To properly experience our website, you will need to use an alternate browser or upgrade to a newer version of internet Explorer (IE9 or greater).

The website utilizes responsive design to provide convenient experience that conforms to your devices screen size. In order to get the best possible experience our LG.COM website please follow below instructions.

If you’re using Internet Explorer 8 or earlier, you will need to use an alternate browser such as Firefox or Chrome or upgrade to a newer version of internet Explorer (IE9 or greater).

If you’re using Internet Explorer 9 and higher, turn off your Internet Explorer browser’s “Compatibility View settings” by following steps below:

  • Right click at the top of your browser and make sure the “Menu Bar” option is selected
  • Select “Tools” from the menu bar and then select “Compatibility View settings”
  • In the pop-up menu uncheck all three boxes and click “Close”
  • Your browser window will automatically refresh and you’ll be ready to go
Skip to Contents Skip to Accessibility Help

27" Class 4K UHD IPS LED Monitor with HDR 10 (27" Diagonal)

  • 27UK850-W

Key Features

  • 27 Inch 4K UHD IPS Monitor
  • HDR 10
  • USB Type-C™
  • sRGB 99% Color Gamut
  • AMD FreeSync™ Technology
  • 3-Side Virtually Borderless Display
HDR 10

   HDR 10   

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)

HDR Effect

HDR Effect

The HDR Effect helps transform non-HDR content into high quality video that looks like HDR through its picture quality algorithm.

Images simulated.

sRGB 99%25252525252525 (Typ.)

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

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.

27UK850-W Virtually Borderless Design

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.

USB Type-C™

USB Type-C™

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™.

27UK850-W AMD FreeSync™

AMD FreeSync™

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

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

On-Screen Control

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.

Learn More


Watch how the On-Screen Control feature can help configure your display for maximum organization and efficiency.

On-Screen Control

Software download required to enable OnScreen Control. For download details, visit

Ergonomic Stand

Ergonomic Stand

The sleek design of LG premium monitors is accentuated by the ArcLine stand. The smooth curve of the base provides stability, assuring dependable performance with a touch of elegance.

Screen Size 27"
Panel Type IPS
Color Gamut (CIE1931) sRGB 99% (Typ)
Color Depth(Number of Colors) 10bit(8bit + A-FRC)
Pixel Pitch(mm) 0.1554x0.1554
Response Time (GTG) 5ms (Faster)
Aspect Ratio 16:9
Resolution 3840x2160
Brightness Peak 450nits, Typical 350nits,Min 280nits
Contrast Ratio 1000:1(Typ)
Viewing Angle 178/178 (CR≥10) (Typ)
Surface Treatment Anti-Glare 3H
HDMI Yes x2 (ver 2.0), (HDR support)
DisplayPort Yes x1 (ver 1.2), (HDR support)
USB Type-C Yes x1 (ver 3.1 - Gen1) PD 60W / DP Alternate Mode / Data
Headphone Out Yes
USB Down-stream 2 downstream (No Service Only Port, ver 3.1 gen1)
Type Adapter (140W)
Input 100~240V (50/60Hz)
Normal On (EPA Typ.) 32W
Normal On (factory out condition Typ.) 50W
Power Save/Sleep Mode (Max) 0.5W
DC Off (Max) 0.3W
sRGB Yes
HDCP HDMI & DP & USB-C , Yes (2.2)
Plug & Play Yes
Adaptive Sync AMD FreeSync™
DAS Mode Yes
Flicker Safe Yes
SIX Axis Control Yes
Reader Mode Yes
Factory Calibrated Yes
H/W Calibration (True Color Pro) Yes
Dual Controller Yes
On Screen Control (OSC) Yes
Super Resolution+ Yes
Black Level Yes
HDR (High Dynamic Range) Yes
Speaker 5W x 2
Speaker Type MAXXAudio®
With Stand (WxHxD) 24.1" x 22.0" x 9.2"
Without Stand (WxHxD) 24.1" x 14.8" x 1.8"
Shipping Dimensions (WxHxD) 27.2" x 19.4" x 8.2"
With Stand Weight 13.4 lbs
Without Stand Weight 10.6 lbs
Shipping Weight 19.8 lbs
Base Detchable Yes
Tilt(Angle) -5~20 Degree
Height(mm) 110mm
Pivot Yes
VESA size (mm) 100 x 100
Power Cord Yes (White)
DP to DP Yes (White)
HDMI Yes (White)
USB Type-C Yes (1.5m White Cable, PD+DP+Data, UHD@60Hz)
S/W Install CD Yes
Easy Setup Guide Yes
Calibration Report (Paper) Yes
UL(cUL) Yes
TUV-type Yes
EPEAT Gold Yes
KC Yes
EPA 7.0 Yes
ErP Yes
Windows 10 Yes
DisplayPort Yes
Limited Warranty 1 Year Parts and Labor
UPC 719192617476

