Machining technology for electronic screen

Abstract

The invention provides a processing technology for an electronic screen, which includes the following steps: (1) forming a sapphire blank; (2) grinding: using double-sided grinding equipment to perform double-sided grinding on the sapphire blank; (3) plasma etching: grinding the sapphire blank Place the semi-finished sapphire electronic screen flat in the etching chamber of the plasma etching machine, close the chamber cover, remove the damage on the surface of the semi-finished sapphire electronic screen, and remove the surface stress; (4) Double-sided polishing: use double-sided polishing equipment to clean the electronic Chemical mechanical polishing of the semi-finished screen; (5) Chamfering: use a chamfering machine to chamfer the edge of the semi-finished electronic screen after double-sided polishing; (6) Coating: use a vacuum coating machine to coat the semi-finished electronic screen after chamfering , to obtain the finished electronic screen. The invention can greatly improve the strength of the electronic screen and meet the strength requirement of the electronic screen.

Description

technical field [0001] The invention relates to the technical field of electronic products, in particular to a processing technology of an electronic screen. Background technique [0002] Due to its high hardness (hardness of 9 is second only to diamonds), wear resistance, and high transmittance, sapphire has been gradually used in mobile phone camera protection covers, mobile phone fingerprint sensor buttons and mobile phone touch screen covers. The sapphire material is a single crystal with crystal orientation, and different crystal orientations have different physical and chemical properties. The crystal direction of sapphire includes C direction, A direction and R direction, etc. The plane perpendicular to the crystal direction is called C plane, A plane and R plane correspondingly. [0003] At present, the working surfaces of sapphire components used in the electronic product industry mainly use the A and C surfaces of the crystal. The theoretical bending strength of ...

AI Technical Summary

Problems solved by technology

The surface damage layer, the edge damage layer and the edge sand mouth are the starting points of crack failure of sapphire products under the action of external force. The surface damage layer, edge damage layer and edge sand mouth are not processed after cornering, so the strength of the sapphire screen cover plate for mobile phone produced by the current traditional sapphire processing technology is far lower than the theoretical strength of sapphire material, which limits the strength of sapphire. Large-scale popularization and application of products in consumer electronics such as mobile phones