RGB / RGBHV / RGBC(S) / RGsB Video

[Richard]

RGB is the method used by professionals for years on end with the most common variety being RGBHV. RGB stands for red, green and blue with HV standing for horizontal and vertical sync. Typically this system uses 5 seperate wires with BNC connectors on the ends. It is a full signal system in that the red, green and blue images are fully decoded ready to be applied to the CRTs and is based on CRT technology. True RGB systems only have brightness and contrast controls. The color is already decoded so not tint or color level controls. Sharpness is an eye candy gimmick so it is not availble either. The RGB system can use any scan rate provided the display supports it and is most often applied in the personal computer world these days via VGA connections.

RGBC or S uses four wires with the HV replaced with what is called sync for S or composite sync for C.

RGsB uses three wires and the composite sync is encoded on the green signal just like composite video.

VGA is also the same thing as RGBHV with a single easy to use connector for personal computer displays and applications.