Rollable Display Switching Mechanism for Expandable Screen Control
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Solution Overview
Problem
There is a trade-off between the size of the display and the miniaturization of electronic devices, necessitating a solution that allows for a sufficient display size while maintaining portability.
Innovation Solution
A rollable electronic device with a housing that includes a first and second housing, a display that can be partially folded or unfolded, a motor unit, a gear assembly, a switching unit, and a sensor module to control the connection state between the gear housing, allowing for adjustable display size based on user input or environmental conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the display size is increased to provide sufficient area for multimedia services, then the display area is improved, but the device size and portability deteriorate
Solution Approach 1:
The patent implements a rollable display that can dynamically change its effective area by rolling up or unrolling, allowing the display to transition between compact and expanded states. This dynamic mechanism resolves the contradiction by providing large display area when needed while maintaining compact form factor for portability.
Solution Approach 2:
The rollable display is nested within the device housing, with the display panel capable of being rolled into a compact configuration inside the device body. This nesting approach allows the display to occupy minimal space when not in use while providing full display area when activated.
2Adaptability or versatility
If a rollable display mechanism is implemented to enable flexible display size adjustment, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The patent replaces complex mechanical rolling mechanisms with a flexible display panel that can be bent and folded along a predetermined line. This substitution reduces mechanical complexity while maintaining the ability to change display configuration.
Solution Approach 2:
The display is divided into multiple regions with different flexibility characteristics, allowing certain portions to be more flexible than others. This segmentation enables controlled folding and rolling behavior while simplifying the overall mechanical structure.
Data Source
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AI summary
According to an embodiment of the present disclosure, an electronic device may be provided. The electronic device may comprise: a housing comprising a first housing and a second housing for containing at least a part of the first housing and guiding sliding movements of the first housing; a display configured such that at least partially foldable sliding movements of the first housing; a motor portion disposed in the housing; a power transfer portion disposed in the housing, the power transfer portion comprising a gear assembly configured to receive at least a part of driving power generated by the motor portion and transferred thereto, and a gear housing configured to rotate together with at least a part of the gear assembly; a switching portion disposed in the housing and configured to control a rotation of the gear housing; a sensor module configured to sense at least one of the internal operating state of the electronic device, the state of external environments, or a user input provided to the electronic device; and a processor configured to adjust the state of connection between the switching portion and the gear housing on the basis of an input or a state sensed by the sensor module.