Display controllers are the main components in video signal generators, which provide video output to a monitor. They dictate the timing of video signals such as vertical and horizontal synchronised signals, and blanking interval signals. Display controllers are usually integrated into the main computer's central processing unit (CPU) system, while they can also act as coprocessors that control the RAM separately.
Display controllers have many applications in situations where a video signal is required. This can be in areas as broad-ranging as medical equipment, industrial controls, touch screen monitors, and mobile communication devices.
The type of display controller required depends on how complex your needs are.