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2.0" Transparent OLED GOLDELOX Display

The uTOLED-20-G2 display module flaunts a very impressive 2.0" state of the art Passive Matrix Transparent OLED (PMTOLED) technology that is fully transparent and viewable from both the front and rear. This display module is powered with an embedded GOLDELOX graphics processor that delivers 'stand-alone' functionality to any project.

Powerful graphics, text, image, animation and countless more features are built inside the GOLDELOX chip. The module is designed to work out of the box and you are now ready to write your code in 4DGL (a high level 4D Graphics Language) using the 4DGL-Workshop4 IDE (editor, compiler and downloader). This will save weeks even months of development time on your next embedded graphics project.

4DGL is a graphics oriented language allowing the developer to write applications in a high level language, syntax similar to popular languages such as BASIC, C and Pascal. The module offers modest but comprehensive I/O features that can interface to serial, analogue, digital, buttons, joystick, sound generation and Dallas 1-wire devices.

Care should be taken when handling the uTOLED-20-G2 display module as the display flex is delicate and could be damaged with rough handling. Undue stress on the display flex can lead to horizontal/vertical black lines.

NOTE: This product is no longer available due to the manufacturer of the TOLED display glass discontinuing supply due to quality issues. 

  • Powerful Graphics
  • 65K True to Life Colours
  • Low-Cost Display Solution
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  • Low-cost OLED display graphics user interface solution.
  • 128 x 160 resolution, 65K true to life colours, PMTOLED screen.
  • 2.0" diagonal size, 39.79mm x 68.74mm. Active Area: 31.86mm x 39.74mm.
  • No back lighting with near 360° viewing angle (Transparent Display).
  • Easy 10 pin interface to any external device: VCC, TX, RX, GND, RESET, IO1, IO2, 3.3V.
  • Powered by the 4D-Labs GOLDELOX graphics processor highly optimised for 4DGL, the high level 4D Graphics Language.
  • 2 x GPIO ports supports:
    • Digital I/O
    • A/D converter with 8/10 bit resolution
    • Complex sound generation
    • Dedicated RTTTL tune engine
    • Multi-Switch Joystick
    • Dallas 1-Wire
  • 10K bytes of flash memory for user code storage and 510 bytes of RAM for user variables (255 x 16bit vars).
  • 1 x Asynchronous hardware serial port, TTL interface, with 300 baud to 600K baud.
  • On-board micro-SD memory card adaptor for storing of icons, images, animations, etc. Supports 64Mb to 2Gig micro
  • SD memory cards. A SPI compatible micro-SD card is required.
  • Comprehensive set of built in high level 4DGL graphics functions and algorithms that can draw lines, circles, text, and much more.
  • Display full colour images, animations, icons and video clips.
  • Supports all available Windows fonts and characters (imported as external fonts).
  • 4.0V to 5.5V range operation (single supply).
  • PCB dimensions: 37.5 x 24.0 x 11.0mm.
  • Weighing ~ 12g.
  • RoHS Compliant.

Information about the display module


Viewing Area: 31.9 x 39.7 mm
Module Width: 37.5 mm
Module Height: 80.4 mm
Module Depth: 10.8 mm
Module Weight: 13.00 g

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Introducing 4D Systems' All New Workshop 4 IDE

Workshop4 delivers a comprehensive interface enriched with features for optimal software development for any user.

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.

Workshop 4 includes 3 different environments compatible with GOLDELOX modules, for the user to choose based on application requirements or even user skill level


This environment enables the user to write 4DGL code in its natural form to program the display module


A visual programming experience that enables drag-and-drop type placement of objects to assist with 4DGL code generation and allows the user to visualize how the display will look while being developed.


This environment is also provided to transform the display module into a slave serial display module, allowing the user to control the display from any host microcontroller or device with a serial port.

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