Abstract: A method to transfer a layer of harder thin film substrate onto a softer, flexible substrate. In particular, the present invention provides a method to deposit a layer of sapphire thin film on to a softer and flexible substrate e.g. quartz, fused silica, silicon, glass, toughened glass, PET, polymers, plastics, paper and fabrics. This combination provides the hardness of sapphire thin film to softer flexible substrates.

Abstract: A composition of AR layer that is aimed to match the refractive index of the underlying substrate e.g. glass, chemically strengthened glass, plastics etc., so as maximum light is transmitting through it. For a device with an sapphire film for anti-scratch protection, because sapphire has a different refractive index to that of the substrate, therefore existing AR layer will not function as well as it should; not only the transmitted light is reduced in quantity, its transmitted range will be changed such that imaging or display color is compromised. Therefore an integrated AR with sapphire film with the top most AR layer as Al2O3 which also acts as anti-scratching layer will eliminate this problem. This claim involves replacing one of the materials for AR layer is Al2O3 such that the top most AR layer as Al2O3 which also acts as anti-scratching layer.

Abstract: A method to transfer a layer of harder thin film substrate onto a softer, flexible substrate. In particular, the present invention provides a method to deposit a layer of sapphire thin film on to a softer and flexible substrate e.g. PET, polymers, plastics, paper and fabrics. This combination provides the hardness of sapphire thin film to softer flexible substrates.