Thursday, June 6, 2019

Properties of Video Monitor

Properties of Video Monitor

1. Persistence:

is the duration of phosphors sense? Different kinds of phosphors are available for use in a CRT. Beside color, a major difference between phosphors is their persistence, how long they continue to emit light after the electron beam is removed lower phosphors require higher refresh rate to maintain an image on the screen while not flicker. A phosphor with low persistence is useful for animation and a high persistence phosphor is useful for display highly complex, static picture. 2. Resolution 3. Aspect Ratio
There are two types of technique used in current computer graphics terminals for generating the image on the CRT screen.
They are:

1. Random scan

2. Raster scan

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