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Backlight source lamp group

A technology of backlight source and lamp group, applied in the direction of light source, point light source, fixed light source, etc., can solve the problem of obvious heating phenomenon, without considering how to effectively use the heat energy of LED backlight source, etc., to achieve the effect of improving luminous intensity

Active Publication Date: 2010-03-31
K TRONICS (SUZHOU) TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the LED backlight itself has inherent defects: when multiple groups of LEDs are used at the same time, the heating phenomenon is obvious
[0005] In the prior art, most of the treatments for the heat generation of LED backlights only consider how to dissipate heat from LED backlights, but do not consider how to effectively utilize the heat generated by LED backlights.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] figure 1 with figure 2 All shown are schematic structural diagrams of the LED side-entry backlight lamp group of the embodiment of the present invention; it can be seen from the figure that the LED side-entry backlight lamp group includes: lampshade 100, reflective film 101, circuit board 102, LED 103 and a thermoluminescent material layer 104; a reflective film 101 and a circuit board 102 are pasted inside the lampshade 100, and the circuit board 102 is pasted in the lampshade 100 through a thermally conductive adhesive 105; LED 103 is arranged on the circuit board 102, and the circuit board A thermoluminescent material layer 104 is provided on the side of the LED 102 provided with the LED 103, and a through hole corresponding to the LED 103 is provided on the thermoluminescent material layer 104, and the LED 103 passes through the through hole.

[0019] The thermoluminescent material contained in the thermoluminescent material layer 104 uses alkaline earth sulfide a...

Embodiment 2

[0030] image 3 with Figure 4 All shown are schematic structural diagrams of the LED direct-lit backlight lamp group according to the embodiment of the present invention; it can be seen from the figure that the LED side-type backlight lamp group includes: a circuit board 300, an LED 301, and a thermoluminescent material layer 302 LED 301 is provided on the circuit board 300, and a thermoluminescent material layer 302 is provided on the side where the LED 301 is provided on the circuit board 300, and the circuit board 300 and the thermoluminescent material layer 302 are fastened on the back panel of the display and Between the frames, and between the circuit board 300 and the backplane are bonded by thermally conductive glue 304; a through hole corresponding to the LED 301 is provided on the thermoluminescent material layer 302, and the LED 301 passes through the through hole.

[0031] The material selected for the thermoluminescent material layer 302 and the preparation meth...

Embodiment 3

[0035] For backlights that use monochromatic LEDs and corresponding phosphors to produce white light, blue LEDs and yellow phosphors are commonly used in the prior art to produce white light. The luminescent material layer utilizes the thermal energy generated by the LED.

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PUM

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Abstract

The invention discloses a backlight source lamp group, relating to the liquid crystal display devices to solve the problem that the prior art only considers heat dissipation mostly when light emissionof a backlight source of an LED generates heat energy. The backlight source lamp group comprises a circuit board and the LED arranged on the circuit board, wherein one side of the circuit board whichis provided with the LED is provided with a thermoluminescent material layer; the thermoluminescent material layer is provided with a through hole corresponding to the LED; and the LED passes throughthe through hole. The invention is applicable to heat energy treatment generated by light emission of the LED in the LED backlight source.

Description

technical field [0001] The invention relates to a liquid crystal display device, in particular to a backlight lamp group using LEDs. Background technique [0002] Since the LED (Light Emitting Diode, Light Emitting Diode) backlight source does not contain toxic substance mercury, and has the advantages of excellent color gamut display and good mechanical vibration stability, the adoption of LED backlight source has become one of the mainstream trends in the development of liquid crystal display devices. However, the LED backlight itself has inherent defects: when multiple groups of LEDs are used at the same time, the heating phenomenon is obvious. [0003] At present, most of the heat treatment ideas and measures for LED backlights are heat dissipation, and heat dissipation is achieved by designing heat dissipation structures or additional heat dissipation devices. For example, air convection holes are provided on the housing of the liquid crystal display device at position...

Claims

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Application Information

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IPC IPC(8): F21S19/00F21K2/04F21V19/00C09K11/08G02F1/13357F21Y101/02
Inventor 康方
Owner K TRONICS (SUZHOU) TECH CO LTD
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