Backlight module set and display device

Abstract

The invention belongs to the display technical field and relates to a backlight module set and a display device. The backlight module set includes a light guide plate and a plurality of light sources; through grooves passing through the light guide plate are formed in the light guide plate; each through groove includes a first light adjusting portion and a second light adjusting portion; the first light adjusting portions of the through grooves are in one-to-one correspondence with the light sources; the second light adjusting portions are in one-to-one correspondence with intervals between the light sources; in each set of one light source and one first light adjusting portion which are corresponding to each other, the projection of the light source on a light entering surface is located in the projection of the first light adjusting portion on the light entering surface, and the center line of the first light adjusting portion is parallel to the arrangement direction of the plurality of light sources; and according to each second light adjusting portion and a corresponding interval, the projection of the second light adjusting portion on the light entering surface is located in the projection of the interval on the light entering surface, and the distances between the center line of the second light adjusting portion and the light entering surface are gradually decreased from two sides to a middle portion of the center line of the second light adjusting portion. With the backlight module set adopted, a darkened region can be decreased, the distance between the light guide plate and the light sources is decreased, and the light utilization rate of the light sources can be improved, and the narrow frame design of the display device can be realized.

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] At present, the backlight module in liquid crystal display technology generally adopts LED (Light Emitting Diode, Light Emitting Diode) light source to receive light from the side of the light guide plate (edge-lit backlight). Such as figure 1 As shown, in the traditional side-in LED backlight module, the light emitted by the LED light source 1 enters from the side of the light guide plate 2, and after the total reflection of the reflector 3 and the diffuse reflection of the light guide plate 2, it enters the display panel to realize image display. This kind of backlight module always has the problem of luminous dark area (Hotspot) 4. [0003] and, if figure 2 As shown, since the LED light sources 1 all have a certain luminous angle (generally 120°), and at the same time, the LED light sources 1 are arran...

AI Technical Summary

Problems solved by technology

[0004] The current solution to the dark area 4 includes increasing the distance between the light guide plate 2 and the LED light source 1. Although the dark area 4 can be reduced, the distance between the light guide plate 2 and the LED light source 1 is increased and the LED light source is reduced. 1 light utilization efficiency, which is not conducive to the realization of narrow frame design of the display device

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