55'' Class (54.6'' Diagonal) LED HDTV


  • Full HD 1080p Resolution
  • LED Backlighting
  • MCI 240
55" Class (54.6" Diagonal) LED HDTV


    • Screen Size
    • 55"


    • Screen Size Class (diagonal)
    • 55" Class (54.6" diagonal)
    • Resolution
    • 1920 x 1080
    • Display Type
    • LED
    • MCI
    • 240


    • TV without Stand (WxHxD)
    • 48.94" x 28.54" x 2.24"
    • TV with Stand (WxHxD)
    • 48.94" x 30.39" x 10.04"
    • TV without Stand Weight
    • 39.7 lbs
    • TV with Stand Weight
    • 40.6 lbs
    • TV Shipping Dimensions (WxHxD)
    • 52.13" x 31.22" x 6.61"
    • Shipping Weight
    • 50.3 lbs


    • Triple XD™ Engine
    • 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
    • Yes


    • Speaker System
    • 2ch Speaker System
    • Audio Output Power (Watts - THD 10%)
    • 20W
    • Mono/Stereo/Dual (MTS/SAP)
    • Yes
    • Dolby® Digital Decoder
    • Yes
    • Sound Mode
    • 6 Modes
    • Clear Voice II
    • Yes
    • Sound Optimizer
    • 3 Modes
    • Optical Sound Sync
    • Yes


    • Screen Share
    • Yes
    • - MHL (Mobile HD Link)
    • Yes


    • Video
    • DivX HD
    • Audio
    • AC3 (Dolby Digital), EAC3, HE-AAC, AAC, MPEG, MP3, PCM
    • Photo
    • JPEG


    • RF In (Antenna/Cable)
    • 1 (Rear)
    • Component Video In(Y, Pb, Pr + Audio)
    • 1 (Rear)
    • Composite In (AV)
    • 1 (shared w/Component)
    • HDMI®
    • 2 (1 Rear, 1 Side)
    • Digital Audio Out (Optical)
    • 1 (Rear)
    • USB 2.0
    • 1 (Side)
    • RS232 (USB port)
    • 1 (no power on)


    • VESA® Size (mm)
    • 400 x 400


    • Power Supply (Voltage, Hz)
    • 100V ~ 240V, 50/60 Hz
    • Standby Mode
    • 0.3W


    • Limited Warranty
    • 1 Year Parts & Labor
    • UPC
    • 719192595026

What people are saying

Rated 4 out of 5 by from Got this a few years ago....great value for such a large set.
Date published: 2021-04-07
Rated 5 out of 5 by from A great TV! I got this model of TV brand new over 5 years ago, and it's still in perfect working order. Haven't ever had an issue with it. When it's time for a new TV, I'll definitely be getting another LG!
Date published: 2020-06-22
Rated 5 out of 5 by from Good TV at a good price I've had this for about 3-4 years and have had no issues with it. I'm about to replace it as my main TV with another unit. I will certainly consider an LG for a replacement.
Date published: 2019-11-10
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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.

Where can I buy a replacement stand for the tv?

Asked by: Jess547
A replacement stand for the LG 55'' Class (54.6'' Diagonal) LED HDTV, Model # 55LB5900 can be ordered from our Authorized Parts Distributor affiliate, Encompass Parts, (800) 432-8542, https://encompass.com...^IFV
Answered by: Ivanf
Date published: 2020-10-14

We just bought a lg 55 inch tv but the box measures 52 inches long how is that possible

Asked by: Kaye s
The screen size is measured diagonally from one corner to the other.
Answered by: ChrisPSM
Date published: 2020-01-15

How do I connect jbl 3.1 sound bar to it? The external speaker option only shows optical. 

Asked by: Jum93
An audio system can be connected to this TV using an Optical cable.
Answered by: ChrisPSM
Date published: 2020-06-10

does this tv support HDMI-CEC?

Asked by: kmishler103
The HDMI ports on the LG 55'' Class (54.6'' Diagonal) LED HDTV, Model # 55LB5900 are HDMI-CEC compliant. HDMI-CEC is packaged as Simplink on LG TVs...^IFV
Answered by: Ivanf
Date published: 2019-11-25

My screen shows picture but it blinks on and off,,,what does that mean.

Asked by: Keithw
Thank you for your review of your LG TV. I am sincerely sorry for the unfortunate experience you have had with your TV. Please contact LG Customer Support so that we can better investigate your issues and assist you towards a resolution. You can contact our Customer Support by any of the below options: Phone: 1-800-243-0000 LiveChat: https://www.lg.com/us/support/chatbot Email: https://www.lg.com/us/support/email-appointment Facebook Messenger: https://www.facebook.com/LGUSA/ Twitter: @LGUSSupport The LG Community Forum is also a great resource for getting help from other LG customers: https://lgcommunity.us.com/
Answered by: ChrisPSM
Date published: 2019-09-11

Is the 55LB5900 compatible with Chromecast?

Asked by: Bill3690
If you purchase a Chromecast device, you can use it with the TV (TV just act’s as a monitor). ^AC
Answered by: Amber C
Date published: 2018-11-06

Recently started to have black lines appear, predominantly on the left side - using all aspect ratios

Asked by: TheGibb
We hate to see you are experiencing an issue with lines appearing on your TV. You can troubleshoot this from the following help article: https://www.lg.com/us/support/product-help/CT10000018-1387209695776-horizontal-vertical-lines-or-partial-image ^CP
Answered by: ChrisPSM
Date published: 2018-10-02

What size screws do I need for the legs?

Asked by: Smiley305
Hello, you would need 4 EA of M4 x L14. ^AC
Answered by: Amber C
Date published: 2018-09-04
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