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


Key Features

  • HD Display
  • HDMI
  • LED Backlighting
See Retailer for Pricing


HDMI (High Definition Multimedia Interface) offers incredible audio/video quality and single-cable convenience. This monitor includes an HDMI input, so you can connect a true high-definition source, such as a high-end computer, Blu-ray player or next-generation videogame console.

LED Backlighting

LED Backlighting

LG’s LED backlighitng delivers exceptional brightness and amazing image clarity. You'll see richer colors and deeper blacks too, and LEDs offer greater energy efficiency compared to conventional LCD monitors.


What People Are Saying

Rated 4 out of 5 by from We are pleased with the picture and sound. I am most satisfied after my first month of viewing.
Date published: 2018-12-01
Rated 4 out of 5 by from Excellent picture, easy to set up I bought this 2 weeks ago and I am more than satisfied. The TV is easy to set up, audio is quite good and video i excellent. It is just the right size (28") for where we put it - the kitchen/dining room and now we can watch sports or news when we cannot be in the living room. My only criticism is that the voice telling you that it is on and what the picture resolution is becomes somewhat annoying. Perhaps it can be turned off, but I haven't yet discovered how to do so.
Date published: 2018-11-28
Rated 5 out of 5 by from As advertised..... I've had it for about a week, and am very happy with it, fits perfectly in the space it is used. Great picture, sound is OK. Very pleased overall.
Date published: 2018-11-23
Rated 5 out of 5 by from Bright and beautiful I have a 24 " LG and LOVE it so I bought the 28" and LOVE it.
Date published: 2018-11-20
Rated 5 out of 5 by from Great color and clarity. I needed a smaller tv for a bedroom and this one was the perfect size. Very easy to set up!
Date published: 2018-11-18
Rated 5 out of 5 by from Nice television I bought my television about three weeks ago. It is a 28 inch screen. Just the right size for a bedroom. Clear sharp picture. Very pleased with my purchase.
Date published: 2018-11-12
Rated 5 out of 5 by from Telivision We are very happy with our 28 inch LG television. We has a 19 inch LG before and was pleased with it, but the 28 inch blows us away!
Date published: 2018-11-01
Rated 5 out of 5 by from 3rd LG tv Third tv from LG. Well satisfied with setup and picture quality! Highly recommended brand. Even product registration is easy with smart phone.
Date published: 2018-11-01
Rated 5 out of 5 by from Great choice Happy to replace my old 28 inch tv with a LG 28 inch HDMI tv. Beautiful picture and sound.
Date published: 2018-10-28
Rated 5 out of 5 by from Works well. Had this TV for about a month and very pleased with its operation both on cable and OTA channels. Picture quality is good, audio is more than adequate.
Date published: 2018-10-27
Rated 5 out of 5 by from Love it Picture Is so Clear easy set up love the picture and sound great price bought for my kitchen Love it
Date published: 2018-10-22
Rated 5 out of 5 by from I needed a TV to fit my amish cabinate /dresser i bought this a couple of weeks ago for my bedroom dresser ,couldnt find the size I needed till i checked Best Buy the 28 in fits my cabinate ,nice picture not hard to set up pretty easy ,good sound very happy with this LG TV.
Date published: 2018-10-15
Rated 5 out of 5 by from I Love my LG Fridge! I’m so happy with my LG fridge it’s so regrets!
Date published: 2018-10-10
Rated 5 out of 5 by from excellent picture! The picture is breathtaking. The price was very good. It was simple to set up.
Date published: 2018-10-02
Rated 5 out of 5 by from Easy / Breezy to setup and PERFECT size needed to replace a kitchen TV - something with a smaller screen and LG was one of the only manufacturers who offered a 28’. would recommend this brand - instructions were very easy - and called customer support for a problem , which was actually a cable issue, and they were helpful and patient (a real person vs. robot)
Date published: 2018-09-29
Rated 5 out of 5 by from Excellent Small TV I bought this tv a few weeks ago and it fits just right in my bedroom. The sound is clear and picture is very clear and vivid even though I prefer the cinema view to the standard because it makes the colors come out more.
Date published: 2018-09-19
Rated 4 out of 5 by from This was my first flat screen purchase. Very pleased w/the quality of the picture, the quality sound and the sale price. Sometimes the reception is messy.
Date published: 2018-09-14
Rated 5 out of 5 by from Best TV Available Under 32" Needed a TV smaller than 32" to fit in a smaller space, and after quite a bit of research, I found this lil guy... It's a perfect fit, and though it's not 1080p, if you're going to be more than 4-5 feet away from the screen your eyes literally can't tell the difference. Better still, the display on this looked better and more natural than the 32" 1080p Vizio that was on display right next to it. I'm a die-hard Samsung guy, but they don't have anything comparable. So, save yourself some coin -- and get this if you're looking for something smaller than a 32" TV.
Date published: 2018-08-24
Rated 4 out of 5 by from Good Deal I've only had this phone for about 3 weeks, the instruction booklets lack somewhat, for those with no internet, it's tricky. Otherwise, good product (once you get going!)
Date published: 2018-08-15
Rated 4 out of 5 by from Execllent picture Bought about 3 weeks ago . Good tv. But help chat not good
Date published: 2018-08-13
Rated 4 out of 5 by from Just right for the bedroom watching Glad to get this tv.. It is great to see the printing better in our bedroom. It has a good picture.. Only thing, I wish it wouldn't talk when it starts up... any way to fix that>
Date published: 2018-08-11
Rated 5 out of 5 by from This was bought as an extra tv in a spare room. It has been great.
Date published: 2018-08-11
Rated 5 out of 5 by from Great to use as a computer monitor I bought this unit to use as a monitor for my computer and as a spare television. It has a great picture and is light to move around. Very good value.
Date published: 2018-08-09
Rated 3 out of 5 by from Beautiful color I love the color of the TV and like the size, it fits my console perfectly. The only complaint I have is the screws that came with it to put the feet on the TV were too long and wouldn't allow the TV to sit upright and steady. I complained and they sent me more screws.... the exact same size. My son ended up putting double sided tape between the legs and the TV and then tightened the screws where the TV is not tight to the legs and doesn't move and worry me that it's going to fall.
Date published: 2018-08-08
Rated 5 out of 5 by from Perfect for Our Use Replaced an older TV with this LG. It is easy to install and user friendly.
Date published: 2018-08-07
Rated 4 out of 5 by from LG 24" TV The initial setup for the source and the channel listing selection was very easy. the picture quality is excellent, but the sound quality is fair (common for small TV's). Only small complaint is the TV requires additional jacks for audio connections, such as optical cable, so user can continue to use non-HDMI devices.
Date published: 2018-08-07
Rated 5 out of 5 by from Good! Purchased for travel trailer. Has great pictuer and was easy to mount.
Date published: 2018-08-05
Rated 5 out of 5 by from Great picture. My first LG TV, bought for the bedroom. Great picture, sound. Really pleased with this purchase.
Date published: 2018-08-04
Rated 5 out of 5 by from This was the perfect size for my place. A great T v
Date published: 2018-08-03
Rated 4 out of 5 by from Good TV Does most of what it's supposed to. Has no feature to make all broadcasts fill up he screen without stretching out or zooming in. Zoom cuts off some heads and is not as sharp as without zoom. Feet did not fit securely. They wobble.
Date published: 2018-08-02
  • y_2019, m_1, d_18, h_2
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.9
  • cp_2, bvpage2n
  • co_hasreviews, tv_0, tr_229
  • loc_en_US, sid_MD05847129, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_lg
  • bvseo_sdk, java_sdk, bvseo-
  • CLOUD, getReviews, 5ms


