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LG 84" Class UHD 4K LED TV

  • Model: 84UB9800
  • 79.7(w) X 43.8(h) X 3.4(d)
  • 84.0" Measured Diagonally
  • 3,840 x 2,160 Display Resolution with 240Hz Technology
  • Smart TV w/ Built-In WiFi
Special financing available (subject to credit approval)
Screen Class
84" Class
Actual Screen Size
84.0" Measured Diagonally
Display Type
Display Resolution
3,840 x 2,160 Display Resolution with 240Hz Technology
Internet Connectivity
Smart TV w/ Built-In WiFi
3D Capability
Passive 3D Capable
HDMI/PC Inputs
4 HDMI Inputs
HD Component Video Inputs
1 HD Component Video Input
Audio Output
Digital Audio Output
Additional Features
The premium UB9800 series ULTRA HD TV line-up lets you enjoy stunning 4K resolution on the big screen. It is equipped with our exclusive Tru-ULTRA HD Engine Pro, which upscales SD or HD content in lifelike, near-ULTRA HD so everything you watch will be enhanced. And, because we use an IPS panel colors maintain even at wide viewing angles. Now any seat is the best seat in the house. LG Smart TV's with Netflix now offer 4K resolution streaming video!
Internet Applications
WebOS Platform & Magic Remote
Call Out Feature
Enhanced Sound by Harmon/Kardon
Additional Sizes
Also Available in 65", 79" & 98"
79.7(w) X 43.8(h) X 3.4(d)
Shipping Weight
205 lbs
Warranty Terms - Parts
12 Months
Warranty Terms - Labor
12 Months


  • Enjoy Stunning 4K resolution on the Big Screen*

    84" Class (84" Diagonal) 2160p Smart w/ webOS 3D Ultra HD 4K TV
  • Beautiful From Every Angle

    LG OLED and Ultra HD TVs are standouts long before you turn them on. Their look is sleek. Elegant. As impressive as their brilliant picture quality.
  • 4K Resolution

    ULTRA HD is a new standard in picture quality, and it's the future of high-end video display in the home. The resolution is four times that of Full HD 1080p*, with a whopping 8.3 million pixels to display flawless images, even when viewed up close. Enjoy incredibly vivid colors and picture details as never before.

    Disclaimer: *4K/UHD content delivery standards still being developed.
  • IPS Panel

    One of the secrets behind LG TVs outstanding high-definition performance is the specially designed TV panel. The quality of the panel helps determine the quality of the picture, and our IPS (In-Plane Switching) panel makes any seat the best in the house, with a clearer and more consistent image at wide viewing angles compared to conventional screens.
  • Tru-4K Engine Pro

    LG’s Tru-4K Engine Pro is our best resolution enhancer yet, that delivers a better picture quality on LG’s ULTRA HD 4K TVs. Now you can upscale content so closely to native 4K it is nearly impossible to tell the difference, so all of your Blu-rays, DVD’s and TV programs look amazing, even on big screen sizes.
  • HEVC Decoder

    The recently developed HEVC (short for High Efficiency Video Coding) compression format is essential to ULTRA HD/4K content playback. Some next generation content will use this HEVC format and this TV has it built-in HEVC decoder to display the 4K content*.

    Disclaimer: *4K/UHD content delivery standards still being developed.
  • Unblur the Action

    Enjoy sports, video games and high-speed action with enhanced clarity thanks to the LG TruMotion 240Hz technology (how often the picture is rendered on the screen). So expect even the fastest action to be dependably crystal clear and virtually blur-free.
  • LG Smart TV

    Smart shouldn’t be difficult. LG Smart TV* makes it easy to connect to premium content from providers like Netflix®, Hulu Plus® and YouTube®. The simple and fun Magic Remote saves time and trouble, letting you point, click, scroll and even speak into the remote to find exactly what you want, searching across apps, movies, TV shows and the web... all at the same time! Spend less time navigating and more time being entertained. Plus, LG’s Smart TV experience is more intuitive than ever. Our new webOS user interface lets you customize your home screen to access the apps you use most and easily switch between them, pick up where you left off on your most recent apps, or select something new.

    Disclaimer: *Internet connection & some subscriptions required and sold separately. Content and services vary by product and are subject to change without notice.
  • Magic Remote

    Change the channel, open an app or find something new with a wave of your hand, the scroll of a wheel, or use LG's unique Voice Mate™ with natural speech recognition. And now you can control your compatible Blu-ray player, home theater system, set-top-box and sound bar with just one remote. Spend less time navigating and searching for remotes and more time enjoying your entertainment.

    Disclaimer: *AN-MR500 available on select models
  • Premium 4K Resolution Content

    Looking for Ultra HD 4K Content? LG Smart TV's with Netflix now offer 4K resolution streaming video! Other broadcasters have also begun to adopt 4K resolution for sports programming, with increased implementation expected in the years ahead. 4K source components—consumer video gear capable of outputting a true 3,840 x 2,160 signal—are now also on the market as well.

    Disclaimer: *Internet connection & some subscriptions required and sold separately.

