Backlight module and display device

Abstract

The invention discloses a backlight module and a display device, and relates to the technical field of display. The backlight module comprises a back frame, a light incident surface which comprises alight incident surface, wherein the light incident surface intersects with the light emergent surface of the backlight module; an LED light source which is located in a frame area and located at one side of the light incident surface of the light guide plate, and comprises a plurality of LEDs; a diffusion sheet which is located on the sides, away from the substrate, of the light guide plate and the LEDs, wherein the orthographic projection of the diffusion sheet on the plane where a substrate is located covers the orthographic projection of the light guide plate on the plane where the substrate is located, and the orthographic projection overlaps with the orthographic projections of the LEDs on the plane where the substrate is located; a diffusion black strip which is located in the framearea and located at the side, away from the substrate, of the diffusion sheet; a deformation barrier layer which is located in the frame area and located at the side, away from the substrate, of the diffusion black strip, wherein the deformation barrier layer and the diffusion black strip are not bonded; a shading adhesive tape which is located in the frame area and located at the side, away fromthe substrate, of the deformation blocking layer, and is at least bonded with the deformation blocking layer. Therefore, a firefly phenomenon caused by the light leakage in front of a lamp can be improved.

Description

technical field [0001] The present invention relates to the field of display technology, and more specifically, to a backlight module and a display device. Background technique [0002] Liquid crystal display is a flat and ultra-thin display device, which consists of a certain number of color or black and white pixels, placed in front of the light source or reflective surface. Liquid crystal displays consume very little power, making them favored by engineers for electronic devices that run on batteries. Its main principle is to stimulate liquid crystal molecules with current to generate points, lines, and surfaces to form a picture with the back lamp tube. [0003] The display panel in the liquid crystal display cannot emit light, and the light source provided by the backlight module is needed to realize the display function. The backlight module usually includes a side-type backlight module and a direct-type backlight module. In the direct-type backlight module, the back...

AI Technical Summary

Problems solved by technology

[0004] However, since the backlight module is usually bonded to the display panel through the light-shielding tape, the light-shielding tape will be bonded to the above-mentioned diffusion black stripes at the same time. When the light-shielding tape is pulled due to external force, the diffusion black stripes will also be pulled. The deformation will weaken the effect of the diffused black stripes on the light beam of the backlight light source, which may lead to the phenomenon of fireflies with uneven brightness and darkness in the position of the backlight light source on the display device.

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