Skip to Contents

40" Class (39.5" Diagonal) UHD 4K Smart LED TV

  • 40UB8000

Key Features

  • 4K Resolution
  • Tru-4K Engine
  • HEVC Decoder
  • LG Smart TV
  • ENERGY STAR® Qualified
4K Resolution - Video

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.

Tru-4K Engine

Tru-4K Engine

Enjoy the benefits of 4K resolution today. LG's Tru-4K HD Engine upscales the picture through a multi-step data analysis that enhances the details of broadcasts, movies, sports and videogames to near-4K quality, giving you the superior viewing experience you expect from an ULTRA HDTV.

HEVC Decoder

HEVC Decoder

The recently developed HEVC (short for High Efficiency Video Coding) compression format is essential to ULTRA HD/4K, enabling next-generation video playback to meet the demands of UHD TVs. 4K video uses HEVC, and so the built-in HEVC decoder on this LG ULTRA HD television makes it ready to display 4K content.

LG Smart TV

LG Smart TV

Easily access premium content* from providers like Hulu Plus®, Netflix® and YouTube® directly from your TV. Customize your LG home dashboard with your most-used apps so you can spend less time navigating and more time on your entertainment.

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

Premium 4K Resolution Content

Premium 4K Resolution Content

Looking for Ultra HD 4K Content? LG Smart TV's with Netflix now offer 4K resolution streaming video! Other streaming services have also begun to adopt 4K resolution 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. Content and services vary by product and are subject to change without notice. **4K/UHD content delivery standards still being developed.

UCI 1080

UCI 1080

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. Inherently superior to current HD, UHD TVs with a UCI of 1080 offer a huge leap forward for clear, precise images even on demanding fast action such as sports and videogames.

Smart Share

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

ENERGY STAR® QUALIFIED

ENERGY STAR® QUALIFIED

Earning the ENERGY STAR® means a product meets strict energy efficiency guidelines set by the US Environmental Protection Agency and the Department of Energy. ENERGY STAR® certified televisions are on average, over 25 percent more energy efficient than conventional models, saving energy in all usage modes: sleep, idle and on.

SUMMARY
Screen Size 40"
SMART TV
Premium VOD Services Netflix, Hulu Plus, Youtube and more
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
AUDIO
Speaker System 2ch Speaker System
Audio Output Power (Watts - THD 10%) 20W
Mono/Stereo/Dual (MTS/SAP) Yes
Dolby® Digital Decoder Yes
DTS Decoder Yes
Sound Mode 6 Modes
Clear Voice II Yes
Sound Optimizer 3 Modes
Optical Sound Sync Yes
Wireless Sound Sync Yes
CONNECTIVITY
Wi-Fi® Built-in Yes
Wi-Fi Direct Yes
SIMPLINK™ (HDMI™ CEC) Yes
USB Yes
- Video DivX HD
- Photo JPEG
- Audio AC3 (Dolby Digital), EAC3, HE-AAC, AAC, MPEG, MP3, PCM, DTS
INPUTS
RF In (Antenna/Cable) 1 (Rear)
Component Video In(Y, Pb, Pr + Audio) 1 (Rear)
Composite In (AV) 1 (shared w/Component)
HDMII® 3 HDMI (1 Side, 2 Rear) *1 HDMI input supports HDCP 2.2
USB 3.0 3 (side)
Digital Audio Out (Optical) 1 (Rear)
LAN 1 (Rear)
RS-232 (mini jack) 1 (Rear)
POWER
ENERGY STAR® Qualified Yes
Power Supply (Voltage, Hz) 100V ~ 240V, 50/60 Hz
Standby Mode 0.3W
DIMENSIONS / WEIGHTS
TV without Stand (WxHxD) 35.4" x 20.8" x 1.9"
TV with Stand (WxHxD) 35.4" x 22.4" x 8.54"
TV without Stand weight 23.0 lbs
TV with Stand weight 23.6 lbs
TV Shipping Dimensions (WxHxD) 38.7" x 24.3" x 5.6"
Shipping Weight 27.8 lbs
WARRANTY / UPC
Limited Warranty 1 Year Parts & Labor
UPC 719192595248
PANEL SPECIFICATIONS
Screen Size Class (diagonal) 40" Class (39.5" diagonal)
Resolution 3840 x 2160
Display Type LED
UCI (Ultra Clarity Index) 1080
VIDEO
Tru 4K Engine Yes
4K Resolution Upscaler Yes
Dynamic Color Enhancer Yes
Picture Mode 8 Modes
Aspect Ratio 6 Modes
Just Scan (1:1 Pixel Matching) HDMI/Component/RF - 1080i, 1080p, 720p
Real Cinema 24p (2:2 pull down) Yes
Picture Wizard III Yes
CABINET / ACCESSORIES
VESA® Size (mm) 200 x 200

