1. Laminated means there are two layers of glass with a layer of plastic sheet inbetween. If cracked, it won't shatter, so it is "safety" glass.
2. The other type of safety glass is "hardened" (tempered) glass, which instead of breaking into sharp shards will shatter into tiny pieces which are not sharp.
3. The third type of glass is plain glass, which hasn't been used in autos aince before about 45 years.
De-laminated means the bond has broken down between the glass and plastic, letting moisture into the glass.
However, ZONELEX is a trademark of
Central Glass for their partially-tempered glass. Typically this means the center of the glass is tempered so when your head hits it shatters. However if something hits the edges it can break into sharp pieces. Partially-tempered windscreens were used in Japan from 1970-1986 after which only laminated glass was allowed.
So it's a mystery what is wrong with it, seeing as it is not laminated glass.