Display Timing Controller Jitter Reduction via Frequency Multiplication

The timing controller integrates multiple functions including external synchronization signal reception, frequency multiplication by a predetermined multiple, internal synchronization signal generation, and scan pulse generation into a single device. This merging approach achieves precise timing control through frequency multiplication while avoiding the need for separate dedicated circuits for each function, thereby reducing overall device complexity despite the enhanced timing precision requirements.

The timing adjustment is performed on an oscillator clock period basis, utilizing periodic timing intervals derived from the oscillation clock. By synchronizing timing adjustments to these periodic clock cycles, the system minimizes jitter accumulation in scan pulses while maintaining achievable manufacturing precision through standardized periodic reference points rather than requiring arbitrary high-precision timing adjustments.