3.9” pixxiLCD Series Intelligent Display Module with PIXXI-44 Graphics Controller
The pixxiLCD-39 is part of the new and revolutionary pixxiLCD series of embedded graphics displays designed and manufactured by 4D Systems. Developed with low total cost of ownership in mind, this 3.9” landscape colour TFT-LCD compact Intelligent Display module offers an array of functionality and options for any designer, integrator or user wishing to add a full color HMI into an application.
The 3.9″ landscape display is IPS with wide viewing angles.
The pixxiLCD-39 is powered by the configurable PIXXI-44 graphics processor, allowing various functionalities such as touch detection, microSD or serial flash memory storage, GPIO, and ADC, along with multiple millisecond resolution timers, and UART and I2C communication.
The pixxiLCD-39 embedded graphics displays comes in two variants:
- Non-touch – pixxiLCD-39P4
- Capacitive-touch – pixxiLCD-39P4-CTP
The pixxiLCD embedded graphics displays are 100% compatible with the Workshop4 IDE, which provides users with a wealth of options for programming and controlling their system.
The pixxiLCD embedded graphics displays feature a standard 15-way, 0.5mm pitch ZIF socket interface which carries the UART, I/O, I2C, power, and reset signals to/from the display.
Typical Applications include:
- General purpose low-cost embedded graphics.
- Elevator control systems
- Point of sale terminals.
- Electronic gauges and metres.
- Test and measurement and general-purpose instrumentation.
- Industrial control and Robotics.
- Automotive system displays.
- GPS/Sat-Nav systems.
- Medical instruments and applications.
- Heart rate and Blood pressure monitors.
- Smart Home Automation display panels.
- Consumer appliance devices.
- Security and Access control panels.
- Air conditioner control panels.
- Lighting control panels.
- Vending machine panels.
- Power meter panels.
- Gaming equipment.
- And much more.
Information about the Display Module
- Powerful 3.9” Intelligent LCD-TFT IPS display module powered by PIXXI-44
- 480 x 128 Resolution, RGB 65K TFT Screen
- Capacitive Touch
- 32KB of Flash memory for user application code.
- 30KB of SRAM for user variables.
- Selectable 16MB Serial Flash memory chip for multimedia storage, data files, fonts, or for holding extra code functions (to expand the code storage of the processor)
- Selectable on-board push type micro-SD memory card connector for multimedia storage, data files, fonts and data logging purposes.
- 2 General Purpose I/O pins for user interfacing, 2 of which are configurable as analog inputs or as I2C.
- Master I2C port (maximum supported speed is fast I2C) for user application devices.
- UART port, Asynchronous hardware serial, with 300 to 2187500 baud, for interfacing to a Host or Slave device. The Serial port is also used for device programming.
- DOS compatible file access (FAT16 format) using uSD, as well as low-level access to card memory.
- Display full-colour images, animations, icons, and video clips.
- Supports all available Windows fonts.
- Free comprehensive Software Development Tools (Workshop4) provides drag-and-drop style and coding environments for rapid application development, upgradable to Workshop4 PRO for additional features.
- Standard 15-way, 0.5mm pitch ZIF socket interface which carries the UART, I/O, I2C, power, and reset signals to/from the display.
- Single 5.0 Volt Supply (4.0V to 5.5V range).
- Display Dimensions:
- pixxiLCD-39P4: 118.80 x 40.64 x 6.60 mm
- pixxiLCD-39P4-CTP: 118.80 x 40.64 x 8.00 mm
- Weight:
- pixxiLCD-39P4: ~41 grams
- pixxiLCD-25P4-CTP: ~50 grams
- RoHS, REACH and CE compliant.
- PCB is UL 94V-0 Flammability Rated
The pixxiLCD-39P4-CTP Comes with:
- pixxiLCD-39P4-CTP Smart Display Module
- gen4-IB Interface Board
- 15-to-30 way FFC Cable
SPECIFICATIONS
Diagonal Display Size INCHES | 3.9 |
---|---|
Resolution | 480 x 128 |
Brightness | 475 cd/m2 |
Backlight LEDs | 2×5 |
Touch | Capacitive Touch |
Controller | PIXXI-44 |
Operating Ambient Temperature | -20°C to +70°C |
Storage Temperature | -30°C to +80°C |
Connector | 15 way ZIF Socket |
Display Viewing Area (mm) | 95.04 x 25.34 |
Module Dimensions (mm) | 118.80 x 40.64 x 8.00 |
RoHS? | Yes |
Country of origin | Australia |
CCCN / tarif code | 85312000 |
ECCN export control code | EAR99 |
TARIC Code | 8531209590 |
AHECC Code | 85312000 |
Package Dimensions L x W x H (mm) | 150 x 95 x 41 |
Product Weight (g) | 50 |
Weight with Packaging (g) | 97 |
REACH | Yes |
CE Mark | Yes |
Supply Voltage | 5.0 VDC |
Supply Current | 265 mA |
Frame Rate | 18 fps |
colours | RGB 65K |
Processor Capability | 1100K Pixels / second |
SD Card Slot | Yes – Also includes 16MB On-Board Serial Flash for Multimedia Storage and Data Logging |
Flash | 32KB for User Code / 16MB for Multimedia and Data Logging |
RAM | 30KB SRAM |
I2C | 1 x Master |
GPIO | 2 x GPIO |
SPI | No |
Codeless Programming | Yes |
IDE | 4D Workshop4 IDE |
Serial Speed | 300 to 2187500 baud |
Serial Interfaces | 1 |
Viewing Angle | Standard Viewing Angle |

