Most likely the backlight went out on the display. Try to shine a light on the screen to see if you can see the display that way. If you can faintly see the display, it isnt being backlit.
Hi! I am having the same issue. However, I tried to shine a light on the screen and I can`t see anything. I assume this isn`t the backlight issue. I would be very greatful for any suggestions on how I can identify what is wrong with my computer. Thanks