The Thin Film Transistor is short for Thin Film transistors.TFT screen are the mainstream of laptop and desktop display device, the class every LCD pixels on the screen is integrated in the thin film transistor to drive behind the pixels, so the TFT screen is also a kind of active matrix liquid crystal display device.It is one of the best LCD color displays, and the TFT type display has the advantages of high responsiveness, high brightness, high contrast and so on. Its display effect is close to CRT display.In Japan in 1993, after mastering the TFT - LCD production technology, liquid crystal display to the two direction: one direction is toward the low price, low cost of the STN LCD display direction, then introduced the DSTN - LCD (double super twisted array);The other direction is the development of high quality thin-film transistor tft-lcd.Early TFT LCD is mainly used in notebooks, though at the time TFT relative to the DSTN has a great advantage, but because of technical problems, TFT LCD on response time, brightness and the viewing Angle and a large gap with the traditional CRT display, coupled with very low yield lead to its high price, make the desktop TFT LCD becomes unreachable objects.However, with the continuous development of technology, the yield of constantly improve, with the emergence of some new technology, makes the TFT LCD in response time, contrast, brightness, has made great progress in visual Angle, pull close the gap with the traditional CRT display.

Early LCD in brightness, response time, contrast can not reach the requirements of the mainstream display, the response time of some products in more than 50 ms, trailing phenomenon is serious, only suitable for the moving image performance requirements is not high, these limitations also limits the LCD in the mainstream market promotion.But with the progress of technology, technology of mature gradually, TFT panel LCD monitor the response time of the obtained very big development, the current mainstream products are under 25 ms products, and even some manufacturers launched 16 ms response time of LCD display.At the same time, the LCD monitor has made great strides in brightness and contrast, and the TFT - LCD has reached a level of 1) and a vertical Angle of 170 degrees.2) display brightness to 500 nett, contrast 500:1;3) life spans more than 30,000 hours.

On the LCD display effect, due to the ascension of brightness contrast, most LCD monitors have realistic effects and CRT display, and because the response time greatly ascend, LCD display more and more suitable for more applications, 16 ms response time of LCD and even in the heat of the game and no residual shadows of tail phenomenon, has been accepted by some game enthusiasts.