Touch screen laminating method and glue coating device thereof

Abstract

The invention discloses a touch screen laminating method and a glue coating device thereof. The method comprises the following steps: (1) coating glue to the whole surface of a cover plate by using a coating knife, the glue being planar; (2) irradiating the cover plate coated with the glue by using a UV lamp, activating the glue, and curing the glue until the glue is in a jelly shape and is not easy to flow; and (3) in a vacuum environment, attaching the display screen to the cover plate, wherein no bubble is achieved. The glue on the surface of the cover plate is planar, the thickness of the glue is uniform, the laminating speed of the cover plate and the display screen is high, and bubbles are thoroughly removed; and after the glue on the cover plate is in the jelly shape, the cover plate is attached to the display screen, so that the glue is poor in flowability and does not overflow, and the product quality is high.

Description

technical field [0001] The invention relates to the field of liquid crystal screen production, in particular to a touch screen bonding method and a glue coating device thereof. Background technique [0002] The touch screen is an inductive liquid crystal display device that can receive input signals such as contacts. When the graphic buttons on the screen are touched, the tactile feedback system on the screen can drive various linking devices according to pre-programmed programs, which can be used to replace mechanical devices. The button panel of the style is adopted, and the vivid audio-visual effect is produced by the liquid crystal display screen. The touch screen includes a display screen and a cover plate, and the display screen and the cover plate need to be bonded together. Such as figure 1 As shown, the traditional production process is to disperse and coat the glue 10' on the cover plate 1' in the form of dispensing glue. Since the glue 10' is in the form of disp...

AI Technical Summary

Problems solved by technology

like figure 1 As shown, the traditional production process is to disperse and coat the glue 10' on the cover plate 1' in the form of dispensing glue. Since the glue 10' is in the form of dispensing glue, the thickness of the glue 10' is uneven.

In the bonding process of the display screen 2' and the cover plate 1', it is necessary to use the pressing action between the display screen 2' and the cover plate 1' to squeeze and spread the glue 10' dispersed in the form of glue, Make the glue fill the surface of the two, so as to discharge the air bubbles, and then irradiate the whole body with UV light. The whole bonding time is longer, and there may be problems of incomplete removal of air bubbles or uneven extrusion force. The thickness of the glue on the surface is uneven. If the glue 10' is evenly coated on the cover 1' first, and then the display 2' is covered, there will be glue overflow

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