Backlight module and liquid crystal display device

A technology of backlight module and back frame, which is applied in lighting devices, fixed lighting devices, components of lighting devices, etc., can solve problems affecting the display performance of liquid crystal display devices, complex processes, positioning errors, etc., and improve the efficiency of repeated use , maintenance cost reduction, the effect of reducing the process

Active Publication Date: 2012-07-04
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 sho

Method used

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  • Backlight module and liquid crystal display device
  • Backlight module and liquid crystal display device
  • Backlight module and liquid crystal display device

Examples

Experimental program
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Example Embodiment

[0027] Example one

[0028] Such as figure 2 and image 3 Shown as a preferred embodiment of the present invention, as shown in the figure, the back frame 600 of the backlight module of the liquid crystal display device is provided with three side walls 630 at the edge of the back frame 600, and one edge of the back frame 600 is not provided with On the side wall, an opening is left here for installing the mounting bracket 120. The light bar 110 is fixed on the mounting bracket 120 by screws or bonding to provide a light source for the LCD device. The mounting bracket 120 is mounted to the back frame 600 by screws Of the opening. Such as Figure 4 As shown, the bottom surface of the mounting bracket 120 is provided with a bottom blind hole 1220, the bottom blind hole 1220 is a threaded hole, of course, it can also be a pin hole or other; correspondingly, such as image 3 As shown, the bottom plate through hole 610 and the bottom blind hole 1220 are opened at the edge of the bott...

Example Embodiment

[0031] Example two

[0032] The difference from the first embodiment is that Figure 8 As shown, the fixing section of the end screw 900 used at both ends of the mounting bracket has the same diameter as the shaft section. The fixing section is provided with threads. Of course, the shaft section can also be provided with threads. In this way, ordinary conventional Screws do not require special customization, saving production costs. However, if there is no thread on the shaft section, the strength of the screw can be improved and the friction between the screw and the blind hole on the mounting bracket can be avoided.

[0033] Of course, in the present invention, it is not necessary to provide threads on the fixing section, as long as the fixing section and the side wall through holes on the side wall of the back frame achieve the effect of locking and fixing.

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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...

Claims

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Application Information

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IPC IPC(8): F21S8/00F21V19/00G02F1/13357
CPCG02B6/009G02B6/0068G02F1/133615F21V19/00G02F1/1309F21S8/00G02F2203/68G02F1/133602G02B6/0073
Inventor 俞刚
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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