3.5 Inch Module Touch Screen

TFT (Thin Film Transistor) LCD TFT LCD, is a type of active matrix liquid crystal display (LCD) AM - one of the.
Unlike TN, TFT displays are "backlit" - the imaginary light path is not from top to bottom, as in TN, but from bottom to top.In this way, a special light tube is set on the back of the liquid crystal, and the light source shines upward through the lower polarizer.Since the upper and lower interlayer electrodes are changed into FET electrodes and common electrodes, the performance of liquid crystal molecules will also change when the FET electrode is switched on. The display purpose can be achieved through shading and light transmission, and the response time is greatly improved to about 80ms.TFT is commonly known as "true color" because it has higher contrast and richer colors than tn-lcd, and the screen updates faster.
The main feature of tft-lcd, as opposed to DSTN, is one semiconductor switch per pixel.Because each pixel can be directly controlled by point pulses.Therefore, each node is relatively independent and can be controlled continuously.Such a design method not only improves the response speed of the display screen, but also can accurately control the display gray scale, which is why TFT color is more realistic than DSTN.