Display device and back light module thereof

Abstract

The invention discloses a display and a backlight module thereof. The backlight module includes a base plate, a diffuser plate, at least one support unit and at least two light sources, the support unit includes a reflective part and an engaging part, the engaging part is U-shaped and includes a fixing part, and the fixing part passes through the supporting unit. The engaging part is hung on the support unit, or the engaging part is L-shaped and directly extends downward from the support unit, and the backlight module is divided into at least two light-emitting areas by the support unit arranged between the bottom plate and the diffuser plate, The light sources are respectively arranged in these light-emitting areas, and the light emitted by the light sources located in these light-emitting areas is blocked by the supporting unit and combined with the light-guiding effect of the reflector, which can effectively reduce the probability of light leakage. The display includes the above-mentioned backlight module and For the panel, the light from the light source will be transmitted to the panel after passing through the backlight module. The invention can reduce the probability of light leakage and improve assembly efficiency.

Description

technical field [0001] The invention relates to a display and a backlight module thereof. Background technique [0002] see figure 1 , the existing backlight module 10 includes a base plate 11, a diffuser plate 12, support units 13a, 13b, 13c, and a light source 14, and the support units 13a, 13b, 13c are arranged on the base plate 11 to support the diffuser plate 12 and isolate the light emitting Areas A, B, and C, however, when the backlight module 10 is operating, the luminous areas A, B, and C do not necessarily emit light at the same time (that is, a black screen will be inserted into the luminous areas A, B, and C), at this time, If the supporting units 13a, 13b, 13c do not have special light guide design, light leakage may occur. If the support units 13a and 13b do not have special light guide design, the light in the light emitting regions A and C will easily leak to the light emitting region B where the black screen must be kept, which will cause the contrast of t...

AI Technical Summary

Problems solved by technology

[0002] see figure 1 , the existing backlight module 10 includes a base plate 11, a diffuser plate 12, support units 13a, 13b, 13c, and a light source 14, and the support units 13a, 13b, 13c are arranged on the base plate 11 to support the diffuser plate 12 and isolate the light emitting Areas A, B, and C, however, when the backlight module 10 is operating, the luminous areas A, B, and C do not necessarily emit light at the same time (that is, a black screen will be inserted into the luminous areas A, B, and C), at this time, If the supporting units 13a, 13b, 13c do not have special light guide design, light leakage may occur. If the support units 13a and 13b do not have special light guide design, the light in the light emitting regions A and C will easily leak to the light emitting region B where the black screen must be kept, which will cause the contrast of the backlight module 10 to decrease, and the display effect will also be reduced. with decreasing

[0003] In addition, the existing backlight module 10 does not provide a special structure for assembling the bottom plate 11 and the circuit board 15, so the circuit board 15 may be fixed on the bottom plate 11 by locking, causing inconvenience in assembly.

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