Display device

1. A display device comprising:

an array substrate;

a counter substrate provided with color filters; and

a liquid crystal layer between the array substrate and the counter substrate,

wherein

one surface of the array substrate includes

a plurality of signal lines arranged side by side in a first direction with a gap interposed therebetween, a plurality of scanning lines arranged side by side in a second direction with a gap interposed therebetween,

a first organic insulating film provided on the signal lines, and

a second organic insulating film provided on the first organic insulating film;

wherein

each region surrounded by the corresponding scanning line and the corresponding signal line includes

a semiconductor layer,

a first contact conductive layer,

a second contact conductive layer,

a third contact conductive layer provided over the second organic insulating film and the second contact conductive layer, and

a first electrode,

a second electrode provided on the second organic insulating film, and

an inorganic insulating film provided on the second electrode, the first electrode being provided on the inorganic insulating film;

the signal line is electrically coupled to a first part of the semiconductor layer, and the first contact conductive layer is electrically coupled to a second part of the semiconductor layer;

the second contact conductive layer comes into contact with the first contact conductive layer via a first contact hole formed in the first organic insulating film;

at least a part of a contact region of the second contact conductive layer in which the second contact conductive layer is in contact with the first contact conductive layer is covered with the second organic insulating film;

the first electrode and the second contact conductive layer are electrically coupled to each other via a second contact hole formed in the second organic insulating film;

the first electrode comes into contact with the third contact conductive layer via a third contact hole formed in the inorganic insulating film; and

the first contact hole deviates from the second contact hold and the third contact hole in the second direction, and the third contact hole deviates from the first contact hole and the second contact hole in the first direction, such that:

a part of the first contact hole overlaps both of the second contact hole and the third contact hole, a part of the first contact hole overlaps the second contact hole and does not overlap the third contact hole, and a part of the first contact hole overlaps none of the second contact hole and the third contact hole;

a part of the second contact hole overlaps both of the first contact hole and the third contact hole, a part of the second contact hole overlaps the first contact hole and does not overlap the third contact hole, a part of the second contact hole overlaps the third contact hole and does not overlap the first contact hole, and a part of the second contact hole overlaps none of the first contact hole and the third contact hole; and

a part of the third contact hole overlaps both of the first contact hole and the second contact hole, a part of the third contact hole overlaps the second contact hole and does not overlap the first contact hole, and a part of the third contact hole overlaps none of the first contact hole and the second contact hole.

2. The display device according to claim 1 , wherein a first angle formed by a wall surface of the first contact hole formed in the first organic insulating film with a plane parallel to a plane of the array substrate is greater than a second angle formed by a wall surface of the second contact hole formed in the second organic insulating film with a plane parallel to the plane of the array substrate.

3. The display device according to claim 2 , wherein the second angle formed by the wall surface of the second contact hole with the plane parallel to the plane of the array substrate is less than 60 degrees.

4. The display device according to claim 3 , wherein the second angle formed by the wall surface of the second contact hole with the plane parallel to the plane of the array substrate is 45 degrees or more and 55 degrees or less.

5. The display device according to claim 1 , further comprising:

a plurality of metal wires electrically coupled to the second electrode and are provided on the first organic insulating film, wherein

the metal wires are covered with the second organic insulating film.

6. The display device according to claim 1 , wherein a plurality of the second electrodes are arrayed in a matrix in a row-column configuration.

7. The display device according to claim 1 , wherein

at least a part of the contact region is covered with the second organic insulating film.

8. The display device according to claim 1 , wherein, of three of the semiconductor layers arranged side by side in the direction in which the scanning lines extend, the second part of one of the semiconductor layers is on a straight line in which the second parts of the two other semiconductor layers are arranged.

9. The display device according to claim 1 , wherein, of three of the semiconductor layers arranged side by side in the direction in which the scanning lines extend, the second part of one of the semiconductor layers is at a position deviated from a straight line in which the second parts of the two other semiconductor layers are arranged.