What are the advantages of TFT LCD screen and LCD LCD screen?
Nov 12, 2021
TFT has good brightness, high contrast, strong layering, and bright colors. The disadvantage is that it consumes more power and costs more. The main components of TFT-type liquid crystal displays include: fluorescent tubes, light guide plates, polarizing plates, filter plates, glass substrates, alignment films, liquid crystal materials, thin-mode transistors, and so on.
LCD, also known as liquid crystal display, is a display that uses liquid crystal control light transmittance technology to achieve color. From the perspective of the structure of the liquid crystal display, the LCD is composed of two parallel glass plates with a thickness of about 1 mm. The liquid crystal material is separated by a uniform interval of 5 μm. Because the liquid crystal material itself does not emit light, there will be two panels on both sides of the LCD screen. There is a lamp tube as a light source, and there is generally a backlight board on the back of the LCD screen, which is mainly used to provide a uniform background light source
(1) Good use characteristics: low-voltage applications, low driving voltage, and improved safety and reliability of solid use; flat panel, light and thin, saving a lot of raw materials and use space; low power consumption, its power consumption is about CRT display One-tenth of that of reflective TFT LCD, which is only about one-tenth of that of CRT, which saves a lot of energy.
(2) The degree of automation of manufacturing technology is high, and the characteristics of large-scale industrial production are good. The TFT LCD industry technology is mature, and the mass production yield rate has reached more than 90%.
(3) TFT-LCD is easy to integrate and upgrade. It is a perfect combination of large-scale semiconductor integrated circuit technology and light source technology, and has great potential for continued development. At present, there are amorphous, polycrystalline and monocrystalline silicon TFT LCDs. In the future, there will be TFTs of other materials, including glass substrates and plastic substrates.
(4) Good environmental protection characteristics: no radiation, no flicker, no harm to the user's health. In particular, the emergence of TFT-LCD e-books will bring mankind into the era of paperless office and paperless printing, triggering a revolution in human learning, dissemination, and recording of civilization.
(5) The application range is wide, and it can be used normally in the temperature range from -20℃ to +50℃. The low temperature working temperature of TFT-LCD after temperature strengthening can reach minus 80℃. It can be used as a mobile terminal display, a desktop terminal display, and a large-screen projection TV. It is a full-size video display terminal with excellent performance.
