Backlight module

A backlight module, comprising:

• a light source assembly, comprising a light-emitting component, wherein the light-emitting component includes an LED and a lens;
• a light guide film, having a top surface, a bottom surface, a through hole, a light-incident pattern, and a light-exit pattern, wherein the light-emitting component is correspondingly located below the through hole, a size of the through hole is smaller than a size of the light-emitting component, the light of the light-emitting component is emitted upward toward the through hole, and the light-exit pattern is on the bottom surface, and wherein the light-incident pattern is located on at least one of the top surface and the bottom surface and is adj acent to the through hole, the light-exit pattern encloses the through hole, and a distance from the through hole to an entirety of the light-exit pattern is greater than a distance from the through hole to the light-incident pattern;
• and
• a reflective sheet, located above the through hole, wherein a size of the reflective sheet is larger than or equal to the size of the through hole, and a distance from the through hole to an outer edge of the light-exit pattern is greater than a distance from the through hole to an outer edge of the reflective sheet.