Patent ID: 11915666
Assignee: NOVATEK MICROELECTRONICS CORP.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 6:
7. A display driving integrated circuit, comprising:
a display synchronization signal pin, configured to receive a display synchronization signal;
a frequency tracking circuit, coupled to the display synchronization signal pin, wherein the frequency tracking circuit perforins a frequency tracking operation on an original internal clock signal to generate a tracked internal clock signal by selectively using the display synchronization signal as a frequency tracking reference clock, wherein the frequency tracking operation is performed by calculating an offset between the original internal clock signal of the display driving integrated circuit and the frequency tracking reference clock and adjusting a frequency of the original internal clock signal of the display driving integrated circuit to be consistent with a frequency of the frequency tracking reference clock; and
a display driving circuit, coupled to the display synchronization signal pin, wherein the display driving circuit is coupled to the frequency tracking circuit to receive the tracked internal clock signal, and the display driving circuit is configured to drive a display panel according to the tracked internal clock signal and the display synchronization signal.