Hi, first of all, could you do a quick test? Start the notebook as you normally would, listen for the windows startup sound, this will be the first indication it is loading the OS. One you've determined it is at least to the log on screen, hold your screen up to the light, or preferably, take a bright flashlight and shine it fairly close to the screen. If you see the log on window, enter your desktop just to be sure. If it is functioning, it may be a bad starter board or backlight issue. If you have no desktop or log on screen, it could be something else. Could be simple as it's in sleep mode, or you turned down your brightness accidentally.
i can not see nothin on my sony vaio notebook screen. can anyone help?