US Patent 11789300 Flexible multi-layered cover lens stacks for foldable displays

Embodiments described and discussed herein generally relate to flexible or foldable display devices, and more specifically to flexible cover lens assemblies. In one or more embodiments, a flexible cover lens assembly contains a glass layer, an impact absorption layer disposed on the glass layer, a moisture barrier layer disposed on the impact absorption layer, a substrate disposed on the moisture barrier layer, a wet hardcoat layer having a nano-indentation hardness in a range from about 0.4 GPa to about 1.5 GPa and disposed on the substrate, an adhesion promotion layer disposed on the wet hardcoat layer, an anti-reflectance layer disposed on the adhesion promotion layer, a dry hardcoat layer having a nano-indentation hardness in a range from about 1 GPa to about 5 GPa and disposed on the anti-reflectance layer, and an anti-fingerprint coating layer disposed on the dry hardcoat layer.