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High-power LED backlight module

A backlight module, high-power technology, applied in the field of high-power LED backlight modules, to achieve the effect of reducing operating temperature, increasing light output power, improving reliability and service life

Inactive Publication Date: 2015-11-11
SUZHOU JINGLEI PHOTOELECTRIC LIGHTING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Another object of the present invention is to provide a high-power LED backlight module. By designing a special heat dissipation device in the limited space of the backlight module, the problem of heat dissipation of the high-power LED light-emitting array is solved, thereby improving the performance of the backlight. The light output power of the module is improved, and the thickness of the backlight module is realized at the same time

Method used

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Embodiment Construction

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0030] It should be understood that terms such as "having", "comprising" and "including" as used herein do not entail the presence or addition of one or more other elements or combinations thereof.

[0031] Such as figure 1 , 2 As shown, the present invention provides a household high-power LED backlight module, comprising:

[0032] A plurality of LED lamps 700 are arranged on the upper surface of a partition 600 at intervals, and the positive and negative poles of the plurality of LED lamps 600 are arranged in series end to end, and are covered on the upper surface of the partition 600 to form a uniform light emitting array, so that The light intensity in the light-emitting surface of the entire projection lamp is uniform, which has a good projection effect;

[0033] The ...

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Abstract

The invention discloses a high-power LED backlight module. The high-power LED backlight module comprises a plurality of LED lamps arranged on the surface of a partition board at intervals and connected in series, a heat transfer plate, a semiconductor refrigerator, a radiator and a framework. The upper surface of the heat transfer plate is attached to the lower surface of the partition board. The hot end of the semiconductor refrigerator is attached to the lower surface of the heat transfer plate. The upper surface of the radiator is attached to the cold end of the semiconductor refrigerator. An accommodating cavity is formed in the framework, through holes are formed in the bottom of the framework, and a display screen is arranged on the front portion of the framework. The radiator, the semiconductor refrigerator, the heat transfer plate and the partition board are sequentially arranged in the accommodating cavity. The lower surface of the radiator is arranged on the bottom of the accommodating cavity. The LED lamps face the display screen. By the adoption of the high-power LED backlight module, heat dissipation of a high-power LED light emission array is achieved, and accordingly the light emission efficiency of the backlight module is improved and thinning of the backlight module is achieved.

Description

technical field [0001] The invention relates to a backlight module, more specifically, the invention relates to a high-power LED backlight module. Background technique [0002] The existing direct-type LED backlight module generally includes an LCD display screen, a diffusion film, and a PCB board. A number of packaged LED light sources are arranged on the PCB board. After the LED light source emits light, the light becomes uniform after passing through the diffusion film. Then it irradiates evenly on the LCD display screen, so as to realize the function of illuminating the liquid crystal display device. [0003] However, the power of LED lamps used in LED backlight modules currently on the market should not be too high, thereby limiting the display brightness of the backlight modules, thereby further limiting the development of liquid crystal display devices in the direction of high power and large area. Because the light-emitting area of ​​a single LED lamp is limited, se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S10/02F21V29/54F21V29/70F21V29/87G02F1/13357F21Y101/02
CPCF21S10/02G02F1/133603
Inventor 董佳瑜董春保
Owner SUZHOU JINGLEI PHOTOELECTRIC LIGHTING TECH
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