What People Are Saying

Rated 4.5 out of 5 by 20 reviewers.
Rated 5 out of 5 by Best TV I've ever had. Great picture resolution. The sound quality is great. August 12, 2015
Rated 5 out of 5 by UB8000 UHD TV I recently purchased the 40" LG UB8000 UHD TV from Best By Canada. It is great picture quality UHD TV in 4:20 resolution. I have not viewed any 1080 HD quality TV viewing or 4K only available on select NetFlex network packages. Looking forward to the 1st TV Network 4K Broadcast viewing on the market in the near future. Any comments when the TV Networks will broadcast in 4K resolution? The only complaint I have as I have read in previous reviews is the Low Sound when connected to my Digital Box and Home Theatre Sound System. July 24, 2015
Rated 5 out of 5 by Great 4K UHD TV at one of the best price on market The picture quality of this TV is great. Even old B&W movies look better on this TV. Easy to setup! Connect easy to your home wireless network so you can watch online channels. A good buy for me. July 3, 2015
Rated 5 out of 5 by Best Picture Quality EVER!!!! My jaw literally dropped when I turned on this TV after setting up my XBOX ONE and cable box. Even on Standard Definition channels this the picture is amazing. I didn't have to do any tweaking to adjust the picture, look perfect from the second I turned it on. My XBOX ONE has never looked better. Perfect TV for gaming. The sound is far better then what I ever expected. I love that there is hardly any boarder around the TV. I watched a 1080p Nature video on YouTube and it was like looking out a window. I ducked when a bee flew passed the camera. If you are looking for a Smart TV with a outstanding picture get this. Great job LG. June 11, 2015
Rated 4 out of 5 by Decent as a TV, but just OK as a 4k monitor The 4:2:0 makes it difficult to use as a 4k monitor at 60Hz. Also, the audio delay requires turning on the bypass feature. Lastly, the Super Resolution setting doesn't stay off between restarts. April 24, 2015
Rated 2 out of 5 by 4K Still trying to figure this product out, How to get the 4k crisper but other than that I love this TV and everything about it. April 24, 2015
Rated 4 out of 5 by OMG the color. I picked up this baby at BestBuy on sale.. Like a stupid crazy sale. The only way I can describe it is it's like you're looking out of a window and not watching a TV screen. Everything is crisp and sharp.. Just beautiful. I find the Sound lacks quality, however, I do have it connected to a home system sound bar and sub so I don't use the TV audio. I given it a 4 for that reason. But I do recommend the TV to anyone. April 20, 2015
Rated 4 out of 5 by Great TV over all. I have watched this TV for small room for 3 month. Excellent Image and fare enough 4k monitor. only cons are the stands. it is too wide spread out to sit on the normal tv stand. April 18, 2015
  • 2015-08-27T13:35:55.803-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_20, tr_20
  • loc_en_US, sid_MD05134040, prod, sort_default
2 Next>>

We're here to support you with our product.

Contact us for any purchasing inquiries.

Product Support

ASK & ANSWER

Ask your questions. Share your answers.

27 Questions & 12 Answers

Ask Your Questions, Share Your Answers

Ask your questions. Share your answers.

