Another spec that is worth paying attention to is response time. Also measured in milliseconds, it refers to how fast pixels on the display switch from one color to another. Faster response times result in better viewing experiences during fast-paced scenes, while slower response times can result in ghosting or blurring of the image.
Response time relates closely to the type of panel technology used in displays: twisted nematic (TN), vertical alignment (VA), and in-plane switching (IPS). While you do not need to understand their technical differences, it is worth mentioning their pros and cons for gamers. TN panels tend to have the best response times while trading off picture quality. IPS panels are the opposite with great colors and viewing angles but slower response. VA panels offer the best of both worlds with good response times and color reproduction.
Overall, modern TVs have much higher response times than monitors, which might result in ghosting and worse picture quality. Casual gamers are happy with a response time of about 10 milliseconds, while competitive and professional gamers usually target something closer to 1 millisecond.