TN panel, full name Twisted Nematic panel, is a type of display screen. Due to the low production cost, TN has become the most widely used entry-level LCD panel, which is widely used in the mainstream low-end LCD in the market at present. As early as CRT display, because of its special imaging principle, users will not lose much in color, brightness and contrast no matter from which angle they observe the display screen. When the LCD was just launched, the price was too high, and it was difficult for the public to accept the display products with a price of nearly 1, yuan. Therefore, the LCD panel factory introduced a type of panel called "TN", which simplified the panel structure and changed the arrangement of liquid crystal molecules. Its purpose was to reduce the cost of LCD as soon as possible and accelerate the popularization of LCD. However, its side effect is that it is discounted in terms of color effect and viewing angle. At present, TN panels are mostly improved TN+film, which is the compensation film, to make up for the lack of viewing angle of TN panels. At present, the viewing angle of improved TN panels has reached 16, which, of course, is the limit value measured by manufacturers when the contrast ratio is 1: 1. In fact, when the contrast ratio drops to 1:1, the image has been distorted or even cast. The advantages of TN panel are that the output gray scale is less, the deflection speed of liquid crystal molecules is fast, and the response time is easy to improve. At present, TN panel is basically used for liquid crystal products below 8ms in the market. In addition, Samsung has also developed a B-TN(Best-TN) panel, which is actually an improved version of TN panel, mainly to balance the contradiction that TN panel must sacrifice image quality for high-speed response. At the same time, the contrast can reach 7∶1, which is close to the panel of MVA or early PVA. Many panel manufacturers in Taiwan Province produce TN panels, which are soft screens, and similar water lines will appear when lightly scratched by hands.
these are all types of liquid crystal panels. TN panel is the most common display panel at present, which has the advantages of low price and short response time, but the disadvantages are that the color is relatively poor compared with other types and the viewing angle is small.