Rollable Display Button Structure for Compact Expandable Devices
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Solution Overview
Problem
Existing electronic devices face a challenge in balancing display size with compact design, especially as they require larger displays for multimedia services while maintaining portability.
Innovation Solution
The electronic device incorporates a rollable display and a button structure with a sensor module and coils, allowing the second housing to move relative to the first housing, enabling the display to be unrolled or rolled based on this movement, and simplifying the button structure's mounting and wiring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a larger display is used to provide satisfactory multimedia services, then the display area is improved, but the device size increases and portability deteriorates
Solution Approach 1:
The display transitions from a static fixed size to a dynamic variable size through the rolling mechanism. The second housing moves relative to the first housing to unroll or roll the display, allowing the display area to change dynamically based on user needs while maintaining a compact form factor when rolled
Solution Approach 2:
The rollable display is nested within the housing structure, with the second housing containing the rolled portion of the display. When not in use, the display is compacted within the device boundaries; when needed, it is unrolled to provide a larger viewing area, effectively nesting a large display within a small device volume
2Adaptability or versatility
If a complex button structure is used to provide multiple functions, then the functionality is improved, but the device complexity increases
Solution Approach 1:
The button structure achieves multi-functionality through a single integrated assembly that includes a sensor module and multiple coils. The sensor module can detect various input types (touch, pressure, gesture) and the multiple coils provide different actuation mechanisms, allowing one button structure to perform multiple functions without increasing overall structural complexity
Solution Approach 2:
The sensor module and multiple coils are merged into a single integrated button structure assembly. This combination consolidates what would traditionally be separate components into one unified structure, reducing the number of discrete parts and simplifying mounting and wiring while maintaining diverse functionality
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 allows for a larger display area to be extended when needed, while maintaining a compact form factor, and simplifies the button structure's mounting and wiring, enhancing both functionality and aesthetics.
Implementation Method 1
The first coil may be disposed to be spaced apart from the sensor module in a first sidewall and may be electrically connected to the sensor module
Implementation Method 2
The second coil and the third coil may be disposed in a second sidewall of the second housing facing the first sidewall
Data Source
AI summary
An electronic device according to an embodiment may comprise: a first housing, a second housing, a display, and/or a button structure including a button. The second housing may be configured to be movable in relation to the first housing. The display may include a rollable display configured to unroll or roll based on a movement of the second housing. The button structure may comprise a sensor module including at least one sensor, a first coil, a second coil, and/or a third coil. The first coil may be spaced apart from the sensor module within a first sidewall, and may be electrically connected to the sensor module. The second coil and the third coil may be disposed within a second sidewall of the second housing facing the first sidewall. In the second coil and the third coil, the second coil may be spaced apart from the third coil in a direction of the movement of the second housing.