Read more about acquired methemoglobinemia, a condition that results in the formation of an abnormal form of hemoglobin. Learn more about the causes, symptoms, treatment, and diagnosis of acquired methemoglobinemia.
CRT display is the most commonly used form of visual displays, through it is getting gradually replaced with LCD and Plasma displays. A computer monitor using CRT display. In a CRT, an electron beam sweeps the display screen horizontally, one line at a time, gradually down the screen. A synchronization (sync) signal brings the beam back to the top row of the display. This type of scanning (line-by-line) is known as raster scan.
As new display technologies continue to lower the cost and improve the visual impact of electronic billboards and signs, it is likely that these displays will begin to replace various types of static signs and billboards, both in roadside and other applications.