Backlight module and liquid crystal display device

Abstract

The invention provides a backlight module and a liquid crystal display device. The backlight module comprises a back plate and a front frame. The back plate comprises a vertical plate and a bottom plate arranged on the surface of the vertical plate in the horizontal direction. A sliding fastener is arranged on the outer surface of the vertical plate in an outward protruding mode. The front frame comprises a side wall and a support arm arranged on the side wall surface in the horizontal direction. A sliding way parallel to the length direction of the front frame is arranged on the inner side of the side wall. The sliding fastener can slide in the sliding way in the length direction, and when the sliding fastener slides, the sliding fastener is limited in the sliding way so as to be prevented from disengaging from the direction perpendicular to the length direction of the sliding way. The liquid crystal display device comprises a panel and the backlight module. Screw-free fixation is achieved through a structure of the sliding way and the sliding fastener, the width distance occupied by the back plate at the fixation end can be reduced, the allowed distance in the width direction of an existing panel resource is met, it is not required to increase side width, and the side narrowing of the liquid crystal display device is achieved easily.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a backlight module and a liquid crystal display device. Background technique [0002] The important components of the liquid crystal display device are the panel and the backlight module. The backlight module mainly includes a front frame, a back plate, a light guide plate, a plastic frame, and a diaphragm. [0003] When designing an ultra-thin liquid crystal display device, the structure of the liquid crystal display device is designed as follows: figure 1 As shown, the liquid crystal display device includes a front frame 101, a back plate 102, a plastic frame 103, a light guide plate 104, a panel 105, a front frame lower arm 1011, a front frame upper arm 1012, and a screw flange 1021. figure 1 It can be seen from the figure that the back plate 102 and the front frame 101 are fixed by locking screws on the back, and the specific fixing method is as follows: threaded holes and ...

AI Technical Summary

Problems solved by technology

[0007] Therefore, in the related art, the front frame and the back panel are fixed by locking the screws on the back. Since the screws will occupy space in the width direction, within the limited resources of the panel, in order to ensure that the front frame support arm can completely cover the support For each component under the arm, the fixing method of the prior art needs to increase the side width distance of the front frame support arm, which is not conducive to the narrow side design of the liquid crystal display device

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