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LED backlight module and liquid crystal display device

A technology for backlight modules and LED light strips, which is applied to lighting devices, fixed lighting devices, components of lighting devices, etc., can solve the problems of reducing the service life of LEDs, heat generation, and difficulty in dissipating heat, so as to improve heat dissipation performance, increase Effect of heat dissipation area

Active Publication Date: 2012-07-11
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, high-brightness LEDs have certain heating problems, especially in the increasingly compact backlight modules, where the space is narrow and the heat is not easy to dissipate, which leads to the continuous rise of the temperature of the backlight module, and the high temperature of the LED will affect the entire backlight module Optical taste and display effect, while reducing the service life of LED

Method used

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  • LED backlight module and liquid crystal display device
  • LED backlight module and liquid crystal display device
  • LED backlight module and liquid crystal display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as Figure 1~3 As shown, a liquid crystal display device includes an LED backlight module, the LED backlight module includes a light source fixing device 2 for fixing LED32 light bars, a light guide plate 4 opposite to the LED32 light bar, and a light source fixing device 2 of the backplane 1. The bottom surface of the light source fixing device 2 in contact with the backboard 1 is provided with cooling fins 21 , and the shape of the fins can be sheet-like or column-like or other shapes. Correspondingly, a fin insertion hole 11 is opened in the accommodation groove 12 of the backplane 1 corresponding to the heat dissipation fin 21, and the heat dissipation fin 21 passes through the fin insertion hole 11 on the backplane 1 and is exposed to the LED backlight module. external. The light source fixing device can adopt aluminum extrusion and other metal materials with good heat dissipation performance, which can effectively fix the LED light bar while taking into acc...

Embodiment 2

[0028] Such as Figure 4~6 As shown, a liquid crystal display device includes an LED backlight module, the LED backlight module includes a light source fixing device 2 for fixing LED32 light bars, a light guide plate 4 opposite to the LED32 light bar, and a light source fixing device 2 of the backplane 1. The bottom surface of the light source fixing device 2 in contact with the backboard 1 is provided with cooling fins 21 , and the shape of the fins may be sheet-like or column-like or other shapes. Correspondingly, a fin insertion hole 11 is opened in the accommodation groove 12 of the backplane 1 corresponding to the heat dissipation fin 21, and the heat dissipation fin 21 passes through the fin insertion hole 11 on the backplane 1 and is exposed to the LED backlight module. external. Of course, it is also within the protection scope of the present invention that the heat dissipation fins 21 are not exposed.

[0029] The LED32 light bar includes LED32, and a PCB31 connect...

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Abstract

The invention discloses an LED backlight module and a liquid crystal display device. The LED backlight module comprises a light source fixing device for fixing an LED light bar, and a plurality of radiating fins are additionally arranged on the light source fixing device, so that radiating area is increased, and the radiating performance of LEDs is improved.

Description

technical field [0001] The invention relates to the display field, and more specifically, relates to an LED backlight module and a liquid crystal display device. Background technique [0002] Such as figure 1 As shown, LED has the characteristics of high efficiency, energy saving, and long service life. With the reduction of LED cost, LED has been widely used as a backlight source in the field of liquid crystal display. However, high-brightness LEDs have certain heating problems, especially in the increasingly compact backlight modules, where the space is narrow and the heat is not easy to dissipate, which leads to the continuous rise of the temperature of the backlight module, and the high temperature of the LED will affect the entire backlight module The optical taste and display effect will reduce the service life of LED at the same time. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an LED backlight modul...

Claims

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Application Information

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IPC IPC(8): F21S8/00F21V29/00F21V19/00G02F1/13357F21Y101/02
CPCG02F2001/133628G02F1/133615F21V17/10F21V19/00F21V29/00F21S8/00G02B6/0085G02B6/009G02F1/133628
Inventor 余亚军
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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