Thanks for the comments. Just wondering will frequent turning on and off the LCD increase the risk of developing dead pixel and likewise will less usage of the LCD minimise the risk.
It will be nice for those who really knows LCD technology to share some tips on the proper usage of the LCD display to reduce the risk of dead pixel since many (at least me) still have no idea at all and moreover LCD is very expansive or rather impossible to replace.
Just imagine that you spent more than 2k to 5k on a DSLR and take really good care of it but one day found out that there is one or more dead pixel on the LCD. They are expansive and yet so fragile.