Backlight module and display device

Abstract

The invention provides a backlight module which comprises a light source, a light guide plate and reflective sheets, wherein the reflective sheets comprise a first reflective sheet and a second reflective sheet; the first reflective sheet is arranged on the lateral surface of the light guide plate; the second reflective sheet is arranged at the bottom of the light guide plate; the light source is arranged below the first reflective sheet; the first reflective sheet is used for reflecting light emitted by the light source into the light guide plate; and after being scattered by the light guide plate and reflected by the second reflective sheet, the light is emitted out from the top of the light guide plate. Correspondingly, the invention provides a display device which comprises the backlight module. The backlight module provided by the invention has the advantages of thinning, increase of an effective lighting area, shape diversification and the like.

Description

technical field [0001] The invention relates to the technical field of display manufacturing, in particular to a backlight module and a display device including the backlight module. Background technique [0002] Liquid crystal displays have occupied a dominant position in the current flat panel display market due to their small size, low power consumption, and low radiation. In the liquid crystal display, since the liquid crystal itself does not emit light, it only regulates the light. In order to display images on the screen of the liquid crystal display, it is necessary to configure a backlight module (BLU, Back Light Unit) for the display panel (Panel). [0003] Generally speaking, the backlight module can be divided into side-type backlight module and direct-type backlight module according to the position of the light source in the backlight module, wherein the light source in the side-type backlight module is located on the side of the display panel. , the light sourc...

AI Technical Summary

Problems solved by technology

The advantage of this side-type backlight module is that the LED as the light source enters light from the side of the light guide plate, and does not require a vertical light mixing distance, so the side-type backlight module can be ultra-thin. However, due to the light source setting On the side of the light guide plate, the light mixing distance in the horizontal direction (that is, the distance between the LED light bar 5 and the side of the light guide plate 3 ) is still required, so the outer frame of the side-type backlight module is compared to the outer frame of the direct-type backlight module. It is much larger, which relatively reduces the effective lighting area. At the same time, because the LED light bar can only be made into a straight and regular shape, it is difficult to make the side-type backlight module into a round or irregular shape.

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