What are the advantages of TFT LCD?

1. Large display area and wide display angle

Compared with other LCDs, TFT-LCD can have a larger display area, which is beyond the reach of other LCDs.

2. High chip integration and good performance

The 1.3-inch TFT chip used for LCD projection has a resolution of XGA and contains millions of pixels. The 16.1-inch TFT array with a resolution of SXGA (1280 × 1024) has an amorphous silicon film thickness of only 50nm, as well as TAB ON GLASS and SYSTEM ON GLASS technologies, the integration level of its IC, the requirements for equipment and supply technology, and the technical difficulty Both exceed conventional LSI. Low-voltage application, low driving voltage, improved safety and reliability of solidification; flat, thin and light.

3. Good display quality and low harmful radiation

TFT was first used as a matrix addressing 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 range of 0-6V (its typical value is 0.2 to 4V), making it possible for LCDs to achieve high-quality high-resolution displays. TFT-LCD is the first flat-panel display in human history that surpasses CRT in display quality. Now that people are beginning to integrate the driver IC on the glass substrate, the function of the entire TFT will be more powerful, which is unmatched by traditional large-scale semiconductor integrated circuits. No radiation, no flicker, no damage to the user's health. In particular, the emergence of TFT-LCD electronic books will bring mankind 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 many manufacturing processes

Glass substrates and plastic substrates fundamentally solve the cost problem of large-scale semiconductor integrated circuits, and open up a broad application space for the application of large-scale semiconductor integrated circuits. In addition to sputtering, CVD (chemical vapor deposition) MCVD (molecular chemical vapor deposition) and other traditional film formation techniques, laser annealing technology has also begun to be applied, which can produce amorphous films, polycrystalline films, and single crystal films. Not only silicon films can be produced, but also other II-VI and III-V semiconductor thin films can be produced.

5. Wide application range and wide application field

It can be used normally in the temperature range from -20 ℃ to +50 ℃, and the low temperature working temperature of TFT-LCD after temperature strengthening treatment 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. The liquid crystal flat panel display based on TFT technology is 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 display is also growing rapidly.

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