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1. 发明公开

EP3640524A1 BACKLIGHT MODULE AND DISPLAY DEVICE 有权
公开(公告)号：EP3640524A1
公开(公告)日：2020-04-22
申请号：EP17909564.1
申请日：2017-06-22
申请人： Wuhan China Star Optoelectronics Technology Co., Ltd.
发明人： XU, Pengbo
IPC分类号： F21K9/20 , G02F1/1333 , F21V7/00 , F21V5/02 , H04M1/22 , F21Y115/10
摘要： A backlight module (100), comprising: a light guide plate (120) which comprises a light incident surface, a light exit surface, and a reflective surface; a reflective plate (110), which is disposed on the reflective surface of the light guide plate (120) and which is used for reflecting a transmitted light in the light guide plate (120) to the light exit surface; a diffusion sheet (130), which is disposed on the light exit surface of the light guide plate (120) and which is used for diffusing a light which is emitted from the light guide plate (120); a prism sheet group (140), which is disposed on a light exit surface of the diffusion sheet (130); a square sealant layer (150), which is disposed around the light exit surface of the light guide plate (120); a light source (170), which is disposed at a light incident surface side of the light guide plate (120); a light shielding layer (160), which is disposed between the diffusion sheet (130) and the square sealant layer (150) and which is disposed at an outer side of the prism sheet group (140), the light shielding layer (160) being disposed in correspondence with a light-incident side of the diffusion sheet (130); the light shielding layer (160) comprises an intermediate section (161) and a lateral section (162) which are separated, the length of the intermediate section (161) being greater than the length of the lateral section (162); two sides of the lateral section (162) are fixedly connected to the diffusion sheet (130) and the square sealant layer (150) respectively, while only one side of the intermediate section (161) is fixedly connected to the square sealant layer (150).

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