Convertible Display Stabilization via Solenoid-Actuated Friction Control

The patent applies dynamics by making the friction characteristic changeable between two states: high friction for stabilization and low friction for repositioning. The solenoid actuator dynamically adjusts the normal force between the display and base, thereby controlling the friction force. This allows the system to transition from a static friction-based stabilization method to a dynamic system that can adapt between stabilization and repositioning modes as needed.

The patent implements periodic action by applying magnetic force only when needed for stabilization or repositioning, rather than continuously. The solenoid actuator is activated intermittently to adjust the normal force when the display needs to be stabilized at a new angle or repositioned. Between these periodic activations, the display maintains its position through the established friction and gravitational forces, significantly reducing energy consumption while maintaining stabilization capability when required.

The patent applies feedback by using sensors to detect user gestures and the current state of the display, then using this information to control the solenoid actuator. When the sensor detects an intentional repositioning gesture (such as a deliberate touch or movement beyond a threshold), the system provides feedback by activating the solenoid to reduce friction and enable movement. This feedback loop allows the system to distinguish between unintentional gestures during normal use and intentional repositioning commands, resolving the contradiction between stability and gesture detection.