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Glossary
file:///F|/manual spec/813/philips TV&lcd/cd/Q70G9002813 8A 191EW9/lcd/manual/ENGLISH/191EW9/glossary/glossary.htm（第 1／9 页）2008-9-2 13:17:04
Glossary
A B C D E
F
G H I
J K
L
M
N
O
P
Q
R S T U V
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
W X Y Z
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Troubleshooting
