TN (Twisted Nematic) is one of the earliest and simplest LCD technologies. In TN matrices, liquid crystal molecules are twisted by 90° in their resting state, allowing control of light transmission between polarizers by applying voltage.
TN displays are inexpensive, have fast response times, and consume little power, but they suffer from narrow viewing angles and limited color reproduction compared to IPS or VA technologies. TN panels are still used in simple industrial displays, measuring instruments, calculators, watches, and some computer monitors where low cost and fast performance are prioritized.
