Dell UltraSharp U3821DW User Manual page 45

Preset Modes WARNING: The possible long-term effects of
blue light emission from the monitor may
cause personal injury such as digital eye
strain, eye fatigue and damage to the eyes.
Using monitor for extended periods of time
may also cause pain in parts of body such as
neck, arm, back and shoulder.
To reduce the risk of eye strain and neck/arm/
back/shoulder pain from using the monitor for long
periods of time, we suggest you to:
1. Set the distance of the screen between 20 to
28 in. (50 - 70 cm) from your eyes.
2. Blink frequently to moisten your eyes or wet
your eyes with water after prolonged usage of
the monitor.
3. Take regular and frequent breaks for 20 minutes
every two hours.
4. Look away from your monitor and gaze at a
distant object at 20 feet away for at least 20
seconds during the breaks.
5. Perform stretches to relieve tension in the neck,
arm, back, and shoulders during the breaks.
• Movie: Loads color settings ideal for movies.
• Game: Loads color settings ideal for most gaming
applications.
• Color Temp.: Allows you to select the color
temperature: 5000K, 5700K, 6500K, 7500K,
9300K, and 10000K. Press the joystick to confirm
the selection.
• Color Space: Allows you to set the color space
to:
- sRGB: matches 100% sRGB.
- DCI-P3: reproduces 95% of DCI-P3 digital
cinema color standard.
Operating the monitor
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