Organic light-emitting display device

• US 8,415,709 B2
• Filed: 07/13/2011
• Issued: 04/09/2013
• Est. Priority Date: 02/10/2011
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Park, Jong-Hyun, Park, Sun, Lee, Yul-Kyu, Kim, Dae-Woo, Yoo, Chun-Gi
• Primary Examiner(s): NGO, NGAN V
• Application Number:
  US13/181,637
• Publication Number:
  US 20120205673A1
• Time in Patent Office: 636 Days
• Field of Search: 257/40, 257/103, 257/E33.074
• US Class Current: 257/103
• CPC Class Codes: H01L 27/1255 integrated with passive devices, e.g. auxiliary capacitors
• CPC Class Codes: H10K 2102/341 Short-circuit prevention
• CPC Class Codes: H10K 59/1216 the pixel elements being capacitors
• CPC Class Codes: H10K 59/131 Interconnections, e.g. wiring lines or terminals

Abstract

An organic light-emitting display device. The organic light-emitting display device includes a substrate, a semiconductor layer arranged on the substrate, an insulating film arranged on the semiconductor layer and a conductive layer arranged on the insulating film, wherein the semiconductor layer comprises a plurality of protrusion lines extending in a first direction, the protrusion lines being parallel to a peripheral edge of the conductive layer.

Claims

1. An organic light-emitting display device, comprising:

a substrate;

a semiconductor layer arranged on the substrate;

an insulating film arranged on the semiconductor layer; and

a conductive layer arranged on the insulating film,

wherein the semiconductor layer comprises a plurality of protrusion lines extending in a first direction, the protrusion lines being parallel to a peripheral edge of the conductive layer, wherein at least one of the protrusion lines is not overlapped by the conductive layer and extends parallel an adjacent peripheral edge of the conductive layer.

2. The device of claim 1, further comprising a wiring electrically connected to the semiconductor layer.

3. The device of claim 1, further comprising a wiring having a main portion that extends in a second direction, the wiring being in contact with and being electrically connected to an extension portion of the semiconductor layer.

4. The device of claim 3, wherein the wiring comprises an extension portion that protrudes in the first direction from the main portion, the extension portion of the wiring being electrically connected to the extension portion of the semiconductor layer by at least one contact.

5. The device of claim 1, wherein the semiconductor layer is doped with impurities, and the insulating layer being a dielectric for the capacitor.

6. The device of claim 1, wherein the conductive layer is a transparent electrode.

7. The device of claim 1, wherein each of the protrusion lines comprises a plurality of protrusions, and the protrusions are arranged in a row along the first direction.

8. The device of claim 2, wherein the wiring and the conductive layer are spaced-apart from each other by a space and do not overlap each other, and at least one of the protrusion lines is arranged within the space between the wiring and the conductive layer.

9. The device of claim 4, wherein a direction in which the extension portion of the wiring protrudes is parallel to a direction in which the protrusion lines extend.

10. The device of claim 2, wherein at least one of the protrusion lines is not overlapped by either the conductive layer or the wiring and extends parallel to an adjacent peripheral edge of the conductive layer.

11. The device of claim 1, further comprising a wiring having a main portion that extends in a second direction, the wiring being electrically connected to the semiconductor layer, wherein the first direction forms an oblique angle with respect to the second direction.

12. The device of claim 11, wherein the wiring also includes an extension portion that protrudes perpendicularly from the main portion of the wiring, the extension portion overlaps the semiconductor layer.

13. The device of claim 11, wherein the conductive layer does not overlap all of the protrusion lines, and a portion of a peripheral edge of the conductive layer that is adjacent to the wiring extends in the first direction.

14. An organic light-emitting display device, comprising:

a substrate comprising a capacitor region;

a semiconductor layer arranged on the substrate and within the capacitor region;

an insulating film arranged on the semiconductor layer;

a transparent electrode arranged on the insulating film of the capacitor region; and

a wiring electrically connected to the semiconductor layer, wherein the semiconductor layer comprises a plurality of protrusion lines extending in a first direction, a portion of the semiconductor layer being overlapped by the wiring, wherein individual ones of the protrusion lines are arranged either entirely within peripheral edges of the transparent electrode or entirely outside the peripheral edges of the transparent electrode, wherein the protrusion lines of the semiconductor layer are parallel to a peripheral edge of the transparent electrode.

15. The device of claim 14, the wiring having a main portion that extends in a second direction that is perpendicular to the first direction.

16. The device of claim 14, wherein each of the protrusion lines comprises a plurality of protrusions, and each of the protrusion lines extend in the first direction.

17. The device of claim 15, wherein the wiring also includes an extension portion that protrudes in the first direction from the main portion of the wiring and is electrically connected to the semiconductor layer, wherein the extension portion and the transparent electrode are spaced-apart from each other by a space, and at least one of the protrusion lines is arranged in the space between the extension portion and the transparent electrode.

18. The device of claim 14, wherein at least one of the protrusion lines is not overlapped by either of the transparent electrode or the wiring.

19. The device of claim 18, wherein the at least one of the protrusion lines which is not overlapped by either the transparent electrode and the wiring extends parallel to at least one peripheral edge of the transparent electrode.

25. The device of claim 14, the semiconductor layer and the transparent electrode being first and second electrode plates of a capacitor arranged within the capacitor region, the semiconductor layer being doped with impurities.

20. An organic light-emitting display device, comprising:

a substrate comprising a capacitor region;

a semiconductor layer arranged on the substrate and within the capacitor region;

an insulating film arranged on the semiconductor layer;

a transparent electrode arranged on the insulating film and within the capacitor region; and

a wiring electrically connected to the semiconductor layer, wherein the semiconductor layer comprises a plurality of protrusion lines extending in a first direction, and the wiring including a main portion that extends in a second direction, wherein the first direction forms an oblique angle with respect to the second direction.

21. The device of claim 20, wherein each of the protrusion lines comprises a plurality of protrusions, and the protrusions are arranged in a row along the first direction.

22. The device of claim 20, wherein the wiring and the transparent electrode are spaced-apart from each other by a space, and at least one of the protrusion lines is arranged within the space between the wiring and the transparent electrode.

23. The device of claim 20, wherein the transparent electrode does not overlap at least one of the protrusion lines.

24. The device of claim 23, wherein the at least one of the protrusion lines which is not overlapped by the transparent electrode extends parallel to an adjacent peripheral edge of the transparent electrode.