LG OLED55C66LB 55" C6 OLED evo AI 4K Smart TV

The LG OLED55C66LB 55" C6 OLED evo AI 4K Smart TV (2026) delivers extraordinary OLED picture quality, intelligent processing and premium gaming performance in one of the most versatile television sizes. Featuring LG's powerful Alpha 11 AI Processor Gen3, Brightness Booster technology and individually illuminated OLED pixels, the C6 produces spectacular contrast, rich colours and exceptional 4K detail. With Dolby Vision, Dolby Atmos, up to 165Hz VRR gaming and the intuitive webOS 26 smart platform, it's an outstanding choice for movies, sport, streaming and next-generation gaming in Ireland.

• 55" 4K OLED evo Display: Self-lit OLED pixels with Perfect Black and Perfect Colour for exceptional contrast and lifelike images.
• Brightness Booster: Advanced light-boosting technology delivers brighter highlights and enhanced HDR performance.
• Alpha 11 AI Processor Gen3: Powerful Dual AI Engine with intelligent 4K upscaling, advanced picture enhancement and precise image optimisation.
• Premium Gaming: 120Hz native refresh rate, up to 165Hz VRR, NVIDIA G-SYNC compatibility, AMD FreeSync Premium and four HDMI inputs.
• Dolby Vision & Dolby Atmos: Cinematic HDR picture quality, immersive audio and FILMMAKER MODE.
• webOS 26 Smart TV: Popular streaming apps, Apple AirPlay, Google Cast, AI Magic Remote and personalised AI features.

As part of LG's acclaimed C6 OLED evo range, the OLED55C66LB offers a compelling combination of flagship-level picture processing, impressive brightness and outstanding versatility. Its 55-inch screen is ideal for most living rooms, delivering an immersive cinematic experience without requiring the space of a much larger television. Whether upgrading from an older LED TV or replacing a previous-generation OLED, the C6 represents a significant step forward in home entertainment technology.

OLED evo Technology – Perfect Blacks and Exceptional Colour

The LG OLED55C66LB uses advanced OLED evo display technology, featuring over eight million individually illuminated pixels capable of producing their own light.

Unlike conventional LED televisions, which rely on a backlight, OLED pixels can switch off completely to produce genuinely deep blacks. This results in exceptional contrast, outstanding shadow detail and more realistic images without distracting backlight blooming.

LG's Perfect Black and Perfect Colour technologies enhance the viewing experience further, delivering impressive colour accuracy and consistent picture quality across a wide range of lighting conditions.

From atmospheric films and dramatic television series to vivid nature documentaries and live sporting events, the C6 delivers the remarkable depth and precision that makes OLED technology so appealing.

Brightness Booster – More Impact from Every Scene

The 55-inch LG C6 features Brightness Booster, using LG's advanced Light Boosting Algorithm to deliver enhanced brightness and improved detail.

By intelligently controlling the OLED panel's light output, Brightness Booster helps HDR highlights appear more vivid while maintaining the deep blacks and precise contrast for which OLED is renowned.

This means everything from sunlight reflecting off water to the bright lights of a nighttime cityscape appears with greater impact and definition.

Combined with AI Brightness Control, which adjusts the picture according to ambient lighting conditions, the C6 delivers a consistently impressive viewing experience throughout the day.

Alpha 11 AI Processor Gen3 – Intelligent Picture Processing

At the heart of the LG OLED55C66LB is the Alpha 11 AI Processor 4K Gen3 with Dual AI Engine, one of LG's most advanced television processors.

Designed to analyse and optimise content in real time, the processor intelligently refines sharpness, texture, colour and contrast to produce detailed, natural-looking images.

Alpha 11 AI Super Upscaling 4K helps lower-resolution television broadcasts and streaming services look clearer on the 4K display, while AI HDR Remastering enhances the brightness and colour of standard dynamic range content.

Dynamic Tone Mapping Ultra provides additional precision when processing HDR scenes, helping preserve fine detail in both bright highlights and darker areas of the picture.

The result is exceptional picture quality across everything from everyday television to premium 4K films and gaming.

55-Inch OLED – The Ideal Size for Everyday Entertainment

For many customers, a 55-inch television represents the ideal balance between an immersive viewing experience and practical room placement.

