Frame lamination technology for touch screens

Abstract

The invention discloses a frame lamination technology for touch screens. The frame lamination technology for touch screens comprises the steps of machining a TFT liquid crystal screen module (2), pasting a film on an OGS touch screen (1), and laminating the OGS touch screen (1) onto the TFT liquid crystal screen module (2). During the step of pasting the film on the OGS touch screen, the silk-screen printing process of a wire frame (3) and an indicating lamp position hole (5) is conducted at the same time. Meanwhile, an explosion-proof film (6) is pasted onto the back surface of the OGS touch screen (1) before the step of laminating the OGS touch screen (1) onto the TFT liquid crystal screen module (2). The explosion-proof film (6) and the TFT liquid crystal screen module (2) are adhered together via the foam rubber (7). Based on the above structure, the OGS touch screen and the TFT liquid crystal screen module are adhered together more firmly without any air bubbles, and the adhesion quality thereof is better. Meanwhile, one step is saved, so that the production efficiency is increased. At the same time, the cost is saved. The explosion-proof film is firstly broken through, so that the pressure of the external force is relieved. Therefore, the explosion is avoided.

Description

technical field [0001] The invention relates to the technical field of touch screen production, in particular to a touch screen frame sticking process. Background technique [0002] The production process of capacitive touch screen involves a key process, that is, the bonding process. The traditional touch screen bonding process includes the following steps: clean and dry the surface of the TP sensor and tempered glass panel, and then remove static electricity; paste the TP sensor and tempered glass panel with optical glue and send it to the central vacuum machine for defoaming; Take out the TP sensor and tempered glass panel from the central vacuum machine for mechanical positioning and bonding to form a capacitive touch screen module; select and cut PVC film and PET film; glue and dry PVC film and PET film; The PET film is bonded to the TP sensor and the tempered glass panel respectively to form a capacitive touch module wrapped in a micro-airbag; the module is sent to a ...

AI Technical Summary

Problems solved by technology

However, this bonding process is only suitable for the bonding between the touch screen and the casing, but not for the bonding between the TFT display module and the OGS touch screen; and the corona treatment is processed by using high frequency and high voltage. Corona discharge on the surface of the plastic produces low-temperature plasma, which causes free radical reactions on the surface of the plastic to cross-link the polymer, roughens the surface and increases its wettability to polar solvents. Therefore, these ions are formed by electric shock and Penetrate into the surface of the printed object and destroy its molecular structure, resulting in irreparable product

Images