• 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 Still working after 9 years 10 hours/day Great TV. Never used 3d or Apps. Only problem is TV uses CCFL tubes to light behind the screen. 2 years ago - two of 6 CCFL tubes stopped making light. I made those tubes light up again by using the menu to increase brightness to get the tube to relight. I've repeated this many times and it has been running at 100% brightness for 6 months. The next time the dark zones reappear, this TV gets recycled & I go shopping for another 55".
Date published: 2022-08-01
Rated 5 out of 5 by from LG Experience I bought this TV when 3D was popular and love everything LG makes and sells....not sure I would never need to buy another one bit if the times right, I will most definitely purchase another amazing TV sometime and wouldn't look at any other brand than LG....thank you for the best purchase I have ever made.
Date published: 2022-06-17
Rated 4 out of 5 by from Great Tv I got this tv with high hopes and it produced AAAA the only thing is finding the magic remote replacement then I find it’s now discontinued it not tv fault it was mine don’t let your puppy chew on remote
Date published: 2022-02-01
  • y_2022, m_8, d_18, h_20
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.32
  • cp_1, bvpage1
  • co_hasreviews, tv_4, tr_98
  • loc_en_US, sid_MD05032982, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_lg
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 3ms


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 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
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
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
  • y_2022, m_8, d_17, h_20CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.32
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_118
  • loc_en_US, sid_MD05032982, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_lg
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 4ms

Compare (0)