TN displays have a twist (the revolution of the particles from one plane of the display to next) of 90° or less. All aloof coordinate drive, dynamic lattice, and most latent low level (*2 to *32) multiplexed LCD's have a 90° twist!
The fundamental Twisted Nematic LCD comprises of a layer of liquid crystal material upheld by 2 glass plates. The liquid crystal material is a mixture of long, circularly formed particles with diverse electrical and optical properties, contingent upon course!
On the internal surfaces of the glass plates are straightforward cathodes , which are designed to structure the sought visual picture! The internal surfaces are covered with a polymer, which is rubbed so that the liquid crystal material at one surface untruths perpendicular to the next.. Over film of liquid crystal, the particles structure a 90° twist!
On the external surface of the glass plates, polarizers are set so they are parallel to the liquid crystal introduction and perpendicular to one another. In the 'off' state, light entering the first polarizer is guided by the liquid crystal layer twist to the second polarizer, through which it is transmitted. At the point when the cell is energized, the LC material is adjusted to the electric field, light transmitted through the first polarizer is obstructed by the second polarizer, framing a dim picture! The impact may be turned around if the polarizers are set parallel to one another, and a light picture on a dim foundation is shaped.
The TN technology arrives in a solitary coloration, it is Black characters on an ash foundation. It is the minimum extravagant, however has the least visual quality, fundamentally in viewing angle
--TEKSWO Display (Chimei Innolux TFT LCD Display Distributor)
