LG OLED77Z39LA
- TVs
- 77″
- 8K
- OLED
- 120 Hz
Uses 15% more energy than the average for 77-inch TVs on Wattabill (227 models).
Running cost at a glance
- €62.15 per year
- €622 over 10 years
- 215 kWh per year
- 45 kg CO₂e per year from electricity use
Your country and usage
- Electricity at €0.2896 per kWh (household price with taxes, Eurostat 2025-S2).
- 210 g CO₂e per kWh generated in 2023 (European Environment Agency). Counts use only, not manufacturing.
We assume prices stay the same over the years.
Electricity prices in all EU countries
About this model
Text from the manufacturer, via Icecat.
- 8K resolution with the α9 AI Processor 8K Gen6
- Bright, bold visuals of Brightness Booster Max
- Clean and understated Gallery Design
- Smart Functionality, including ThinQ AI, WebOS, and Hands-Free Voice Recognition
- Immersive entertainment with Dolby Atmos & Vision, VRR, G-sync, and Freesync
10 Years of LG OLED.
A Decade at the Top.
The Out-of-This-World 8K Experienceα9 AI Processor 8K Gen6
Evolution at Its Core
Enter the world of α-realism1. A portal to new universes and the sensation of feeling like you're really there. Be the main character surrounded by the exceptional picture and sound refinements of α9 AI Processor 8K Gen6.
Brightness Booster Max
Behold Even Brighter OLED
LG OLED's iconic self-lit pixels shine brighter2 than before with the Light Boosting Algorithm, Light Control Architecture, and other refinements driven by α9 AI Processor 8K Gen6.
Read more
5-Year Panel Warranty
Confidence in Craftsmanship
LG OLED's premium craftsmanship allows us to offer you a generous 5-year panel warranty3.
Sleek OLED Design
Clean-Cut Sophistication
LG OLED Z3's clean design adds understated style to your space for an aesthetic that goes beyond the usual luxury. Your home feels like an art exhibition with the 77-inch Gallery Design, while the 88-inch model with a Floor Stand sits proud like a piece of furniture.
SELF-LIT OLED
No Backlight Necessary
Pixels reachest their brightest, most brilliant potential when they stand alone and shine without the dull glow of a backlight.
Hear Sounds and Sights Come Together as One
TV and Soundbar in Harmony
Use your LG OLED TV with an LG Soundbar, and they work together like one speaker to create three-dimensional concert hall sound.
More Sound Settings
Enjoy better control of your soundbar through your LG TV's on-screen settings menu.
webOS 23 new HomeTailored to Your Liking
From your favourite content to your preferred way to view, webOS 23 new Home is the hub that revolves around you.
My Profile
Get tailored movie recommendations, an overview of your team's next games, and your own notifications, all from one place dedicated to you.
Sights and Sounds Come To Life
Spellbinding Cinema
Scenes come to life with Dolby Vision's ultra-vivid picture and the immersive, spatial audio of Dolby Atmos.
The True Picture
Picture processing can remove a movie's intended charm. Filmmaker Mode preserves the director's cut for a more authentic way to enjoy films.
Endless Libraries of Entertainment
Tune into all the streaming services you love straight from your TV, including Netflix4, Paramount+, SkyShowtime, Disney+5, Prime Video6, Apple TV+7, and LG Channels.
Ultimate GamingEmbark on Epic Gaming Adventures
Feel like a winner every time you play. A blazing-fast 0.1ms response time, NVIDIA G-Sync compatibility, AMD FreeSync Premium, and VRR support come together to create a clear, smooth picture that can't be rivaled, while the gamer-oriented UX and simple game streaming let you dive straight in and play on.
Game Dashboard & OptimizerGame Settings at a Glance
Apply the ideal settings for your game genre and playing environment with Game Optimizer. Dive into Sound Tab and amplify the action or Game Tab to make sure everything looks and feels just right. There's no need to pause. Simply access the menu from Game Dashboard, which hovers over the action while you play.
Cloud GamingA World of Games to Play
Access GeForce NOW directly from your TV and discover a library with a colossal number of games to choose from.
Specifications
| Brand | LG |
|---|---|
| Model | OLED77Z39LA |
| Energy class | G |
| Screen size | 77″ (194.7 cm) |
| Power in on mode (SDR) | 147 W |
| Energy class (HDR) | G |
| Power in on mode (HDR) | 245 W |
| Standby | 0.5 W |
| Networked standby | 2 W |
| Resolution | 7680 × 4320 |
| Aspect ratio | 16:9 |
| Panel | OLED |
| Refresh rate | 120 Hz |
| Power supply | Internal |
| Guaranteed support | 8 years |
| Software updates | 8 years |
| Spare parts available | 8 years |
| On the market since | February 13, 2023 |
| EPREL registration number | 1411807 |
Source: EPREL, European Commission. Data updated October 13, 2026.
Product description and images: Icecat (Open Icecat), provided as is, without warranty.