A display apparatus may comprise: a panel driving unit comprising driving circuitry, a display panel, and a processor configured to control the panel driving unit, wherein the processor is configured to: control the panel driving unit to output gate signals to multiple gate lines sequentially one by one to process image data at a first driving frequency in a first mode, and control the panel driving unit to output gate signals to the multiple gate lines sequentially at least two gate lines at a time to process image data at a second driving frequency higher than the first driving frequency in a second mode.