Glossary

products capable of going into a low -power state (< 30 W) either after a period of inactivity, or after a predetermined time selected by the user.

RETURN TO TOP OF THE PAGE

G

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 28 = 256 levels. For a color monitor, R.G.B. each color hads 256 levels. Thus, total color can display is 256x256x256= 16.7 million.

RETURN TO TOP OF THE PAGE

H

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.

RETURN TO TOP OF THE PAGE

I

file:///D/My%20Documents/dfu/A5_new/ENGLISH/150S6/glossary/glossary.htm (4 of 10)2005-06-07 4:49:46 PM

Page 23
Image 23
Philips 15056 user manual Gamma