4K UHD Smart LED TV - 84'' Class (84.0'' Diag)


  • 4K Resolution
  • IPS Panel
  • Tru-4K Engine Pro
  • HEVC Decoder
4K UHD Smart LED TV - 84" Class (84.0" Diag)


    • Screen Size
    • 84"


    • Premium Content
    • Yes
    • Full Web Browser
    • Yes
    • Magic Remote Control
    • Yes
    • Natural Voice Recognition
    • Yes
    • Universal Control Capability
    • Yes
    • Launcher Bar
    • Yes
    • Games
    • Yes
    • Easy Setup
    • Yes
    • Recent/Multitasking
    • Yes
    • LivePlus
    • Yes
    • Live Menu
    • Yes
    • LG Content Store (App Store)
    • Yes

Smart Share

    • Media Share
    • Yes
    • - Remote App
    • Yes
    • - Network File Browser
    • Yes
    • - YouTube Send-to-TV
    • Yes
    • Screen Share
    • Yes
    • - MHL (Mobile HD Link)
    • Yes
    • - Miracast
    • Yes
    • - WiDi
    • Yes


    • Speaker System
    • 5.2 Speaker System
    • Audio Output Power (Watts - THD 10%)
    • 120W
    • Mono/Stereo/Dual (MTS/SAP)
    • Yes
    • Dolby® Digital Decoder
    • Yes
    • DTS Decoder
    • Yes
    • Sound Designed by harman/kardon®
    • Yes
    • Subwoofer
    • Yes
    • Sound Mode
    • 6 Modes
    • Clear Voice II
    • Yes
    • Sound Optimizer
    • 3 Modes
    • Optical Sound Sync
    • Yes
    • Wireless Sound Sync
    • Yes


    • Wi-Fi® Built-in
    • Yes
    • Wi-Fi Direct
    • Yes
    • Yes
    • USB
    • Yes
    • - Video
    • DivX HD
    • - Photo
    • JPEG, JPS, MPO
    • - Audio
    • AC3 (Dolby Digital), EAC3, HE-AAC, AAC, MPEG, MP3, PCM, DTS


    • RF In (Antenna/Cable)
    • 1 (Rear)
    • Component Video In(Y, Pb, Pr + Audio)
    • 1 (Rear)
    • Composite In (AV)
    • 1 (shared w/Component)
    • HDMI®
    • 4 HDMI (Side) *1 HDMI input supports HDCP 2.2
    • USB 3.0/2.0 In
    • 1/2 (Side)
    • Digital Audio Out (Optical)
    • 1 (Rear)
    • LAN
    • 1 (Rear)
    • RS-232
    • 1 (Rear)


    • Power Supply (Voltage, Hz)
    • 100V ~ 240V, 50/60 Hz
    • Standby Mode
    • 0.3W


    • TV without Stand (WxHxD)
    • 79.7" x 43.8" x 3.4"
    • TV with Stand (WxHxD)
    • 79.7" x 46.1" x 13.5"
    • TV without Stand weight
    • 162.5 lbs
    • TV with Stand weight
    • 171.3 lbs
    • TV Shipping Dimensions (WxHxD)
    • 85" x 49" x 13"
    • Shipping Weight
    • 205 lbs

Warranty / UPC

    • Limited Warranty
    • 1 Year Parts & Labor
    • UPC
    • 719192593893


    • Screen Size Class (diagonal)
    • 84" Class (84" diagonal)
    • Resolution
    • 3840 x 2160
    • Display Type
    • LED
    • UCI (Ultra Clarity Index)
    • 1560
    • TruMotion 240Hz
    • Yes


    • Tru 4K Engine Pro
    • Yes
    • 4K Resolution Upscaler
    • Yes
    • Tru Color Generator
    • Yes
    • Dynamic Color Enhancer
    • Yes
    • Aspect Ratio
    • 8 Modes
    • Just Scan (1:1 Pixel Matching)
    • HDMI: 1080i, Component: 1080p, RF 720p
    • Real Cinema 24p (2:2 pull down)
    • Yes
    • Picture Mode
    • 9 Modes
    • Picture Wizard III
    • Yes


    • 3D Type
    • FPR (Passive)
    • 3D to 2D
    • Yes
    • 2D to 3D
    • Yes
    • 3D Depth Control
    • Yes
    • 3D Viewpoint Control
    • 20 Levels
    • 3D Image Correction
    • Yes


    • VESA® Size (mm)
    • 600 x 400
    • Remote Control
    • Magic Remote Control
    • 3D Glasses
    • 2 Pairs Included

