Dell D2421H - Page 12

12 │ About Your Monitor
Pixel per inch (PPI) 92 81
Viewing angle
Horizontal
Vertical
178° (typical)
178° (typical)
178° (typical)
178° (typical)
Brightness 250 cd/m² (typical) 250 cd/m² (typical)
Contrast ratio 1000 to 1 (typical) 1000 to 1 (typical)
Faceplate coating Anti-glare with hard-coating
3H hardness
Anti-glare with hard-coating
3H hardness
Backlight White LED edgelight system White LED edgelight system
Response Time 5 ms (gray to gray - fast
mode)
8 ms (gray to gray - normal
mode)
5 ms (gray to gray - fast
mode)
8 ms (gray to gray - normal
mode)
Color Depth 16.7 mil colors 16.7 mil colors
Color Gamut 72% NTSC(CIE 1931)
and 83% NTSC(CIE 1976)
72% NTSC(CIE 1931)
and 83% NTSC(CIE 1976)
Connectivity
1x VGA, 1x HDMI 1.4, 1x
Earphone (φ 3.5 mm)
1x VGA, 1x HDMI 1.4
Border width (edge of
monitor to active area)
6.25 mm (Side)/6.24 mm
(Top)/22.26 mm (Bottom)
6.98 mm (Side)/6.98 mm
(Top)/20.90 mm (Bottom)
Adjustability
Height adjustable stand
Tilt
Pivot
N/A
-5° to 20°
N/A
N/A
-5° to 20°
N/A
Security Security lock slot (cable lock
sold separately)
Security lock slot (cable lock
sold separately)
Model number D2421DS
Screen type Active matrix - TFT LCD
Panel type In-Plane Switching Technology
Viewable image
Diagonal
Horizontal Active Area
Vertical Active Area
Area
604.5 mm (23.8 in.)
526.85 mm (20.74 in.)
296.35 mm (11.67 in.)
156132.00 mm² (242.03 in.²)