Its definitely the backlight flickering because I can just about make out the screen ,ie like the brightness is turned to zero.
I can also get it to re-instate briefly by manually zero-ing the brightness and turning up slowly.
The flickering gets worse as the brightness goes up.
Just as a spot more information, the screen has taken longer to warm up in recent months, starts off very pink warming to white over 15 seconds or so.
Or at least it used to...
Is the inverter board a relatively easy fix?
I think I remember seeing it when i took the screen assembly apart. Long Story.
I've been under the bonnet a few times and am fairly competent.