Glossary

Companies joining this program, must be willing to commit themselves to manufacture one or more 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.

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.

I

IPS (In Plane Switching)

file:///G/CD MANUAL/813/190S7 NEW BASE(4-27)/190S7-2007/lcd/manual/ENGLISH/190S7/glossary/glossary.htm(第 4/9 页)2007-4-28 9:01:36

Page 89
Image 89
Philips 190S7 user manual Gamma, Grayscale, Hue, IPS In Plane Switching