Sliding Rail Flexible Screen Assembly for Compact Expandable Displays
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Solution Overview
Problem
Foldable screens with varying display sizes are bulky and fail to meet user experience requirements for miniaturization, as they do not efficiently accommodate different screen sizes, and are cumbersome for users to carry.
Innovation Solution
An electronic device with a housing assembly, sliding rail assembly, and elastic telescopic assembly that allows the flexible screen to extend and retract, enabling users to conveniently switch between screen sizes, with a driving assembly for automatic extension and retraction, and a supporting plate assembly to maintain screen flatness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a foldable screen is used to provide display in different sizes, then screen adaptability is improved, but device volume increases and miniaturization capability deteriorates
Solution Approach 1:
The flexible screen is divided into a fixed portion and a movable telescopic portion, allowing the screen to be segmented into different functional zones that can be independently positioned to achieve various display configurations without requiring the entire device to expand
Solution Approach 2:
The telescopic portion of the flexible screen is stored within the device housing when not in use, similar to a nested doll structure, allowing the extended screen area to be compacted into a small volume within the device body, thus achieving large screen capability without increasing device volume
2Area of stationary object
If screen capacity is increased to provide larger display area, then display capability is improved, but device weight increases
Solution Approach 1:
The flexible screen transitions from a static fixed-size display to a dynamic adjustable display where the telescopic portion can be extended or retracted as needed, allowing the device to provide large screen area only when required, thus avoiding the permanent weight penalty of a always-large display structure
3Adaptability or versatility
If a telescopic mechanism is added to enable screen extension, then screen size adaptability is improved, but device complexity increases
Solution Approach 1:
The flexible screen itself serves as the telescopic mechanism, utilizing the inherent flexibility and stretchability of the thin film display material to achieve extension and retraction, thereby eliminating the need for complex mechanical telescopic structures while maintaining screen size adaptability
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
The device provides a compact form factor with improved user experience by allowing flexible screen size adjustments, reducing weight and making it easier to carry compared to traditional foldable screens, while maintaining a stable and flat display during use.
Implementation Method 1
the elastic telescopic assembly being stressed by the telescopic end to extend and retract
Data Source
AI summary
An electronic device includes a housing assembly, a sliding rail assembly, an elastic telescopic assembly and a flexible screen. The sliding rail assembly is assembled to the housing assembly and includes a sliding rail including opposite front and rear surfaces. The elastic telescopic assembly is located at the rear surface of the sliding rail and assembled to the housing assembly. The flexible screen has a part thereof provided at the front surface of the sliding rail and fixed to the housing assembly, and includes a telescopic end extending around an edge of the sliding rail to the rear surface of the sliding rail and coupled to the elastic telescopic assembly stressed by the telescopic end to extend and retract, and the sliding rail is slidable outwards from the housing assembly to extend the flexible screen and slidable towards the housing assembly from an outside to retract the flexible screen.