According to one embodiment, a display panel includes an array substrate and a counter substrate. The array substrate includes an inorganic insulating film, a first wiring line, a second wiring line, an organic insulating film, a slit and a moisture-proof member. The slit is formed to extend through the organic insulating film between the first wiring line and the second wiring line. The moisture-proof member is filled in the slit and is in contact with the inorganic insulating film.
1. A display panel comprising:
an array substrate comprising an inorganic insulating film that is provided above a substrate and positioned in a display region and a frame region surrounding the display region;
a first wiring line and a second wiring line that are formed at an interval on the inorganic insulating film and positioned in the frame region;
an organic insulating film that is provided above the inorganic insulating film, is positioned in the display region and the frame region and completely covers the first wiring line and the second wiring line;
a slit that is formed to extend through the organic insulating film between the first wiring line and the second wiring line, each portion of the slit being arranged parallel to at least one of the first wiring line and the second wiring line, each portion of the first wiring line and the second wiring line being outside of, and separated from, the slit, and the slit being filled with a moisture-proof member that is in contact with the inorganic insulating film; and
a counter substrate that is arranged to face the array substrate with a gap,
wherein
the first wiring line is adjacent to the second wiring line,
the first wiring line is a power supply wiring line positioned on a side of the display region with respect to the slit,
the second wiring line is a control signal wiring line positioned on an outer edge side of the array substrate with respect to the slit, and
the slit has a width of 5 to 10 μm.
2. The panel according to claim 1 , further comprising a connection wiring line that is positioned on the frame region, covered with the inorganic insulating film, and crosses the slit,
wherein the second wiring line is electrically connected to the connection wiring line.
3. The panel according to claim 1 , wherein the slit is formed to extend in a direction in which the first wiring line and the second wiring line run.
4. The panel according to claim 1 , wherein
the organic insulating film includes another frame-like slit that is positioned on the outer edge side of the array substrate with respect to the first wiring line and the second wiring line and is formed to extend through the organic insulating film, and
the array substrate includes another moisture-proof member that is filled in the other slit and is in contact with the organic insulating film.
5. The panel according to claim 1 , further comprising a sealing member that faces the frame region and bonds the array substrate and the counter substrate,
wherein the moisture-proof member is formed from part of the sealing member filled in the slit.
6. The panel according to claim 1 , further comprising a sealing member that faces the frame region, bonds the array substrate and the counter substrate, and is in contact with the moisture-proof member,
wherein the moisture-proof member is formed from a material different from the sealing member.
7. The panel according to claim 6 , further comprising a liquid crystal layer that is formed in a space surrounded by the array substrate, the counter substrate, and the sealing member,
wherein the array substrate further includes an inorganic alignment film that is formed in at least the display region and extend from the display region to a position facing the slit in the frame region, and
the moisture-proof member is formed from part of the inorganic alignment film filled in the slit.
8. The panel according to claim 6 , wherein
the array substrate further includes a columnar spacer that keeps the gap between the array substrate and the counter substrate, and
the moisture-proof member is formed from a material forming the columnar spacer.
9. The panel according to claim 1 , wherein the moisture-proof member is formed along the slit.