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To more fully realize content creators’ vision, this monitor is compatible with industry-standard HDR10 high dynamic range, supporting specific levels of color and brightness that exceed the capabilities of ordinary monitors.
*Depending on the Windows 10 OS settings, HDR content may not be displayed accurately. Please check the HDR On/Off setting of Windows. The HDR setting of Windows defaults to "On" and should be set to "Off" when not viewing HDR content. Images simulated. (A software update will be made available)
The HDR Effect helps transform non-HDR content into high quality video that looks like HDR through its picture quality algorithm.
IPS with sRGB 99% (Typ.)
This monitor, with 99% coverage of the sRGB spectrum, is a great solution for photographers, graphic designers or anyone looking for highly accurate color.
HDCP 2.2 Compatible
Connect with confidence: This LG 4K monitor is compatible with the latest HDCP 2.2 copy protection, so it will display video from 4K streaming services, game consoles and Ultra HD Blu-ray disc players.
Virtually Borderless Design
The ultra-thin bezel on three sides of this streamlined display offers a virtually borderless visual experience, without distraction from the precise, gorgeous image. A sleek addition to any desktop.
Offering a new generation of convenience, USB Type-C™ports allow 4K video display, data transfer and laptop/mobile device charging, all at the same time over a single cable. Reduce cord clutter and increase efficiency with USB Type-C™.
With FreeSync*, gamers can experience seamless, fluid movement throughout hi-res, fast-paced games. FreeSync virtually eliminates screen tearing and stuttering.
*FreeSync is only available when it is connected to Display Port or HDMI.
Advanced Gaming Features
Serious gaming features for serious gamers. Quickly optimize monitor settings to activate Black Stabilizer to reveal superior detail in dark scenes while the Dynamic Action Sync feature assures smooth, fluid gaming action.
On-Screen Control puts a host of essential monitor settings into a handy window for quick, easy access. Volume, brightness, picture mode presets, Screen Split 2.0 and Dual Controller and more can now be adjusted with just a few clicks of the mouse, instead of hard buttons on the monitor.
4.1" x 22.0" x 9.2" (Up)/4.1" x 17.7" x 9.2" (Down)
Without Stand (WxHxD)
24.1" x 14.3" x 1.8"
Shipping Dimensions (WxHxD)
27.2" x 19.4" x 8.2"
With Stand Weight
Without Stand Weight
HDMI & DP & USB-C , Yes (2.2)
Plug & Play
Six Axis Control
On Screen Control
1 Year Parts & Labor
Screen Size Class (diagonal)
10bit(8bit + A-FRC)
Pixel Pitch (mm)
Typical 350nits,Min 280nits
sRGB 99% (Typ)
Contrast Ratio (DFC)
178/178 (CR≥10) (Typ)
Yes (1.5m White Cable, PD+DP+Data, UHD@60Hz)
USB Down-Stream (ver 3.0)
2 downstream (No Service Only Port, ver 3.1 gen1)
Yes x2 (HDR support)
VESA® Size (mm)
100 x 100
Easy Setup Guide
Calibration Report (Paper)
DP to DP
5W x 2
S/W Install CD
What people are saying
Rated 5 out of
Great monitor for MacBook ProI bought this monitor to replace an older ASUS my grandson had designs on. I selected it because it uses a single USB-C connection to supply both the MacBook’s video and power requirements. The 65W power supply charges MacBook quickly, and the video is excellent. With my settings, the power supply is turned off when the monitor is turned off; it does charge the computer when asleep. The supplied cables are high quality.
Date published: 2019-09-13
Rated 5 out of
Stefan Popov from
Great qualityIt’s great, with minimal input lag and backlight bleed, its a great monitor for console gaming
Date published: 2019-09-03
Rated 5 out of
Great image.Using as a second display for my MacBook Air. The 4K image is amazing.
Ask your questions. Share your answers. Please review the detailed product information and help guides in the Product Support section for this product prior to posting a question.
I want to buy the LG 27UK850-W for my mid-2015 iMac (5k; Thunderbolt 2). I'll buy a USB-C computer in 2021:
1.) Can I connect the monitor to my current iMac using Apple's Thunderbolt 3 (USB-C) to Thunderbolt 2 adapter?
2.) Will it run at 4k @ 60Hz?
Asked by: aimson
The LG 27'' Class 4K UHD IPS LED Monitor with HDR 10 (27'' Diagonal), Model # 27UK650-W has a native resolution of 3840 x 2160 & a Refresh Rate of 60Hz. It features a DisplayPort input, 2 x HDMI ports & a USB-C port. All the ports support 4K @ 60Hz. You will need to check the specification for the adapter that you intend to use to connect to the monitor & the GPU in your computer to make sure that they support 4K @ 60Hz...^IFV
Answered by: Ivanf
Date published: 2019-08-16
Need supported graphic cards for LG27UK850-W lcd.
Kindly suggest 2Gb and 4 gb 4k/5k graphic cards for this model no.
Asked by: VikramKadam
The LG 27'' Class 4K UHD IPS LED Monitor with HDR 10 (27'' Diagonal), Model # 27UK850-W features AMD FreeSync™ Technology so it will work with any AMD GPU's that support its Refresh rate (60Hz) and its native resolution (3840 x 2160). It features a USB-C port and an HDMI port for connectivity...^IFV
Answered by: Ivanf
Date published: 2019-08-14
Is LG Joel appropriately recognized by his manager as being a really diligent support person? I'm quite impressed at the specificity of responses to Qs...
