LG 50NU840B6LA 50″ NANO 4K AI Smart TV (Black)

LG 50NU840B6LA 50″ NANO 4K AI Smart TV is an advanced, medium-to-large home entertainment display engineered to deliver crisp color accuracy, enhanced clarity, and smart AI capabilities. Designed with a Linear Flow frame featuring ultra-narrow bezels and a solid dark cabinet finish, it seamlessly integrates into modern living rooms, master bedrooms, and home entertainment setups.

Powered by LG’s Alpha 7 AI Processor 4K Gen9 paired with Nano Detail Enhancer technology, the 50NU840B6LA refines contrast, textures, and depth at a nano level to reveal true 4K clarity. Operating on the latest webOS smart platform with integrated AI Hub features—including multi-AI search (powered by Google Gemini and Microsoft Copilot) and data security protected by LG Shield—it delivers personalized viewing, immersive virtual spatial audio, and smooth smart home connectivity.

Key Features

• 50-Inch NANO 4K Display – Ultra-high-definition 4K resolution (3840 x 2160) featuring vibrant NanoCell color purity and fine contrast.
• Alpha 7 AI Processor 4K Gen9 & Nano Detail Enhancer – Intelligent AI processing analyzes image frames in real-time to optimize texture, contrast, and three-dimensional depth.
• Next-Gen webOS & AI Hub – Intuitive smart TV platform featuring AI Concierge, My Page personalization, and multi-AI assistant search (Gemini & Copilot).
• HDR10 Pro & FILMMAKER MODE™ – Delivers optimized dynamic tone mapping for brighter highlights, deeper shadows, and authentic studio-intended cinematic visuals.
• AI Sound & Virtual Surround Processing – Multi-channel virtual spatial audio processing upmixes 2-channel audio to fill the room with dynamic surround sound.
• Linear Flow Modern Design – Minimalist slim bezel frame maximizes effective display space to complement modern home interiors.
• Enhanced Smart & Gaming Connectivity – Features Wi-Fi, Bluetooth, HDMI (with eARC & ALLM), USB, VRR support for gaming, and data security powered by LG Shield.

Specifications

Feature	Specification
Model	50NU840B6LA
Screen Size	50 Inches
Display Type	NANO 4K UHD LED
Resolution	4K Ultra HD (3840 x 2160)
Picture Processor	Alpha 7 AI Processor 4K Gen9
HDR Format	HDR10 Pro, HLG
Operating System	LG webOS (with AI Hub & LG Shield)
Smart AI Support	Voice Control, Multi-AI Assistant Search (Gemini & Copilot)
Audio Output	20 Watts (Virtual Multi-Channel AI Sound)
Wireless Connectivity	Wi-Fi, Bluetooth, Screen Share / Apple AirPlay
Physical Ports	3 x HDMI (eARC / ALLM), USB, LAN (Ethernet), Optical Out
Tuner Support	Built-in Digital Receiver (DVB-T2/S2)
Dimensions (WxDxH)	Approx. 1112 x 70.8 x 649 mm (Without Stand)

Common FAQs

Is the LG 50NU840B6LA a native 4K TV?

Yes, it features a native 4K Ultra HD resolution (3840 x 2160 pixels), offering four times the resolution and detail of standard 1080p Full HD displays.

How does the Alpha 7 AI Processor 4K Gen9 improve picture quality?

The Alpha 7 AI Processor uses advanced algorithms and GPU/CPU power to optimize images at a nano level, sharpening textures, reducing noise, and upscaling lower-resolution content to near-native 4K quality.

What smart AI features are included with this TV?

The 50NU840B6LA includes LG’s AI Hub with voice-controlled search using multi-AI models (Google Gemini and Microsoft Copilot), personalized recommendations via AI Concierge, and My Page custom home screens.

Is this model good for gaming?

Yes, it includes gaming enhancements such as Auto Low Latency Mode (ALLM), Variable Refresh Rate (VRR) support, and HDMI eARC for high-performance console gaming with minimal input lag.

Can the LG 50NU840B6LA be mounted on a wall?

Yes, the TV comes equipped with standard VESA wall-mount screw patterns on the back panel, making it compatible with standard fixed, tilt, or full-motion 50-inch wall mounts.