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Lenovo LS2421P
ViewSonic VX2253mh-LED
ViewSonic VX2453mh-LED
LG E2281VR-BN
LG E2290V-SN
Lenovo LS2421P Monitor
ViewSonic VX2253mh-LED Monitor
ViewSonic VX2453mh-LED Monitor
LG E2281VR-BN Monitor
LG E2290V-SN Monitor
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Release Date
Jul 2011
Apr 2011
Feb 2011
Mar 2011
Feb 2011
Aspect Ratio
Widescreen (16:9)
Standard (4:3), Widescreen (16:9)
Standard (4:3), Widescreen (16:9)
16:9
Widescreen (16:9)
Brightness
300.0 cd/m^2
250.0 cd/m^2
300.0 cd/m^2
250.0 cd/m^2
250.0 cd/m^2
Contrast Ratio
1000:1
1000:1
1000:1
10000000:1
10000000:1
Dot Pitch
0.2715 mm
0.248 mm
Response Time
5.0 ms
2.0 ms
2.0 ms
5.0 ms
2.0 ms
Screen Size
23.6 inch
22.0 inch
24.0 inch
21.5 inch
21.5 inch
Color Depth
16.7 million
16.7 million colors
16.7M Colors
Monitor Type
LED
LED Backlit LCD Monitor
Wide Color TFT Active Matrix LCD
LCD LED
LED
Viewable Picture Size
23.6 in.
21.5 in.
23.6 in.
Average Rating
 4.0 stars
 3.5 stars
 3.6 stars
 3.8 stars
 4.0 stars