Organic light-emitting display device

Patent metadata

Field	Value
Publication number	US-2016268540-A1
Application number	US-201514883248-A
Country	US
Kind code	A1
Filing date	Oct 14, 2015
Priority date	Mar 9, 2015
Publication date	Sep 15, 2016
Grant date	—

Abstract

An organic light-emitting display device includes: a substrate; a display on the substrate and comprising a display region and a non-display region at a perimeter of the display region; a thin-film encapsulation layer sealing the display; a voltage line at the non-display region and surrounding the display region; and a dam unit overlapping an edge of an outer side of the voltage line, wherein the voltage line comprises: a first voltage line at one side of the display region; and a second voltage line surrounding a pair of first end portions of the first voltage line and other sides of the display region, and an outer side of the first voltage line and an outer side of the second voltage line are on a same line outside the one side of the display region.

First claim

What is claimed is:

1 . An organic light-emitting display device comprising:
a substrate; a display on the substrate and comprising a display region and a non-display region at a perimeter of the display region; a thin-film encapsulation layer sealing the display; a voltage line at the non-display region and surrounding the display region; and a dam unit overlapping an edge of an outer side of the voltage line, wherein the voltage line comprises:
a first voltage line at one side of the display region; and
a second voltage line surrounding a pair of first end portions of the first voltage line and other sides of the display region, and
an outer side of the first voltage line and an outer side of the second voltage line are on a same line outside the one side of the display region.

2 . The organic light-emitting display device of claim 1 , wherein the second voltage line comprises a pair of second end portions bent to cover outer sides of the pair of first end portions, and
each of the pair of first end portions is between the display region and the pair of second end portions.

3 . The organic light-emitting display device of claim 2 , wherein a first width of the first voltage line between the pair of first end portions is greater than a second width of the pair of first end portions.

4 . The organic light-emitting display device of claim 2 , wherein the outer side of the first voltage line is between the pair of first end portions, and
the outer side of the second voltage line is between the pair of second end portions.

5 . The organic light-emitting display device of claim 4 , wherein, outside the one side of the display region, the dam unit is continuously formed at an edge of the outer side of the first voltage line and an edge of the outer side of the second voltage line.

6 . The organic light-emitting display device of claim 2 , wherein the first voltage line comprises a pair of first connection units, and
a pair of second connection units are on the pair of second end portions to be parallel to the pair of first connections.

7 . The organic light-emitting display device of claim 6 , wherein the display further comprises a pad unit configured to supply an electric signal to the display region,
wherein the pad unit is outside the at least one side of the display region, and the pair of first connection units and the pair of second connection units are connected to the pad unit.

8 . The organic light-emitting display device of claim 1 , wherein the thin-film encapsulation layer comprises at least one inorganic film and at least one organic film,
wherein the at least one organic film is inside the dam unit.

9 . The organic light-emitting display device of claim 1 , wherein the thin-film encapsulation layer comprises:
a plurality of inorganic films; and a plurality of organic films between the plurality of inorganic films, wherein the plurality of inorganic films are in contact with one another outside the dam unit.

10 . The organic light-emitting display device of claim 1 , wherein the display comprises:
a thin-film transistor; an organic light-emitting device electrically connected to the thin-film transistor; a passivation film between the thin-film transistor and the organic light-emitting device; and a pixel defining film defining a pixel region of the organic light-emitting device, wherein the dam unit comprises a same material as at least one of the passivation film and the pixel defining film.

11 . The organic light-emitting display device of claim 10 , wherein the passivation film overlaps an edge of an inner side of the voltage line.

12 . The organic light-emitting display device of claim 10 , wherein the organic light-emitting device comprises:
a first electrode electrically connected to the thin-film transistor; a second electrode opposite the first electrode; and an intermediate layer between the first and second electrodes.

13 . The organic light-emitting display device of claim 12 , wherein the second electrode is connected to the second voltage line.

14 . The organic light-emitting display device of claim 10 , wherein the thin-film transistor comprises:
an active layer; a gate electrode; a source electrode; and a drain electrode, wherein a gate insulating film is between the active layer and the gate electrode, an interlayer insulating film is between the gate electrode, the source electrode, and the drain electrode, wherein the gate insulating film and the interlayer insulating film extend to the non-display region, and the thin-film encapsulation layer comprises at least one inorganic film, wherein the at least one inorganic film is in contact with the gate insulating film or the interlayer insulating film outside the dam unit.

15 . The organic light-emitting display device of claim 14 , wherein the at least one inorganic film passes an end portion of the interlayer insulating film and then contacts an upper surface of the substrate.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Deukjong
• Lee Keunsoo

Classifications

• H10K59/82

  Interconnections, e.g. terminals (H10K59/131, H10K59/179 take precedence) · CPC title

• H10K59/873 Primary

  Encapsulations · CPC title

• H10K59/8731

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title

• H10K50/8426

  Peripheral sealing arrangements, e.g. adhesives, sealants · CPC title

• H10K59/131 Primary

  Interconnections, e.g. wiring lines or terminals · CPC title