Display Driver Common Reverse Timing Control

The patent applies preliminary action by controlling the common reverse timing to occur before or after the image data writing period, rather than during it. The timing control unit is configured to generate a common reverse control signal that ensures the common electrode voltage reversal does not overlap with the data writing period, thereby preventing power supply noise interference while maintaining simple timing control architecture.

The patent implements periodic action by using a timing control unit that automatically generates common reverse control signals based on predetermined timing intervals and display panel operation cycles. Instead of continuous CPU intervention, the system uses periodic timing signals to trigger common reverse operations at appropriate moments, significantly reducing CPU power consumption while maintaining precise control over the common reverse timing.

The patent applies merging by integrating the common reverse control function into the existing timing control unit that also manages data writing operations. By combining these control functions in a single unit, the system achieves independent common reverse driving (reducing CPU power consumption) while avoiding additional timing coordination complexity through unified control logic that inherently understands the relationships between different operation cycles.