1. Large display area and wide display angle
TFT-LCD can have a larger display area compared to other LCDs., The best vertical and horizontal viewing angles for TFT-LCD now reach 178 degrees, which is unmatched by other LCDs.
2. High chip integration and good usage characteristics
The resolution of the 1.3-inch TFT chip used for LCD projection is XGA, which contains millions of pixels. The film thickness of the 16.1-inch TFT array amorphous silicon with a resolution of SXGA (1280 × 1024) is only 50nm, and the TAB ON GLASS and SYSTEM ON GLASS technologies have higher IC integration, equipment and supply technology requirements, and technical difficulties than traditional LSI. Low voltage applications, low driving voltage, improved safety and reliability in solid-state use; Flattening and lightweight.
3. Good display quality and low harmful radiation
TFT was originally used as a matrix selection circuit to improve the light valve characteristics of liquid crystals. For high-resolution displays, precise control of object elements is achieved through voltage regulation in the 0-6V range (with a typical value of 0.2 to 4V), making it possible for LCDs to achieve high-quality high-resolution display. TFT-LCD is the first flat panel display in human history to surpass CRT in display quality. Nowadays, people are beginning to integrate driver ICs onto glass substrates, making the entire TFT more powerful than traditional large-scale semiconductor integrated circuits. No radiation, no flicker, and no harm to the user's health. Especially with the emergence of TFT-LCD electronic books and magazines, it will bring humanity into the era of paperless office and paperless printing, triggering a revolution in the way humans learn, spread, and record civilization.
4. Low production cost and multiple manufacturing processes
Glass and plastic substrates fundamentally solve the cost problem of large-scale semiconductor integrated circuits, opening up vast application space for the application of large-scale semiconductor integrated circuits. In addition to traditional processes such as sputtering, CVD (chemical vapor deposition), MCVD (molecular chemical vapor deposition), laser annealing technology has also begun to be applied, which can produce amorphous films, polycrystalline films, and single crystal films. Not only can silicon films be made, but other II-VI and III-V semiconductor thin films can also be made.
5. Wide applicability and application fields
The TFT-LCD can be used normally within the temperature range of -20 ℃ to+50 ℃, and the low-temperature working temperature of the TFT-LCD after temperature reinforcement treatment can reach minus 80 ℃. It can be used as a mobile terminal display, desktop terminal display, and also as a large screen projection TV, making it a high-performance full-size video display terminal. LCD flat panel displays based on TFT technology are the pillar industry of the information society, and the technology can also be applied to the rapidly growing thin film transistor organic electroluminescent (TFT-OLED) flat panel displays.