Backlight module and display device

Abstract

The invention discloses a backlight module and a display device. The backlight module comprises a fixed frame, a reflection plate, a light guide pate and an optical diaphragm, wherein the reflection plate, the light guide plate and the optical diaphragm are sequentially connected from the bottom up; the fixed frame comprises an upper sealing plate, a side sealing plate and a lower sealing plate; aheat dissipation cavity is formed between the light reflection plate and the lower sealing plate; an installation hole is formed in the side sealing plate; a light bar is arranged in the installationhole; an LED lamp is arranged on the inner side of the light bar; a heat dissipation sealing block connected with the lower sealing plate is arranged below the LED lamp; a vent hole communicated withthe heat dissipation cavity is arranged on the heat dissipation sealing block; the side sealing plate is provided with an air inlet hole corresponding to the position of the vent hole; one end of thereflection plate is connected with the heat dissipation sealing block; the upper end of the light guide plate is connected with the lower end face of the sixth sealing block; one end of the optical diaphragm is connected with one end of the sixth sealing block. The display device comprises a shell, a liquid crystal display panel and the backlight module.

Description

technical field [0001] The invention relates to a backlight module and a display device. Background technique [0002] The backlight module is one of the key components of the liquid crystal display panel. The liquid crystal display is a passive light-emitting element. The display itself does not emit light, but is illuminated by the backlight system below it. The combination of the backlight source and the liquid crystal display screen constitutes the liquid crystal display module. [0003] With the development of society, the thickness of liquid crystal displays is getting thinner and thinner, which will cause the backlight module to lack enough heat dissipation space, so that a large amount of heat gathers in the inner cavity of the backlight module, which will affect the mold The components of the group cause certain hazards, and the long-term heat loss will affect the stability and service life of the components, thereby reducing the display effect of the display dev...

AI Technical Summary

Problems solved by technology

[0003] With the development of society, the thickness of liquid crystal displays is getting thinner and thinner, which will cause the backlight module to lack enough heat dissipation space, so that a large amount of heat gathers in the inner cavity of the backlight module, which will affect the mold The components of the group will cause certain hazards. If the heat cannot be dissipated for a long time, it will affect the stability and service life of the components, resulting in a decrease in the display effect of the display device.

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