The so-called TFT refers to the transistor array on the glass substrate of the LCD panel, which allows each pixel of the LCD to have its own semiconductor switch. Each pixel can control the liquid crystal between two glass substrates through point pulses, achieving independent and precise control of each pixel through active switches. Therefore, each node of a pixel is relatively independent and can be continuously controlled.
TFT type LCD mainly consists of glass substrate, gate, drain, source, semiconductor active layer (a-Si), etc.
TFT arrays are generally deposited together with transparent pixel electrodes, storage capacitors, gate lines, signal lines, etc. on the back glass substrate of the display screen (the substrate far away from the display screen). The configuration of such a transistor array helps to improve the reaction speed of LCD screens, and can also control the display grayscale, thereby ensuring that the image color of LCD is more realistic and the image quality is more pleasing to the eye. Therefore, most LCDs, LCD TVs, and some mobile phones are driven by TFT, whether it is small and medium-sized LCDs using narrow angle twisted nematic (TN) mode or large-sized LCD TVs using wide angle parallel arrangement (IPS) mode, they are commonly referred to as "TFT-LCD".
IPS
IPS screen (In Plane Switching) technology is a liquid crystal panel technology launched by Hitachi in 2001, commonly known as "Super TFT". IPS screen is a technology based on TFT, which is essentially a TFT screen. IPS solves the problem of viewing angle by making molecules have the same apparent length in all directions.
The reason why IPS hard screens have clear and ultra stable dynamic display effects depends on their innovative horizontal conversion molecular arrangement, which changes the vertical molecular arrangement of VA soft screens, thus having a more robust and stable liquid crystal structure. Not on the surface, a hard screen is simply adding a hard protective film to the LCD panel to prevent it from being punctured by external hard objects.
SLCD
The S-LCD panel is a PVA panel, which is Samsung's main PVA mode wide-angle technology. The S-LCD panel adopts PVA technology, which uses a transparent ITO electrode layer, so its higher opening rate can achieve brightness output better than MVA; PVA technology also has a high contrast ratio of 500:1 and a primary color display capability of up to 70%.
