OGS touch screen lamination processing manufacturing method

Abstract

An OGS touch screen lamination processing manufacturing method is provided. The method includes: laminating large plate glass, coating adjacent opposite surfaces of the large plate glass with a curing adhesive, cutting the laminated large plate glass into small laminated glass sheets, subjecting the small laminated glass sheets to profiled processing, subjected the small laminated glass sheets after the profiled processing to physical polishing, performing chemical etching, and separating the small laminated glass sheets after edge enhancement processing. According to the method, the whole part is cut after lamination, a connecting film layer is formed on each surface of the large plate glass under the action of the curing adhesive, and therefore each large plate glass is good in overall connectivity, and the stress on a contact point during cutting is expanded to stress on the whole part, thus largely reducing circumstances of edge corner collapse or partial crumbling. Polarity edge enhancement is performed by a physical enhancement manner and a chemical enhancement manner, so that the homogeneity of products under lamination states is very high.

Description

technical field [0001] The invention belongs to the technical field of touch screen manufacturing, and in particular relates to an OGS touch screen laminate processing and manufacturing method. Background technique [0002] The operating principle of the projected capacitive touch panel is mainly to use the capacitive induction formed by the contact between the ITO (indium tin oxide) transparent electrode on the touch panel and the human finger or conductive object. It is the coordinate information that can be interpreted by the operating system. [0003] Traditional capacitive touch screen products are composed of Sensor glass and cover glass, in which the Sensor glass plays the role of touch sensing, and the cover glass plays the role of protection. OGS (One Glass Solution) is a technology that directly implements the Sensor of capacitive touch screen products into the cover glass (or window glass), making the original two-piece glass structure of the Sensor glass and the...

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Problems solved by technology

[0004] The existing OGS touch screens are prepared using large glass plates as raw materials. The preparation steps are as follows: figure 1 As shown, the material is easy to obtain and the preparation process is relatively simple in the production of this method; but in the preparation process, there are still the following problems: 1) the surface strengthening stress of ordinary glass is generally 600Mpa, and the problem of chipping and edge chipping is very easy to occur during cutting; in the special-shaped processing of cutting into small pieces of glass, the excess part is removed by contacting the edge of the glass with a high-speed rotating grinding rod. The problem of surface strengthening stress High-frequency vibration can also easily cause edge chipping or even cracking; 2) The etching solution in the processing of small pieces of glass is a mixture of hydrofluoric acid and water, and the glass on the edge of the OGS that is not protected by glue reacts, forming Fluorosilicic acid; after the concentration of fluosilicic acid in the immersion tank increases beyond the critical point of solubility, white crystals of fluosilicic acid will form on the edge of the glass, which will affect the reaction in the area where the crystals are located, resulting in inconsistent glass etching degrees in different areas, affecting the final strength of the product, and Hydrofluoric acid is toxic; 3) Based on the characteristics and process limitations of the above-mentioned glass, only single-piece processing can be used in production and processing, and the efficiency is low

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