A kind of backlight module and display device

Abstract

The invention discloses a backlight module and a display device, comprising: a metal backboard, a plastic frame arranged around the edge of the metal backboard, and the metal backboard and the plastic frame form an accommodation space; the backlight module also includes a lamp board; a lamp board Located on one side of the metal backboard and in the accommodating space, the surface of the light board facing the metal backboard is provided with a first magnetic material layer; the first magnetic material layer adsorbs the metal backboard. The metal backboard is generally made of iron or iron alloy materials. The magnetic material has the property of attracting magnetic metals. When the light board is installed in the accommodation space formed by the metal backboard and the plastic frame, the first magnetic material layer can be directly adsorbed to the metal. back panel. The metal back plate and the optical film of the backlight module will be set in parallel, and the light board is closely attached to the metal back plate to ensure that the light mixing distance from the light source at each position on the light board to the optical film is consistent, thereby improving the light board. The light mixing uniformity of the upper light source makes the outgoing 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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