Laminated and ion-exchanged strengthened glass laminates

A strengthened laminated glass structure, comprising:

• a core glass layer having a first coefficient of thermal expansion (CTE);
• a first clad glass layer laminated to a first surface of the core glass layer;
• and
• a second clad glass layer laminated to a second surface of the core glass layer,
• wherein each of the first clad glass layer and the second clad glass layer comprises an ion exchangeable glass having a second CTE that is lower than the first CTE of the core glass layer;
• wherein an ion-exchanged region of each of the first clad glass layer and the second clad glass layer is under a compressive stress that is enhanced relative to a compressive stress of a non-ion-exchanged region of the respective first clad glass layer and second clad glass layer;
• wherein the enhanced compressive stress of the ion-exchanged region varies continuously with increasing depth of layer (DOL) from an outer surface of the respective first clad glass layer or second clad glass layer throughout a portion of each of the first and second clad glass layers;
• and
• wherein the enhanced compressive stress inflects from decreasing to increasing with increasing DOL in a portion of the ion-exchanged region.

A strengthened laminated glass structure comprising:

• a core glass layer having a first coefficient of thermal expansion (CTE);
• a first clad glass layer laminated to a first surface of the core glass layer;
• and
• a second clad glass layer laminated to a second surface of the core glass layer;
• wherein each of the first clad glass layer and the second clad glass layer comprises an ion exchangeable glass having a second CTE that is lower than the first CTE of the core glass layer;
• wherein an ion-exchanged region of each of the first clad glass layer and the second clad glass layer is under a compressive stress that is enhanced relative to a compressive stress of a non-ion-exchanged region of the respective first clad glass layer and second clad glass layer;
• and
• wherein the enhanced compressive stress of the ion-exchanged region varies continuously with increasing depth of layer (DOL) from an outer surface of the respective first clad glass layer and second clad glass layer throughout each of the first and second clad glass layers.