Display device and manufacturing method thereof
AssigneeSamsung Display Co., Ltd.
InventorsDae Hyuk Im, Byoung Yong Kim
Life of this patent
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Abstract
A display device includes a display panel. A flexible printed circuit board is electrically connected to the display panel. A first pad is disposed on the display panel. A second pad is disposed on the flexible printed circuit board and overlaps the first pad. A first anisotropic conductive film is disposed between the first pad and the second pad. The first anisotropic conductive film is configured to bond the first pad to the second pad. The first anisotropic conductive film includes a conductive polymer. The first anisotropic conductive film includes at least one first conductive region that electrically connects the first pad and the second pad and at least one first insulating region.
Claims19
A display device comprising:
- a display panel;
- a flexible primed circuit board electrically connected to the display panel a first pad disposed on the display panel;
- a second pad disposed on the flexible printed circuit board and overlapping the first pad;
- and
- a first anisotropic conductive film disposed between the first pad and the second pad, the first anisotropic conductive film configured to bond the first pad to the second pad;
- wherein the first anisotropic conductive film includes a conductive polymer, and
- the first anisotropic conductive film includes a first conductive region that is configured to electrically connect the first pad and the second pad and a first insulating region, and
- wherein the first conductive region includes trans-polyacetylene, and
- the first insulating, region includes cis-polyacetylene.
A display device comprising:
- a display panel;
- a flexible printed circuit board electrically connected to the display panel;
- a first pad disposed on the display panel;
- a second pad disposed on the flexible printed circuit board and overlapping the first pad;
- and
- a first anisotropic conductive film disposed between the first pad and the second pad, the first anisotropic conductive film configured to bond the first pad to the second pad,
- wherein the first anisotropic conductive film includes a first conductive region configured to electrically connect the first pad to the second pad and a first insulating region,
- the first conductive region includes a polysilicon, and
- the first insulating region includes an amorphous silicon.
A manufacturing method of a display device, the method comprising:
- providing a display panel and a flexible printed circuit board;
- attaching an anisotropic conductive film to the display panel or the flexible printed circuit board;
- providing a mask on the anisotropic conductive film, wherein the mask includes an opening in an area corresponding to a pad of the display panel or a pad of the flexible printed circuit board;
- and
- irradiating a laser onto the anisotropic conductive film through the opening of the mask onto a region of the anisotropic conductive film that overlaps the pad of the display panel or the pad of the flexible printed circuit board, the laser increases a conductivity of the anisotropic conductive film to form a conductive region in a region that was irradiated by the laser and an insulating region in a region that was not irradiated by the laser.
Dependencies are inferred from the claim text.