
Explore the range
4Discovery Series Display Modules
High-Res IPS with Touch & Proximity
The 4Discovery Series features 3.5” (480×320) and 5.0” (800×480) IPS displays, offering wide viewing angles and vibrant colours for superior visual clarity. Equipped with resistive and capacitive touch panels, they provide smooth, responsive interaction, ideal for smart home and automation interfaces. A built-in proximity sensor enhances user experience, enabling touchless activation or feedback.
These displays combine crisp visuals, intuitive touch, and innovative features, making them perfect for applications requiring high-quality graphics and seamless user interaction.
Sleek Wall-Mountable Design
The 4Discovery Series features a compact, wall-mountable form factor designed to blend seamlessly into modern smart home and building environments. Its slim profile and integrated mounting frame allow easy installation, making it perfect for control panels, automation interfaces, and more.
The streamlined design ensures a professional finish, whether installed on walls or panels, offering a clean and sophisticated solution for space-conscious residential, commercial, and industrial applications.
Versatile Connectivity Options
The 4Discovery Series offers exceptional connectivity with built-in WiFi, Bluetooth, and RS485 interfaces, ensuring seamless integration into diverse systems. Custom interface boards are available upon request for added flexibility and to support specific application needs.
These options make the displays adaptable to smart homes, building automation, and industrial projects, enabling reliable communication with sensors, controllers, and other devices. Whether for wired or wireless applications, the 4Discovery Series provides robust and versatile connection solutions tailored to your requirements.
DIABLO-16 – Graphics Powerhouse
This Series is powered by the DIABLO-16 Processor, among the most powerful embedded graphics processors, offering exceptional power, FLASH memory, RAM, and advanced features. It’s a custom 4DGL graphics controller for OLED and LCDs with built-in graphics, text, image, and animation capabilities.
Powered by the EVE (Extensible Virtual Engine), it efficiently runs 4DGL programs. It supports interfaces like SPI, I²C, and serial, providing features such as PWM, Quadrature, and a PWM audio output for WAV files and sound generation.
The 4Discovery Series features 3.5” (480×320) and 5.0” (800×480) IPS displays, offering wide viewing angles and vibrant colours for superior visual clarity. Equipped with resistive and capacitive touch panels, they provide smooth, responsive interaction, ideal for smart home and automation interfaces. A built-in proximity sensor enhances user experience, enabling touchless activation or feedback.
These displays combine crisp visuals, intuitive touch, and innovative features, making them perfect for applications requiring high-quality graphics and seamless user interaction.
The 4Discovery Series features a compact, wall-mountable form factor designed to blend seamlessly into modern smart home and building environments. Its slim profile and integrated mounting frame allow easy installation, making it perfect for control panels, automation interfaces, and more.
The streamlined design ensures a professional finish, whether installed on walls or panels, offering a clean and sophisticated solution for space-conscious residential, commercial, and industrial applications.
The 4Discovery Series offers exceptional connectivity with built-in WiFi, Bluetooth, and RS485 interfaces, ensuring seamless integration into diverse systems. Custom interface boards are available upon request for added flexibility and to support specific application needs.
These options make the displays adaptable to smart homes, building automation, and industrial projects, enabling reliable communication with sensors, controllers, and other devices. Whether for wired or wireless applications, the 4Discovery Series provides robust and versatile connection solutions tailored to your requirements.
This Series is powered by the DIABLO-16 Processor, among the most powerful embedded graphics processors, offering exceptional power, FLASH memory, RAM, and advanced features. It’s a custom 4DGL graphics controller for OLED and LCDs with built-in graphics, text, image, and animation capabilities.
Powered by the EVE (Extensible Virtual Engine), it efficiently runs 4DGL programs. It supports interfaces like SPI, I²C, and serial, providing features such as PWM, Quadrature, and a PWM audio output for WAV files and sound generation.
Available Models
4Discovery Accessories

The 4Discovery Starter Kit includes everything necessary for developments with any 4Discovery Series display. It is highly recommended for first-time users and can be added to any display model.
The starter kit includes a 4Discovery RS485 Programmer and microSD-4GB industrial card.
4Discovery Starter Kit

The 4Discovery RS-485 Programmer is an essential hardware tool for programming, customising, and testing the 4Discovery module. The 4Discovery RS485 Programmer is used to program a new Firmware/PmmC, Display Driver and for transferring compiled Workshop4 Applications.
It can even serve as an interface for communicating serial data to the PC. The 4D Programmer also supplies power to the 4Discovery, allowing it to be programmed on the bench or in the field.
4Discovery RS485 Programmer

The 4D-UPA (Universal Programmer Adaptor) provides a reliable interface for programming, updating, and configuring 4D Systems display modules and processors.
Featuring a 30-way, 0.5mm pitch FPC connector, it ensures high-speed, stable communication with Workshop4 IDE, making it ideal for development, prototyping, and volume production environments.
4D-UPA

Designed for critical embedded environments, this 4GB Industrial Grade micro SD Card offers exceptional reliability, advanced firmware protection, and SPI compatibility. Ideal for 4D Systems' intelligent displays, it prevents Read Disturb errors and ensures data integrity under high read/write demands.
With industrial temperature tolerance and Phison-certified performance, it’s the recommended storage solution for graphics, logging, and robust applications.
uSD-4GB-Industrial
Frequently Asked Questions
Find quick answers about our display modules, embedded integration, customization capabilities, and system compatibility.
How do I choose the right display module for my project?
Start by identifying the demands of your product environment: required screen size, touch capability, operating conditions and UI complexity. Our consistent form-factor families allow you to select a module that fits your constraints today and upgrade performance later without redesigning your enclosure or PCB. Our documentation hub provides comparison tables to assist selection.
What is the difference between a smart display and a host-driven display?
Smart displays include an onboard processor that handles graphics, widgets, UI logic and drawing commands internally. This reduces load on your host MCU, simplifies code and often shortens development time dramatically. Host-driven modules require the host MCU to manage everything, which may be appropriate for minimal UIs but introduces more integration work.
Can I upgrade processors without changing my enclosure or PCB?
Yes. Our architecture is deliberately designed around footprint consistency. Most display families maintain identical mechanical and electrical footprints across multiple processor types, enabling generation-to-generation performance improvements without mechanical redesign.
Do you offer non-touch and touch options?
Yes. Many display families provide variants for non-touch, resistive-touch and capacitive-touch configurations. Capacitive-touch variants are recommended for modern, responsive UI experiences.













