Backlight module and adhesive tape applying apparatus and adhesive tape applying method

Abstract

The invention discloses a backlight module. The module comprises a light guide plate, a reflective sheet and an optical membrane set which are respectively arranged on the lower surface and the upper surface of the light guide plate. The module further comprises a light source assembly arranged on one end of a light-incident side of the light guide plate, a glue frame, and shading glue attached to the outer side wall of the glue frame and the bottom surface of the reflective sheet.The invention further discloses an adhesive tape applying apparatus and an adhesive tape applying method for the backlight module. Due to the fact that the shading glue is attached to the outer side wall of the glue frame and the bottom surface of the reflective sheet, light leakage between the two is avoided so that optical taste of the backlight module is increased. When the shading glue is used for attaching, a boss is clamped on the inner wall of the glue frame and close to a carrying table of the reflective sheet. After the glue frame is extruded on the reflective sheet, the shading glue is attached to the outer side wall of the glue frame through motion of an adhesive tape attaching block. Therefore, attaching efficiency of the shading glue is effectively improved.

Description

Technical field [0001] The present invention relates to the field of display technology, in particular to a backlight module and its tape bonding device and tape bonding method. Background technique [0002] At present, as the display component of electronic equipment, liquid crystal display devices have been widely used in various electronic products. The borders of these electronic devices are getting narrower and narrower; and the backlight module is an important part of the liquid crystal display device, and the frame is also It is bound to become narrower and narrower, but when the frame becomes narrower, there is a risk of edge light leakage in the backlight. [0003] In general, the backlight module has a plastic frame, a reflective sheet, a light guide plate, an optical film set, a light source, and a light-shielding tape (such as a word glue). The light source is fixed on the light entrance side of the light guide plate by double-sided adhesive. The sheet group is fixed o...

AI Technical Summary

Problems solved by technology

At this time, if the backlight frame is too narrow, the light will easily leak from the double-sided adhesive tape and the light-shielding tape where the reflective sheet and the plastic frame are attached, resulting in poor taste and experience of the module.

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