At this size, the LG C6 provides a large, detailed picture that's particularly impressive for films, sporting events and streaming without overwhelming a typical living room.

Its wide viewing angles also make OLED an excellent choice for families or anyone watching from different seating positions, helping maintain accurate colours and consistent contrast even when viewed off-centre.

With its combination of outstanding clarity, exceptional black levels and refined motion handling, the C6 makes everyday viewing feel distinctly more premium.

Premium 4K Gaming with Up to 165Hz VRR

The LG OLED55C66LB is an exceptional gaming television, combining OLED's virtually instantaneous pixel response with some of the most advanced gaming features available.

Its native 120Hz panel supports variable refresh rates up to 165Hz from compatible gaming PCs, producing exceptionally smooth gameplay with reduced screen tearing and stuttering.

NVIDIA G-SYNC compatibility, AMD FreeSync Premium, Auto Low Latency Mode and VRR ensure the C6 is well equipped for demanding modern games.

LG Game Optimiser and Game Dashboard provide convenient access to gaming settings, allowing you to adjust picture modes and performance options without navigating complicated menus.

With four HDMI inputs supporting 4K 120Hz and Dolby Vision gaming at 4K 120Hz, the C6 is an excellent partner for PlayStation 5, Xbox Series X and high-performance gaming PCs.

Dolby Vision, FILMMAKER MODE & Dolby Atmos

For film enthusiasts, the LG C6 combines Dolby Vision HDR with FILMMAKER MODE to deliver an authentic cinematic viewing experience.

Dolby Vision enhances compatible films and television programmes with dynamic picture optimisation, helping deliver exceptional contrast, realistic colours and greater detail in demanding scenes.

FILMMAKER MODE preserves the intended presentation of movies and television content, while Ambient Light Compensation helps adapt the viewing experience to different lighting conditions.

Dolby Atmos adds a greater sense of immersion to compatible content, supported by the television's integrated 40W, 2.2-channel speaker system.

LG's Alpha 11 AI Sound Pro provides virtual 11.1.2-channel surround sound processing, while WOW Orchestra allows the television's speakers to work alongside a compatible LG soundbar for enhanced audio performance.

webOS 26 – Smart Entertainment Made Simple

LG's latest webOS 26 smart TV platform brings together streaming services, live television, gaming and connected home features in a convenient, intuitive interface.

Enjoy access to popular streaming platforms including Netflix, Disney+, Prime Video, Apple TV and YouTube, subject to regional availability and subscription requirements.

The included AI Magic Remote makes navigating menus and searching for content straightforward, while AI Voice ID, AI Picture Wizard and AI Sound Wizard provide additional personalisation features.

Apple AirPlay and Google Cast allow easy content sharing from compatible smartphones and tablets, while LG ThinQ and Home Hub provide convenient control of compatible smart-home devices.

LG Shield adds an extra layer of protection for your personal information and connected smart TV experience.

Sleek Design with Flexible Installation Options

The LG OLED55C66LB combines premium picture quality with an elegant, contemporary design that complements modern living spaces.

Measuring just 45.1mm deep without its stand, the C6 has a slim profile that's equally suitable for wall mounting or placement on a television unit.

The included central pedestal stand has a compact 470 x 230mm footprint, making it particularly convenient for customers with narrower television furniture.

For wall-mounted installations, the television supports VESA 300 x 200mm brackets, allowing you to create a clean and modern entertainment setup.

LG OLED Care+ – 5-Year Limited Panel Warranty

LG's OLED Care+ programme provides five years of limited OLED panel protection, giving additional peace of mind when investing in a premium television.

Coverage applies to the OLED panel and is subject to LG's applicable warranty terms and conditions. Other components and labour may have different coverage periods or charges.

LG OLED55C66LB – Technical Specifications

Buy the LG OLED55C66LB 55" C6 OLED evo TV in Ireland from northXsouth

Experience outstanding OLED picture quality, intelligent processing and premium gaming performance with the LG OLED55C66LB C6 55-inch 4K Smart TV. Available from northXsouth, your independent television and home entertainment specialist serving customers throughout Ireland and Northern Ireland.