Well, after studying the pictures I can now tell you a few things about the display that I know from my work experience. These things may or may not help you but I hope they do.
First, looking at the full view of the back of the unit, the single black and two pink wires at the bottom right are the high-voltage wires for the backlight CCF tubes (there are two of these). The part contained in the panel recess above those wires is the HVDC supply for the backlight tubes. On the top of that--the opposite end from the HV wires--there is a bundle of grey wires leading back to the PCB. These are the backlight control lines; they allow digital logic to control the backlight: turn it on, turn it off, etc. as well as supply low-voltage for the boost converter, probably 12 VDC in this case. The ribbon of alternating white and black wires is the data bus for the display; it might even be the same interface as the very similar screen we use in one line of our products. Gimme a day or two to look it up. And lastly, that Kapton-coated ribbon cable emerging from the far left side of the display near the PCB is the four-wire connection to the touch panel, which is an X-Y resistive type--each pair carries a resistance which indicates where on the corresponding axis the screen was touched. That connects to the PCB through that black connector labeled P1. I can't tell what U1 is because the numbers are too unresolved to read, but based on the number of pins, it's possibly a microcontroller of some sort.
