Optical film and display module

An optical film applicable to a display module, wherein the optical film comprises:

• a first light-guiding layer having a first light incident surface, a first light-emitting surface facing away from the first light incident surface, and at least one accommodating recessed portion formed on the first light incident surface, wherein the accommodating recessed portion has an inner wall surface and an opening;
• a second light-guiding layer disposed on the first light incident surface, wherein the second light-guiding layer has a second light incident surface, a second light-emitting surface facing away from the second light incident surface, and at least one light-guiding member formed on the second light-emitting surface, wherein each light-guiding member is disposed on each accommodating recessed portion respectively, and each light-guiding member has a top portion, a bottom portion away from the top portion, and a side surface connecting the top portion and the bottom portion, and wherein the side surface of the light-guiding member faces the inner wall surface of the accommodating recessed portion, and the bottom portion of the light-guiding member corresponds to the opening of the accommodating recessed portion;
• and
• at least one light absorption member, wherein the at least one light absorption member is disposed between the side surface of the at least one light-guiding member and the first light-guiding layer, and the light absorption member covers the side surface, wherein
• the first light-guiding layer has a first refractive index, the second light-guiding layer has a second refractive index, and the first refractive index is greater than the second refractive index.