Cascade Driving Circuits Signal Synchronization

The patent applies preliminary action by generating flag signals in advance at each driving circuit before the actual data signals are transmitted. These flag signals are delayed and stored in buffer circuits, preparing the synchronization timing beforehand. This allows the system to pre-establish the timing reference needed for synchronized operation across multiple cascade-connected driving circuits, thereby managing the time delay issue while maintaining high data processing capacity.

The patent introduces flag signals as intermediary elements that mediate the synchronization between cascade-connected driving circuits. Each driving circuit generates its own flag signal based on its local clock, and these flag signals are delayed and buffered to create a common timing reference. This intermediary mechanism allows the system to maintain reliable signal synchronization across multiple chips while preserving the high display data processing capability enabled by the cascade architecture.

The patent applies segmentation by dividing the delay function into modular delay circuit units that can be independently implemented in each driving circuit. Each driving circuit contains its own delay circuit that processes local flag signals, rather than using a single centralized delay mechanism. This segmented approach achieves the required synchronization accuracy while keeping each individual circuit module relatively simple and manageable, thus controlling overall device complexity.