Backlight module including annular light-shielding structure and display device including the same

A backlight module, comprising:

• a light source unit, configured to emit light;
• a light guide plate, wherein at least one side surface of the light guide plate is a light incident surface, the light incident surface is close to the light source unit, and the light guide plate is configured to guide the light to a display panel;
• an optical component, attached to a light-exiting surface of the light guide plate and configured to uniformly irradiate the display panel with the light;
• and
• a back plate, at least comprising a bottom plate, for accommodating the light guide plate, the light source unit, and the optical component;
• wherein the light guide plate and the optical component are provided with a hole penetrating through the light guide plate and the optical component, a part of the back plate at the hole is bent and inserted into the hole to form a side wall, a side end surface of the optical component that is close to the hole is inclined with respect to an axis of the hole, and an annular light-shielding structure is provided around a top surface of the hole,
• wherein the optical component comprises a diffusion sheet and a composite prism sheet arranged in a stack, the diffusion sheet is attached to the light-exiting surface of the light guide plate, and a side end surface of the composite prism sheet that is close to the hole is inclined with respect to the axis of the hole.

A display device, comprising a backlight module, wherein the backlight module comprises:

• a light source unit, configured to emit light;
• a light guide plate, wherein at least one side surface of the light guide plate is a light incident surface, the light incident surface is close to the light source unit, and the light guide plate is configured to guide the light to a display panel;
• an optical component, attached to a light-exiting surface of the light guide plate and configured to uniformly irradiate the display panel with the light;
• and
• a back plate, at least comprising a bottom plate, for accommodating the light guide plate, the light source unit, and the optical component;
• wherein the light guide plate and the optical component are provided with a hole penetrating through the light guide plate and the optical component, a part of the back plate at the hole is bent and inserted into the hole to form a side wall, a side end surface of the optical component that is close to the hole is inclined with respect to an axis of the hole, and an annular light-shielding structure is provided around a top surface of the hole,
• wherein the optical component comprises a diffusion sheet and a composite prism sheet arranged in a stack, the diffusion sheet is attached to the light-exiting surface of the light guide plate, and a side end surface of the composite prism sheet that is close to the hole is inclined with respect to the axis of the hole.