LG OLED77B5PUA 77" B5 Series 4K OLED Smart TV

The LG OLED77B5PUA is a 77-inch 2025 4K OLED smart TV designed for premium home entertainment, movies, sports, and gaming. With self-lit OLED pixels, it delivers deep black levels, strong contrast, and rich colour accuracy for a more cinematic viewing experience.

Powered by LG’s α8 AI Processor 4K Gen2, this TV enhances picture quality, upscales lower-resolution content, and optimizes each scene for sharper detail and more natural images. The 4K Ultra HD resolution provides crisp clarity on a large 77-inch screen, making it ideal for living rooms, home theatres, and immersive viewing setups.

For HDR content, the LG B5 supports Dolby Vision, HDR10, and HLG, helping movies and shows display improved brightness, contrast, and colour depth. OLED technology also provides wide viewing angles, so the picture remains clear even when viewed from the side.

Gamers will appreciate the 120Hz native refresh rate, G-Sync compatibility, and FreeSync support, which help reduce screen tearing and provide smoother motion during fast-paced gameplay. Dolby Atmos support adds a more spacious audio experience, while LG’s smart TV platform with ThinQ AI and Magic Remote makes streaming and navigation simple..

Key Features

77-inch 4K OLED display

Self-lit OLED pixels for deep blacks and strong contrast

4K Ultra HD resolution: 3840 x 2160

α8 AI Processor 4K Gen2

120Hz native refresh rate

Dolby Vision, HDR10, and HLG support

Dolby Atmos audio

G-Sync compatible

FreeSync compatible

LG ThinQ AI smart TV features