Rollable Display Motion Control Using Orientation-Based Motor Force
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Solution Overview
Problem
The size of electronic device displays is limited by the fixed structure, preventing the integration of larger displays in compact devices due to the trade-off between size and portability.
Innovation Solution
Incorporating a posture detection sensor, such as an acceleration or gyro sensor, to adjust the driving force for the movement of a rollable display based on the device's posture, using a motor and gear assembly to control the display's expansion or contraction efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If a fixed display structure is used, then the device maintains compact size and portability, but the display size is limited and cannot be increased
Solution Approach 1:
The patent implements a dynamic display structure that can change between extended and retracted states. The display panel is coupled with a support plate that can move relative to the housing, allowing the display area to be adjusted based on user needs while maintaining compact form when retracted.
Solution Approach 2:
The display system is divided into separable components: the display panel, support plate, and housing. This segmentation allows the display panel to move independently between extended and retracted positions, enabling variable display sizes within a compact device structure.
2Adaptability or versatility
If a motor is added to enable automatic display movement, then display size adjustability is improved, but power consumption increases
Solution Approach 1:
The patent incorporates a sensor module that detects the posture of the electronic device and provides feedback to the processor. Based on this feedback, the processor automatically controls the motor to adjust the display panel position, enabling adaptive power management that reduces unnecessary motor operation and lowers overall power consumption.
Solution Approach 2:
The system uses the device's own sensor module and processor to automatically control display adjustment based on detected posture, eliminating the need for manual user input. This self-service mechanism optimizes power consumption by making adjustments only when necessary based on actual device usage conditions.
3Area of moving object
If the display is made larger, then multimedia service quality is improved, but the device becomes less portable and more difficult to carry
Solution Approach 1:
The display structure is designed to be dynamic rather than static, allowing the display panel to extend when needed for multimedia consumption and retract when portability is prioritized. This dynamic configuration enables the device to adapt between large display mode and compact portable mode.
Solution Approach 2:
The support plate and display panel are designed to nest within the housing when retracted, similar to a nested doll structure. This allows the display components to be stored compactly within the device body, maintaining portability while enabling large display area when extended.
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 approach allows for efficient use of current to drive the display movement, reducing power consumption while enabling larger display sizes without compromising portability.
Implementation Method 1
the driving force required for the movement of the support plate varies based upon the position of the display... based upon the weight of the components
Implementation Method 2
a driving motor may rotate the motor gear based on a signal received from a processor
Implementation Method 3
the force detection sensor may be used to monitor whether the flexible display member is overloaded, and in the case of being overloaded, the power supply to motor may be cut off
Data Source
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AI summary
This electronic apparatus comprises: an extendable support that includes a first structure and a second structure for accommodating at least a portion of the first structure, wherein the second structure is for guiding the movement of the first structure relative to the second structure; a display that is configured so that at least a portion thereof rolls up on the basis of the relative movement of the first structure; a motor for generating an output for the relative movement of the first structure; a sensor module for sensing the orientation in which the electronic apparatus is positioned; and a processor configured to change the output of the motor module on the basis of the orientation of the electronic apparatus sensed by the sensor module.