Psion Teklogix 190V6 User Manual
Page 21
Glossary
Gamma
Screen luminance as a function of video voltage approximately follows a mathematical power
function of the input video signal, the exponent of which is called gamma.
Grayscale
An achromatic scale ranging from black through a series of successively lighter grays to white.
Such a series may be made up of steps, which appear to be equally distant from one another. If the
Analog/ Digital converter is 8 bit, then the monitor can display at most 2
8
= 256 levels. For a color
monitor, R.G.B. each color hads 256 levels. Thus, total color can display is 256x256x256= 16.7
million.
Hue
The main attribute of a color that distinguishes it from other colors. For example, a color may have a
green, yellow, or purple hue. Color defined as having hue are know as chromatic colors. White,
black, and grays possess no hue.
IPS (In Plane Switching)
A technique of improving the viewing angle of an LCD where the liquid crystal molecules are
switched in the plane of the LCD layer rather than vertical to it.
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