Display device and organic light emitting display device having auxiliary electrode
A display device including a substrate; an organic light emission unit, which is arranged on the substrate, wherein light emission regions arranged in a first direction emit light of a same color and light emission regions adjacent to one another from among light emission regions arranged in a second direction crossing the first direction emit light of different colors; a counter electrode, which is arranged to cover at least the light emission regions; and an auxiliary electrode, which is formed on the auxiliary electrode, does not overlap the light emission regions, and extends in the second direction.
1. A display device comprising:
a substrate;
an organic light emission unit comprising light emission regions arranged on the substrate, wherein light emission regions arranged in a first direction emit light of a same color and light emission regions adjacent to one another from among light emission regions arranged in a second direction crossing the first direction emit light of different colors;
a counter electrode, arranged to cover at least the light emission regions; and
an auxiliary electrode, on the counter electrode,
wherein the auxiliary electrode does not overlap the light emission regions, extends in the second direction;
an auxiliary layer formed in at least one of the light emission regions.
2. The display device of claim 1 , further comprising
non-light emission regions that are arranged between the light emission regions arranged in the first direction, and
wherein the auxiliary electrode is arranged in at least one of the non-light emission regions.
3. The display device of claim 1 , wherein the substrate comprises
long sides extending in the first direction and short sides extending in the second direction, and
the auxiliary electrode extends in the direction in which the short sides extend.
4. The display device of claim 3 , wherein a terminal for applying power to the auxiliary electrode is arranged near at least one of the long sides.
5. The display device of claim 1 , wherein the substrate comprises
long sides extending in the second direction and short sides extending in the first direction, and
the auxiliary electrode extends in the direction in which the long sides extend.
6. The display device of claim 5 , wherein a terminal for applying power to the auxiliary electrode is arranged near at least one of the short sides.
7. The display device of claim 1 , wherein first sides of the light emission regions extending in the first direction are longer than second sides of the light emission regions extending in the second direction.
8. The display device of claim 1 , wherein the counter electrode is arranged to be phototransmissive.
9. The display device of claim 1 , wherein the auxiliary electrode comprises a metal with a low resistance.
10. The display device of claim 1 , wherein the auxiliary layer is arranged to be phototransmissive.
11. The display device of claim 1 , wherein
the auxiliary layer has first side edges, and
the auxiliary electrode has second side edges of which side surfaces contact side surfaces of the first side edges.
12. The display device of claim 11 , wherein adhesion between the auxiliary electrode and the auxiliary layer is weaker than adhesion between the auxiliary electrode and the counter electrode.
13. The display device of claim 11 , wherein the auxiliary electrode comprises Mg or Mg alloy.
14. The display device of claim 1 , wherein the auxiliary layer comprises 8-Quinolinolato Lithium (Liq), N,N-diphenyl-N,N-bis(9-phenyl-9H-carbazol-3-yl)biphenyl-4,4′-diamine (HT01), N(diphenyl-4-yl)9,9-dimethyl-N-(4(9-phenyl-9H-carbazol-3-yl)phenyl)-9H-fluorene-2-amine (HT211), or 2-(4-(9,10-di(naphthalene-2-yl)anthracene-2-yl)phenyl)-1-phenyl-1H-benzo-[D]imidazole (LG201).
15. The display device of claim 1 , wherein a first electrode is formed in correspondence to at least one of the light emission regions,
further comprising a thin-film transistor (TFT) electrically connected to the first electrode.
16. An organic light-emitting display device comprising:
a substrate, which comprises:
a first region; and
second regions, which are arranged by interposing the first region therebetween and emit light of a same color;
first electrodes arranged in the second regions;
second electrodes, which face the first electrodes and are arranged to cover the first region and the second regions;
organic light-emitting layers which are interposed between the first electrode and the second electrodes and emit light;
a third electrode, which contacts at least one of the second electrodes and is arranged in the first region; and
an organic layer formed at least on the second electrodes in the second regions.
17. The organic light-emitting display device of claim 16 , wherein
the substrate comprises long sides extending in a first direction and short sides extending in a second direction, and
the third electrode extends in the direction in which the short sides extend.
18. The organic light-emitting display device of claim 16 , wherein
the substrate comprises long sides extending in a second direction and short sides extending in a first direction, and
the third electrode extends in the direction in which the long sides extend.
19. The organic light-emitting display device of claim 16 , wherein at least one of the second electrodes is formed to be phototransmissive.
20. The organic light-emitting display device of claim 16 , wherein the third electrode comprises a metal with a low resistance.
21. The organic light-emitting display device of claim 16 , wherein the organic layer is arranged to be phototransmissive.
22. The organic light-emitting display device of claim 16 , wherein
the organic layer has first side edges, and
the third electrode has second side edges of which side surfaces contact side surfaces of the first side edges.
23. The organic light-emitting display device of claim 22 , wherein adhesion between the third electrode and the organic layer is weaker than adhesion between the third electrode and the second electrode.