Hi
Why does a TV fail in vibration?
The cute little parts on the pc board(s) don't care much about vibration. You can put a driver chip into 100 G's RMS random for 12 hours and (by it's self) it could care less abut what's going on. The SMD stuff isn't going to die in vibration. It could *crack* from board flexing, but that's a different sort of issue. Leaded stuff, unless it's big and floppy ... still not likely to be an issue.
What does fail:
1) The wires between this and that.
2) The wires to the connectors
3) The connections in the LCD panel its self. (same thing, just burried)
4) Mounting brackets for sub-assemblies
5) The mounts for the LCD panel.
6) Big heavy floppy parts (aluminum electrolytics) on the boards.
7) Giant boards that go into resonance and crack off of their mounts.
Ceramic capacitors that crack from board flexing (resistors sometimes, but a lot less often)
Some of that you can fix with RTV gobbed here and there. You still are unlikely to have a reliable device.
Bob