• Self-lighting OLED: Perfect Black, Intense Color, Infinite Contrast
  • α9 Gen 3 AI Processor 4K with AI Picture Pro/Sound Pro
  • Dolby Vision IQ and Dolby Atmos
  • webOS + ThinQ AI w/ Magic Remote
  • Gaming: G-SYNC Compatible, FreeSync, VRR, ALLM
LG CX 55 inch Class 4K Smart OLED TV w/ AI ThinQ® (54.6" Diag)


    • Display Type
    • OLED
    • Display Resolution
    • 4K Ultra HD (3,840 x 2,160)
    • Wide Viewing Angle
    • Yes
    • Dimming Technology
    • Pixel Level Dimming


    • Picture Processor
    • α9 Gen 3 AI Processor 4K
    • Refresh Rate
    • 120Hz (Native)
    • HDR (High Dynamic Range)
    • Cinema HDR (Dolby Vision®, HDR10, HLG), Dolby Vision IQ, HDR Dynamic Tone Mapping Pro
    • Contrast
    • Advanced Contrast Enhancer, Face Enhancing, Ultra Luminance Pro
    • Clarity
    • Quad Step Noise Reduction, Frequency Based Sharpness Enhancer
    • Color
    • Intense Color, Billion Rich Colors, Advanced Color Enhancer, True Color Accuracy Pro
    • Motion
    • OLED Motion Pro
    • Resolution Upscaler
    • AI Upscaling


    • G-SYNC Compatible
    • Yes
    • FreeSync™
    • Yes
    • VRR (Variable Refresh Rate)
    • Yes
    • ALLM (Auto Low Latency Mode)
    • Yes
    • Response Time
    • >1 ms
    • HGiG
    • Yes


    • LG ThinQ® AI
    • Yes
    • Google:
    • Google Assistant Built-in "Works with" Google Assistant
    • Alexa:
    • Alexa Built-in "Works with" Alexa
    • Apple
    • Apple Airplay2, Apple Homekit
    • Intelligent Voice Recognition
    • Yes
    • Home Dashboard
    • Yes
    • AI Picture Pro / AI Picture
    • AI Picture Pro
    • Auto Genre Selection
    • Yes (SDR/HDR/Dolby HDR)


    • Operating System
    • webOS
    • Magic Remote Control
    • Yes (Point, Click, Scroll, Voice)
    • Universal Remote Control
    • Yes (Auto Device Detection)
    • LG Channels
    • Yes
    • LG Content Store (App Store)
    • Yes
    • Full Web Browser
    • Yes
    • Gallery Mode
    • Yes
    • Sports Alert
    • Yes


    • Speaker System
    • 2.2 Channel
    • Output Power
    • 40W (20W Woofer)
    • Speaker Direction
    • Front Firing (Reflector)
    • AI Sound Pro / AI Sound
    • AI Sound Pro
    • Dolby Atmos:
    • Yes
    • WiSA Ready
    • Yes (Separate Dongle Purchase Required)
    • Surround Mode
    • OLED Surround
    • Audio Codec
    • AC4, AC3 (Dolby Digital), EAC3, HE-AAC, AAC, MP2, MP3, PCM, WMA, apt-X (refer to manual)
    • Bluetooth Surround Ready
    • Yes
    • LG Sound Sync
    • Yes


    • Wi-Fi® Standard
    • Wi-Fi Certified 802.11ac
    • Bluetooth® Support
    • Version 5.0
    • IP Control
    • Yes
    • HDMI-CEC (Simplink)
    • Yes
    • TV Tuner
    • ATSC, Clear QAM
    • Smart Phone Connectivity
    • Yes


