if you are going to start work lcd repair you must know basic info for all parts
---------
1.
GLASS
2.OCA (Optically Clear Adhesive)
2.1-
OCA structure
3-
POLARIZER
3.1-
POLARIZER structure
3.2-
POLARIZER FUNCTION
4-
IPS DISPLAY
ips display have two parts
1-lcd,screen,display
2-touch,digitizer
theise two parts bonded with special adhesive and technology
which is not leaked at the moment.
5-
LED-BACKLIT
6-FINAL