Question

why could Philip not be seen​

Answer 1

There have been several reports recently that Queen Elizabeth II and Prince Philip no longer live together at Buckingham Palace, which has left many wondering why that is. The couple has been married for more than 70 years but a pretty significant change for the pair has indeed affected their living arrangments.

Answer 2

Answer:

There are a few things that can cause this. In general it is the mainboard that tells the power board to turn on the backlight for the panel. ... If so then you know it is your backlight (bad power board, bad backlight array). If you do not see anything then there could be an issue with the main board or the T-con board.16-Nov-2018