    LG’s webOS user interface takes all the guesswork out of Smart TV...and only LG has it. Setting up your TV is a cinch, with Bean Bird guiding you every step of the way. Once you’re connected, selecting your favorite movies and entertainment couldn’t be easier. The webOS home screen is clear, colorful and intuitive. And with the Magic Remote, you’re just a click away from choosing your favorite apps.
    *Internet connection and certain subscriptions required and sold separately. Content and services vary by product and are subject to change without notice.
  • UCI 1560

    Specifically applied to LG Ultra HD televisions, our Ultra Clarity Index (UCI) is a rating that represents several key performance features and their ability to deliver the clearest possible picture. UHD TVs with a UCI of 1560 provide an exceptionally clear, precise image even on demanding fast action such as sports and videogames.
  • Smart Share

    LG gives you multiple ways to share those vacation photos, that family video or your favorite song on your TV, from a compatible device like a smartphone or tablet. Whether you link devices via your home network or send content directly from your laptop over WiDi, LG makes it easy for you to share what you like up on the big screen for friends and family to enjoy.

    Disclaimer: *Internet subscription required and sold separately
  • Universal Control

    Say goodbye to multiple remote controls. Your LG Magic Remote can control your compatible Blu-ray player, home theater system, set-top box and sound bar, so you don't have to search for a different remote for each piece of your equipment.
  • LG Recommendations

    LG Recommendations makes it easy to find programming suited to your individual tastes. Enter information about the programs you like and LG Recommendations will suggest appropriate titles. As you select more programs, the recommendations become even better-tailored to you. Want to know what others are watching? You can also find what's popular, what's trending and what your friends suggest
  • 4K 3D+

    4K 3D+* gives you four times the resolution** of our high-definition 3D, for a more detailed and lifelike experience that will blow you away. Enjoy easy-to-use, easy-to-share 3D glasses, outstanding picture quality and dazzling 3D effects.

    Disclaimer: *Viewing 3D video content may cause discomfort visit
  • Cinema 3D Glasses

    LG Cinema 3D glasses are lightweight, flicker-free and do not require batteries, just like the ones at the theater. They're also inexpensive, so it's easy to share the 3D experience with friends and family.
  • Dual Play

    The Dual Play* feature on select LG Cinema 3D TVs allows two players to enjoy head-to-head gaming on one television without the compromise of a split screen. Two players can now compete against one another independently and catch the action across the full screen at the same time.
    *Requires Dual Play AG-F400DP special glasses, sold separately.
  • 2D to 3D Conversion

    Ever wish that your favorite movie or TV show was in 3D? Now it can be, with LG’s 2D-to-3D conversion setting that adds a new dimension to ordinary video.

Product Views


Screen Size84"
Screen Size Class (diagonal)84" Class (84" diagonal)
Resolution3840 x 2160
Display TypeLED
UCI (Ultra Clarity Index)1560
TruMotion 240HzYes
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 weight162.5 lbs
TV with Stand weight171.3 lbs
TV Shipping Dimensions (WxHxD)85" x 49" x 13"
Shipping Weight205 lbs
Tru 4K Engine ProYes
4K Resolution UpscalerYes
Tru Color GeneratorYes
Dynamic Color EnhancerYes
Aspect Ratio8 Modes
Just Scan (1:1 Pixel Matching)HDMI: 1080i, Component: 1080p, RF 720p
Real Cinema 24p (2:2 pull down)Yes
Picture Mode9 Modes
Picture Wizard IIIYes
Speaker System5.2 Speaker System
Audio Output Power (Watts - THD 10%)120W
Mono/Stereo/Dual (MTS/SAP)Yes
Dolby® Digital DecoderYes
DTS DecoderYes
Sound Designed by harman/kardon®Yes
Sound Mode6 Modes
Clear Voice IIYes
Sound Optimizer3 Modes
Optical Sound SyncYes
Wireless Sound SyncYes
3D TypeFPR (Passive)
3D to 2DYes
2D to 3DYes
3D Depth ControlYes
3D Viewpoint Control20 Levels
3D Image CorrectionYes
Premium ContentYes
Full Web BrowserYes
Skype™ ReadyYes (Camera AN-VC500 required and sold separately. Skype subscription required.)
Magic Remote ControlYes
Natural Voice RecognitionYes
Universal Control CapabilityYes
Launcher BarYes
Easy SetupYes
LG App StoreYes
Live MenuYes
Media ShareYes
- Remote AppYes
- Network File BrowserYes
- YouTube Send-to-TVYes
Screen ShareYes
- MHL (Mobile HD Link)Yes
- MiracastYes
- WiDiYes
Wi-Fi® Built-inYes
Wi-Fi DirectYes
- VideoDivX HD
- AudioAC3 (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)
USB 3.0/2.0 In1/ 2 (Side)
Digital Audio Out (Optical)1 (Rear)
LAN1 (Rear)
RS-2321 (Rear)
VESA® Size (mm)600 x 400
Remote ControlMagic Remote Control
3D Glasses2 Pairs Included
Power Supply (Voltage, Hz)100V ~ 240V, 50/ 60 Hz
Standby Mode0.3W
Limited Warranty1 Year Parts & Labor

Design, features and specifications subject to change without notice.
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