Backlight module, display screen assembly and electronic device

• Main Author: HU GUANGYUE
• Format: Patent
• Language: Chinese; English
• Published: 01.01.2021
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

The invention discloses a backlight module, a display screen assembly and an electronic device, and belongs to the technical field of intelligent equipment. The backlight module comprises a backboardmain body, a bending part, a light guide plate, an optical film material and a shading layer, the backboard body is provided with a first through hole. And the bending part is arranged around the first through hole and extends towards one side far away from the backboard main body. The light guide plate and the backboard main body are arranged in a stacked manner and surround the periphery of thebending part. The optical film material is stacked with the light guide plate, surrounds the periphery of the bent part and is positioned on one side, far away from the backboard main body, of the light guide plate. The light shielding layer is arranged around the first through hole in a surrounding mode, the light shielding layer is configured to be at least partially stacked with the optical film material and fixedly att