DISPLAY DRIVER INTEGRATED CIRCUITS, DEVICES INCLUDING DISPLAY DRIVER INTEGRATED CIRCUITS, AND METHODS OF OPERATING DISPLAY DRIVER INTEGRATED CIRCUITS

摘要

Methods of operating a display driver integrated circuit (IC) are provided. A method of operating a display driver IC may include generating a first clock signal, and calculating a frequency of the first clock signal using a second clock signal. Moreover, the method may include generating an adjustment signal using the frequency of the first clock signal and a target frequency, and adjusting the frequency of the first clock signal using the adjustment signal. Related display driver ICs and portable electronic devices are also provided.

主权项

1. A display driver integrated circuit (IC) comprising:
an oscillator configured to generate a first clock signal; and a frequency compensation circuit configured to calculate a frequency of the first clock signal using a second clock signal that is input from outside of the display driver IC, and to generate an adjustment signal using the calculated frequency and a target frequency, wherein the oscillator is configured to adjust the frequency of the first clock signal using the adjustment signal.