Dell Studio XPS 1645 (Late 2009) - Manual (Page 70)

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Basic Specifications
Display
Luminance (with ETED)
Studio XPS
1640
300 cd/m2 (typical)
250 cd/m2 (minimum)
(WLED/RGBLED)
300 cd/m2 (typical)
270 cd/m2 (minimum)
(FHD WLED)
Studio XPS
1645/1647
300 cd/m2 (typical)
250 cd/m2 (minimum)
(WLED/RGBLED)
300 cd/m2 (typical)
270 cd/m2 (minimum)
(FHD WLED)
Display
Pixel pitch
0.2588 mm (WLED)
0.1840 mm (RGBLED)
0.1792 mm (FHD WLED)
Controls brightness can be
controlled through
keyboard shortcuts (see
the Dell Technology Guide
for more information)
Keyboard (backlit)
Number of keys
86 (U.S. and Canada); 87
(Europe);
90 (Japan)
Layout QWERTY/AZERTY/Kanji