    • HDMI Input (HDCP 2.2)
    • 1 (rear) / 3 (side)
    • HDMI Audio Return Channel (ARC)
    • eARC (HDMI 2)
    • USB Ports (v 2.0)
    • 2 (rear) / 1 (side)
    • RF Connection Input (Antenna/Cable)
    • 1 (rear)
    • AV Input
    • 1 (rear) breakout cable required, not included
    • Ethernet Input
    • 1 (rear)
    • RS-232C Input (Mini Jack)
    • 1 (rear)
    • Digital Audio Output (Optical)
    • 1 (rear)
    • Headphone Out
    • 1 (rear)


    • Power Supply (Voltage, Hz)
    • AC 120V, 50/60Hz
    • Standby Power Consumption
    • Under 0.5W


    • TV Dimensions with Stand (WxHxD)
    • 48.3" x 29.1" x 9.9"
    • TV Dimensions without Stand (WxHxD)
    • 48.3" x 27.8" x 1.8"
    • Packaging Dimensions (WxHxD)
    • 55.3" x 32.9" x 8.1"
    • Stand Width
    • 39.3"
    • TV Weight with Stand
    • 50.7 lbs
    • TV Weight without Stand
    • 41.7 lbs
    • Packaging Weight
    • 63.3 lbs
    • VESA Mounting (W x H)
    • 300 x 200
    • UPC:
    • 719192637085


    • Remote
    • Magic Remote
    • Remote Control Battery
    • Yes
    • Power Cable
    • Yes
    • Quick Start Guide
    • Yes
    • E-Manual
    • Yes


    • 2020 Model
    • Yes
    • Country of Origin
    • Mexico


    • Limited Warranty
    • Please see Support tab for full details on the limited warranty

What people are saying

Rated 1 out of 5 by from two magic remotes neither one compatible Purchased 2 LG Magic remotes, neither one is compatible with LG OLED TV
Date published: 2023-05-26
Rated 5 out of 5 by from Awesome I enjoy the TV very much id get another if I could love it my wife loves it my kids like it awesome tv
Date published: 2023-05-23
Rated 1 out of 5 by from Poor experience with repair My OLED display periodically shut down (from 40 minutes to 4 hours after being turned on) I had contact LG's call center for 4 times. It apparently is in India and the accents were so strong that it was difficult to understand them. The only solution that I have found is unplug which is difficult as it is wall mounted.
Date published: 2023-05-07
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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.

I bought this oled77cxpua in 2020.yesterday it developed severe horizontal banding.I have tried all the quick fixes including pixel refresh . nothing works. local repair shop is busy for next 2 months. what to do now

Asked by: 0led77cxpua
Hi there! Sorry to hear about your OLED TV. You may send us a private message on Facebook or Twitter using @LGUSSupport, and include your contact info, or reach us at our customer service line at (800) 243-0000, and we will be happy to assist you further. Thank you. ^Jolly
Answered by: Jolly20
Date published: 2023-03-22

I have misplaced the LG Remote for my OLED77CXPUA and I need to replace it, but I do not see a compatible Magic Remote listed among the available accessories.

Asked by: Jame44
The LG CX 77 inch Class 4K Smart OLED TV w/ AI ThinQ® (76.7'' Diag), Model # OLED77CXPUA is compatible with the LG AN-MR20GA Magic Remote Control for Select 2020 LG Smart TV w/ AI ThinQ®. The remote can be ordered from our LG Authorized Parts Distributor affiliate: Encompass Parts Distribution, 775 Tipton Industrial Dr. Suite F Lawrenceville, GA 30046 Sales: 866-779-7906 Fax: 800-552-1431 ...^Ivan
Answered by: Ivan4826
Date published: 2022-09-06

What is the hardwire ethernet connection speed. I have had the TV for 2 years and finally got around to connecting the hardwire. It looks like it is only connecting at 100Mbps. That seems odd for a TV with such advanced features?

