| 摘要 |
A diffractive coating layer, (202) situated at the interface between a substrate layer (200) and an overcoat layer (208) of the device, is divided into a set of small slightly (a) separated regions (204). This allows a direct bond of the overcoat layer to the substrate layer within the separation areas (206), which direct bond provides a more secure bond than that provided by a bond of the coating layer to the substrate and overcoat layers. <IMAGE> |
