Backlight module and display device

Abstract

The invention relates to a backlight module and a display device. The backlight module comprises a frame body, an optical film group, a bonding layer and a spacing layer; the frame body is internallyprovided with an accommodating space; the inner side wall of the frame body is provided with a first groove and a second groove which are oppositely arranged; the second groove comprises a first sub-groove and a second sub-groove, and the first sub-groove is close to the upper surface of the side wall of the frame body; the length and the width of the first sub-groove are greater than those of thesecond sub-groove; the optical film group comprises a plurality of stacked optical films; each optical film comprises a body part and a convex lug part; the body parts are arranged in the accommodating space; the convex lug parts comprise first convex lugs and second convex lugs; the first convex lugs are fixedly arranged in the first groove; and the second convex lugs are movably arranged in thesecond sub-groove; and the spacing layer is arranged between the bonding layer and the optical film group, is arranged in the first sub-groove, at least completely covers the upper opening of the second sub-groove and is used for spacing the bonding layer and the optical film group, so that wrinkles of the optical films are avoided.

Description

technical field [0001] The invention relates to the technical field of display devices, in particular to a backlight module and a display device. Background technique [0002] The backlight module is one of the key components of the LCD panel. The function is to supply sufficient brightness and evenly distributed light source so that it can display images normally. It is mainly composed of light source, light guide plate, optical film, plastic frame and so on. With the development of science and technology, the backlight module is also constantly developing and improving. At the same time, the backlight module is also widely used, but now the backlight module on the market, the film material is in vibration or in a high temperature and high humidity environment, it is easy to Displacement, deformation, and wrinkling occur, and it cannot be completely flat and smooth in the physical sense, resulting in bright / dark bands at the edge of the viewing area of ​​the backlight modu...

AI Technical Summary

Problems solved by technology

With the development of science and technology, the backlight module is also constantly developing and improving. At the same time, the backlight module is also widely used, but now the backlight module on the market, the film material is vibrating or in a high temperature and high humidity environment, it is easy to Displacement, deformation and wrinkling occur, which cannot be completely flat and smooth in the physical sense, resulting in bright / dark bands at the edge of the viewing area of ​​the backlight module, which affects the display effect

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