LIQUID CRYSTAL DISPLAY DEVICE, BACKLIGHT MODULE AND BACK PLATE ASSEMBLY THEREOF

摘要

A liquid crystal display device, a backlight module and a back plate assembly thereof. The back plate assembly comprises a movable piece (11) and a cross member (12). A bearing part (111) and a vertical part (112) are arranged on the movable piece (11), the bearing part (111) is used for bearing a light guide plate of the backlight module, and the vertical part (112) is used for arranging a light source (113) of the backlight module. A first guide part (114) is arranged on the bearing part (111), and a second guide part (121) is arranged on the cross member (12). The first guide part (114) cooperates with the second guide part (121) to realize the relative sliding connection between the movable piece (11) and the cross member (12), so that the translation sliding for the light source (113) to move away from or approach the cross member (12) can be realized, thus the problems of the light guide plate warping caused by insufficient rigidity of the back plate assembly are solved effectively.