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A kind of packaging structure of backlight module and LED

A technology of backlight module and fixed structure, which is applied to semiconductor devices, optics, light guides and other directions of light-emitting elements, can solve problems such as rework or scrapping of light bars that affect the manufacturing cost of liquid crystal displays, and failure to replace broken LEDs in time and affect efficiency.

Active Publication Date: 2014-10-29
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] In the LED backlight module, the LED components as the light-emitting unit are generally welded on the circuit board (PCB) by SMT (surface mount technology) to form a lightbar (light bar). If one of the LEDs is broken or the chromaticity is NG (not good, not good), the entire lightbar needs to be returned to the PCB factory for rework or scrap, and the broken LEDs cannot be replaced in time, affecting efficiency, and the rework or scrap and assembly of the light bar directly affect the manufacturing cost of the LCD display

Method used

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  • A kind of packaging structure of backlight module and LED
  • A kind of packaging structure of backlight module and LED
  • A kind of packaging structure of backlight module and LED

Examples

Experimental program
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Embodiment 1

[0027] Such as figure 1 Shown is a preferred embodiment 1 of the present invention, the packaging structure of the upper LED100 of the light bar includes: a fixing bracket 210 arranged on the PCB200, and a fixing part 110 arranged on the LED100; on the PCB200. Such as figure 2 As shown, a protruding clip 111 is formed on the fixing portion 110 of the two opposite sides of the LED 100, as image 3 The fixed bracket 210 shown includes two opposite upright frames 211 and a connecting portion 213 connecting the two upright frames 211 , a slot for engaging the clip bar 111 is formed between the two upright frames 211 217. In this way, when the LED100 needs to be packaged on the PCB200, it is only necessary to directly insert the clip strips 111 on both sides of the LED100 into the fixing bracket 210 on the PCB200, the installation process is relatively simple, and no complicated welding process is required.

[0028] Such as image 3 As shown, the upright frame 211 on the fixe...

Embodiment 2

[0034] Such as Figure 5 and Image 6As shown, the difference from the first embodiment is that the fixing portion 120 provided on the LED 100 is formed with a slot 127 , while the PCB 200 is formed with a strip 221 . With respect to embodiment 1 (as figure 1 As shown), in the first embodiment, setting the clamping strip 111 on the LED100 can improve the strength of the docking structure, and setting the clamping strip 221 on the PCB200 (such as Image 6 Shown) its strength is not as high as that of Example One.

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PUM

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Abstract

A backlight module and an LED packaging structure. The backlight module comprises a PCB (200) and an LED (100) arranged on the PCB (200). The PCB (200) is provided thereon with fixing structures for fixing the LED (100), and the LED (100) is provided thereon with butting structures used for butting with the fixing structures. Each of the fixing structures is a fixing bracket (210) arranged on the PCB (200), a clamping groove (217) is formed in the fixing bracket, and the inner wall of the clamping groove (217) is provided with a convex part (212). Each of the butting structures is a fixing part (110) arranged on the two side surfaces of the light-exiting surface of the LED (100), and a clamping strip (111) is formed on the fixing part. The clamping strips (111) on the two side surfaces of the LED (100) are fixed in a mated manner to the clamping grooves (217) respectively. Because the fixing structures and the butting structures are respectively arranged on the PCB and the LED, the LED can be removably installed on the PCB directly without SMT welding, thereby facilitating the replacement of the LED.

Description

technical field [0001] The invention relates to the field of liquid crystal display, and more specifically, relates to a backlight module and an LED packaging structure. Background technique [0002] The backlight module is one of the key components of the LCD panel. The function is to supply sufficient brightness and evenly distributed light source so that it can display images normally. Backlight modules usually use LEDs as light sources, and some use cold-cathode tubes as light sources. However, LEDs are widely used in existing liquid crystal displays due to their low energy consumption and long life. [0003] In the LED backlight module, the LED components as the light-emitting unit are generally welded on the circuit board (PCB) by SMT (surface mount technology) to form a lightbar (light bar). If one of the LEDs is broken or the chromaticity is NG (not good, not good), the entire lightbar needs to be returned to the PCB factory for rework or scrap, and the broken LEDs...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S8/00F21V19/00G02F1/13357H01L23/32F21Y101/02
CPCH05K1/00G02B6/009G02B6/0068G02B6/0083F21Y2101/02G02B6/0073F21V19/0025F21Y2115/10G02F1/133603G02F1/133608H05K3/325H05K3/4015H05K2201/10106H05K2201/10386
Inventor 李全
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD