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Feature Specification
Active area (X/Y) 344.23 mm x 193.54 mm
Maximum resolution
• 1366 x 768 pixels
• 1920 x 1080 pixels
Maximum Brightness 220 nits for HD, 300 nits for FHD
Operating angle 0° (closed) to 135°
Refresh rate 60 Hz
Minimum Viewing angles:
Horizontal
• +/- 40° for HD
• +/- 60° for FHD
Vertical
• +10°/-30° for HD
• +/-50° for FHD
Pixel pitch:
Latitude E5440 0.2265 mm x 0.2265 mm
Latitude E5540
• 0.2520 mm x 0.2520 mm for HD
• 0.1790 x 0.1790 for FHD
Table 23. Keyboard
Feature Specification
Number of keys United States: 86 keys, United Kingdom: 87 keys, Brazil:
87 keys, and Japan: 90 keys
Layout QWERTY/AZERTY/Kanji
Table 24. Touchpad
Feature Specification
Active Area:
X-axis 80.00 mm (3.15 inches)
Y-axis 45.00 mm (1.77 inches)
Table 25. Battery
Feature Specification
Type 4, 6 or 9-cell "smart" lithium ion
Dimensions:
Height
4-, 6-, and 9-cell 20.00 mm (0.79 inch)
Width
56