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Lenovo LS2421P
ViewSonic VX2453mh-LED
ASUS Ml249h
NEC EX231W
NEC E231W
Lenovo LS2421P Monitor
ViewSonic VX2453mh-LED Monitor
ASUS Ml249h Monitor
NEC EX231W-BK 23 inch LCD Monitor
NEC E231W LCD Monitor
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Release Date
Jul 2011
Feb 2011
Feb 2011
Sep 2010
Aug 2010
Screen Size
23.6 inch
24.0 inch
24.0 inch
23.0 inch
23.0 inch
Aspect Ratio
Widescreen (16:9)
Standard (4:3), Widescreen (16:9)
Widescreen (16:9)
16:9
16:9
Brightness
300.0 cd/m^2
300.0 cd/m^2
250.0 cd/m^2
250.0 cd/m^2
250.0 cd/m^2
Contrast Ratio
1000:1
1000:1
3000:1
1000:1
1000:1
Dot Pitch
0.2715 mm
0.2768 mm
0.27 mm
265.0 mm
Response Time
5.0 ms
2.0 ms
8.0 ms
5.0 ms
5.0 ms
Color Depth
16.7 million
16.7M
More than 16.7 million
16.7 million colors
Monitor Type
LED
Wide Color TFT Active Matrix LCD
LCD display / TFT active matrix
Flat Panel LCD TFT (Active Matrix)
Widescreen LCD
Viewable Picture Size
23.6 in.
23.6 in.
23.0 in.
23.0 in.
Average Rating
 4.0 stars
 3.6 stars
 4.0 stars
 3.8 stars
 3.3 stars