I am able to log on to my aspire but I see a blank screen.

Bernadette Martins if it is a blank screen it may not load your OS. If it is a black screen it may be your screen itself. I suggest you start with connecting an external monitor. Let us know what that shows you. If that is normal, you are most likely having an issues with your LCD and may have to replace the screen. It is also possible that this is a backlight issue. In an darkened room and with the computer turning on, shine a flashlight at an angle against the screen. See if you can make out the background etc,. with that.

If an external monitor also does not show anything, then the issue could be your motherboard (bad GPU, bad BIOS, bad HDD, bad cable, etc) for that we need to rule out the first part of this answer.