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The Difference between Graphic Screen and TFT Screen


Dot matrix screen technology takes full color as an example to package 192 LED chips in a three-color group on a module, which is composed of a unit board and a display screen composed of a unit board. Lattice, itself is a geometric term, in English: lattice. It is a lattice frame, similar to the meaning of a lattice frame. This is a space noun, if you take out the plane, then and the display of the lamp bead arrangement is not your association, the design display dot matrix refers to how many pixels can be displayed on the long and wide display screen, or how many LEDs will emit light at the same time on the LED display. There is a deep correlation with the mesh structure of our digital-analog circuits. The main products of dot matrix full color are P6 and P7.62. Suitable for sports venues, commercial applications, banks, securities, postal, schools, restaurants, hotels, entertainment, enterprises and other different places. TFT is a variant of LCD, TFT, Thin Film Transistor thin film transistor, is an active matrix type liquid crystal display AM-LCD one, TFT in the back of the liquid crystal set special light tube, can "actively" on the screen of each independent pixel control, which is the so-called active matrix TFT (AcTIveMatrixTFT) of the origin, which can greatly improve the reaction time, the general TFT reaction time is relatively fast , about 80ms, while the STN is 200ms, if you want to increase there will be flickering phenomenon. And because TFT is an active matrix LCD, the arrangement of liquid crystals is memorable and does not return to its original state immediately after the current disappears. TFT also improves STN flicker (water ripple) – the phenomenon of blurring effectively improves the ability to play back dynamic images. Compared with STN, TFT has excellent color saturation, reproduction ability and higher contrast, but the disadvantage is that it consumes more power and the cost is relatively high.