Blue only mode

Blue Only mode is a special display mode on display units such as projectors and television sets whereby only the blue pixels or the blue cathode ray tube is used to generate the image. Displays featuring this mode are prominent especially in the broadcast area because it allows for hue and saturation to be adjusted quickly and accurately. Professional monitors may feature a dedicated button on the front of the display to activate blue only mode. In general, all test pattern with a color bar, that includes red, green, blue, and the complementary colors cyan, magenta and yellow can be used to adjust hue and saturation in blue only mode. Particularly often the SMPTE test pattern or the HD version of the SMPTE is used for hue and saturation adjustment. These are in many cases already integrated in the recording and playback devices in the professional sector and are always available. Also the Blue Only-test image of the company Burosch audio video technology is suitable for use with a blue filter foil or just the Blue Only mode of a display. In addition to hue and saturation adjustment, it's possible to even adjust brightness, contrast and to check the transmission path with the burosch test. The above-mentioned test pattern from the Burosch company represents an update of the traditional HD SMPTE test pattern, with additional test zones for complete image control and optimization.