Display device and back light module thereof

Abstract

The invention provides a display device and a back light module thereof, wherein, the back light module comprises a reflecting cover, a light source and a light guide plate. The reflecting cover comprises a side wall, a top wall and a bottom wall and consists of a plurality of holding parts; each holding part comprises side plates, top plates and bottom plates which are formed by extending from two ends of the side plates along the same direction; the side plates are connected to form the side wall; the top plates are connected to form the top wall; the bottom plates are connected to form thebottom wall; and the top wall, the side wall and the bottom wall encircle into a holding space. The light source is arranged in the holding space. The light guide plate has a light inlet surface, andthe top wall and the bottom wall hold the light guide plate so as to keep the light inlet surface in the holding space.

Description

technical field [0001] The present invention relates to a display device and its backlight module, in particular to a display device with a multi-segment reflector and its backlight module. Background technique [0002] Since the liquid crystal display panel (LCD Panel) is thin, light in weight and easy to carry, it has the advantage of low radiation compared with the CRT display, so that the demand has increased rapidly in recent years. Especially the backlight module (Backlight Module) is one of the key components of the liquid crystal display panel. For the backlight module, the cooperation between the reflector and the light guide plate is very important. [0003] In the prior art, the general structure of the side-illuminated backlight module adopts a metal or paper reflector, and uses a single structure to achieve the purpose of combining with the light guide plate and emitting light. See Figure 1A and 1B , Figure 1A and 1B Shown is a schematic diagram of a backl...

AI Technical Summary

Problems solved by technology

And once this happens, the brightness and uniformity of the light source provided by the backlight module 5 will be greatly reduced.

[0005] In addition, in the structure of large-sized models, it is more difficult to control the size of the light guide plate and the reflector, so the problem of light leakage is more likely to occur in their cooperation.

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