Multi-Directional Rollable Display Structure for Expandable Screens
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Solution Overview
Problem
Traditional electronic apparatus displays cannot be extended in multiple directions, limiting the size flexibility of the device as larger screens are desired by users.
Innovation Solution
An electronic apparatus with a first and second display, where the second display can be extended in multiple directions through the use of first and second rollers, each movable in different directions, and controlled by driving devices and sensors to accommodate user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible display is folded and wrapped around a roller, then the display can be extended in one direction, but the display cannot be extended in multiple directions
Solution Approach 1:
The display is divided into multiple flexible display regions (first, second, third, and fourth regions) that can be independently controlled by separate rollers. Each roller manages a specific region, allowing the display to be extended in multiple directions (horizontal, vertical, diagonal) simultaneously. This segmentation enables multi-directional extension capability while maintaining manageable complexity through modular control.
2Area of moving object
If the display area is increased, then users get larger screens, but the size of the electronic apparatus must increase
Solution Approach 1:
The display transitions from a static fixed-size configuration to a dynamic reconfigurable system. The flexible display regions can be extended or retracted by the rollers, allowing the display area to change based on user needs. When extended, the display provides a larger screen area; when retracted, the apparatus maintains a compact form factor, thus decoupling display area from apparatus size.
3Adaptability or versatility
If multiple rollers are used to enable multi-directional extension, then the display can be extended in multiple directions, but the device complexity increases
Solution Approach 1:
Each roller is designed to perform multiple functions: it can extend and retract its associated flexible display region, it can be controlled by dedicated motors (third and fourth motors) for precise positioning, and it can work in coordination with other rollers to achieve diagonal extension. This multi-functionality allows the roller system to achieve complex multi-directional extension capabilities while maintaining a relatively simple modular structure.
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 solution allows the display area to be extended vertically, horizontally, or diagonally, providing enhanced size flexibility and stability without damaging the flexible display.
Implementation Method 1
a first roller configured to wind or unwind the first region and movable along the first direction; and a second roller configured to wind or unwind the second region and movable along the second direction
Data Source
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AI summary
An electronic device is disclosed. The electronic device comprises: a first display which includes a first side surface arranged in a first direction and a second side surface arranged in a second direction perpendicular to the first direction; a second display which is flexible, is disposed behind the first display, and includes a main area, a first area extending from the main area toward the first side surface, and a second area extending from the main area toward the second side surface; a first roller on or from which the first area is wound or unwound and which is movable in the first direction; and a second roller on or from which the second area is wound or unwound and which is movable in the second direction, wherein the first roller moves in the first direction in association with a rolling operation of the second roller, and the second roller moves in the second direction in association with a rolling operation of the first roller.