A thin-film-transistor liquid-crystal display (TFT LCD) is a variant of a liquid-crystal display (LCD) that uses thin-film-transistor (TFT) technology to improve image qualities such as addressability and contrast. A TFT LCD is an active matrix LCD, in contrast to passive matrix LCDs or simple, direct-driven LCDs with a few segments.
TFT LCDs are used in appliances including television sets, computer monitors, mobile phones, handheld devices, video game systems, personal digital assistants, navigation systems, projectors, and car dashboards.
The standard character display resolution includes 8x2 , 12x2, 16x1, 16x2, 16x4, 20x2, 20x4, 24x2, 40x2, 40x4 character LCD display. Character LCD modules are available in COB/COG types with different interfaces in SPI, I2C etc. Character LCD modules are available in STN/FSTN/FFSTN LCD displays with different LED backlight in Yellow-Green, White and Blue colour.