BenQ ST5504 Digital signage flat panel 139.7 cm (55") LCD 350 cd/m² 4K Ultra HD Black Built-in processor Android 18/7

Your essential signage solution

Boost school communication with the ST04 4K Smart Signage series. Its advanced hardware, intuitive tools, Android OS, and security features help you deliver clear, effective information to support your educational goals and streamline operations.

Reliable performance

Experience vivid visuals, 18/7 operation, and both portrait and landscape display modes.
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Easy control
Enjoy quick and easy content management and remote device control.

Robust security

Ensure your displays stay safe with the ST04’s hardware and software security features.

Digital signage done right
Your message made clear
The ST04 series features a 350-nit, 4K display, 10-bit color depth, and 18/7 operation, ensuring bright, vibrant visuals for cafeterias, hallways, libraries, and more.

Portrait and landscape ready

Effortlessly mount the VESA-compatible ST04 in either portrait or landscape orientation, making it ideal for different types of content and applications.
Designed for eye comfort
Enjoy enhanced viewing comfort and clearer visuals with an anti-glare screen featuring a 25% haze value that eliminates reflections to minimize eye strain.

Truly immersive sound

The ST04’s powerful, two 12W speakers deliver captivating audio, bringing your content to life.

Always at the ready

With the easy-to-enable Wake on HDMI and Wake on LAN, the ST04 is always ready when you need it.

Sleek from every angle

The slim, uniform bezels on the ST04 ensure a seamless installation that blends into any environment.

Deliver your messages anywhere

Create, manage, and deliver engaging signage content across school with the powerful X-Sign content management platform.

Easy content creation

With X-Sign, you can remotely create content for diverse scenarios. Whether it's for announcements, school maps, menus, team scores, and more, X-Sign offers ready-made, editable templates.

Effortless scheduling

Use X-Sign’s advanced features to broadcast real-time or scheduled announcements to all your ST04 displays, individually or in customizable groups, ensuring timely and effective communication.

Your content, uninterrupted

With X-Sign, your content is never interrupted by message windows or system alerts, making for a seamless viewing experience.

Streamlined management
Manage devices remotely
With the BenQ Device Management Solution (DMS), IT admins can remotely manage device settings and power schedules, update firmware, view device analytics, install and block apps, and more on every ST04.

Seamless provisioning

Easily provision multiple new ST04 displays by scanning the barcode on the box or device to automatically bind them to DMS.

Firmware updates, always

Schedule firmware updates from DMS so your ST04 displays always have the latest features and security patches.

Made for easy sharing
Get everyone involved
Effortlessly share content on the ST04 with InstaShare 2, compatible with Google, Apple, and Microsoft devices. Enjoy seamless wireless screen sharing across laptops, tablets, and smartphones, and take control with the powerful Smart Controller function for an elevated interactive experience.

Keep lessons safe with AI

The built-in AI Guardian feature in InstaShare 2 automatically prevents participants from sharing inappropriate images or videos on the ST04.

Secure your displays
Block unauthorized remote control
Secure your signage with the IR sensor lock on the ST04, blocking unauthorized access from universal remotes.

Security at the hardware level

Dedicated Wi-Fi and USB covers provide an extra layer of hardware-level protection in common spaces for all your ST04 signage.

Built-in sustainability
Certified energy saving
The ST04 series is ENERGY STAR® 8.0 certified, helping you reduce emissions and save on energy costs.

Smaller footprint

We’ve reduced the display packaging size by up to 30% across ST04 models, boosting transport efficiency and lowering emissions.

Remote energy control

Effortlessly manage sleep modes, schedule remote power, and monitor real-time energy usage with DMS.