Anisotropic conductive film and display device including same

A display device, wherein the display device comprises:

• a display panel including a first pad electrode and a second pad electrode, each having a long side extending in a first direction and a short side extending in a second direction intersecting the first direction;
• a printed circuit board including a first lead electrode and a second lead electrode facing the first pad electrode and the second pad electrode, respectively, each of the first lead electrode and the second lead electrode having a long side extending in the first direction and a short side extending in the second direction;
• and
• an anisotropic conductive film disposed between the display panel and the printed circuit board, wherein
• the anisotropic conductive film includes a plurality of first conductive balls and a plurality of second conductive balls,
• each of the plurality of first conductive balls includes a core made of a polymer material and at least one metal layer surrounding the core, and
• each of the plurality of second conductive balls includes a core made of a solder material;
• the anisotropic conductive film includes:
• a first group including a plurality of the first conductive balls arranged in a line in a third direction intersecting the first direction and the second direction and spaced apart from each other by an equal spacing, and
• a second group including a plurality of the second conductive balls arranged in a line in the third direction and spaced apart from each other by an equal spacing, the first group and the second group extending in a parallel manner to each other, and
• each of at least one of the plurality of first conductive balls and at least one of the plurality of second conductive balls is in contact with both the first pad electrode and the first lead electrode.

An anisotropic conductive film, wherein the anisotropic conductive film comprises:

• a base resin including a thermally-curable or photo-curable acrylic resin;
• a plurality of first conductive balls dispersed in the base resin, each of the plurality of first conductive balls including a core made of a polymer material and at least one metal layer surrounding the core;
• and
• a plurality of second conductive balls dispersed in the base resin, each of the plurality of second conductive balls includes a core made of a solder material.

An anisotropic conductive film, wherein anisotropic conductive film comprises:

• a plurality of first conductive balls, each of the plurality of first conductive balls including a core made of a polymer material and at least one metal layer surrounding the core;
• a plurality of second conductive balls, each of the plurality of second conductive balls includes a core made of a solder material,
• a plurality of first groups, each including a plurality of the first conductive balls arranged in a line in a third direction and spaced apart from each other by an equal spacing, the third direction intersecting a first direction as a vertical direction and a second direction as a horizontal direction perpendicular to the vertical direction;
• and
• a plurality of second groups, each including a plurality of the second conductive balls arranged in a line in the third direction and spaced apart from each other by an equal spacing,
• wherein the first groups and the second groups are alternately arranged with each other and extend in a parallel manner to each other.