Sliding Display Drive Control for External Force Holding
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Solution Overview
Problem
Existing electronic devices with deformable displays face challenges in maintaining a stationary state when subjected to external forces, leading to unintended changes in the display size, which affects user experience and device stability.
Innovation Solution
An electronic device with a driving mechanism that includes a motor, pinion gear, and rack gear, controlled by a processor to identify and resist external forces, maintaining a holding torque to keep the display in a stationary state without mechanical or electrical brakes, allowing for stable operation and simplified design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a driving mechanism with motor, pinion gear, and rack gear is used to enable display deformation, then the display can be slidably deformable, but the device cannot maintain a stationary state when subjected to external forces
Solution Approach 1:
The processor continuously monitors the position of the housing parts and detects external forces causing unintended movement. Based on this feedback, the processor adjusts the motor's torque output to counteract external forces and maintain the desired stationary state, resolving the contradiction between deformability and stability.
Solution Approach 2:
The system dynamically adjusts the motor's torque based on real-time detection of external forces. The holding torque is not fixed but varies according to the magnitude and direction of external forces, allowing the display to be deformable when needed while maintaining stability when stationary.
2Stability of the object's composition
If mechanical or electrical brakes are added to maintain stationary state, then stability improves, but device complexity increases
Solution Approach 1:
The patent replaces mechanical braking systems with a control system that uses the motor's electromagnetic torque to maintain the stationary state. The processor controls the motor to provide holding torque that counteracts external forces, eliminating the need for separate mechanical or electrical brakes and reducing device complexity.
3Stability of the object's composition
If the motor continuously provides high torque to resist external forces, then stationary state maintenance improves, but power consumption increases
Solution Approach 1:
The motor provides only the necessary holding torque to counteract detected external forces, rather than continuously providing maximum torque. The processor modulates the torque output to match the actual external force magnitude, reducing power consumption while maintaining stability.
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 effectively prevents unintended movement of the display due to external forces, ensuring stable usability and reducing power consumption by controlling the motor's torque based on identified forces, thus enhancing user experience and device stability.
Implementation Method 1
controlling the driving mechanism, based on the identified external force, so that the first housing part and the second housing part remain the stationary state
Data Source
AI summary
An electronic device includes a housing including a first housing part and a second housing part movable with respect to the first housing part, a driving mechanism which provides a driving force for moving the second housing part, and a processor. The processor is configured to identify external force causing a movement in a state in which the first housing part and the second housing part are stationary, and control the driving mechanism so that the first housing part and the second housing part remain the stationary state, based on the identified external forces.