Back stacking type ultrathin glass thinning method

Abstract

The invention discloses a method for thinning back-stacked ultrathin glass. The method comprises the following steps: S1, providing two pieces of glass to be thinned; s2, attaching an isolating membrane to the non-thinned surface of the glass; s3, the periphery of the glass attached with the isolating membrane is subjected to edge sealing with UV glue, and UV photocuring is carried out; s4, the faces, attached with the isolating membranes, of the two pieces of glass are attached together in a back-to-back mode and put into an etching basket to be thinned; and S5, after completion, taking out the two pieces of glass, cleaning, tearing off the UV glue and the isolating membrane, and then cleaning. According to the invention, the non-thinned surface of the glass is covered and protected by the isolating membrane, and the edge is sealed by the UV adhesive, so that the side wall of the glass is protected, and the protecting effect is prevented from being influenced by the flanging of the isolating membrane. The size of the isolating membrane is slightly smaller than that of the glass, so that the attaching effect is improved, and edge warping during attaching is avoided. And during attachment, water is used as a lubricant, so that the position of the isolating membrane can be conveniently and quickly adjusted to ensure that the isolating membrane is attached in place, and the protection effect of the isolating membrane is ensured.

Description

technical field [0001] The invention relates to the field of screen processing, in particular to a method for thinning ultra-thin glass with stacked backs. Background technique [0002] In recent years, more and more smartphones have begun to use glass with curved edges as the screen cover. At present, 3D curved glass has become an important choice for many mobile phone manufacturers to pursue product differentiation. Under the leadership of South Korea's Samsung, domestic vivo, Both Xiaomi and Huawei have launched their own flagship curved screen mobile phones, which are also very stunning in appearance and are favored by consumers. [0003] Curved screens require screen glass to bend, and the thicker the glass, the less likely it is to bend. Therefore, glass bending directly leads to thinner glass requirements. [0004] At present, domestic and foreign mainstream mobile phone manufacturers require the thickness of curved screen glass to be 0.03-0.05mm. The traditional gla...

AI Technical Summary

Problems solved by technology

[0004] At present, domestic and foreign mainstream mobile phone manufacturers require the thickness of curved screen glass to be 0.03-0.05mm. The traditional glass thinning method can no longer meet the glass thinning requirement of 0.03-0.05mm, and the fragments in the thinning process cannot be solved.

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