55'' Class Cinema 3D 1080P 240Hz LED TV with Smart TV (54.6'' diagonally)


  • LG Smart TV
  • LG Cinema 3D
  • Cinema Screen
  • 2.1 Speaker
  • Energy Star® Qualified
55" Class Cinema 3D 1080P 240Hz LED TV with Smart TV (54.6" diagonally)


    • Screen Size
    • 55"


    • Home Dashboard
    • 3.0
    • Premium Content
    • Yes
    • App Store
    • Yes
    • Full Web Browser
    • Yes
    • 3D World (3D Content Streaming)
    • Yes
    • Smart Share™ Plus
    • Yes
    • Smart Phone Remote Support
    • Yes


    • Speaker System
    • 2.1 Speaker (2 way, 3 speaker)
    • Audio Output Power (Watts - THD 10%)
    • 12W + 12W
    • Mono/Stereo/Dual (MTS/SAP)
    • Yes
    • DTS Decoder
    • Yes
    • Virtual Surround
    • Yes
    • Sound Mode
    • 6 Modes (Standard, Music, Cinema, Sport, Game, User)
    • Clear Voice II
    • Yes
    • Sound Optimizer
    • 3 Modes (Normal/Wall Mount/Stand)


    • Wi-Fi® Built-in
    • Yes
    • Wi-Fi Direct
    • Yes
    • Windows 8 Certified
    • Yes
    • DLNA Certified®
    • Yes
    • Intel® Wireless Display (WiDi)
    • Yes
    • MHL™ (Mobile High-Definition Link)
    • Yes
    • NFC (Near Field Communications)
    • Yes
    • Yes
    • USB Playback
    • DivX HD®, JPEG, JPG, MPO, AC3 (Dolby® Digital), EAC3, HAAC, AAC, MPEG, MP3, PCM, DTS®


    • RF In (Antenna/Cable)
    • 1 (Rear)
    • AV In
    • 1 (Rear)
    • Component Video In(Y, Pb, Pr + Audio)
    • 1 (Rear)
    • HDMI™/HDCP Input
    • 3 (Side)
    • USB 3.0/2.0 Input
    • 3 (Side)
    • Digital Audio Out (Optical)
    • 1 (Rear)
    • LAN
    • 1 (Rear)
    • RS-232 (Control & Service)
    • Ready (RS232C to USB)


    • ENERGY STAR® Qualified
    • Yes
    • Power Supply (Voltage, Hz)
    • 100V ~ 240V, 50/60 Hz
    • Power Consumption
    • 53.9W
    • Standby Mode
    • 0.3W


    • TV without Stand (WxHxD)
    • 48.54" x 28.62" x 1.37"
    • TV with Stand (WxHxD)
    • 48.54" x 31.34" x 12.44"
    • TV without Stand Weight
    • 44.1 lbs
    • TV with Stand Weight
    • 50.3 lbs
    • TV Shipping Dimensions (WxHxD)
    • 52.32" x 37.60" x 10.04"
    • Shipping Weight
    • 65.3 lbs

Warranty / UPC

    • Limited Warranty
    • 1 Year Parts & Labor
    • UPC
    • 719192588110


    • Screen Size Class (diagonal)
    • 55" Class (54.6" diagonal)
    • Resolution
    • 1920 x 1080
    • BLU Type
    • LED Plus
    • Refresh Rate
    • TruMotion 240hz
    • MCI
    • 960
    • Local Dimming
    • Yes


    • Dual Core Processor
    • Yes
    • Triple XD™ Engine
    • Yes
    • Resolution Upscaler
    • Yes
    • Picture Mode
    • 7 Modes (Vivid/Standard/Eco/Cinema/Game/ISF Expert 1/ISF Expert 2)
    • Aspect Ratio
    • 6 Modes (16:9/Just Scan/Original/4:3/Cinema Zoom/Zoom)
    • Just Scan (1:1 Pixel Matching)
    • HDMI: 1080i, Component: 1080p, RF: 720p
    • AV Mode II
    • 3 Modes (Cinema/Game/Off)
    • Picture Wizard
    • Yes


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


    • VESA® Wall Mount Pattern
    • 400mm x 400mm
    • Magic Remote
    • 1
    • 3D Glasses
    • 4 Pairs Included
    • Batteries
    • AA x 2

What people are saying

Rated 4 out of 5 by from Great picture, sound is just ok. I’ve had this TV for about 4 years now. The picture quality is better than any of the other 5 TVs I have in my house (including newer, more expensive LG model and Samsung. The sound is less than stellar, though. I would highly recommend a soundbar with this TV. I also do NOT like that there is no Hulu app on any LG smart tv. Come on LG?? Otherwise, the TV is great!
Date published: 2020-01-29
Rated 5 out of 5 by from Best features available today! Finally got the model i wanted! The picture is chrystal clear, like you can reach out and touch whatever is on the other side. WiFi built in, so easy access to use LG content at the touch of a button. Surf the web, listen to and watch videos on youtube, get weather updated, see my google photos right on my tv; I'll never get bored again. Can't be more pleased, no one will be hearing me complain anytime soon, thanks LG.
Date published: 2019-04-04
Rated 5 out of 5 by from LG 55 classic i bought 2 months ago. Best smart t.v. i have ever seen.It almost cost you anything to purchase before LG discontinued selling thr 55 inch model
Date published: 2018-11-16
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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.

