Gluing method by using UV adhesive

Abstract

The invention discloses a gluing method by using an ultraviolet (UV) adhesive, which comprises the following steps of: arranging a UV irradiation area on the edge of each workpiece; coating the UV adhesive between the workpieces, and extruding the workpieces to make the UV adhesive diffused to the periphery; and when the UV adhesive is diffused to the edge area, switching on a UV light source corresponding to the area, and performing UV irradiation on the area until the UV adhesive is diffused to each edge of each workpiece and a gap between the workpieces is filled with the UV adhesive. In the gluing method by using the UV adhesive, the characteristic that the viscosity of UV resin can be changed under ultraviolet irradiation is utilized, the UV light source is arranged in the edge area of each workpiece, and the flow rate of the UV adhesive in the edge area of each workpiece is changed by the UV light source, so that the diffusion speeds of the UV adhesive in various directions are balanced, the UV adhesive is uniformly distributed between the workpieces, the gap between the workpieces is filled with the UV adhesive, and the UV adhesive cannot be overflowed. When products such as a liquid crystal touch screen and the like are produced by the method, the production period is short, the method is easy to operate, product quality is high, and mass production is easy to realize.

Description

technical field [0001] The invention relates to a method for laminating UV glue, in particular to a method for laminating UV glue when producing products such as liquid crystal touch screens. Background technique [0002] Screens such as touch screens of tablet computers or LCD touch screens of mobile phones are made of multi-layer transparent media bonded together by resin. In the non-vacuum environment during production, when the resin expands and flows in the plane direction, due to the path The speed is different, and the reaching edge is also different. Such as figure 1 As shown, taking the production of a mobile phone touch screen as an example, the CG (surface glass) cover plate 1 and the TP (touch screen) 2 should be bonded together through resin 3 . During production, resin 3 is first coated on the central part between the CG cover plate 1 and TP 2, and then the CG cover plate 1 and TP 2 are squeezed from both sides, so that the resin 3 spreads around. It can be ...

AI Technical Summary

Problems solved by technology

[0005] However, the rapid prototyping method requires secondary processing for overflow glue, especially the high requirements on the external surface in the optical field, which makes the production cost and production cycle too large

Although the high-quality molding method has improved in the boundary, it still has problems such as long molding cycle and complicated operation, which is not suitable for industrial production

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