Sliding Display Support Structure for Rollable Screen Flatness
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Solution Overview
Problem
Electronic devices with roll structures face issues where the display protrudes during winding due to repulsive forces, leading to deformation and potential damage from friction with other structures during sliding.
Innovation Solution
The design includes a first and second cover, a display with adjustable exposed regions, a panel support with protrusions, and a rotation shaft that forms an attractive force to maintain flatness and prevent damage, utilizing a driving unit to control the sliding mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the display is wound in a roll structure, then the device achieves compactness and portability, but the repulsive force causes the display to protrude and deform
Solution Approach 1:
The patent introduces a rotation shaft that generates an attractive force to counterbalance the repulsive force of the wound display. This counteracting force prevents the display from protruding outward and maintains its flatness during the winding process, directly resolving the contradiction between compactness and display shape maintenance.
Solution Approach 2:
The rotation shaft acts as an intermediary component between the wound display and the housing. It provides a controlled interaction point where the attractive force is applied to the display's back surface, mediating the conflict between the display's natural repulsive force and the requirement for flatness during winding.
2Adaptability or versatility
If the display slides during expansion and contraction, then the device achieves flexibility in display size, but friction with other structures causes damage to the display
Solution Approach 1:
The rotation shaft serves as a protective intermediary between the sliding display and other internal structures. By positioning the display to slide along the rotation shaft rather than directly contacting other components, it reduces friction-induced damage while maintaining the adaptability of display size adjustment.
Solution Approach 2:
The patent replaces direct mechanical sliding contact with a guided sliding mechanism along the rotation shaft. This substitution reduces harmful friction by providing a controlled, low-friction interface while preserving the ability to adjust display size through sliding motion.
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
This solution effectively maintains the flatness of the display and prevents damage by canceling out repulsive forces and reducing friction, ensuring the display remains uniformly wound and protected during sliding.
Implementation Method 1
an attractive force may be formed between the portion of the rotation shaft and the portion of the panel support
Data Source
AI summary
An electronic device is provided. The electronic device includes a first cover, a second cover coupled to the first cover to slide, a display in which a size of an exposed region is changed corresponding to the sliding of the second cover, a panel support disposed on one side of a back surface of the display with respect to a front surface of the display on which a screen is displayed, and a rotation shaft contacting at least a portion of the panel support and rotating corresponding to the sliding of the second cover, and an attractive force may be formed between the portion of the rotation shaft and the portion of the panel support.