Display device and method for manufacturing display device
View Patent ↗A display device includes a pixel provided in each of a plurality of pixels; a common electrode provided commonly to the plurality of pixels; an organic layer provided between the pixel electrode and the common electrode; a first insulating layer provided on the common electrode; a common potential line provided below the organic layer in an area where the first insulating layer, the common electrode and the organic layer are provided in a stacked manner; a contact electrode provided in an opening running through the first insulating layer, the common electrode and the organic layer, the contact electrode being provided on the common potential line; and a second insulating layer covering the first insulating layer and the contact electrode.
1. A display device, comprising:
a pixel electrode provided in each of a plurality of pixels arrayed on a substrate;
a common electrode provided commonly to the plurality of pixels;
an organic layer provided between the pixel electrode and the common electrode;
a first insulating layer provided on the common electrode;
a common potential line provided below the organic layer in an area where the first insulating layer; the common electrode and the organic layer are provided in a stacked manner;
a contact electrode provided in an opening passing through the first insulating layer, the common electrode and the organic layer, the contact electrode being provided on the common potential line; and
a second insulating layer covering the first insulating layer and the contact electrode.
2. The display device according to claim 1 , wherein the contact electrode is located in a peripheral area on the substrate.
3. The display device according to claim 1 , wherein the contact electrode is located in a display area on the substrate.
4. The display device according to claim 1 , wherein the contact electrode fills the opening.
5. The display device according to claim 1 , wherein the contact electrode is located on a side wall and a bottom of the opening.
6. The display device according to claim 1 , further comprising:
a third insulating layer covering the second insulating layer; and
a fourth insulating layer covering the third insulating layer.
7. The display device according to claim 3 , wherein the contact electrode is located in each of at least a part of pixels in the display area on the substrate.
8. A display device, comprising:
a pixel electrode provided in each of a plurality of pixels arrayed on a substrate;
an organic layer provided on the pixel electrode;
a common electrode provided on the organic layer commonly to the plurality of pixels;
a first insulating layer provided on the common electrode;
an inorganic insulating layer provided below the organic layer in an area where the first insulating layer, the common electrode and the organic layer are provided in a stacked manner;
a contact electrode provided in an opening passing through the first insulating layer, the common electrode and the organic layer, the contact electrode being provided on the inorganic insulating layer in a peripheral area enclosing the plurality of pixels; and
a second insulating layer covering the first insulating layer and the contact electrode.
9. The display device according to claim 8 , wherein the contact electrode is located to fill the opening.
10. The display device according to claim 8 ; wherein the contact electrode is located on a side wall and a bottom of the opening.
11. A method for manufacturing a display device; comprising:
forming a plurality of pixel electrodes on a first surface of a substrate;
forming a common potential line on the first surface of the substrate;
forming an organic layer on a display area of the substrate so as to cover the plurality of pixel electrodes and the common potential line;
forming a common electrode on the organic layer;
forming a first insulating layer on the common electrode;
forming an opening reaching the common potential line;
forming a contact electrode in the opening; and
forming a second insulating layer so as to cover the first insulating layer and the contact electrode.
12. The method for manufacturing a display device according to claim 11 , wherein the opening is formed by laser irradiation from the side of the first surface of the substrate.
13. The method for manufacturing a display device according to claim 11 , wherein the contact electrode is formed in the opening by filing the opening with a metal material.
14. The method for manufacturing a display device according to claim 11 , wherein the contact electrode is formed in the opening by attaching a metal material on a side wall and a bottom of the opening.
15. The method for manufacturing a display device according to claim 11 , wherein the contact electrode is formed in the opening by a laser CVD method.
16. The method for manufacturing a display device according to claim 11 , wherein the contact electrode is formed in the opening by an inkjet method.
17. The method for manufacturing a display device according to claim 11 , further comprising: forming a third insulating layer so as to cover the second insulating layer; and forming a fourth insulating layer so as to cover the third insulating layer.