LG 27UN850 User Manual (English)

Questions and Answers:

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Jennifer SmithJul 29, 2025
How to fix LG Monitor when nothing is displayed on the screen?
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  Joshua OrtizJul 29, 2025
  If nothing is displayed on your LG Monitor screen, first, ensure the power cord is correctly plugged into the power outlet. Next, verify the power cable connection and press the power button. Then, check that the connected input is enabled in the monitor settings (Settings > Input). If the issue persists, inspect the signal cable between your PC and the monitor, ensuring it's properly connected. Lastly, confirm that the signals transferred from your PC (graphics card) are within the horizontal or vertical frequency range supported by the monitor. Refer to the Product Specification section of the manual to set the appropriate frequency.
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Jason RomeroAug 2, 2025
Why is there no sound on my LG Monitor?
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  Susan MillerAug 3, 2025
  If images are displayed without sound on your LG Monitor, ensure that the headphone port connections are correctly made. You can also try increasing the volume using the joystick on the monitor. Finally, set the audio output of your PC to the monitor you are using. Note that the exact settings may vary depending on your operating system.
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Heather MasonAug 7, 2025
What to do if LG 27UN850 Monitor screen display is unstable and shaky?
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  Anne PottsAug 7, 2025
  If the screen display on your LG Monitor is unstable and shaky, or if images leave shadow trails, and the resolution is set to HDMI 1080i 60/50 Hz (interlaced), the screen may be flickering. Try changing the resolution to 1080p or the recommended resolution. In addition, not setting the graphics card to the recommended (optimal) resolution may result in blurred text, a dimmed screen, a truncated display area, or misalignment of the display. The setting methods may be different depending on the computer or operating system, and some resolutions may not be available depending on the performance of the graphics card. If this is the case, contact the manufacturer of the computer or graphics card for assistance.
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Heather WebbAug 13, 2025
What to do if my LG Monitor says "Unrecognized monitor, Plug and Play (VESA DDC) monitor found"?
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  Brandon BakerAug 13, 2025
  If you see an "Unrecognized monitor, Plug and Play (VESA DDC) monitor found" message on your LG Monitor, be sure to install the display driver from the LG website: http://www.lg.com. Also, make sure to check if the graphics card supports the Plug and Play function.
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Scott HudsonAug 18, 2025
Why are some functions not available when I press the Menu button on my LG Monitor?
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  coxshellyAug 18, 2025
  If some functions are not available when you press the Menu button on your LG Monitor, it might be because the OSD is locked. To resolve this, disable OSD Lock in the General settings.
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Tanya BeckAug 22, 2025
Why does image sticking occur on my LG 27UN850 even when it's off?
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  Paula NelsonAug 22, 2025
  Displaying a still image for a prolonged time may cause damage to the screen of your LG Monitor, resulting in the retention of the image. To extend the lifetime of the monitor, use a screensaver.

LG 27UN850 Specifications

General

Screen Size	27 inches
Resolution	3840 x 2160 (4K UHD)
Panel Type	IPS
Aspect Ratio	16:9
Refresh Rate	60 Hz
Response Time	5 ms (GtG)
Color Support	1.07 billion colors
HDR	HDR10
Ports	2 x HDMI, 1 x DisplayPort
USB Ports	2 x USB 3.0
VESA Mount	100 x 100 mm
Contrast Ratio	1000:1
Color Gamut	DCI-P3 95%
Speakers	Yes, 2 x 5W
Viewing Angle	178° (H) / 178° (V)
Brightness	350 cd/m²
USB-C	1 x USB-C
Stand Adjustments	Tilt, Pivot, Height