Dell ST2421L Monitor - Manual (Page 7)

HDMI Connector
Flat Panel Specifications
* Based on estimation
** ST2420L/ST2421L Color Gamut (Typical) is based on CIE1976 (81 %) and CIE1931 (68 %).
Pin Number 19-pin Side of the Connected Signal Cable
1 TMDS DATA 2+
2 TMDS DATA 2 SHIELD
3 TMDS DATA 2-
4 TMDS DATA 1+
5 TMDS DATA 1 SHIELD
6 TMDS DATA 1-
7 TMDS DATA 0+
8 TMDS DATA 0 SHIELD
9 TMDS DATA 0-
10 TMDS CLOCK
11 TMDS CLOCK SHIELD
12 TMDS CLOCK-
13 CEC
14 Reserved (N.C. on device)
15 DDC CLOCK (SCL)
16 DDC DATA (SDA)
17 DDC/CEC Ground
18 +5V POWER
19 HOT PLUG DETECT
Model ST2420L/ST2421L
Screen type Active matrix - TFT LCD
Panel type TN
Screen dimensions 60.97cm (24 inches) (24-inch viewable image size)
Preset display area:
Horizontal
Vertical
531.36 mm (20.92 inches)
298.89 mm (11.77 inches)
Pixel pitch 0.277 mm
Viewing angle 160° (vertical) typical, 170° (horizontal) typical
Luminance output 250 CD/m² (typical)
Contrast Ratio 1,000:1 (typical)
Dynamic Contrast Ratio
ST2420L: 8,000,000 to 1*
ST2421L: 7,000,000 to 1*
Faceplate coating Antiglare with hard-coating 3H
Backlight LED light bar system
Response Time 5 ms typical
Color Depth 16.7 mil colors
Color Gamut 81 %**