Since that wasn't one: How to best compare 27UK850-W with 27ud88-W and 28mu88-W?
Asked by: zumboo
The compliment is greatly appreciated and the most rewarding aspect of the recognition is your acknowledgment and that you have taken the time to express it. The whole purpose is to provide you and our clients with the best responses possible and your post serves as feedback that lets us know that we are on the right track. Thank you!
The LG 27" Class 4K UHD IPS LED Monitor with HDR 10 (27" Diagonal), Model # 27UD850-W, the LG 27" Class 4K UHD IPS LED Monitor (27" Diagonal), Model # 27UD88-W and the LG 27” class (27” diagonal) Ultra HD 4K Monitor, Model # 27MU88-W have very similar specifications and features with few differences. The 27MU88-W is a monitor from our Business/Commercial division while the 27UK850-W and the 27UD88-W are from our Consumer division. Business/Commercial monitors typically come with a 3-Year Limited Warranty for parts, labor and the backlight as is the case for the 27MU88-W. Our consumer monitors come with a Limited Manufacturer's Warranty of 1-Year for parts and labor. As you have ascertained from the title descriptions, one difference is that Model # 27UK850-W supports HDR while Model # 27UD88-W & Model # 27MU88-W do not. Other differences are that the 27UK850-W and the 27MU88-W have a matte screen that has an Anti-Glare 3H Surface Treatment while the 27UD88-W does not. The 27UK850-W and the 27MU88-W are VESA compliant monitors and both have the same A x B VESA Wall Mount Interface pattern of 100 x 100mm, the 27UD88-W is not wall mountable. The stand for the 27UK850-W and the 27MU88-W are height adjustable, they can be tilted (Tilt Angle for the 27UK850-W is -5~20 Degrees and is -3~20 for the 27MU88-W), and they allow you to pivot the monitor. The stand for the 27UD88-W is fixed. The 27UK850-W is the only one of these monitors that has built-in speakers (2 x 5W), the 27MU88-W is the only one that supports multiple languages (16 languages). The 27UD88-W and the 27MU88-W have a DICOM mode (DICOM - Digital Imaging and Communications in Medicine — is the international standard for medical images and related information (ISO 12052). It defines the formats for medical images that can be exchanged with the data and quality necessary for clinical use.)...^IFV
Answered by: Ivanf
Date published: 2019-04-11
I am able to use the USB A port to connect my keyboard and use type-C port to connect my MacBook and use the keyboard on the Mac. However, can I also use the HDMI to connect a PC and also use the keyboard on that PC?
Asked by: MichaelCh
You can visit the support page for the LG 27" Class 4K UHD IPS LED Monitor with HDR 10 (27" Diagonal), Model # 27UK850-W and download the Dual Controller software. Dual Controller is application software that lets the user control multiple Windows and Mac systems using a shared keyboard and mouse attached to one computer. It is designed for people who often use more than one system placed next to each other. With Dual Controller Software, the user can share a single keyboard/mouse across a set of systems (Windows/MAC). The software is packaged as an Install Shield installation package...^IFV
Answered by: Ivanf
Date published: 2019-04-03
So it says its 60hz at 4k but if i ran it at 1080 or 2k what kind of refresh rates does this monitor have. Will it do 144hz or 165hz?
Asked by: curiouscustomer123
The LG 27" Class 4K UHD IPS LED Monitor with HDR 10 (27" Diagonal), Model # 27UK850-W has a native refresh rate of 60Hz as you have noted. The monitor does not support a higher refresh rate even if you use a lower resolution...^IFV
Answered by: LGJoel
Date published: 2019-03-11
Hi, I have a 2017 Macbook Pro with Touchbar, Intel Iris Plus Graphics 650 1536 MB graphics. Can I get 60hz 4k by connecting it to this monitor via the USB-C to USB-C included in the box? Thanks
Asked by: Danfrin
The USB Type-C™port on this LG 27" Class 4K UHD IPS LED Monitor with HDR 10 (27" Diagonal), Model # 27UK850-W allows 4K video display, data transfer and laptop/mobile device charging, all at the same time over a single cable...^IFV
Answered by: LGJoel
Date published: 2019-02-11
Is it possible to leverage both DP input and USB-C hub functionality simultaneously? I would like to connect this display directly to eGPU using DP and also run USB-C from mac to display to connect mouse and keyboard,
Asked by: jackie2707
The DisplayPort and USB Type-C™ ports on the LG 27" Class 4K UHD IPS LED Monitor with HDR 10 (27" Diagonal), Model # 27UK850-W are independent of one another so you can use them simultaneously. The USB Type-C™ is a single port that allows 4K video display, data transfer and laptop/mobile device charging, all at the same time over a single cable. The USB ports that are on a hub on this monitor are the 2 x USB 3.1 Gen 1 Down-Stream ports that you can plug peripheral devices such as thumb drives, printers etc., ^IV
Answered by: LGJoel
Date published: 2019-02-05
I have a Mac Pro late 2013, can I connect 2 27uk850-w + the apple Cinema Display that have ?
Asked by: jokavivo
You cannot daisy chain the LG 27" Class 4K UHD IPS LED Monitor with HDR 10 (27" Diagonal), Model # 27UK850-W, but if the Graphics card in your Mac Pro Late 2013 supports a dual monitor setup then you can connect 2 of these monitors to it...^IFV
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