HP HDX 16 1160-US Display :: Screen Went All Of A Sudden Dark

I have a HP HDX 16 1160-US and a while back, my screen went all of a sudden dark but if I put my face very close to the screen, I could see the desktop icons and start button. I looked around on the internet for possible reasons that this happened. One of the solutions was to change the lcd inverter, therefore I changed it. Once i turned the laptop on with the new lcd inverter, the laptop displayed everything alright, but after I turned it off and on, the screen went dark again. I searched some more on the internet and found another solutuon and that was to change the backlight. To me it made sense to change it because thats where the whole lighting comes from, so I changed that too, but unfortunately that didn't work either. I didn't know what else I should do after this point so I called HP to see if I can give it to them to repair it but they don't have parts anymore for my laptop.