Organic light emitting display device with an electrode extending structure

1 . An organic light emitting display device comprising:

a substrate over which a plurality of first to third subpixels is disposed, each subpixel having a light-emitting portion and a non-light-emitting portion surrounding the light-emitting portion;

a first electrode disposed in the light-emitting portion of each of the first to third subpixels;

a first bank having a lateral inclined surface tapered toward the substrate and disposed between two adjacent subpixels of the first to third subpixels in the non-light-emitting portion;

an electrode extending structure located directly on the first electrode and contacting the lateral inclined surface of the first bank on the first electrode;

a light emitting layer located directly on the first electrode, the first bank and the electrode extending structure, and having a discontinuity in a lateral portion of a second bank; and

a second electrode located on the light emitting layer,

wherein the first electrode is disposed closer to the substrate than the second electrode, and the second electrode is disposed further away from the substrate than the light emitting layer,

wherein the electrode extending structure contacts the first electrode, and continuously extends along (i) the lateral inclined surface of the first bank tapered toward the substrate and (ii) a partial lateral inclined surface of the light emitting layer,

wherein an edge of the lateral inclined surface of the first bank tapered toward the substrate and an edge of the partial lateral inclined surface of the light emitting layer directly contact each other, and

wherein the electrode extending structure directly contacts both a top surface of the first electrode and a bottom surface of light emitting layer such that the electrode extending structure does not contact top and bottom surfaces of the second electrode.

2 . The organic light emitting display device according to claim 1 , wherein the light emitting layer contacts an upper portion and at least one lateral portion of the electrode extending structure and the light emitting layer is electrically connected to the first electrode.

3 . The organic light emitting display device according to claim 1 , wherein the electrode extending structure is formed of a same material as the first bank.

4 . The organic light emitting display device according to claim 1 , wherein the electrode extending structure is formed of a conductive material.

5 . The organic light emitting display device according to claim 1 , wherein a part of the electrode extending structure is disposed to overlap with the first bank.

6 . The organic light emitting display device according to claim 1 , further comprising:

an encapsulation portion covering all of a surface of the second electrode; and

a touch sensing layer located on the encapsulation portion.

7 . The organic light emitting display device according to claim 6 , wherein the encapsulation portion flattens unevenness of the first bank and the electrode extending structure.

8 . The organic light emitting display device according to claim 6 , wherein the touch sensing layer receives a touch driving signal through a touch line.

9 . The organic light emitting display device according to claim 1 , wherein the light emitting layer laterally extends across a top surface of the first bank.

10 . The organic light emitting display device according to claim 1 , wherein the second electrode laterally extends across a top surface of the first bank in contact with the light emitting layer.

11 . The organic light emitting display device according to claim 1 , wherein the light emitting layer disposed on the second bank at least partially overlaps the light emitting layer on the first electrode at the discontinuity.

12 . The organic light emitting display device according to claim 1 , wherein the light emitting layer is continuous over the first electrode, the first bank, and the electrode extending structure, and

wherein the second electrode extends from the discontinuity to the first bank.

13 . An organic light emitting display device comprising:

a substrate over which a plurality of first to third subpixels is disposed in an active area surrounded by a non-active area;

a first bank having a lateral inclined surface tapered toward the substrate and disposed between two adjacent subpixels of the first to third subpixels;

an electrode extending structure located directly on a first electrode and contacting the lateral inclined surface of the first bank;

a light emitting layer located directly on the first electrode, the first bank and the electrode extending structure;

a dam located in the non-active area; and

a touch line contacting at least a part of the dam,

wherein the electrode extending structure contacts the first electrode, and continuously extends along (i) the lateral inclined surface of the first bank tapered toward the substrate and (ii) a partial lateral inclined surface of the light emitting layer,

wherein an edge of the lateral inclined surface of the first bank tapered toward the substrate and an edge of the partial lateral inclined surface of the light emitting layer directly contact each other,

wherein the first electrode is disposed closer to the substrate than a second electrode, and the second electrode is disposed further away from the substrate than the light emitting layer, and

wherein the electrode extending structure directly contacts both a top surface of the first electrode and a bottom surface of light emitting layer such that the electrode extending structure does not contact top and bottom surfaces of the second electrode.

14 . The organic light emitting display device according to claim 13 , wherein the dam is formed of a same material as the first bank and has an inverse taper shape.

15 . The organic light emitting display device according to claim 14 , further comprising a second structure contacting at least one lateral surface of the dam.

16 . The organic light emitting display device according to claim 15 , wherein the second structure is located between the dam and the touch line.

17 . The organic light emitting display device according to claim 16 , wherein the second structure overlaps with the at least a part of the dam.

18 . The organic light emitting display device according to claim 16 , wherein the second structure contacts all of a top surface and at least one of both lateral surfaces of the dam.

19 . The organic light emitting display device according to claim 16 , wherein the electrode extending structure, the second structure and the first bank have a same material.

20 . The organic light emitting display device according to claim 13 , wherein the light emitting layer laterally extends across a top surface of the first bank.