Acer Aspire E531 :: Blank Screen On Start Up

I watched a movie on Thursday evening and closed the lid of my acer aspire E531 laptop. (Chosen shut down method) I wanted to resume working about 2 hours later and was greeted by only a grey screen. Machine powers up but then just the blank screen. After switching on, the fan starts for about 30 seconds and then stops and then the blank (grey like screen)
 
I've tried some solutions posted on internet ( remove battery and hold power button; press ctr alt del twice; press F8 on start up) Nothing worked. The remove battery solution ignited some response from the machine, i.e. grey screen seemed to turn white with feint blocks in background almost checkered blocks, but very very feint.