Backlight module and liquid crystal display device

Abstract

The invention discloses a backlight module and a liquid crystal display device. The backlight module comprises a back frame, light bars and a mounting support, and the mounting support is used for fixing the light bars and is fixed onto the back frame in a detachable connection manner. The light bars in the backlight module are fixed onto the mounting support, then the mounting support is mounted on a back plate in the detachable connection manner, and accordingly can be detached, if one or a plurality of light bars in the backlight module is damaged, the mounting support can be detached from the back of the liquid crystal display device, the light bars on the mounting support are directly repaired, components including a liquid crystal panel, a front frame, a rubber frame, a first optical diaphragm, a second optical diaphragm, a light guide plate, a reflector and the like do not need to be sequentially detached, efficiency of repairing the liquid crystal display device is improved to a great extent, further repair cost of the liquid crystal display device is lowered, and reuse efficiency of the liquid crystal display device is enhanced.

Description

technical field [0001] The invention relates to the field of liquid crystal display, more specifically, to a backlight module and a liquid crystal display device. Background technique [0002] The backlight module is one of the key components of the liquid crystal display device, which is mainly used to provide sufficient brightness and uniformly distributed light source so that the liquid crystal panel can display images normally. [0003] The light source of the backlight module is provided by the light bar installed in the module. Taking the LED light bar as an example, there are multiple LEDs on the LED light bar. The performance and usage of the LED are affected by various factors. If the backlight module One or more of the LEDs in use fails to emit light due to failure, which will affect the display performance of the liquid crystal display device or even make the liquid crystal display device unable to display. Such as figure 1 Shown is an existing liquid crystal di...

AI Technical Summary

Problems solved by technology

[0003] The light source of the backlight module is provided by the light bar installed in the module. Taking the LED light bar as an example, there are multiple LEDs on the LED light bar. The performance and usage of the LED are affected by various factors. If the backlight module One or more of the LEDs in use fails to emit light, which will affect the display performance of the liquid crystal display device or even make the liquid crystal display device unable to display

like figure 1 Shown is an existing liquid crystal display module. If one or more LEDs in the LED light bar 110 in the backlight module of the backlight module is damaged, it needs to be disassembled and repaired sequentially, as shown in the figure. As shown, when the LED light bar 110 is to be maintained, it is necessary to remove the components such as the liquid crystal panel 200, the front frame 300, the plastic frame 400, the first optical film 510, the second optical film 520, the light guide plate 530, and the reflector 540 in sequence. , the process is very complicated; moreover, fragile components such as liquid crystal panel 200 and optical membranes may be easily damaged during disassembly and assembly, and positioning errors may also be caused during repeated disassembly and assembly, such as light guide plate 530 and LED light bar 110 If there is a positioning error during the disassembly process, it will affect the display quality of the repaired display device.

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