TFT screens are generally called "active panels" by most liquid crystal displays, and the core technology of "active panels" is thin-film transistors, which leads people to call them active panel TFTs. Although the name is inappropriate, it is usually for ease of memory.
The working mode of the TFT screen is that each liquid crystal pixel on the LCD is driven by a thin-film transistor integrated behind it, that is TFT. To put it simply, TFT is to configure a semiconductor switching device for each pixel, which can directly control each pixel through point pulse. And because each node is relatively independent, it can be controlled continuously.
The full name of the IPS screen is (in-plane switching). IPS technology changes the arrangement of liquid crystal molecular particles, adopts horizontal conversion technology, speeds up the deflection speed of liquid crystal molecules, ensures the clarity and super expressiveness of the screen when shaking, and eliminates the traditional liquid crystal display when it is subjected to external pressure and shaking. The phenomenon of blur and water ripple diffusion. Because the liquid crystal molecules rotate in the plane, the IPS screen has a very good viewing angle performance, and the viewing angle of the four axes can be close to 180 degrees.
The IPS screen is the same as the TN screen. When displaying white, the spiral liquid crystal molecules guide the light in the horizontal direction, but when displaying black, the liquid crystal molecules do not turn to the vertical direction, but are still twisted in the horizontal direction, so the original spiral becomes a layer of light. One layer, the light will be blocked in the above polarizer, which is twisted on the same plane.
The liquid crystal of IPS screen can reach the dynamic resolution of 780 lines. In terms of static definition, according to the requirements of the 720-line high-definition standard, high-definition can still be achieved. This panel technology enhances the dynamic display effect of liquid crystals. Compared with other types of panels, IPS panels are less prone to slight waterline deformation, so they are also called hard screens. Look carefully at the screen. If you see the fish scale pixels on the left and the hard screen, you can be sure that it is an IPS screen.
The viewing angle of the IPS hard screen panel can reach 178 degrees. The degree of color change from the front and different angles is called the color distortion rate. The results show that the value obtained by the IPS hard screen is almost indistinguishable from the naked eye, which means that the picture effect is the same when viewed from the front or the side.
IPS screen technology is very powerful and widely used in LCD screens, but it is still based on TFT technology, which is essentially a TFT screen. IPS is also a liquid crystal display mode derived from TFT, so TFT LCD screen and IPS LCD screen come from one body.
