A computer monitor is an electronic visual display for computers. A monitor usually consists of the display device, circuitry, casing, and power supply. The display device in modern monitors is typically a thin film transistor liquid crystal display (TFT-LCD) or a flat panel LED display.

Computer monitors are used to display graphic and video information. The most common computer monitors are those used in homes and offices. The typical home or office computer monitor has a diagonal screen size of 21 to 30 inches. Larger computer monitors with a screen size of 31 to 40 inches are also available.

The …