Looking where to get mounting hardware (screws) to put TV back on base that it came with.  

Asked by: Michael1977
We will be happy to get the proper screws for the base sent out to you. Our support team is available via Twitter @LGUSSupport, Facebook https://www.facebook.com/LGUSA/ or you can give us a call at 800-243-0000. ^CP
Answered by: ChrisPSM
Date published: 2019-03-26

I forgot my pin for the safety section of settings how can I reset it.

Asked by: Brentbel
Hello, to reset the password/pin, try "0000" then "1111" then "2222" and finally "3333" Only continue on until it unlocks it and then that will be the code. ^AC
Answered by: Amber C
Date published: 2018-10-22

How do I find the apps in LG TV,, and where in the settings is the screen cast-enabled app??

Asked by: Mack213
Hello Mack213, the User guide has all of the step by step instructions needed, please see the User Guide in the link provided. ^Ac http://www.lg.com/us/support-product/lg-55LA7400
Answered by: Amber C
Date published: 2018-02-26

The sound is silent and it's grayed out in settings. Any clue ?

Asked by: Scot119
What settings is the sound grayed out on? What source are we using on the TV? More information would be needed to offer assistance. Please contact our Customer Interactive Center at 800-243-0000 for additional support.
Answered by: NeilE
Date published: 2017-10-16

What is the current gen TV that is compatible to the 55la7400 TV

Asked by: Timsinks
There really aren't any current TVs that are comparable to the LG 55" Class Cinema 3D 1080P 240Hz LED TV with Smart TV (54.6" diagonally), Model # 55LA7400 which was a 2013 model and TVs have changed quite a bit since then. If you are still interested in a 1080p set, currently, the Full HD 1080p Smart LED TV - 55" Class (54.6" Diag) TVs in our lineup are the 55LH5750, 55LJ550M, and the 55LJ5500, but none of these have a 240 Hz refresh rate. With the current advancements in picture quality and technology being the 4K UHD HDR Smart LED TV - 55" Class (54.6" Diag) TVs, the majority of our 55" lineup are the 55UH615A, 55UH6550, 55UJ6300, 55UH7700, 55UJ6200, 55UJ6540, 55UH6150, 55UJ7700, 55UH6090, 55UH6030, and the 55UJ6300 and then the higher tiered SUPER UHD 4K HDR Smart LED TV w/ Nano Cell™ Display - 55" Class (54.6" Diag) TV models, 55SJ8500, 55SJ8000, 55UH8500, and the 55UH7650. None of the TVs mentioned above support 3D except for the 55UH8500 (Select 2016 models were the last to support 3D, 3d is not supported on any 2017 LG TVs)...^IFV
Answered by: LGJoel
Date published: 2017-08-22

Hi, I have the LG 3D to 55LA7400 - TC DOes it have Bluetooth options? Thanks  David

Asked by: Davesstudio
Our offices, in the United States, do not have product information for Australia. In order to obtain such information, it is recommended to check our subsidiary’s website, at http://www.lg.com/au/support/contact/support-here-to-help.jsp.
Answered by: NeilE
Date published: 2018-01-05

When I select SMART, I get a Pandora to become unavailable notice. If I click the "Do not display again..." button, it freezes the TV and I can do anything but turn it off. If I just hit the BACK button, notices leaves until I return to SMART.

Asked by: TopRok
We regret the inconvenience you have experienced with this television and its features. Press the HOME button. Take the remote control pointer to the TOP RIGHT of the screen and select NOTIFICATIONS. Selecting CLEAR ALL should remove this statement, preventing its return.
Answered by: NeilE
Date published: 2017-01-05

How do I connect my LA7400 to the wifi?

Asked by: TALGNet
We appreciate your interest in this television and its features. This model has been designed with a IEEE 802.11a/b/g/n Wireless LAN Standard. Press the SMART HOME button on the remote control. Select the SETTINGS icon, followed by the NETWORK option. Select the NETWORK CONNECTION option to start the CONNECTION process. For additional assistance, please contact our Customer Interactive Center at 800-243-0000.
Answered by: NeilE
Date published: 2016-12-29
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