Backlight module and display device

Abstract

The invention discloses a backlight module and a display device. The backlight module comprises a metal back plate, and a plastic frame arranged around the edges of the metal back plate, wherein an accommodating space is formed by the metal back plate and the plastic frame. The backlight module further comprises a lamp board, wherein the lamp board is positioned on one side of the metal back plate, and is arranged in the accommodating space; the surface of one side, facing the metal back plate, of the lamp board is provided with a first magnetic material layer; and the first magnetic material layer is adsorbed to the metal back plate. The metal back plate is generally made of an iron or iron alloy material, and the magnetic material has the property of attracting magnetic metal. When the lamp board is mounted in the accommodating space formed by the metal back plate and the plastic frame, the first magnetic material layer can be directly adsorbed onto the metal back plate. The metal back plate and an optical film of the backlight module are arranged in parallel, and the lamp board is closely attached to the metal back plate to ensure that the light mixing distances from light sources at all positions on the lamp board to the optical film are kept uniform, thereby improving light mixing uniformity of the light sources on the lamp board and making the emergent light of the backlight module more uniform.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a backlight module and a display device. Background technique [0002] With the development of display technology, display screens have penetrated into all aspects of people's lives as information displays. Among them, liquid crystal display technology research is mature, and liquid crystal displays have been widely used in various application scenarios. Since the liquid crystal display is a non-self-illuminating device, it needs to provide a backlight source through a backlight module to realize the display function. A backlight module usually includes multiple light sources. In order to make the light incident on the display panel more uniform, the light mixing distance of each light source is required to be the same. However, the backplane and the light board of the backlight module are not integrally formed, so the light board and the backplane are often not tightly bonded...

AI Technical Summary

Problems solved by technology

However, the backplane and the light board of the backlight module are not integrally formed, so the light board and the backplane are often not tightly bonded together, especially in curved display devices, the light board cannot be completely attached to the backplane due to its own stress. This causes the light mixing distance of the light source at this position to be inconsistent with the light mixing distance of other light sources due to the lack of tight fit in some positions, resulting in the problem of uneven backlight illumination.

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