An insulating layer is provided over {HEAD ~ the first substrate} and comprises {TAIL ~ a plurality} of notches 
An insulating layer is provided over { HEAD ~ the first substrate } and comprises { TAIL ~ a plurality } of notches
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH