Retractable Display Mechanism for Compact Portable Devices
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Solution Overview
Problem
Portable electronic devices lack efficient and convenient deployable display solutions that can expand their output interface while maintaining a compact retracted configuration.
Innovation Solution
A retractable display apparatus comprising a retraction assembly and a display assembly, where the display assembly includes a flexible deployable display attached to a reinforce sheet, electronically coupled to a PCB, and driven by a rotary member and driving assembly that accumulates potential energy for extension and retraction, facilitated by magnets and latching mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If a deployable display is added to expand the output interface, then the display area and user interaction capability are improved, but the device complexity and structural compactness deteriorate
Solution Approach 1:
The flexible display is rolled into a compact cylindrical shape and stored within a cavity in the housing when not in use. The retraction assembly houses the rolled display along with the rotary member and driving assembly, creating a nested structure that minimizes space occupation while maintaining full display functionality when extended.
Solution Approach 2:
The display transitions between two dynamic states: extended for full display functionality and retracted for compact storage. The rotary member enables smooth rotation to extend or retract the display, while the latching member provides stable locking in both extended and retracted positions, allowing the system to adapt between different operational modes.
2Reliability
If a retractable mechanism with latching and energy accumulation components is added, then the display deployment reliability is improved, but the device complexity increases
Solution Approach 1:
The driving assembly, including the spring component, is pre-loaded and positioned within the rotary member before deployment is needed. The latching member is pre-configured in the retraction assembly to automatically engage with the rotary member. This preliminary preparation ensures that when the user activates the display, the extension action is immediate and reliable without requiring complex real-time control systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient and convenient extension and retraction of the display, providing a human-machine interface while maintaining a compact form factor, enhancing user interaction and device appeal.
Implementation Method 1
the urging member (172) fixed to the rotary member (15). As the rotary member (15) rotates, the urging member (172) twists to accumulate potential energy
Implementation Method 2
at least one magnet (250) mounted on a side of the holding plate (220) to attract the retractable display apparatus
Data Source
AI summary
A retractable display apparatus includes a display assembly and a retraction assembly. The retraction assembly includes an accommodation assembly, a rotary member, a driving assembly, and a latching member. The rotary member is received in the accommodation assembly and is coupled to the display assembly. The driving assembly is rotatably received in the rotary member, fixed to the rotary member and secured by the accommodation assembly. The latching member detachably latches the rotary member onto the accommodation assembly. The rotary member drives the driving assembly to rotate, and the driving assembly accumulates potential energy for reversely rotating the rotary member, for extending or rolling the display assembly.