2012年1月3日星期二

film transistors

TFT screen
TFT ( Thin Film Transistor ) is a thin film field effect transistor active matrix liquid crystal display, which belongs to a kind of. It can be" active" on the screen every independent pixel control,HK htc flyer which can greatly improve the reaction time. Average response time of TFT faster, approximately 80 ms, and the visual point of view, the general can reach 130 degrees, are mainly used in high-end products. The so-called thin film field effect transistor, refers to the liquid crystal display LCD pixels each are integrated in the subsequent thin film transistors to drive.

Thus can achieve high speed, high brightness, high contrast display screen information. TFT belongs to the active matrix liquid crystal display, in the technical use of the" active matrix" way to drive method is the use of thin film technology, the transistor electrodes, using the scanning method" active pull" control any display at the opening and closing, light source through the lower polarizing plate upward with with the help of the liquid crystal molecules, light conduction, through the shading and light to achieve the purpose of display.
TFT-LCD liquid crystal display TFT LCD screen, also known as the " true" ( TFT ). TFT liquid crystal for each pixel is provided with a semiconductor switch, each pixel can be achieved by pulse direct control, and each node is relatively independent, and can continuously control, HK HTC flyer p512 not only improve the display speed of response, and can precisely control display level, so the TFT liquid crystal color more really. TFT liquid crystal display screen is characterized by good brightness, high contrast, strong sense of hierarchy, bright colors, but there are also more power and higher cost less. TFT liquid crystal technology to accelerate the development of mobile phone screen. A new generation of color screen mobile phone a lot of support 65536 color display, some even support 160000 colour display, HK toshiba tablet the TFT high contrast, color rich advantage is very important.
TFT type liquid crystal display mainly consists of: a fluorescent tube, a light guide plate, polarizing plate, filter plate, a glass substrate, an alignment film, liquid crystal material, thin model transistor etc..

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