Rotatable Display and Keyboard Mechanism for Ergonomic Handheld Interface
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Solution Overview
Problem
Traditional user interfaces in handheld electronic devices are unsatisfactory for performing advanced functionalities such as sending and receiving emails and browsing the internet, as they were originally designed for voice and text transmission, leading to difficulties in user interaction and navigation.
Innovation Solution
The handheld electronic device transitions between compact, translated, and expanded configurations, featuring a trackball for navigational control and a rotatable display and keyboard arrangement that allows for ergonomic positioning, enhancing user interaction and functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional user interfaces are used in handheld devices, then voice and text transmission functions are maintained, but user interaction for advanced functionalities such as email and internet browsing becomes difficult
Solution Approach 1:
The device employs a rotatable display assembly that can dynamically change between portrait and landscape orientations, allowing the user interface to adapt to different operational modes. This dynamic reconfiguration enables sophisticated functionalities like email and internet browsing by providing an expanded viewing area while maintaining ease of operation through intuitive rotational transitions
2Volume of moving object
If the device is made compact, then portability is improved, but access to advanced functionalities and ergonomic positioning becomes limited
Solution Approach 1:
The display assembly is nested within the keyboard assembly, allowing the device to maintain a compact form factor when closed. The display can be rotated outward to access advanced functionalities, creating a nested structure that provides both compact portability and expanded functionality when needed
3Device complexity
If the display and keyboard are fixed in position, then device structure is simplified, but ergonomic positioning and user comfort are reduced
Solution Approach 1:
The display assembly is designed to rotate relative to the keyboard assembly around a hinge axis, transforming the fixed structure into a dynamic one. This rotational capability allows the display to be positioned at different angles for ergonomic comfort during various tasks while maintaining relatively simple mechanical implementation through a hinge mechanism
Data Source
AI summary
A handheld electronic device transitionable between different configurations includes a keyboard panel having a slot, a display panel, a coupler that rotary couples the keyboard panel and the display panel and slidingly engages the slot of the keyboard panel. The display panel is positioned such that is substantially parallel with the keyboard panel in a compact configuration. When the device is transitioned from the compact to translated configuration, the coupler engages the slot. When the device is transitioned from the translated to expanded configuration, the display panel is rotated about the coupler such that the centerpoint of the display panel is closer to the centerpoint of the keyboard panel in the expanded configuration as compared to the translated configuration. The coupler can comprise a rotation control mechanism coupled to a biasing member or can have teeth that engages a track or can be a cam that engages a t-shaped slot.