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.

Does this TV support HDMI-CEC, aka SimpLink

Asked by: Irishbuckeye
The LG HD 720p LED TV - 28" Class (27.5" Diag), Model # 28LJ400B-PU does not support Simplink...^IFV
Answered by: LGJoel
Date published: 2018-12-10

What is the distance (dimension) between the stand legs of the TV?

Asked by: Jimmy65
There are approximately 19 inches between the legs of the 28LJ400B. If you are in need of any assistance, have additional questions, or would just like to see our helpful tips, check us out on Twitter @LGUSSupport ^CP
Answered by: ChrisPSM
Date published: 2018-10-17

Can anyone recommend a small, low profile sound bar to go with this tv? Love the picture, but the sound needs a boost. Thanks!

Asked by: JPC33
Hello, we do not make "low profile" sound bars but 2 of are small ones would be the SH2 and SJ4Y-S. ^AC
Answered by: Amber C
Date published: 2018-03-19

Can I use wired headphones on this tv ? I have tried to send lug in a set and getno sound through the headset

Asked by: BLeg
Hello, the 28LJ400B-PU does not have a headphone jack. ^AC
Answered by: Amber C
Date published: 2018-03-12

Does the LG 29LJ400B have a RCA video input connector? Sometimes you just need some older technology mixed in with the newer technology. Thanks

Asked by: Just Pondering
The LG HD 720p LED TV - 28" Class (27.5" Diag), Model # 28LJ400B, like most current TVs, has what is referred to as a Shared Composite/Component Video Input. As you are aware, the Composite Inouts is what is commonly referred to as the RCA inouts which are color coded as Red, White and Yellow and the Component are color coded as Red, Green and Blue. The TVs video input circuitry has been modified so that both a composite and component video source connection (and associated analog audio input) can be accommodated. However, you cannot plug in both a composite video and component video signal source (with associated analog stereo audio) to the TV at the same time. On our product page for this TV, you can use the left navigation arrow to scroll to the left of the main image and you can look at a picture of this port. The Red and White RCA barrel tips on an RCA cable are for the Stereo Audio signal and those can be plugged into the ports labeled as L/MONO AUDIO R by matching the colors. The Yellow tip of the RCA cable ( which sends an analog video signal in which both the Color and B/W portions are transferred together) can be plugged into half Yellow/half Green port on the TV labeled as Video/Y...^IFV
Answered by: LGJoel
Date published: 2018-02-22

Is there a screen mirroring feature on this TV? And if so how do I turn it on / use ot

Asked by: 1050
Hello, the 28LJ400B-PU does not have that feature. ^AC
Answered by: Amber C
Date published: 2018-02-15

Does the TV have a digital QAM tuner? The cable TV service provider that I use has some channels that can be seen without the use of a set top box. I can see these channels by connecting the coax cable directly to a QAM capable TV set.

Asked by: zzap
A 64 & 256 QAM tuner is one of three built-in tuners in this LG HD 720p LED TV - 28" Class (27.5" Diag), Model # 28LJ400B. The other two built-in tuners are an ATSC tuner and an NTSC-M tuner...^IFV
Answered by: LGJoel
Date published: 2018-02-15

How to I disable to voice announcement option, ie"channel 9" ?

Asked by: Earthma
In the settings menu for your LG HD 720p LED TV - 28" Class (27.5" Diag), Model # 28LJ400B, navigate to (Settings) > Accessibility > Audio Guidance and set it to off. You can find these instructions on page 12 in your owner's manual under 'To Use Audio Guidance'...^IFV
Answered by: LGJoel
Date published: 2018-01-31
  • y_2019, m_1, d_18, h_2CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.9
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_19
  • loc_en_US, sid_MD05847129, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_lg
  • bvseo_sdk, java_sdk, bvseo-
  • CLOUD, getContent, 3ms