Asked by: Chucksteer
The Ethernet port for the LG CX 55 inch Class 4K Smart OLED TV w/ AI ThinQ® (54.6'' Diag), Model # OLED55CXPUA is 100Mbps as you have noted. That is not odd at all. That is the speed for Ethernet ports on a large majority of TVs currently in the market regardless of brand or manufacturer. A good internet speed is anywhere between 25 and 100 Mbps. Speeds of 25 Mbps allow up to 2 devices to stream, surf the web and check emails. 50 to 100 Mbps allow a few more people to stream in HD or even 4K, stream music, game, browse social media, and work from home. If you want to stream 4K content to get the best picture for your 4K smart TV, you'll need a connection of at least 25 Mbps...^Ivan
Answered by: Ivanf
Date published: 2022-06-13

Where do i hook up my external digital antenna on my lg m4201c -BA televison?

Asked by: Lost heart_n_soul
Regrettably, LG m4201c-BA is not an LG model number. Please check the nameplate attached to the back of the TV again for the correct model number. On LG TVs, there is an F-type, 75-Ohm Coaxial connector on the back labeled 'Antenna/Cable In' which is the connector that is used to connect an external or internal antenna...^Ivan
Answered by: Ivanf
Date published: 2022-03-08

Any gamers? Is it best to use TV HDMI inputs and use the optical out - Hooking up Xbox Series X, PS5 and newest AppleTV - or better to run through Denon receiver AVR1700? Thanks

Asked by: tarbsdad
Please seek recommendations/opinions on the forums at; they are a great resource for getting help from other LG customers. Thank you. ^Daphane
Answered by: LG Electronics
Date published: 2021-12-27

How does the picture change if viewing on an angle? Which tv is best viewed on an angle?

Asked by: El34
OLED TVs have wide viewing angles and much better viewing angles than LED LCD TVs. Compared to other TV technologies, those technologies cannot come close to matching up well with OLED TV technology when it comes to wide-angle viewing and OLED TVs will provide an excellent viewing experience even from the most extreme angles. That’s because OLED panels have no need for backlighting and boast self-emissive pixels, which provide almost perfectly uniform screens—even when viewing from the side. The LG CX 65 inch Class 4K Smart OLED TV w/ AI ThinQ® (64.5'' Diag), Model # OLEDCXPUA is a 2020 model and it delivers the same exceptional picture quality as other OLED screen options. Since this OLED TV can turn off individual pixels, the black uniformity is perfect. It has great viewing angles, and the image remains accurate when viewing from the side, which is great for a wide seating area...^Ivan
Answered by: Ivanf
Date published: 2021-10-26

As a "non-techie" how easy is set-up?

Asked by: AGB1945
How easy it is to set up the LG CX 65 inch Class 4K Smart OLED TV w/ AI ThinQ® (64.5'' Diag), Model # OLED65CXPUA depends on your skill level even as a "non-techie". The process is simple, quick, and has easy instructions to follow. There are several video tutorials that you can find on YouTube that guide you through the initial setup for the TV that you can watch to assess if that is something that will be easy for you or that you can follow to set the TV up. The following links are some of the YouTube tutorials that you can review before purchasing the TV to assess the ease of installation: ...^Ivan
Answered by: Ivanf
Date published: 2021-09-23

What tv bracket do you recommend for 77 inch oled lg

Asked by: Johnathan12
Any VESA Compliant Wall Mount Bracket that supports the VESA Wall Mount Interface pattern on the TV can be used to mount the TV. Wall Mount brackets come in three types; Fixed Wall Mounts, Tilting Wall Mounts, or Full Motion (aka Articulating Wall Mounts). As long as they are VESA Compliant & they support the VESA Wall Mount Interface Pattern on the TV, regardless of brand or manufacturer, they will work. The LG CX 77 inch Class 4K Smart OLED TV w/ AI ThinQ® (76.7'' Diag), Model # OLED77CXPUA is a VESA compliant display that has a VESA Wall Mount Interface Pattern of 400 x 200. The LG EZ Slim Wall Mount, Model # OLW480B is a full-motion wall mount that is recommended in the owner's manual for the TV. The type of wall mount bracket that works best for you will be the one that best suits your needs...^Ivan
Answered by: Ivanf
Date published: 2022-01-21
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