Manufacturing method of 3D (three-dimensional) glass plate

Abstract

The invention discloses a manufacturing method of a 3D (three-dimensional) glass plate. The manufacturing method includes the steps of S1, providing a large glass plate; S2, coating the large glass plate with an acid-resisting protective layer pattern; S3, etching a surface of the large glass plate with an acidic etchant, and etching the surface of the large glass plate to obtain a plurality of grooves; S4, performing washing with water; S5, removing the acid-resisting protective layer pattern from the surface of the large glass plate with an alkaline reagent; S6, performing washing with water; S7, splitting the large glass plate into a plurality of small glass plates, and providing the middle of each small glass plate with a recess; S8, using a CNC engraving and milling machine to engrave and mill a sidewall of the recess in one side of each small glass plate to form a curved surface, enabling smooth connection between the bottom of the recess and other parts of this surface of the small glass plate, using the CNC engraving and milling machine to engrave and mill the other side of the small glass plate to provide the edge of this surface of the small glass plate with an arc surface reversely curved; S9, using a brush-polishing machine to brush-polish the small glass plates. The manufacturing method of the 3D glass plate provided by the invention enables improvement of productivity and yield.

Description

Technical field [0001] The invention relates to the technical field of mobile phone accessories, in particular to a method for manufacturing a 3D glass plate used for a mobile phone glass cover or a mobile phone glass protective film. Background technique [0002] Curved display technology has become increasingly mature and has begun to be applied in the display field. For example, Apple, Samsung and LG’s mobile phone displays use curved displays, which greatly increase the freedom of display design. It is the trend of personalized development of display devices such as mobile phones in the future. For example, the Apple Iphone6 ​​mobile phone adopts the arc edge technology with four edges bent downward. The existing mobile phone glass cover and glass protective film are mainly 2D and 2.5D structure technologies. 2D structure refers to a surface structure with a flat upper and lower surface, and a 2.5D structure refers to a surface structure with an upper curved surface and a low...

AI Technical Summary

Problems solved by technology

[0003] At present, 3D glass cover plates or glass protective films have been tested and produced by manufacturers. The production methods include mechanical processing and hot pressing. Manufacturing 3D glass cover plates or glass protective films by mechanical processing is low in production efficiency and high in cost. Realize mass production, lack of market competitiveness, 3D glass cover plate or glass protective film manufactured by hot pressing method, glass heating and cooling will easily lead to cracking and breaking of glass, resulting in optical distortion and poor bending accuracy, the product is qualified The rate is low, and there is no mature and economical method for manufacturing 3D glass cover or glass protective film

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