4D Systems specialises in the design and manufacturing of intelligent display modules and graphics processors. It provides solutions for incorporating advanced graphical user interfaces (GUI) into various electronic devices and systems.

The company's products primrily focus on human-machine interface (HMI) technologies, enabling users to interact with devices through touchscreens, buttons, sliders, and other graphical elements. These display modules integrate both hardware and software components to create visually appealing and user-friendly interfaces.

Intelligent Display Modules: These are complete display solutions that combine a graphics processor, displays, and touchscreen interface in a compact package. These modules often have built-in features like audio playback, GPIO (General Purpose Input/Output) capabilities, and communication interfaces such as UART, I2C, and SPI.

Designer Software: 4D Systems provides a range of software tools to facilitate the development of graphical interfaces. Their Designer software allows users to design and create custom GUIs for their projects, offering features like drag-and-drop widgets, image editing, and animation capabilities.

Hardware Accessories: 4D Systems offers various accessories to complement their display modules, increasing cables, adapter boards, bezels, and display stands. These accessories help customers integrate the modules into their specific applications seemlessly.

Arduino-Compatible Displays: 4D Systems also produces displays compatible with Arduino, an open-source electronics platform. These displays enable users familiar with Arduino to easily add graphical capabilities to their projects.

4D Systems' products span across industries such as medical, devices, industrial automation, home automation, Internet of Things (IoT) applications, consumer electronics, and more.