Device and method for processing one glass solution (OGS) touch screens

Abstract

The invention relates to a device and a method for processing OGS touch screens. Lasers emitted by a green ultra-short pulse laser are subjected to coaxial beam expansion through a beam expander, light beams after being expanded through the beam expander pass through a 45-degree transflective mirror, and the light path direction is changed; one path of light beams is focused on the lower surface of a work-piece through a first 3D dynamic scanning galvanometer and a first focusing mirror, and the other path of the light beams penetrates through the 45-degree transflective mirror, a second 3D dynamic scanning galvanometer and a second focusing mirror to be focused on the lower surface of the work-piece; a first coaxial charge coupled device (CCD) and a second CCD position the work-piece accurately, capture a positioning mark on the work-piece and calculate a compensation value; and the 3D dynamic scanning galvanometers lift the focus automatically during processing and the work-piece is processed from bottom to top. The two light paths perform optical focusing on the green ultra-short pulse lasers which penetrate through the work-piece to be focused on the lower surface of the work-piece, and energy of the laser is applied optimally and efficiently, and the efficiency is improved.

Description

technical field [0001] The invention relates to a device and a method for processing an OGS touch screen, belonging to the technical field of laser microprocessing. Background technique [0002] The benefits of OGS (One Glass Solution, that is, integrated touch) have three points: 1) save the cost of a layer of glass and reduce the cost of a bonding; 2) reduce weight; 3) increase light transmittance. OGS can better meet the needs of ultra-thin smart terminals and improve the display effect. It is an inevitable choice for high-end brand terminals. [0003] OGS has some technical difficulties in the process of coating, etching, CNC cutting, and secondary strengthening on strengthened glass. The cutting and forming of OGS glass panels is one of the difficulties. [0004] OGS touch screen glass is tempered and coated and then cut and formed. The main processing difficulties: after tempering, the glass is harder than glass, and it is difficult to split and split, and it is easy ...

AI Technical Summary

Problems solved by technology

[0005] With the continuous growth of the touch display industry such as mobile phones and tablet computers, the traditional OGS processing method can no longer meet the demand. Therefore, a glass processing method and device that breaks through the tradition is particularly needed. As an advanced processing method in modern industry, laser is more and more popular. The attention of various industries, the feasibility and practicability of glass cutting through lasers have been increasingly verified, but there is no equipment and process for OGS touch screen processing with high efficiency, high quality and high precision.

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