What people are saying

Rated 3 out of 5 by from Great video, poor warranty This TV is amazing. The video quality and size are perfect for a home theatre. There are a good amount of inputs on the back but not enough for all my hook up needs. Especially for the higher end 4K video hook ups. Only 1 HDMI port seems to support true 4K high res input. Another plus on this TV is the upscaling of video. I have a Laserdisc connected to this and it looks pretty amazing for an old analog video that large. The sound is pretty amazing on this too. Love the 3D feature. It is the best looking 3D for home we've ever scene. The only drawbacks I have are (besides the weight of this monster) that the video image started showing grey shadows and lines in the background. They are really only noticeable on solid color videos. The problem is LG's warranty and 3rd party warranty support vendors. No one wants to work on this large of a TV and now LG won't stand up for the repair. So for the TV itself, I give it a 4.0 but for the warranty support I give it a 1.0. the amount this thing cost (as much as a good used car) should warrant gold star support.
Date published: 2021-02-17
Rated 4 out of 5 by from Great 4K TV! I was an early adopter from 5 years ago, after all this time, this 4K HDTV still work flawlessly. The only bad thing is about the interface and how LG couldnt figure out a way to be able to update them to latest version, that's just terrible design.
Date published: 2020-04-15
Rated 5 out of 5 by from Awesome TV I have had this TV for a year, still produces incredible picture. 3D is awesome. Great buy for the money spent.
Date published: 2017-01-10
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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.

What would be a comparable replacement for this tv if it is not reparable? Same or better quality 

Asked by: PriscoRealtor
We don't offer 84" screens like the LG 4K UHD Smart LED TV - 84'' Class (84.0'' Diag), Model # 84UB9800 anymore, but we do offer 86" screens. Our current lineup of 86" screens do not support 3D. LG was the last of two companies to offer 3D TVs in 2016 and TV manufacturers stopped making 3D TVs in 2016. Newer models offer more features and newer technology. The LG Nano 9 Series 4K 86 inch Class Smart UHD NanoCell TV w/ AI ThinQ® (85.6'' Diag), Model # 86SM9070PUA and the LG 86 inch Class 4K Smart UHD TV w/AI ThinQ® (85.6'' Diag), Model # 86UM8070PUA and Model # 86UM8070AUB are the only models that we offer as 86" screens...^IFV
Answered by: Ivanf
Date published: 2020-03-05

 If only port one is HDCP 2.2 compatible will I be getting full video quality and benefit of the 4K that is available on ports two and three?   If not we've  obviously got a major problem. Customer service says all 4 are?  Who's correct?

Asked by: VMK TX
We regret your dissatisfaction with the design of this television. According to the information on page 23 of your owner’s manual, the HDCP 2.2 protocol is only available on the HDMI1 port.
Answered by: NeilE
Date published: 2017-02-01

 Are all of the porch HDCP 2.2 compatible.  I've tried two and three and I'm getting a message on both?

Asked by: VMK TX
I apologize, but no; according to the information listed on page 23 of the owner’s manual, it appears that only HDMI1 will be compliant with the HDCP 2.2 protocol.
Answered by: NeilE
Date published: 2017-01-31

 I am connecting a DirecTV Genie 4K to my TV. Does it matter which one of the HDMI inputs it goes to? (Arc etc.).   I'm currently getting a message that says my TV does not support 4K ?

Asked by: VMK TX
 I've tried those ports and have also seen a message showing that I do not have HDCP 2.2?   Is this TV compatible with that standard ?
Answered by: VMK TX
Date published: 2017-01-29

I just bought the TablerTV 84" M3 for LG 84UB9800 4K TV because I wanna setup the conference room. I received the item but now I need to buy the TV itself. Amazon does not ship this to my country it seems. Where can I buy so that it is shipped to me

Asked by: Tate Mike
Regrettably, most retailers in the US will not ship abroad, you will have to do an online search to find which retailer will ship abroad. The other issues you will find with the LG 4K UHD Smart LED TV - 84" Class (84.0" Diag), Model # 84UB9800 is that it is a discontinued TV finding a retailer who is still carrying it is going to be difficult. We are not familiar with the TablerTV 84" M3, but you also want to keep in mind that you will not be able to receive TV Broadcasts in Namibia on this set since the built in ATSC, NTSC-M and QAM 64 & 256 tuners in the TV are not compatible with the TV Broadcast system in Namibia. If you're using it as a monitor in the conference room, make sure that the TablerTV 84" M3 unit is able to output a signal that is compatible with the TV...^IFV
Answered by: LGJoel
Date published: 2016-05-06

I'm in need of a stand for the 84ub lg 4k...I bought one and it just had a wall mount. Any suggestions? 

Asked by: Hambone76
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 http://www.mcmelectronics.com/content/en-US/forms/lg_parts. The part number for this base stand is AAN74512502.
Answered by: NeilE
Date published: 2016-03-01

What should I use to clean the screen

Asked by: Bobby 66
We appreciate your interest in this monitor and its proper care. It is recommended to use a dry, soft cloth to wipe any dust, etc. from the screen, or from the cabinet. If moisture is required, it is recommended to use a damp, soft cloth. Do not allow moisture to run down the screen, as this can get past the frame and damage the interior of the set.
Answered by: NeilE
Date published: 2016-01-16

Does this tv have local dimming

I saw the 7700 have local dimming but couldn't find anything on this model. Can you please confirm this for me. Thanks
Asked by: GOhio
Yes, the LG 84" Class (84" Diagonal) 2160p Smart w/ webOS 3D Ultra HD 4K TV, Model # 84UB9800 has local dimming...^IFV
Answered by: LGJoel
Date published: 2016-01-16
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