Rgb cables are named so, because the plugs at the ends of the cables are color coded red, green and blue. There are a range of Rgb cables. All Rgb cables are a type of component video cables. Component video cables are able to split video signals into three distinct signals. Two of the three signals operate how much red and blue there is in a picture. They are called the B-Y and R-Y components. The third signal, called the luminance signal handles black and white facts and controls the radiance of a picture. It is often called the Y component. Unlike composite cables, there is no compression of any signals. Because of this the depth of color and resolution achieved is excellent to composite video and is even an improvement of S-Video setups.
Rgb is still sometimes used on computers but is increasingly being supplanted by digital formats that wish digital video interface cables (Dvi cables). Some of the many devices that are Rgb input devices and use Rgb cables and technology are color televisions, digital cameras and scanners. There are also any Rgb production devices that are used very often. They include, computer and cell phone displays, television sets with a range of display types such as cathode ray technology (Crt), liquid crystal display (Lcd) and plasma display or Led display, video projectors, and the large screen displays called JumboTron that are used at many sporting facilities and entertainment venues.
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Rgb analog composite video signals must all the time be combined with some other signal in order to function properly. One of the ways this is done is called composite sync. In any type of display, the resolution is carefully by the number of pixels that are arranged both vertically and horizontally on the display device such as a computer monitor or a television monitor. The number of vertical lines in the display is all the time fixed. The vertical lines are also often referred to as scan lines. However, conversely the number of pixels that are in in the middle of each vertical line can vary. The number of pixels determines the horizontal resolution. Depending on the potential of the monitor or display output, the potential of resolution achieved can vary. In this type of setup, both the horizontal and vertical signals are combined on a fully separate wire. This type of synching is called Rgbs. A true composite signal is achieved by utilizing four wires. They are colored red, green, blue and a plug for sync which is commonly white or yellow in color. Someone else way to combine signals is called separate sync. In separate sync, the horizontal and vertical signals are each carried on a separate wire. This type of synch is used in Rgbhv setups. separate sync is common in Vga devices such as analog computer monitors. separate sync requires five distinct plugs. They are color coded red, green, blue and whether a composition of yellow and white, yellow and black, or gray and black plugs.
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