The Stylus Tough TG-1 iHS has an OLED display which is better than most digital cameras that are a similar age to it. Most digital cameras that were released more than two years ago have an LCD display. OLED is a newer technology for displays and has much better colour reproduction, faster response times, wider viewing angles and higher brightness compared to LED displays.
An OLED display is in fact the best display across all similar spec digital cameras that were released around the same time as the Stylus Tough TG-1 iHS.
The worst display across comparable types of camera is LCD.