Unfortunately it's not a real graphic display. The segments can only display a few different texts, through clever arrangement/segmentation.
That seems unusual, judging from the number of connections the FPC has. Perhaps it is a true graphic display but the COB micocontroller is programmed with the images they want it to display? Or have you confirmed that with e.g. a scope on those data lines? Especially for something so cost-optimised, it seems odd the display would have so many connections to it.
On the other hand, even if the segments were in fixed patterns, looking at this diagram I wonder if you could hack your own display by sandwiching it between the glass layers of an existing LCD and using those electrodes to drive it...
Yea, initially i thought it was a "regular" display that could be hacked. But if you take a close look under a magnifying glass, you can see that it has only fixed text. Since it displays different words in the same position, the letters are cut into segments where the different ones overlap, and these need to be controlled separately.
If you want i can send it your way, just send me a PM and tell me where to send it to
Greetings,
Chris
ETA: It display three different textx: "PREMIUMQUALITÄT", "FAIRER PREIS" and "JETZT PROBIEREN!" It displays one string black-on-white, then white-on-black, then repeats that with the next ones, and once it has done all three, it blinks the display fully white, then fully black, and then starts over again. So you have these three strings superimposed onto each other, which naturally causes a lot of segmentation in the letters.