PRODUCT OVERVIEW

Dahua LDH55-LAI400L

The Dahua LDH55-LAI400L is a professional-grade digital signage solution designed for continuous 24/7 commercial operation. It targets retail, corporate, transportation, and public information environments. Built with an industrial panel, it emphasizes reliability and long operational life. The unit integrates a smart Android-based system for content playback and management.

Display Performance

This model features a 55-inch 4K UHD (3840×2160) LCD panel with wide viewing angles of up to 178°. Brightness typically ranges around 500–700 cd/m² depending on configuration, making it suitable for indoor high-visibility applications. The IPS/VA panel options ensure balanced color accuracy and contrast. It supports split-screen layouts for flexible content presentation.

System & Processing

The device runs on Android 11 with a quad-core A55 processor, supported by 4GB RAM and 32GB internal storage. This configuration allows smooth playback of 4K content and multi-format media decoding. It supports modern codecs such as H.265 and H.264 for efficient video performance. The system is optimized for stable, long-duration operation without overheating.

Connectivity & Integration

LDH55-LAI400L provides multiple connectivity options including HDMI 2.1 input, USB 2.0/3.0 ports, TF card support, and Gigabit Ethernet. Wi-Fi support may be optional depending on deployment variant. These interfaces allow easy integration with media players, CMS platforms, and external control systems. It is designed to fit seamlessly into centralized digital signage networks.