Dell Precision 3581 - Fingerprint Reader (Optional); Sensor

Table 20. Display specifications (continued)
Description Option one Option two Option three
Color depth 6-bit 6-bit True 8-bit
Color 262,144 colors 262,144 colors 16,777,216 colors
Pixels Per Inch (PPI)
141 141 141
Contrast ratio (typical)
700:1 700:1 800:1
Response time (max)
35 ms 35 ms 35 ms
Refresh rate
60 Hz 60 Hz 60 Hz
Horizontal view angle
+/- 80 degrees +/- 80 degrees +/- 80 degrees
Vertical view angle
+/- 80 degrees +/- 80 degrees +/- 80 degrees
Pixel pitch
0.179 x 0.179 mm 0.179 x 0.179 mm 0.179 x 0.179 mm
Power consumption
(maximum)
4.6 W 4.6 W 4.5 W
Anti-glare vs glossy finish
Anti-glare Anti-glare Anti-glare
Fingerprint reader (optional)
The following table lists the specifications of the optional fingerprint-reader of your Precision 3581.
Table 21. Fingerprint reader specifications
Description Values
Fingerprint-reader sensor technology
Capacitive
Fingerprint-reader sensor resolution
500 dpi
Fingerprint-reader sensor pixel size
108 x 88
Sensor
The following table lists the sensor of your Precision 3581.
Table 22. Sensor
Sensor support
Ambient Light Sensor
Accelerometer in the base: ST Micro LIS2DW12TR
Accelerometer in the hinge-up (Upsell config with Emza/ALS/IR camera): ST Micro LNG2DMTR
22 Specifications of Precision 3581