 
 
« Back
 
 
 
1 answer

Nvidia 3d Vision

I am looking to upgrade my 1080p monitor with a 4k one and was courious if the 40UB8000 was compatible with Nvidia 3D Vision kits?
Category: I do not own this product
Interested in: Specifications
11 months ago
User Name:
Dactron
 
Please wait while more information about Dactron is loaded.
Additional information about Dactron could not be loaded.
0points
0out of 0found this question helpful.
HelpfulNot Helpful

Answers

Answer: 
Despite the spec sheet at Amazon, this TV does not support 3D of any sort.
Gender: male
10 months ago
User Name:
illrigger
Washington, USA
 
Please wait while more information about illrigger is loaded.
Additional information about illrigger could not be loaded.
0points
0out of 0found this answer helpful.
HelpfulNot Helpful
 
1 answer

mount

Can it be mounted on wall?
Category: I do not own this product
Interested in: Specifications
9 months ago
User Name:
Ketch
Mississippi, USA
 
Please wait while more information about Ketch is loaded.
Additional information about Ketch could not be loaded.
0points
0out of 0found this question helpful.
HelpfulNot Helpful

Answers

Answer: 
It has 200x200 VESA mount, so yes.
7 months ago
User Name:
grandpixel
 
Please wait while more information about grandpixel is loaded.
Additional information about grandpixel could not be loaded.
0points
0out of 0found this answer helpful.
HelpfulNot Helpful
Obviously we'll need a 4K compatible video controller.
Category: I own this product
Interested in: How To use
9 months ago
User Name:
jerryh
California, USA
 
Please wait while more information about jerryh is loaded.
Additional information about jerryh could not be loaded.
+6points
6out of 6found this question helpful.
HelpfulNot Helpful

Answers

Answer: 
Yes, this display supports 3840 x 2160 resolution output from a computer.
Gender: male
8 months ago
User Name:
Rudy1
Fort Lauderdale, FL, USA
 
Please wait while more information about Rudy1 is loaded.
Additional information about Rudy1 could not be loaded.
0points
2out of 4found this answer helpful.
HelpfulNot Helpful
I want to use this TV as a PC monitor. Videocard is GTX 980, supposedly HDMI 2.0 capable.
Category: I do not own this product
Interested in: Specifications
9 months ago
User Name:
carage
Miami, FL, USA
 
Please wait while more information about carage is loaded.
Additional information about carage could not be loaded.
+4points
4out of 4found this question helpful.
HelpfulNot Helpful

Answers

Answer: 
No, this model does support 4K@60Hz, but not with 4:4:4 Chroma.
Gender: male
8 months ago
User Name:
Rudy1
Fort Lauderdale, FL, USA
 
Please wait while more information about Rudy1 is loaded.
Additional information about Rudy1 could not be loaded.
+6points
6out of 6found this answer helpful.
HelpfulNot Helpful
Can someone at LG confirm whether or not this display features HDMI 2.0 input? Thanks!
Category: I do not own this product
Interested in: Specifications
 
Products related to my question
 
 
 
9 months ago
User Name:
grandpixel
 
Please wait while more information about grandpixel is loaded.
Additional information about grandpixel could not be loaded.
+3points
3out of 3found this question helpful.
HelpfulNot Helpful

Answers

Answer: 
yes
Gender: male
1 month, 3 weeks ago
User Name:
ovidius
New York, NY, USA
 
Please wait while more information about ovidius is loaded.
Additional information about ovidius could not be loaded.
0points
0out of 0found this answer helpful.
HelpfulNot Helpful
  • 2015-08-27T13:36:54.276-05:00
  • bvseo_lps, prod_bvqa, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasquestionsanswers
  • loc_en_US, sid_MD05134040, prod, sort_default
2 3 4 5 6 Next>>
  • 2015-08-27T13:36:54.280-05:00
  • bvseo_lps, prod_bvqa, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasquestionsanswers
  • loc_en_US, sid_MD05134040, prod, sort_default
2 3 4 5 6 Next>>