Rotating Display Support Arm With Portrait Collision Limiting

The patent applies dynamics by making the vertical movement range of the support arm changeable based on the orientation of the display module. When the display module is in landscape orientation, the support arm allows a larger vertical movement range. When rotated to portrait orientation, the vertical movement range is automatically reduced. This dynamic adjustment resolves the contradiction by adapting the movement range to the current orientation, ensuring both ease of operation and collision prevention.

The patent changes the parameter of vertical movement range according to the orientation state. A detection mechanism identifies whether the display module is in landscape or portrait orientation, and based on this detection, the control system adjusts the permissible vertical movement range accordingly. This parameter change approach allows the system to maintain optimal viewing adjustment while preventing floor collisions in portrait mode.

The patent achieves multi-functionality by designing a single support device structure that can accommodate both landscape and portrait orientations with different vertical movement ranges. The support arm and limiting mechanism are designed to automatically adapt to the orientation state, eliminating the need for separate structures for each orientation. This universal design resolves the contradiction by providing orientation-specific functionality through a unified structure.

The support device performs self-service by automatically detecting the orientation state and adjusting the vertical movement range without requiring external intervention or complex control systems. The mechanical linkage and limiting mechanisms are designed to respond automatically to the display module's orientation, reducing the need for additional sensors, motors, or control electronics, thereby minimizing structural complexity.

The patent applies preliminary anti-action by implementing a limiting mechanism that prevents the support arm from moving beyond a safe position that could cause floor collision. Before a collision can occur, the limiting mechanism (such as a mechanical stop or sensor-based constraint) blocks further downward movement. This preliminary protective action resolves the contradiction by maintaining adjustment flexibility within safe boundaries while preemptively preventing damage-causing collisions.

The patent introduces an intermediary limiting mechanism between the support arm and the display module that mediates the vertical movement. This intermediary component (such as a guide rail with stops, a mechanical linkage with range limits, or a sensor-based control barrier) allows flexible adjustment within the safe range while blocking movement that would lead to collision. The intermediary protects the display module from direct exposure to the harmful effect of floor contact.