This project contains information regarding the Noritake itron GU20X8-301 3-color graphic VFD module.
The module has a matrix of 20x8 "pixel", each of which can be lit with 1 or both of 2 base colors red and blue. The display uses the VFD (vacuum fluorescent display) technology, which is obsolete for most applications today. You can find and purchase this module from China online shops, the price will vary, approx. 10 EUR.
Here you'll find information regarding the device itself and some hints for operating with Arduino.