Backlight module and display device comprising same

Abstract

The invention relates to a backlight module and a display device comprising the same. The backlight module comprises a back plate, at least one reflection structure, a plurality of light guide plates, a plurality of auxiliary reflection structures and a plurality of light sources; the at least one reflection structure is positioned on the back plate; the light guide plates are configured above the at least one reflection structure; each light guide plate is provided with at least one inner side surface and at least one light-incoming surface; the light guide plates are separated mutually so as to form at least one second clearance. The auxiliary reflection structure is positioned on the inner side surface; and the light sources face to the light-incoming surfaces of the light guide plates. So the optimal partial dimming function can be achieved.

Description

technical field [0001] The invention relates to a backlight module and a display device including the backlight module, in particular to a locally adjustable backlight module and a display device including the backlight module. Background technique [0002] refer to Figure 1A , showing a three-dimensional exploded schematic diagram of a conventional display device. refer to Figure 1B , showing a schematic cross-sectional view of a conventional display device. The display device 1 includes a backlight module 10 , a display panel 16 , a signal processor (not shown in the figure) and a plurality of controllers (not shown in the figure). The backlight module 10 includes a backplane 11 , a reflection sheet 12 , a light guide plate 13 , a plurality of LEDs 14 and at least one film 15 . The back plate 11 is an aluminum back plate, which is the main frame of the backlight module 10 and is used to accommodate the reflector 12 , the light guide plate 13 , the LED 14 and the film ...

AI Technical Summary

Problems solved by technology

[0006] In addition, there is another background technology that controls the pixels in the display panel 16 and uses voltage or current to control the rotation angle of the liquid crystal to determine the opening angle to achieve the purpose of local dimming. However, because the pixels have the problem of light leakage , the above-mentioned method of adjusting pixels as a means of local dimming is not effective, and because the light source of the backlight module must be always on, it does not conform to the trend of energy-saving design

Images