What People Are Saying

  • bvseo_sdk, java_sdk, bvseo-
  • CLOUD, getReviews, 4ms
  • bvseo-msg: The resource to the URL or file is currently unavailable.;

We're here to support you with our product.

View 27UK850-W Product Support

Contact us for any support inquiries.


Ask your questions. Share your answers.
Please first review the detailed product information and help guides in the Product Support section for this product prior to posting a question.

1.Can it be used in Korea?? I mean using it with 220voltage can be possible?? 2. where can I check the built-in speaker spec???? Thank you

Asked by: KOO JOHN
This unit is designed to be used in the USA and the speakers are 5W. ^AC
Answered by: Amber C
Date published: 2018-02-12

Does the 27UK650-W have Hardware Calibration like the 850 has?

Asked by: Jimmy444
[MAC] True Color Pro 3.8.6 and [Windows] True Color Pro 3.9.0 is optional for the LG 27" Class 4K UHD IPS LED Monitor with HDR 10 (27" Diagonal), Model # 27UK850-W. It can be downloaded from the monitor's support page at This monitor has Calibrate 1 and Calibrate 2 functions in its settings menu. The 27" Class 4K UHD IPS LED Monitor with HDR 10 (27" Diagonal), Model # 27UK650-W does not have the Calibrate 1 or Calibrate 2 functions and does not have any available downloads for True Color Pro...^IFV
Answered by: LGJoel
Date published: 2018-02-08

There is no input lag in the description on this 27UK850-W model. May I ask what the input lag is?

Asked by: Terry44
Hi Terry44. Your interest in the LG 27" Class 4K UHD IPS LED Monitor with HDR 10 (27" Diagonal), Model # 27UK850-W is greatly appreciated. Regrettably, input lag is not an official TV or monitor specification because it depends on two varying factors: the type of source and the settings of the monitor, so you will not find it listed for any of those products. There are various methods used for determining the input lag of a monitor and the results will vary depending on the method used. Input lag tests are also done for the lowest lag a monitor is capable of achieving while using its native resolution or for the lowest lag a monitor is capable of achieving while using a non-native resolution. It is also done for when a monitor is displaying HDR content. There are online sites who perform these tests and show the results on their site. The 27UK850-W is a new monitor and you probably will not find any input lag test results yet since it has yet to be tested...^IFV
Answered by: LGJoel
Date published: 2018-02-19

So what is the difference between the 27UK850-W and the 27UK650-W? And don’t give me some tech answer because I don’t understand that stuff. One has usb connectivity c and one doesn’t is that the only difference?

Asked by: Jim2121
Hi Jim2121. Please visit the product pages for the LG 27" Class 4K UHD IPS LED Monitor with HDR 10 (27" Diagonal), Model # 27UK650-W and Model # 27UK850-W on our site. Under the 'Where To Buy' button next to the 'Suggested Price' for each of these monitors is an 'Add to Compare' check box that you can check for each unit that will change to 'Compare' and will allow you to compare these units side by side. There is also an option to show the 'Differences' between these units. If any of the comparisons have features that are too technical, we would be more than happy to explain them in layman's terms for you...^IFV
Answered by: LGJoel
Date published: 2018-02-19

Would this Monitor be very good for a Xbox one x? 

