IPS screens or TN screens, including other ADS, PLS, etc., are all display modes. ADS and PLS are the same as IPS, but IPS is a patented technology, and manufacturers avoid patent names. They just changed their names, but they are actually IPS screens. As shown in the figure, the biggest difference between IPS screens and TN screens is the viewing angle. Looking at the screen from a bird's eye view, the TN screen on the left can no longer restore the screen content, while the IPS screen on the right still maintains the essential picture color. This is the screen Differences caused by viewing angles.