LG OLED77C66LB 77 Inch OLED evo AI C6 4K Ultra HD HDR Smart TV 2026

LG OLED77C66LB.AEK 77 Inch OLED evo AI C6 4K Ultra HD HDR Smart TV (2026) – Cinematic Brilliance at Home

Bring cinema-level viewing into your living room with the LG OLED77C66LB 77 Inch OLED evo AI C6 4K Ultra HD HDR Smart TV. This 77-inch OLED evo model is built to push picture quality, brightness and smart features further than before, making it a standout choice for film lovers, gamers and everyday streaming.

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A Major Leap in OLED Picture Quality

At the heart of this TV is the new Primary RGB Tandem OLED panel combined with Hyper Radiant Colour Technology. In simple terms, this means brighter highlights, deeper blacks and far richer colour detail than traditional OLED screens.

Unlike standard panels, this advanced structure boosts light efficiency while maintaining OLED’s signature contrast. The result is a picture that feels more three-dimensional, with subtle shading and realism that stands out in both dark and well-lit rooms.

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Hyper Radiant Colour – Brighter, Bolder, More Realistic

The Hyper Radiant Colour system is designed to take colour accuracy to a new level. Skin tones look more natural, landscapes gain depth, and HDR scenes appear more dynamic without looking over-processed.

With the added Brightness Booster, this TV delivers significantly higher luminance compared to earlier C-series models, helping it perform better in bright living spaces where OLED TVs traditionally struggled.

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Primary RGB Tandem Panel Technology

This model introduces LG’s advanced Primary RGB Tandem structure, previously reserved for ultra-premium ranges. It separates and enhances primary colours for improved precision and brightness control.

The benefit is simple: images appear cleaner, more defined and more consistent across all types of content—from 4K streaming to live sports.

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Anti-Reflection Screen for Clear Viewing Anywhere

The screen includes an advanced anti-reflection coating, designed to reduce glare from windows and room lighting. This helps maintain deep blacks and vibrant colours even during daytime viewing, making it a practical choice for real-world living rooms—not just dark cinema-style setups.

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Alpha 11 AI Processor Gen 3 – Smarter Picture & Sound

Powered by the Alpha 11 AI Processor Gen 3, this TV constantly analyses what you’re watching and optimises it in real time.

It improves:

• Sharpness and clarity through AI upscaling
• Colour balance for more natural tones
• Motion handling for smoother fast action
• Sound clarity for clearer dialogue and detail

Dual AI upscaling also enhances lower-resolution content, making older shows and streaming content look closer to native 4K quality.

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Built for Cinema at Home

With a native 120Hz OLED evo display and support for Dolby Vision, this TV is designed for smooth, cinematic playback. Films feel fluid without losing detail, while HDR content delivers striking contrast and depth.

Filmmaker Mode with Ambient Light Compensation adjusts the picture based on your room lighting, helping you see films the way they were intended—without over-enhancement or distortion.

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Gaming Performance That Keeps Up

Gamers get serious performance benefits here. With a response time under 0.1ms and support for advanced refresh rates, this TV reacts almost instantly.

Key gaming features include:

• HDMI 2.1 connectivity for next-gen consoles and PC gaming
• 4K 120Hz console gaming support
• Up to 4K 165Hz PC gaming support
• NVIDIA G-SYNC & AMD FreeSync Premium compatibility
• Dolby Vision Gaming support
• LG Game Optimiser for quick settings access

The result is smooth, tear-free gameplay with minimal lag and excellent responsiveness.

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AI-Powered Sound Experience

Sound is just as intelligently processed as the picture. AI Sound Pro and Precision Sound Master Pro enhance clarity, while voice remastering improves dialogue so it’s easier to hear even during busy scenes.

For a more immersive feel, virtual 11.1.2 upmixing creates a wider, cinema-style soundstage. Pairing with an LG soundbar enables WOW Orchestra, blending TV and soundbar audio together for fuller, richer output.

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webOS 26 – Smarter, Faster Smart TV Experience

The latest webOS 26 brings a cleaner, more responsive Smart TV interface with deeper AI integration.

You get:

• Faster content search and recommendations
• Microsoft Copilot integration for smarter assistance
• Optional Google Gemini features for enhanced personalisation
• AI-based content suggestions tailored to your viewing habits
• Guaranteed five years of OS updates for long-term support

It’s designed to feel more like a personal entertainment hub than a traditional TV menu system.

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Everyday AI Features That Learn From You

This TV doesn’t just respond—it adapts. With AI Concierge, AI Agent and voice recognition, it learns what you watch and suggests relevant content without you needing to search manually.

An AI Chatbot also helps with troubleshooting and navigation, making the system easier to use for everyone in the household.

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Key Specifications

• Screen Size: 77 Inch
• Resolution: 4K Ultra HD
• Display: OLED evo with Primary RGB Tandem panel
• Processor: Alpha 11 AI Processor Gen 3
• Refresh Rate: Native 120Hz (up to 165Hz for PC gaming)
• HDR Support: Dolby Vision, HDR10, HLG
• Smart Platform: webOS 26
• Gaming: HDMI 2.1, VRR, G-SYNC, FreeSync Premium
• Audio: AI Sound Pro, Virtual 11.1.2 upmixing
• Anti-reflection display technology

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Final Word

The LG OLED77C66LB is built for people who want more than just a big screen. It delivers a serious upgrade in brightness, colour accuracy, smart features and gaming capability—while keeping OLED’s signature contrast and depth. Whether you’re watching films, gaming or streaming daily content, it’s designed to make everything look sharper, brighter and more lifelike.

Technical Specifications 

General

Additional Information	Type of Antenna: Coaxial
Features	Brightness Booster & α11 AI chip – delivers vivid visuals Certified Perfect Black and Colour – sharp contrast clarity Smart webOS with AI remote – seamless intuitive control Dolby Vision & Filmmaker mode – immersive cinema feel
Product Type	TV
Barcode/EAN	8806096749845

Connectivity

Bluetooth	Yes
HDMI	Yes
HDMI Version	4ea (supports 4K 120Hz, eARC, VRR, ALLM, QMS, QFT)
Headphone	Yes
Number of HDMI Ports	4
Number of USB Ports	2
Smart TV	Yes
USB	Yes
Wi-Fi	Yes
Wireless LAN	Yes

Programmes & Functions

Digital Tuner	Yes
Electronic Program Guide	Yes

Design Elements

Colour	Black - Stripe Pattern back
Colour Group	Black

Features

Speakers	1
TV Services	BBC iPlayer, ITV Player, Channel 4, My5, NOW, Netflix, Amazon Prime Video, Rakuten TV, Disney+, Apple TV, YouTube and more
USB Recording	Yes

Technical Details

Operating System	webOS 26
RMS Output Power	40W
Smart App Control	LG ThinQ

Display

Aspect Ratio	16:09
Backlight Technology	OLED
Enhanced Refresh Rate	120Hz
Screen size	77 in
Screen Technology	OLED
Standard Refresh Rate	120Hz

Accessories

VESA Mount Compatible	Yes
Vesa Mount Size	300 x 200

Efficiency & Standard

Energy Efficiency Class

E

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