Siemens Display - Defect

The defect I have, I assume it's from the display: (the input works, it's just hard to see what you are doing)

see attachment picture 1

The problem I have is the supply tells me Siemens doesn't supply this model anymore. The display is combined with the controller. It's a Siemens Ergomatic, on the circuit board the model is G34904-D1000.

see attachment picture 2

On the touch screen board G321D / Rev.2 – X5RIAC:

see attachment picture 3

The Machine is: Blohm – Planomat 608 (I have the electric schematic)

What I'm looking for is an alternative Display, or a schematic where I could make a connector for an external touch screen, Or how and what I need to measure, to find out which leads are what.

Thanks in advance for any info you can spare me.