Asked by: Chance44
The LG 27" Class 4K UHD IPS LED Monitor with HDR 10 (27" Diagonal), Model # 27UK850-W has a resolution of 3840 x 2160, an Aspect Ratio of 16:9, a 5 ms(High) Gray-to-Gray Response time, a 178˚ viewing angle. It features 2 x HDMI version 2.0 ports and a version 1.2 Display Port, all of which support HDR10 and both HDMI ports are HDCP 2.2 compliant. If also features Advanced Gaming Features for serious gamers and its settings can be quickly optimized to activate the Black Stabilizer feature to reveal superior details in dark scenes while the Dynamic Action Sync feature assures smooth fluid gaming action...^IFV
Answered by: LGJoel
Date published: 2018-02-05

Is the HDMI cable that comes with this monitor (the included one) 4k and HDCP 2.2 compliant? Lastly, when does this monitor come out?

Asked by: Abidur Abir
HDCP 2.2 compliance is not a built-in specification for HDMI cables, that is a specification for the HDMI ports used on TVs and monitors. To find stores in your area or online retailers who will be carrying this LG 27" Class 4K UHD IPS LED Monitor with HDR 10 (27" Diagonal), Model # 27UK850-W, please click on the 'Where to Buy' button on its product page on our site and enter your zip code in the appropriate field to open a page that will give you a list of those retailers and online sites. You will need to contact them for availability. Stores will receive their shipments of these monitors at different times and they can better provide you dates or estimated dates for when they expect to have the monitors in stock...^IFV
Answered by: LGJoel
Date published: 2018-01-30

I am interested in this monitor, but the product page does not say if it's HDCP 2.2 compatible. The lower end model (27UK650-W) is HDCP 2.2 compatible, according to its product page. My question, is this monitor (27UK850-W) HDCP 2.2 compatible?

Asked by: Abidur Abir
The LG 27" Class 4K UHD IPS LED Monitor with HDR 10 (27" Diagonal), Model # 27UK850-W is a 4K monitor and for it successfully stream 4K or 4K HDR content, all devices connected via HDMI® to the monitor and the monitor's HDMI® ports would have to be HDCP 2.2 compliant. If even one device does not support HDCP 2.2, then the 4K or 4K HDR content can only be viewed in a lower resolution, such as 720p or 1080p. HDCP 2.2 is specifically designed for 4K Ultra HD (4K) content, as well as movies and TV shows available with High Dynamic Range (4K HDR)...^IFV
Answered by: LGJoel
Date published: 2018-01-28

what is the defferenve between 27UK850-W and 27uk650-w,only the usb tupe c or there is more?the hdr in 27uk650-w has brightness 350cd/m²,in 27uk850-w?

Asked by: foryou65
In the specifications for the monitor, the specifications for Brightness are listed as Brightness --- Peak 450nits, Typical 350nits, Min 280nits. VESA is the first standards body to publicly develop a test tool for HDR qualification, DisplayHDR, utilizing a methodology for the tests that end users can apply without having to invest in costly lab hardware. DisplayHDR is the High-Performance Monitor and Display Compliance Test Specification (DisplayHDR) from VESA that defines the display industry’s first fully open standard specifying HDR quality, including luminance, color gamut, bit depth and rise time. The DisplayHDR test tool will be available in Q1 2018. For consumers, the three new logos of DisplayHDR-400 (low-end), DisplayHDR-600 (mid-range), and DisplayHDR-1000 (high-end) represent discrete and publicly defined levels of HDR capabilities. Broadly speaking, each level has higher minimum requirements for luminance, contrast, and color gamut. The Full-screen Long-duration Minimum Requirements (cd/m2) for DisplayHDR-400 and DisplayHDR-600 are 320 and 350 respectively. This specification ensures display power and thermal capabilities support bright lighting image conditions that may exist in static scenes or images, or during content creation including photographs...^IFV
Answered by: LGJoel
Date published: 2018-02-07
  • y_2018, m_2, d_21, h_2CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.7
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_8
  • loc_en_US, sid_MD05913416, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_lg
  • bvseo_sdk, java_sdk, bvseo-
  • CLOUD, getContent, 5ms