TFT (Thin Film Transistor) is the abbreviation of thin film transistor, TFT screen is currently a very mainstream display device, TFT display of each LCD pixel is integrated in the pixel behind the thin-film transistor to drive; is active on the screen of each individual pixel control, TFT-style display has a high responsiveness, high brightness, high contrast and other advantages. OLED (Organic Light-Emitting Diode) is an organic light-emitting diode, OLED is the use of very thin coating of organic materials and glass substrate (or flexible organic substrate), when there is a current through the organic materials will emit light. OLED display is driven by an electric field, organic semiconductor materials and light-emitting materials through the overcarrier injection and composite to achieve light emission. and compounded to achieve light emission.
OLED has many features, such as thin and light, low energy consumption, high brightness, good luminosity, and can also be bent.OLED screen has wide viewing angle, high brightness, and vivid colors. Nowadays, many high-end cell phones start to use OLED screen. the reaction time of TFT is faster than OLED; and the life span of TFT screen is much longer than that of OLED screen, theoretically, the life span of TFT screen is about 5,000 times; and the life span of TFT screen is about 20,000 times. the OLED screen can rely on its own characteristics of luminescence to display the image, and doesn't need to be backlit, and is not subject to the ambient light. OLED screen can rely on its own characteristics of light to display images, without the need to use a backlight, and is not affected by the surrounding light; backlight and brightness OLED true color screen is better than the TFT screen. And OLED screen is relatively more energy-saving, TFT screen is active matrix liquid crystal, need to use the brightness of the backlight to display the image, TFT screen is affected by the surrounding light; so the TFT screen is more power-consuming.