Well, I've to end the challenge today because I've changed my phone and the sales person applied a non-anti Blue light screen protector for me. Well, my anti blue light protector was cracked at the top (not on the LCD screen), so out of good will, the sales person changed a new one for my new phone. He only have "normal" tempered glass protectors so he gave me that.

Anyway, well ... the results have been the same ... These anti bluelights screen protector helps a little in blocking out the blue light. I feel my eyes are less dry and I slept slightly better/easier.