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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 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
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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.

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

can I connect a sound base to the 28LJ400B? I don't see ARC. Will it accept an optical cable?

Asked by: goodskate
Regrettably, the LG HD 720p LED TV - 28" Class (27.5" Diag), Model # 28LJ400B-PU only has inputs on it. It does not have any Audio Outputs on it that you can use to connect to a Sound Bar or other external Audio Systems and it does not have an HDMI ARC port nor an Optical Digital Output either...^IFV
Answered by: LGJoel
Date published: 2018-01-30

Is the bezel and stand a gloss or flat black finish?

Asked by: Njtech2
The bezel is glossy, and the stands(there are two) are a matte finish.
Answered by: El Reno
Date published: 2018-01-02
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