I tried to replace my screen

I tried to replace my screen the wires came out of the white connector for the Led 1 while attempting to unplug..what does this led 1 do and it sayse336504.Led1.94v its behind the window icon when the screen is apart

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0

crwdns2944067:02crwdne2944067:0:

please insert a picture

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934285:0crwdne2934285:0