Display apparatus including overlapping conductive layers outside the display area

Patent metadata

Field	Value
Publication number	US-10121986-B2
Application number	US-201615381988-A
Country	US
Kind code	B2
Filing date	Dec 16, 2016
Priority date	Jun 16, 2016
Publication date	Nov 6, 2018
Grant date	Nov 6, 2018

Abstract

A display apparatus includes a first conductive line positioned outside a display area of a substrate. A passivation layer covers a portion of the first conductive line. A second conductive line is positioned between the display area and the first conductive line, overlapping the first connection line and including a hole. The hole of the second conductive line overlaps one of at least one opening. A passivation layer is interposed between the second conductive line and a first connection line. Overlapping areas between the first and second conductive lines outside of the display area are decreased, and thus, an occurrence of a short circuit in the display apparatus is decreased.

First claim

What is claimed is:

1. A display apparatus comprising:
a substrate comprising a display area;
a first conductive line outside the display area of the substrate;
a passivation layer covering a portion of the first conductive line;
a first connection line on the passivation layer, the first connection line contacting the first conductive line;
an insulation layer on the passivation layer and the first connection line, the insulation layer comprising at least one opening;
a second connection line on the insulation layer, the second connection line contacting the first connection line via the at least one opening and having an end portion that contacts the first conductive line; and
a second conductive line between the display area and the first conductive line, the second conductive line overlapping the first connection line and comprising a hole in a location corresponding to the at least one opening of the insulation layer so that the hole of the second conductive line overlaps one of the at least one opening of the insulation layer,
wherein the passivation layer is interposed between the second conductive line and the first connection line.

2. The display apparatus of claim 1 ,
wherein the first connection line comprises a plurality of first sub-electrodes arranged in parallel.

3. The display apparatus of claim 2 ,
wherein the plurality of first sub-electrodes overlap the second conductive line.

4. The display apparatus of claim 2 ,
wherein the first connection line comprises a second sub-electrode that is connected to ends of the plurality of first sub-electrodes.

5. The display apparatus of claim 2 ,
wherein a width of each of the plurality of first sub electrodes is smaller than a maximum width of the hole of the second conductive line.

6. The display apparatus of claim 1 ,
wherein a size of the hole of the second conductive line is larger than a size of the at least one opening of the insulation layer.

7. The display apparatus of claim 1 ,
wherein the first conductive line surrounds the display area.

8. The display apparatus of claim 1 ,
wherein the second conductive line is at a side of the display area.

9. The display apparatus of claim 1 ,
wherein the insulation layer covers the first connection line.

10. The display apparatus of claim 1 , further comprising:
a thin film transistor in the display area, the thin film transistor covered by the passivation layer;
a pixel electrode on the passivation layer of the display area, the pixel electrode electrically connected to the thin film transistor;
an opposite electrode on the pixel electrode; and
an emission layer between the pixel electrode and the opposite electrode.

11. The display apparatus of claim 10 ,
wherein the second connection line is a portion of the opposite electrode that extends to an outside of the display area.

12. The display apparatus of claim 10 ,
wherein the first conductive line, the second conductive line and a source electrode of the thin film transistor are on a same layer.

13. The display apparatus of claim 1 ,
wherein the second conductive line is connected to a power line disposed in the display area.

14. The display apparatus of claim 1 ,
wherein the first connection line comprises a reflective conductive material.

15. The display apparatus of claim 1 ,
wherein the first connection line comprises a transparent conductive oxide material.

16. A display apparatus having a display area, comprising:
a first conductive line on an first interlayer insulation layer;
a second conductive line on the first interlayer insulation layer;
a passivation layer covering a portion of the first conductive line and the second conductive line;
a first connection line on the passivation layer, the first connection line contacting a first region of the first conductive line;
a pixel electrode on the passivation layer;
an insulation layer on the passivation layer and the first connection line, the insulation layer covering an edge of the pixel electrode and comprising at least one opening;
an emission layer on the pixel electrode; and
a second connection line on the emission layer and the insulation layer, the second connection line contacting the first connection line via the at least one opening and contacting a second region of the first conductive line,
wherein the second region of the first conductive line is spaced apart from the first region of the first conductive line, and
wherein the second conductive line overlaps the first connection line and comprises a hole in a location corresponding to the at least one opening of the insulation layer so that the hole of the second conductive line overlaps one of the at least one opening of the insulation layer.

17. The display apparatus of claim 16 ,
wherein the first connection line comprises a plurality of sub-electrodes arranged in parallel.

18. The display apparatus of claim 17 ,
wherein a width of each of the plurality of sub-electrodes is smaller than a maximum width of the hole in the second conductive line.

19. The display apparatus of claim 16 ,
wherein a size of the hole in the second conductive line is larger than a size of the at least one opening of the insulation layer.

20. The display apparatus of claim 16 ,
wherein the first conductive line and the second conductive line are disposed at an outside of the display area, and
wherein the second conductive line is connected to a power line disposed in the display area.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Wonse
• Shin Ae

Classifications

• H01L27/3246

  Electricity · mapped topic

• H01L27/3276

  Electricity · mapped topic

• H01L51/5228 Primary

  Electricity · mapped topic

• H01L27/3258

  Electricity · mapped topic

• H10K59/80522

  combined with auxiliary electrodes · CPC title