A backlight module

Abstract

The invention discloses a backlight module, which comprises a light guide plate, a double-sided adhesive tape, and a light emitting assembly. A first direction is a thickness direction of the light guide plate, a second direction is perpendicular to a light incident side of the light guide plate, and a third direction is perpendicular to the first direction and perpendicular to the second direction. A first avoidance groove is a groove recessed in the second side surface towards the third direction, the depth of the first avoidance groove in the first direction is the thickness of the light guide plate, and the first avoidance groove penetrates the light guide plate in the first direction. A first sunk groove is a groove recessed in the back surface along the first direction towards the front surface, a bottom surface recessed in the second side surface towards the third direction shares an edge with a bottom surface recessed in the back surface towards the first direction, and an included angle between the two bottom surfaces is greater than 0 degree and less than 180 degrees. The double-sided adhesive tape has an extending end, the extending end is embedded in the first sunk groove via the first avoidance groove, so that the extending end is covered in the first groove. The backlight module enhances the binding force of the light guide plate and a flexible circuit board in the light emitting assembly by forming the grooves.

Description

technical field [0001] The present application relates to the field of liquid crystal display, in particular to a backlight module. Background technique [0002] With the gradual popularization of electronic products, the requirements for the production process of liquid crystal display are becoming more and more stringent. PCB, printed circuit board) circuit, backlight, structural parts and other components assembled together. [0003] Since the liquid crystal display panel itself does not have luminous properties, a light source must be added to the liquid crystal display panel to achieve a clear display effect. The backlight module is an optical component that can provide a back light source. This optical component includes a light guide plate , the flexible circuit board bonded to the light guide plate by double-sided tape and the light-emitting components as light sources such as light-emitting diodes (LED, Light Emitting Diode), the light guide plate converts the line...

AI Technical Summary

Problems solved by technology

[0004] When the double-sided tape with the light-emitting component is attached to the light guide plate, it is bonded to the light guide plate by means of plane attachment, and it only has a bonding effect with the light guide plate in one direction, resulting in the edge of the light-emitting component and the light guide plate If the attachment is not firm, it is easy to fall off, resulting in light leakage

Images