TN (Twisted Nematic) displays are the most widely used panel type displays that make use of LCD technology. Being cheap and inexpensive to make, they are suited for fast-paced gaming, as in games like Counter-Strike and Call of Duty.
Unlike other panels, TN displays have rather snappy response times. The response times of current TN panels range from 1ms to 5ms. There are normally two values for response times, BTB (Black-To-Black) or GTG (Gray-To-Gray). Response time measures the time taken for a pixel to go from black to white, and back to black again (or gray in the case of GTG). Faster response times reduce the effects of ghosting in fast-moving scenes of movies and especially video games. Modern TN panels can also have a fast refresh rate, up to 120Hz and even 144Hz, which makes them suitable for 3D content.
TN displays’ weaknesses are that they have the worst color reproduction, low viewing angles (under 170-degrees), and contrast ratios of any LCD panel technology. Unlike most 8-bit IPS/VA based panels, TN is only 6-bit, which makes them unable to display a full 24-bit depth, 16.7 million color palette. While they can mimic the 16.7 million colors of 8-bit panels (through a process called dithering), the results aren’t particularly impressive or noteworthy. Who is it for: TN panels are the cheapest of the lot, so they’re usually the go-to monitor for those on a budget. However, gamers actually benefit the most from the speedy response times, as color quality and viewing angles normally come second to a monitor’s ability to keep up with the high frame rates and fast-paced actions of modern games.
The ASUS MG278Q is an example of a TN-type display.