自定义显示刷新率

The refresh rate of a customized display is divided into vertical refresh rate and horizontal refresh rate. The vertical refresh frequency is also called the field frequency, which refers to the number of times the customized display repeatedly refreshes the display screen per second, expressed in Hz. This refresh rate is commonly referred to as the refresh rate; the horizontal refresh rate is also called the horizontal frequency (Horizontai scanning trequency), which is the number of scans of the horizontal line per second in the specified display, the unit is kHz; the vertical refresh rate, vertical frequency (Vertical The unit of scanning frequency is MHz, which is determined by the horizontal refresh rate and the screen resolution. The vertical refresh rate indicates how many times the screen image is redrawn per second, that is, the number of screen refreshes per second.