New 14.1" WXGA/WXGA+/WUXGA LCD CCFL Backlight with Wire Harness and Inverter Board Combo for HP Laptop/Notebook HP Pavilion dv4-1215ef 1215tu 1215tx 1216tu 1216tx 1217la 1217tx 1218tx 1219tx 1220br 1220tx 1220us 1221tx 1222la 1222nr 1223la 1223tx 1224la 1224tx 1225dx 1225la 1225tx 1226tx 1227la 1227tx 1227us 1228ca 1228la 1228tx 1229la 1229tx 1230br 1230tx 1231tx 1232tx 1233tx 1234tx 1235br 1235ee 1235ei 1235tx 1236tx 1237tx 1238tx 1239tx 1240tx 1241br 1241tx 1242tx 1243tx 1244tx 1245br 1245t

My HP Pavillion dv4 screen was dark but able to see the display if I shine the a light on it at a certain angle. I did my research online and based on what I read I thought it must be either the backlight or the inverter or both. I did not have the time for trials and tribulation so I assumed that both went bad.I also bought a new screen, just in case. What I did not know at the time I bought the screen was that it comes with the backlight already installed. I thought that the backlight is a little hard to replace (very fragile and hidden on the screen top under layers of foil and tape). If you don't want the hassle, you might be better off buying a new screen and just the inverter. If you have time the backlight and inverter are cheaper alternative (paid $125 for screen).Total time to replace about two hours. Having a friend is handy. Few small Phillips screwdrivers and step by step instructions (HP has a serious problem with displays, they have these instructions available!!). I got my laptop working like a champ again!Buying from Amazon was great. When I was shopping for parts I was worried that parts may not fit. But as it turns out LCD parts have details for which laptop models the parts fit, and they did! Was not the first time I buy from Amazon and LCD parts and definitely will not be the last one.