3D cover plate integrated with full screen fingerprint identification and preparation method thereof

Abstract

The invention provides a 3D cover plate integrated with full screen fingerprint identification and a preparation method thereof, and relates to the technical field of touch screens. The 3D cover plate integrated with full screen fingerprint identification comprises a 3D multi-curved surface glass cover plate and a decorative thin film; the front surface of the decorative thin film is adhered to the back surface of the 3D multi-curved surface glass cover plate; a first nano-silver wire film layer and a second nano-silver wire film layer are printed in a visible area of the back surface of the decorative thin film; the first nano-silver wire film layer is coated with an insulating layer; the insulating layer is positioned between the first nano-silver wire film layer and the second nano-silver wire film layer; the outer side of the second nano-silver wire film layer is coated with a melanised protective layer; an ink layer is printed in the area, besides the visible area, of the back surface of the decorative thin film; the ink layer is etched with a conductive metal film layer; the conductive metal film layer is butted with the first nano-silver wire film layer and the second nano-silver wire film layer. The 3D cover plate provided by the invention integrates a plurality of functions, namely decorating, preventing explosion and full screen fingerprint identification.

Description

Technical field [0001] The invention relates to the technical field of touch screens, in particular to a 3D cover plate integrating full-screen fingerprint recognition and a preparation method thereof. Background technique [0002] With the development of science and technology, the glass cover in the current touch screen has developed from the original 2D and 2.5D to the present multi-curved 3D glass cover such as two-sided curved surface and four-sided curved surface. The 3D multi-curved glass cover is limited by the curved back surface and the non-planar surface cannot be processed with ink printing for appearance decoration like the original 2D and 2.5D back planes, and the 3D multi-curved glass cover has the ability to resist impact due to the curved edge design It is easy to break and explode, and the flying fragments can easily hurt the safety of artificial people. [0003] At present, mobile phone security methods range from pattern unlocking, password unlocking, and face ...

AI Technical Summary

Problems solved by technology

The 3D multi-curved glass cover plate cannot be printed with ink for appearance decoration processing like the original 2D and 2.5D back planes due to the limitation of the curved and non-planar back, and the 3D multi-curved glass cover plate has a curved edge design, so the impact resistance It is easy to break and burst, and the splash of fragments can easily hurt people and cause personal safety

[0008] Looking further at the development of smartphones, fingerprint recognition on the back also has more difficulties in adapting to mobile phones / tablets plus jackets and compatible with wireless charging solutions

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