The refresh rate of an LCD monitor refers to how many times the monitor refreshes per second. In a liquid crystal display, the state of each pixel is controlled by the voltage change of the liquid crystal molecules. When the voltage changes, the liquid crystal molecules will rotate at a certain angle, thereby changing the refractive index of light and affecting the passage of light, thereby controlling the brightness, color and other properties of the pixel.

The refresh rate of an LCD monitor is generally measured in Hz, which refers to how many times it refreshes per second. Common LCD refresh rates can be divided into three types: 60Hz, 75Hz and 144Hz, among which 60Hz is the most common.

The 60Hz LCD refreshes 60 times per second, and its refresh rate is relatively slow, which is likely to cause screen tearing and afterimages. Especially in games and high-speed video playback, this phenomenon may appear particularly prominent, affecting visual effects.

Compared with 60Hz, the 75Hz LCD monitor has a faster refresh rate, but it is still insufficient compared to the 144Hz high-end monitor, and there may be some problems such as afterimages or blurred pictures.

The 144Hz liquid crystal display is currently the display with the highest refresh rate on the market. Its refresh rate is very fast, and it can keep the screen with a smoother transition effect. At the same time, it also has better motion blur control capabilities, which can greatly reduce the problems of "smearing" and "afterimage" that occur when gamers face high-speed dynamic images.

In short, the refresh rate of LCD is a very important performance indicator, which has a very obvious impact on our experience and visual effects. Generally speaking, a refresh rate of 60Hz is sufficient for daily use. If you need a better gaming experience or a higher refresh rate for professional use, you can choose a high-end LCD monitor with 75Hz or 144Hz.