
If a fixed hinge configuration is used, then the device structure is simple, but screen orientation flexibility is limited
Solution Approach 1:
The patent implements a dynamic linkage system with two degrees of freedom that allows the screen unit to achieve multiple orientations (folded, tilted, landscape) through controlled mechanical movement. This dynamic approach provides screen orientation flexibility while maintaining a relatively simple hinge structure compared to multiple independent hinges or complex mounting systems.
Solution Approach 2:
The linkage mechanism serves multiple functions: it allows the screen to fold flat for compact storage, tilt for viewing angle adjustment, and rotate to landscape orientation for reading. This single multi-functional mechanism replaces what would otherwise require multiple separate hinge systems, achieving versatility without proportionally increasing complexity.
Data Source
AI summary
A portable folding electronic device has a base with a longer length dimension and a shorter width dimension and a user interface on one surface. The user interface may be oriented for use when the base has a portrait orientation. The device also has a screen unit with a longer length dimension and a shorter width dimension and a screen on one surface. A linkage connects the base to the screen unit. The linkage provides at least two degrees of freedom between the base and the screen unit such that the screen unit may be moved to a first position folded onto the base, with the length dimension of said screen unit aligned with the length dimension of the base, and to a second position tilted with respect to the base, with the length dimension of the screen unit aligned with the width dimension of the base.