[frostschutz]

What could maybe be done, is a software hack that disables the touch screen entirely while you read a book using the pageflip buttons exclusively. Or, if the touches happen in very specific coordinates only, a hack that filters touch inputs for these specific coordinates.

But in terms of hardware, you need a replacement. I doubt this can be fixed by opening the device, the front is not reachable anyway unless you disconnect all cables, all of which are glued/waterproofed/messy. And even then the frontlight, touch layer, display are more or less laminated into one unit.

The see-through issue wouldn't bother me, since I don't read in the dark and my brightness setting is quite low. That said when you open the device there is some black tape that is probably specifically meant to deal with this issue. But I don't know if opening could help with this at all...