A refresh rate of 240 Hz refers to how many times a display updates its image per second. In this case, the screen refreshes 240 times every second, which can result in smoother motion and clearer images, especially during fast-paced activities like gaming or watching sports. Displays with a 240 Hz refresh rate are often favored by gamers and professionals who require high responsiveness and fluid visuals. This higher refresh rate can reduce motion blur and improve the overall viewing experience, making it easier to track fast-moving objects on the screen.