BACKLIGHT MODULE, DISPLAY PANEL AND DISPLAY DEVICE

摘要

A backlight module, a display panel and a display device are provided, and the backlight module includes a sealant frame (1), a reflecting plate (2) which is provided within the sealant frame (1) and has a reflective surface (21), and a light guide plate (3) which is arranged on the reflecting plate (2) and has a light exit surface (31) and a light transmission surface (32) opposite to each other as well as a light entrance surface (33) connecting the light exit surface (31) and the light transmission surface (32); and an end, where the light entrance surface (33) is located, of the light guide plate (3) is provided with at least one lap joint portion (34) arranged, in a lap joint manner, on the sealant frame (1) and extending toward the sealant frame (1) that the end faces, and the light transmission surface (32) and the reflective surface (21) of the reflecting plate (2) form a gap layer 4 therebetween. The backlight module can avoid the problems of Newton rings occurred between the light guide plate (3) and the reflecting plate (2) and the occurrence of wavy warpage of the reflecting plate (2) under a high temperature.

主权项

1. A backlight module, comprising a sealant frame, a reflecting plate provided within the sealant frame, and a light guide plate provided on the reflecting plate, wherein
the reflecting plate has a reflective surface, the light guide plate has a light exit surface, a light transmission surface and a light entrance surface, the light exit surface is opposite to the light transmission surface, and the light entrance surface is an end face connecting the light exit surface and the light transmission surface; and an end, where the light entrance surface is located, of the light guide plate is provided with at least one lap joint portion which extends toward the sealant frame that the end faces, the lap joint portion is arranged on the sealant frame in a lap joint manner, and a gap layer is formed between the light transmission surface and the reflective surface of the reflecting plate.