Flexible Display Unfolding Mechanism for Compact Communication Devices
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Solution Overview
Problem
Conventional folder-type portable communication devices have limited display space, causing visual inconvenience when viewing moving pictures in multimedia modes due to their fixed small screens, which cannot be easily expanded without compromising miniaturization.
Innovation Solution
A portable communication device with a flexible display unit that unfolds from a main housing using a dual-axis hinge mechanism, allowing the screen to expand and provide a wider display area while maintaining compactness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the display unit size is increased to provide a wider display screen, then the visual experience for multimedia applications is improved, but the device size increases compromising miniaturization
Solution Approach 1:
The display unit is made dynamically extendable through a rolling mechanism. The display unit can be extended when needed for multimedia applications and retracted when not in use, transforming the display area from a static fixed value to a dynamic variable that adapts to user needs. This allows the device to maintain a compact form factor while providing large display capability when required.
Solution Approach 2:
The display unit is rolled up and stored within the device housing when not in use, similar to a nested doll structure. The extended display unit fits within the compact device dimensions, allowing the large display area to be contained within a small volume. This nesting approach enables the device to switch between compact storage mode and expanded display mode.
2Volume of moving object
If a fixed small display unit is mounted in the main body housing, then the device maintains compact size, but visual inconvenience occurs when viewing moving pictures in multimedia modes
Solution Approach 1:
The display unit transitions from a static fixed size to a dynamic extendable size. Users can extend the display unit when viewing multimedia content to improve visual comfort, and retract it when compactness is prioritized. This dynamic adjustment allows the device to adapt to different usage scenarios, providing visual comfort when needed while maintaining compactness otherwise.
Solution Approach 2:
The display area parameter is changed from a fixed value to a variable value that can be adjusted based on usage requirements. The rolling mechanism enables continuous or discrete changes in display area, allowing optimization of visual comfort for multimedia applications while maintaining compact dimensions for portability. This parameter change resolves the contradiction between fixed small size and visual comfort.
Data Source
AI summary
A portable communication device includes a main housing, a folding housing coupled to the main housing by a hinge unit to rotate about a hinge axis, and a flexible display unit that is drawn out from the main housing to open its display screen when the folding housing unfolds.