SIZE & WEIGHT
Viewing Area: 95.04 x 25.34 mm
Module Width: 118.80 mm
Module Height: 40.64 mm
Module Depth:8.00 mm
Module Weight: 50 g

WORKSHOP4 IDE
Workshop4 is a comprehensive software IDE for Microsoft Windows that provides an integrated software development platform for all of the 4D family of processors and modules. The IDE combines the Editor, Compiler, Linker and Downloader to develop complete 4DGL application code.
All user application code is developed within the Workshop4 IDE.
DEVELOPMENT ENVIRONMENTS THAT SUITS ANY APPLICATION & USER LEVEL
Workshop4 includes four development environments for the user to choose based on application requirements or even user skill level.


WORKSHOP4 PRO
Make complex widget design, simple.
Smart Widgets Editor is a powerful utility which enables the generation of Smart Widgets.
GENIE MAGIC
Genie Magic is an extension to ViSi-Genie, which is available in Workshop4 PRO. Genie Magic allows the User to add 4DGL code to various points in the ViSi-Genie backend code, which allows Users to take full advantage of the power of 4DGL, while retaining the speed and convenience of ViSi-Genie and its defined communication protocol.
Genie Magic allows you to enter 4DGL code in the form of Events, Code and Objects, along with various touch related additions too, giving you to the power to achieve advanced GUI’s in ViSi-Genie without having to write the full code yourself.
Genie Magic is fully supported by the genieArduino and geniePi libraries, making communication with an Arduino or Raspberry Pi host even more powerful.
When using Genie Magic in combination with the Smart Widget Editor, it is possible to use the Smart Widgets Editor tool and Smart Widgets to create other graphical user interface elements such as:

DOWNLOADS
Compatibility:
Workshop4 is a Windows-only product. It is compatible with Windows 8 through to Windows 11.
Note some older OS such as ME, Vista, XP and 7 have not been tested for some time and are not supported by Microsoft anymore; however, they may still work.
Legacy support updates for the older OS may not be possible, depending on what issues are found. For best results, run a current Windows OS.
It is possible to run Workshop4 under a VM on Linux or Mac. However, it is up to the User to set this up.
Documentation
PIXXI Processor Documentation
Related Documents
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- 3.9″, 480×128 pixel, Intelligent Display Module with embedded PIXXI-44 processor.
- IPS Display with wide viewing angles.
- Capacitive Touch.
- Suitable for fast and easy integration of a full colour HMI into any application or product.
- Starter Kits available for first time users.
- See product description below for more details.
We are delighted to offer volume discounts to qualified customers and organisations.
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