Philips 191EW9FB/27 User Manual page 73

Glossary
file:///I|/Q70G9002813 8B 191EW9/lcd/manual/ENGLISH/191EW9/glossary/glossary.htm（第 1／9 页）2008-12-8 16:17:09
Glossary
A B C D E F G H I J K L M N O P
A
Active matrix
This is a kind of liquid crystal display structure in which switching transistors are attached to each
pixel to control the on/off voltage. It produces a brighter and sharper display with a broader viewing
angle than a passive matrix display. Also refer to TFT (thin film transistor).
Amorphous silicon (a-Si)
A semiconductor material that is used to make the thin film transistors (TFTs) layer of an active
matrix LCD.
Aspect ratio
The width-to-height ratio of the active area of a display. In general, most monitors have an aspect
ratio of 4:3. Wide monitors or TVs have an aspect ratio of 16:9 or 16:10.
B
Backlight
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