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4K UHD HDR Smart LED TV - 55" Class (54.6" Diag)

  • 55UJ7700

Key Features

  • webOS 3.5 Smart TV
  • Active HDR with Dolby Vision™
  • True Color Accuracy

webOS 3.5 Smart TV

webOS brings together all of the most popular streaming video apps, including Netflix, brought to life in 4K, HDR or enhanced with HDR Effect. And webOS gives you access to more than 70 free premium Internet channels through the LG Channel Plus app.

Please check with content providers for both required bandwidth to stream videos. Smart service on product is subject to change. Some apps that appear on the screen image may not be preinstalled; internet connection is required for download.

Channel Plus

Channel the Internet

Get free IP channels including Sports Illustrated, TIME, People and more integrated right into the television. Discover premium new entertainment, sports and lifestyle programming or enjoy old favorites any time.

Watch what you want, when you want

Netflix Recommended TV recognizes Smart TVs that meet strict criteria for a superior Netflix experience, such as easy app access and new features. For the third year in a row, LG TVs have the distinction of being recommended by Netflix!

Netflix streaming membership required. Ultra HD availability subject to your Netflix subscription plan, Internet service, device capabilities, and content availability. Visit

Enjoy the most HDR content

From brilliant brights to deepest darks, this LG UHD TV offers the ultimate expression of high dynamic range. Unlike some other 4K televisions, this LG UHD TV supports Dolby Vision™, optimizing the picture scene-by-scene, as well as the new backward-compatible HLG HDR standard so viewers get more options for premium content.

Learn more about Active HDR with Dolby Vision


This LG UHD TV supports the premium HDR, Dolby Vision™ favored by renowned filmmakers from all over the world. This LG UHD TV not only delivers Dolby Vision, but also offers compatibility with other HDR formats such as HDR10 and HLG.

This LG UHD TV supporting premium HDR Dolby Vision™, processes Dolby Vision’s dynamic metadata* within each frame, to present the intended vision of the director in your very own living room. HDR10 and HLG are rendered by this LG UHD TV’s exclusive processing. By applying dynamic data produced by LG TV processing on a scene-by-scene basis, all types of content is displayed with improved HDR quality.

Dolby and the double-D symbol are registered trademarks of Dolby Laboratories. Dolby Vision is a trademark of Dolby Laboratories.

True to Life Color

See a more accurate, natural picture with advanced color mapping. True Color Accuracy automatically corrects color distortions for vibrant, lifelike color.

More consistent color and contrast from any seat

The IPS technology in LG TV uses in-plane switching to deliver rich colors and a strong contrast ratio that remain consistent at wide viewing angles. With IPS technology, any seat becomes the best in the house.

Diagonal Class 55 inches
Diagonal Size 54.6 inches
Resolution 3840 x 2160
Display Type 4K UHD TVs
Display Format 4K UHD 2160p
HDMI Port(s) 4 (HDCP 2.2)
Other Input(s) 2 USB, 1 RF In (Antenna/Cable), 1 Composite In, 1 Component In (Shared w/ Composite), 1 Ethernet, 1 Optical
Smart TV Operating System webOS 3.5
Speaker System 2 Channel
Other Features Active HDR with Dolby Vision™, Wider Color Gamut, Ultra Luminance
ULTRA HD (3840x2160) Yes
Refresh Rate TruMotion 120 (Refresh Rate 60Hz)
Active HDR with Dolby Vision™ Yes
HDR Effect Yes
Wider Color Gamut Yes
True Color Accuracy Yes
IPS Technology Yes
ULTRA Luminance Yes
4K Upscaler Yes
Local Dimming Yes
webOS 3.5 Yes
Magic Remote Control Yes
Natural Voice Recognition Yes
Universal Control Capability Yes
LG Content Store (App Store) Yes
Full Web Browser Yes
Channel Plus Yes
Screen Share Yes
Content Share Yes
Speaker System 2 Channel
Output Power 20W
DTS Decoder DTS-HD
Surround Mode Ultra Surround
Hi-Fi Audio Yes
Wireless Sound Sync Yes
Wi-Fi® Built-In 802.11ac
Wi-Fi® Direct Yes
IP Control Yes
Simplink (HDMI CEC) Yes
HDMI® 4 (HDCP 2.2)
RF in (Antenna/Cable) 1
Composite In 1
Component In 1 (shared with composite)
Ethernet 1
Optical 1
Power Supply (Voltage, Hertz) 100~240Vac, 50~60Hz
Standby Mode Less than 0.5W
VESA 300 x 300
TV without Stand (WxHxD) 48.7" x 28.6" x 2.4"
TV with Stand (WxHxD) 48.7" x 30.6" x 9.2"
TV Shipping Dimensions (WxHxD) 53.5" x 32.9" x 6.0"
TV without Stand Weight 34.6 lbs
TV with Stand Weight 35.1 lbs
Shipping Weight 45.6 lbs
UPC 719192611481

