Display backlight partially not working

Hi there,

I was lent this computer for repair. Works OK, but the lower right hand corner of the display isn't working properly

Block Image

. I suspect backlight malfunction, but even if the diagnosis is easy, the repair may not be.

Has anyone tried to take apart the display assembly?

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

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 1
crwdns2934285:0crwdne2934285:0