LED (Light Emitting Diode) lamp strip and backlight module employing same

A technology of LED light strips and backlight modules, which is applied in the field of backlight modules, can solve the problems of high temperature of backlight modules, affect the quality of backlight, and poor heat dissipation effect, and achieve the effects of short heat dissipation path, guaranteed backlight quality, and simple process

Inactive Publication Date: 2013-01-30
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat dissipation path is long, and due to the limitation of the PCB board process, the heat dissipation effect is poor, and it is easy to cause the temperature of the backlight module to be too high, thereby affecting the quality of the backlight

Method used

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  • LED (Light Emitting Diode) lamp strip and backlight module employing same
  • LED (Light Emitting Diode) lamp strip and backlight module employing same
  • LED (Light Emitting Diode) lamp strip and backlight module employing same

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Embodiment Construction

[0026] In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings.

[0027] see Figure 1 to Figure 3 , the present invention provides an LED light bar 20, comprising: a heat dissipation strip 2, a PCB board 4 disposed on the heat dissipation strip 2, an LED chip 6 disposed on the heat dissipation strip 2 and electrically connected to the PCB board 4, and an LED chip 6 disposed on the LED strip 2. The thermal interface material layer 8 between the chip 6 and the heat dissipation strip 2, the LED chip 6 of the present invention is directly in contact with the heat dissipation strip 2, and the heat emitted by the LED chip 6 is directly transferred to the heat dissipation strip 2 by the thermal interface material layer 8, and then the heat dissipation The strip 2 performs heat exchange with the outside to realize ...

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Abstract

The invention provides an LED (Light Emitting Diode) lamp strip and a backlight module employing the same, wherein the LED lamp strip comprises a heat-radiating strip, a PCB (Printed Circuit Board) arranged on the heat-radiating strip, LED chips electrically connected with the PCB and arranged on the heat-radiating strip, and thermal interface material layers arranged between the LED chips and the heat-radiating strip. According to the LED lamp strip and the backlight module employing the same provided by the invention, by arranging the LED chips on the heat-radiating strip with good heat conduction effect, the process of heat transfer through the PCB with poorer heat radiation effect required in the prior art is avoided. The LED lamp strip and the backlight module employing the same has the advantages of simple process, shorter overall heat radiation path, realization of favourable heat radiation effect, and guarantee of backlight quality.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to an LED light bar and a backlight module using the LED light bar. Background technique [0002] A liquid crystal display (LCD, Liquid Crystal Display) has many advantages such as a thin body, power saving, and no radiation, and has been widely used. Most of the liquid crystal display devices currently on the market are backlight liquid crystal displays, which include a liquid crystal panel and a backlight module. The working principle of the LCD panel is to place liquid crystal molecules between two parallel glasses. There are many small vertical and horizontal wires between the two glasses. The direction of the liquid crystal molecules is controlled by electrifying or not, and the light from the backlight module is refracted out to produce picture. Since the liquid crystal panel itself does not emit light, the light source provided by the backlight module is needed to disp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S4/00F21S8/00F21V29/00G02F1/13357F21Y101/02
CPCF21S4/00G02B6/0011G02F1/133628H05K1/0204H05K2201/10106
Inventor 张田萧宇均
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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