because the LCD screen every point after receiving the signal has been maintained the color and brightness, constant luminescence, and not like the cathode ray tube display (CRT) need to constantly refresh bright spots.
touch screen display module https://www.stoneitech.com/
![image](https://www.ulavu.com/upload/photos/2023/06/jTysuNUHyrlOzKpwxLq5_09_84e87ed317b6f8391b8be6010e520414_image.jpeg)