Foldable Display Angle Control for Stress-Safe Unfolding

The patent applies dynamics by making the angular velocity variable rather than constant. The control method adjusts the angular velocity dynamically based on the current folding angle, using a first angular velocity when the folding angle is below a threshold and a second angular velocity when above the threshold. This dynamic adjustment resolves the contradiction by optimizing speed while preventing excessive stress at critical folding angles.

The patent changes the parameter of angular velocity based on the folding angle parameter. By establishing a relationship between folding angle and angular velocity, the system transitions from a fixed-speed operation to a variable-speed operation. This parameter change allows the system to maintain high operation speed generally while reducing speed at critical angles to minimize stress and prevent damage.

The patent uses dynamic control of angular velocity to resolve this contradiction. Instead of maintaining a uniformly low angular velocity, the system dynamically adjusts speed based on the folding angle. Low angular velocity is applied only when necessary (at critical folding angles near the threshold) to reduce stress, while higher velocities are used at safe angles to maintain operation speed.

The system changes the angular velocity parameter conditionally based on the folding angle parameter. By establishing threshold-based parameter changes, the patent enables the system to operate at high speeds during safe folding ranges while switching to low speeds only when approaching critical angles, thus resolving the trade-off between speed and stress reduction.

The patent applies segmentation by dividing the folding angle range into multiple segments based on threshold values. Instead of using a single control mode for all angles, the system segments the folding process into different angular ranges, each with its own angular velocity parameter. This segmentation improves reliability by applying appropriate speeds to different folding stages while maintaining relatively simple control logic.

The patent uses parameter changes to improve reliability without significantly increasing complexity. By changing the angular velocity parameter based on folding angle thresholds, the system adapts its operation to prevent damage at critical angles. This parameter-based control approach maintains simplicity while enhancing reliability through conditional parameter adjustment.