Backlight module and display device

Abstract

The invention provides a backlight module and a display device. The backlight module comprises a light guide plate, an optical film material arranged on one side of the light guide plate and frame sealing glue arranged on the periphery of the light guide plate, wherein a first positioning part is arranged at the edge of the optical film material, the frame sealing glue comprises a covering part and a second positioning part, the covering part is located on one side, away from the light guide plate, of the optical film material, the edge of the optical film material is covered with the covering part, and the second positioning part is arranged on one face, towards the optical film material, of the covering part and matched with the first positioning part so as to positioning the optical film material. According to the backlight module, the positioning structures for positioning the optical film material are directly manufactured on the frame sealing glue, the width of a frame of the backlight module can be effectively reduced, and the frame of a displayed product can be narrow.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a backlight module and a display device. Background technique [0002] Due to the advantages of low operating voltage, low power consumption, flexible display methods, and low radiation, Liquid Crystal Displays (LCDs) are widely used in various fields, such as computers, mobile phones, televisions, and measurement displays. The LCD includes a liquid crystal display panel, and the liquid crystal display panel includes a thin film transistor substrate, a color filter substrate, and a layer of liquid crystal molecules interposed between the two substrates. In addition, the LCD also includes a backlight module, which is used to provide a light source for the liquid crystal display panel, so that the LCD can display images. [0003] Such as figure 1 As shown, a traditional backlight module includes a back cover (Back Cover) 10, a frame (Bezel) 20, a sealant (Mold Frame) 30, an opti...

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Problems solved by technology

[0004] The first way, such as figure 1 As shown, the bending structure is processed on the back plate 10. The bent part of the back plate 10 is located between the sealant 30 and the light guide plate 50, and forms a positioning protrusion 10a (sheet guide). The edge is designed with a positioning hole 40a corresponding to the positioning protrusion 10a, which can facilitate the positioning and assembly of the optical film material 40 and the back plate 10, and can play a role in fixing the optical film material 40; but this structure Due to the processing of the bending structure on the backplane 10, it will be difficult to narrow the frame of the backlight module, so that it is also difficult to narrow the frame of the display product, and the space for narrowing the frame (frame slimming) of the backlight module is limited;

[0005] The second method is to make a separate circular positioning column on the back plate, and the edge of the optical film is designed with a U-shaped positioning gap that can be snapped into the circular positioning column; this structure is compared with the first method. With the back bending structure, although the frame can be narrowed to a certain extent, it is still necessary to reserve a certain space on the back panel to make the positioning column, that is, the positioning column will still occupy a certain space in the frame part, and the circular positioning column alone It is made on the back plate, and the production cost is high. In addition, the positioning of the circular positioning post and the U-shaped positioning notch also often causes poor movement of the optical film material.

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