What People Are Saying

Rated 5 out of 5 by from my first 4k ultra HD TV I Looked online a few times a week for a few months compairing Tv's .....I had a list of features and a buget .....this LG tv was a perfect match and I was worried something would disappoint ...surely it was too good to be true...... Everything from the payment to the in-store pickup was a fantastic experience .....when i hooked the tv up setup was a breeze and WebOS 3.5 is very user friendly I would recommend a LG tv to anyone looking to buy
Date published: 2017-06-19
Rated 4 out of 5 by from Great TV, BUT The TV is wonderful, but the manual is terrible. Its pretty much trial and error to learn how to use the functions. Also, I wanted to view photos and videos on the TV which are stored on my computer, but am not able to, since I have Windows 10, and an AMD processor. Evidently this only works for Inter based computers. They could have said so up front.
Date published: 2017-06-06
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We're here to support you with our product.

View 55UJ7700 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.

is there an alternate stand that one can buy for this 49 inch LG?

Asked by: Jefferson101
The stand legs that come as included accessories with the LG 4K UHD HDR Smart LED TV - 49" Class (48.5" Diag), Model # 49UJ7700 designed for this TV and there regrettably aren't any other alternatives...^IFV
Answered by: LGJoel
Date published: 2017-05-16

I think the box said the speakers were Harmon Kardon, but it does appear anywhere else that I can find?

Asked by: eedixon
We appreciate your interest in this television and its features. Our records show that this model has been designed with Harmon Kardon speakers, even though this is likely not posted anywhere on the TV itself.
Answered by: NeilE
Date published: 2017-05-12

Why is this TV going to be 60 Hz Refresh Rate when the previous model was 120 Hz? That seems like a downgrade to me? I know it has Trumotion 120 but the 55uh7700 had Trumotion 240

Asked by: Tyru2
I asked this same question. Seems LG does not want to address this! As to the posted answer, it is incorrect. The previous year model had 120hz native refresh rate and this model has only 60hz refresh rate. It is definitely a downgrade. To get the 120 rate you now must upgrade to a higher model that is more expensive! I have yet to hear a response from LG.
Answered by: mkln
Date published: 2017-05-07

does the 60 HJ 7700 have 3D?

Asked by: johnl327
The LG 4K UHD HDR Smart LED TV - 60" Class (59.9" Diag), Model # 60UJ7700 does not support or have 3D...^IFV
Answered by: LGJoel
Date published: 2017-04-20

Good day, I was wondering what type of wall mount I need for this t.v.?

Asked by: Galvatron847
We appreciate your interest in this television and its accessories. This model is designed to utilize the model LSW350B mounting bracket, or another with a 300mm x 300mm bolt spacing.
Answered by: NeilE
Date published: 2017-04-05

Where Can I Purchase An Original LG Remote That Originally Comes With This Tv?

Asked by: Andres1818
Parts and accessories can be obtained through our parts distributor, MCM Electronics. Their contact number, for placing orders, is 800-824-9491. You can also use their website, at The part number for this item is: AGF78700101.
Answered by: NeilE
Date published: 2017-04-04

Why does the LG go black and shut off does it have sensors on it

Asked by: Brate
We regret the inconvenience you have experienced with this television and its operations. There are certain sensors on the TV, as well as built in timers which are provided for energy efficiency and product protection. Please contact our Customer Interactive Center at 800-243-0000 to advise what is happening with the TV when these symptoms occur.
Answered by: NeilE
Date published: 2017-03-18

Is the Tuner for the US model ATSC 3.0?

Asked by: mackie
HI Mackie. We wanted to amend our response to the our previous answer. Once again, thank you for your inquiry. Your interest in the LG 4K UHD HDR Smart LED TV - 65" Class (64.5" Diag), Model # 65UJ7700 is appreciated. The tuner in this television is still the ATSC 1.0 tuner, but TVs sold in Korea due to the early availability of ATSC 3.0 in Korea, will also have an ATSC 3.0 tuner. In the U.S., the standards for ATSC 3.0 have not yet been finalized so there is still uncertainty as to if it will be backward compatible. At the end of March one of the major components of the standard, "System Discovery and Signaling," which is how the new signal will be found by tuners, was finalized but that is one small part and is the beginning step for the roll-out. The new FCC Chairman has already circulated a Notice of Proposed Rulemaking to the other commissioners that would allow TV stations to start rolling out the ATSC 3.0 advanced TV transmission standard on a voluntary basis and hopes to issue a final authorization for the new standard by the end of the year. Currently, the NPRM authorizes the voluntary use of ATSC 3.0 while requiring stations to continue to deliver an ATSC 1.0 version of their signals. It also proposes to require MVPDs to continue to carry the ATSC 1.0 signal but does not require them to carry ATSC 3.0 during the transition to a new standard. So units sold in the U.S. will only have the ATSC 1.0 tuner with anticipation for U.S. broadcasters’ Next Gen TV rollout plans in 2018...^IFV
Answered by: LGJoel
Date published: 2017-03-17
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