Backlight module with high screen-to-body ratio and display device

Abstract

The invention discloses a backlight module with high screen-to-body ratio. The module comprises a back plate and an optical component arranged on the back plate, wherein the optical component comprises a reflecting film, a light guide plate and an optical film; the backlight module is provided with a through hole which penetrates through the back plate and the optical component; the upper surfaceof the optical film is provided with light shielding glue corresponding to the through hole; the inner side of the through hole is provided with a shading structure, one end of the shading structure is connected with the back plate, and the other end of the shading structure penetrates through the through hole and is bonded with the shading glue. According to the backlight module provided by the invention, the through hole is directly formed in the back plate, a layer of the shading structure is assembled on the inner side of the through hole to block light rays inside and outside the hole ofthe hole digging area and play a role of fixing the optical component at the position of the through hole, the boundary width of the hole digging area is no longer limited by the width of a rubber frame, the technical effect of reducing the boundary width of the hole digging area is achieved, and the purpose of improving the screen-to-body ratio is achieved.

Description

technical field [0001] The invention relates to the technical field of display modules, in particular to a backlight module and a display device with a high screen-to-body ratio. Background technique [0002] The pursuit of a higher screen-to-body ratio has always been one of the main research directions for smartphones. Due to technical bottlenecks and cost reasons, most smartphones still use LCD screens, which are expected to remain dominant in the long-term future. The LCD itself does not emit light, and it needs a backlight module underneath to display the picture. In the prior art, in order to increase the screen-to-body ratio of the display screen, through holes are provided in the backlight module to accommodate devices such as cameras and speakers to reduce the width of the frame. The iron frame is a structure in which the iron frame at the position of the through hole is stretched to raise the iron frame annular support, and then the plastic frame is injected. Th...

AI Technical Summary

Problems solved by technology

The thin iron frame ring pillar stretched by the iron frame is easy to be deformed and cracked, and the deformation and cracking of the through hole will affect the product quality; and if there is a plastic frame ring pillar in the through hole, it is easy to produce a front when injecting the plastic frame and affect the follow-up camera. assembly, resulting in quality problems

The plastic frame is also easy to separate from the iron frame, which affects the treatment of light

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