Philips 191EW9FB/27 Gamma, Grayscale, IPS In Plane Switching, Return To Top Of The Page

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:///I/Q70G9002813 8B 191EW9/lcd/manual/ENGLISH/191EW9/glossary/glossary.htm（第 4／9 页）2008-12-8 16:17:09