The difference between dot matrix screen and TFT screen

Taking full color as an example, dot matrix screen technology is to encapsulate 192 LED chips in three colors in a module, which are composed of modules and unit boards, which are composed of display screens.

Dot matrix is a geometric term in itself, and its English name is lattice. It is a lattice frame, similar to the meaning of a lattice frame. It is a spatial noun. If it is taken out of the plane, it is not related to the arrangement of the lamp beads of the display screen. The design of the display dot matrix refers to how many pixels can be displayed on the display screen in length and width, or how many LEDs can be lit at the same time in length and width on the LED display screen. It is deeply related to the mesh structure of our digital analog circuit. The main products of dot matrix full color are P6 and P7.62. It is suitable for different places such as stadiums, commercial applications, banks, securities, post offices, schools, restaurants, hotels, entertainment, and enterprises. TFT is a variant of LCD. TFT, Thin Film Transistor, is a type of active matrix liquid crystal display AM-LCD. TFT sets a special light tube on the back of the liquid crystal, which can "actively" control each independent pixel on the screen. This is the origin of the so-called active matrix TFT (Active Matrix TFT), which can greatly improve the response time. Generally, the response time of TFT is relatively fast, about 80ms, while that of STN is 200ms. If it is to be improved, flickering will occur. And because TFT is an active matrix LCD, the arrangement of liquid crystals can be memorized and will not be restored immediately after the current disappears. TFT also improves the STN flicker (water ripple)-blur phenomenon and effectively improves the ability to play dynamic pictures. Compared with STN, TFT has excellent color saturation, restoration ability and higher contrast, but the disadvantage is that it consumes more power and is more expensive.