Backlight module

A backlight module, comprising:

• a first light emitting element, a second light emitting element, and a third light emitting element;
• an inverse prism sheet;
• and
• a light guide assembly disposed opposite to the inverse prism sheet, the light guide assembly comprising:
• a first light guide plate having a first light incidence surface and a first surface, the first light incidence surface disposed opposite to the first light emitting element, the first surface connected to the first light incidence surface, and the first surface located at a side of the first light guide plate opposite to the inverse prism sheet, wherein the first surface is formed with a first sunken eye structure, and the first sunken eye structure has two first eye corner portions opposite to each other, a first long axis is formed by a connecting line between the two first eye corner portions, and the first long axis extends along a reference direction;
• a second light guide plate having a second light incidence surface and a second surface, the second light incidence surface disposed opposite to the second light emitting element, the second surface connected to the second light incidence surface, and the second surface located at a side of the second light guide plate opposite to the inverse prism sheet, wherein the second surface is formed with a second sunken eye structure, the second sunken eye structure has two second eye corner portions opposite to each other, and a second long axis is formed by a connecting line between the two second eye corner portions;
• and
• a third light guide plate having a third light incidence surface and a third surface, the third light incidence surface disposed opposite to the third light emitting element, the third surface connected to the third light incidence surface, and the third surface located at a side of the third light guide plate opposite to the inverse prism sheet, wherein the third surface is formed with a third sunken eye structure, the third sunken eye structure has two third eye corner portions opposite to each other, and a third long axis is formed by a connecting line between the two third eye corner portions;
• wherein an orthographic projection of the second long axis on the first surface and an orthographic projection of the third long axis on the first surface are respectively inclined towards two opposite sides of the reference direction.