Rollable Display Lead Screw Damping for Noise and Vibration

The patent applies beforehand cushioning by pre-installing damping members (viscoelastic material and rubber material) at critical locations where vibration and noise are generated. The damping members are positioned between the lead screw and housing, and at the slider connection points, to absorb vibrations before they propagate through the mechanical structure during display extension and retraction operations.

The patent uses damping members as intermediary elements between the mechanical components (lead screw, slider) and the housing. These damping members act as mediators that decouple the vibration transmission path, allowing the mechanical components to function while preventing noise and vibration from being transmitted to the display unit and housing structure.

The patent employs a spiral-shaped spring configuration that inherently maintains alignment through its geometric design. The spring is formed as a continuous spiral structure that flexes and extends while maintaining its structural integrity and alignment, preventing tangling and misalignment issues that would occur with traditional coiled springs in a linear mechanism.

The spring is designed with a spiral curvature that allows it to expand and contract while maintaining its aligned position. The curved spiral shape provides natural guidance for the spring's movement, ensuring that the elastic force is applied in the correct direction and the spring remains aligned with the lead screw axis throughout the display extension and retraction cycles.