Backlight module, display screen and electronic equipment

The invention relates to a backlight module, a display screen and electronic equipment, and belongs to the technical field of liquid crystal display. The backlight module is applied to a liquid crystal display screen and comprises a first light-emitting assembly and a light guide assembly. The light guide assembly comprises a first face and a second face which are oppositely arranged. The light guide assembly is provided with a through hole, the through hole forms a first opening in the first face and forms a second opening in the second face, and the first opening is smaller than the second opening. The light guide assembly receives light output by the first light emitting assembly and guides the light to the part, except the first opening, of the first face to be emitted out. 本公开是关于一种背光模组、显示屏和电子设备，属于液晶显示技术领域。该背光模组应用于液晶显示屏，包括：第一发光组件和导光组件。其中，所述导光组件包括相对设置的第一面和第二面。所述导光组件上设置有通孔，所述通孔在所述第一面上形成第一开口，并在所述第二面上形成第二开口，所述第一开口小于所述第二开口。所述导光组件接收所述第一发光组件输出的光线，并将所述光线导向至所述第一面除去所述第一开口的部分射出。