Organic light emitting diode display

Patent metadata

Field	Value
Publication number	US-2016307971-A1
Application number	US-201514944686-A
Country	US
Kind code	A1
Filing date	Nov 18, 2015
Priority date	Apr 16, 2015
Publication date	Oct 20, 2016
Grant date	—

Abstract

An organic light emitting diode display including a substrate includes a display area and a peripheral area surrounding the display area, an organic light emitting member disposed in the display area, dams disposed in the peripheral area, a thin film encapsulation layer covering a portion of a first dam among the dams and the organic light emitting member, a touch sensing member disposed on the thin film encapsulation layer of the display area, and a first crack sensing member disposed at a position corresponding to the first dam.

First claim

What is claimed is:

1 . An organic light emitting diode display, comprising:
a substrate comprising a display area and a peripheral area surrounding the display area; an organic light emitting member disposed in the display area; dams disposed in the peripheral area; a thin film encapsulation layer covering a portion of a first dam among the dams and the organic light emitting member; a touch sensing member disposed on the thin film encapsulation layer of the display area; and a first crack sensing member disposed at a position corresponding to the first dam.

2 . The organic light emitting diode display of claim 1 , wherein:
the first dam among the dams is positioned to be closest to a pixel of the light emitting member, and the first dam surrounds the pixel.

3 . The organic light emitting diode display of claim 1 , wherein the first crack sensing member comprises:
a first lower crack sensing line disposed under the first dam: and a first upper crack sensing line disposed on the thin film encapsulation layer of the peripheral area and disposed on the first dam.

4 . The organic light emitting diode display of claim 3 , wherein the first upper crack sensing line is disposed on the same layer as the touch sensing member.

5 . The organic light emitting diode display of claim 4 , wherein the organic light emitting member comprises:
a semiconductor disposed on the substrate; a first gate insulating layer disposed on the semiconductor and the substrate; a gate electrode disposed on the first gate insulating layer; a second gate insulating layer disposed on the gate electrode and the first gate insulating layer; an interlayer insulating layer disposed on the second gate insulating layer; a source electrode and a drain electrode disposed on the interlayer insulating layer; a pixel passivation layer covering the source electrode and the drain electrode; a pixel partition disposed on the pixel passivation layer; and an organic light emitting diode connected to the drain electrode, wherein the first lower crack sensing line is disposed between the second gate insulating layer and the interlayer insulating layer.

6 . The organic light emitting diode display of claim 5 , further comprising:
a first connecting member connecting the first lower crack sensing line and the first upper crack sensing line to each other.

7 . The organic light emitting diode display of claim 5 , wherein:
the first dam comprises a first peripheral passivation layer that is separated from the pixel passivation layer and is disposed on the same layer as the pixel passivation layer, and a portion of the thin film encapsulation layer is disposed on the first peripheral passivation layer.

8 . The organic light emitting diode display of claim 7 , wherein the first connecting member penetrates the first peripheral passivation layer and the thin film encapsulation layer.

9 . The organic light emitting diode display of claim 7 , further comprising:
a second dam separated from the first dam and enclosing the first dam; and a third dam separated from the second dam and enclosing the second dam, wherein the second dam comprises a second peripheral passivation layer disposed on the same layer as the first peripheral passivation layer and a first peripheral partition formed on the second peripheral passivation layer, and the third dam comprises a third peripheral passivation layer disposed on the same layer as the first peripheral passivation layer, a second peripheral partition disposed on the third peripheral passivation layer, and a spacer disposed on the second peripheral partition.

10 . The organic light emitting diode display of claim 9 , further comprising:
a second crack sensing member formed at a position corresponding to the second dam; and a third crack sensing member formed at a position corresponding to the third dam.

11 . The organic light emitting diode display of claim 10 , wherein:
the second crack sensing member comprises:
a second lower crack sensing line disposed on the same layer as the first lower crack sensing line,
a second upper crack sensing line disposed on the second peripheral partition, and
a second connecting member connecting the second lower crack sensing line and the second upper crack sensing line to each other, and
the third crack sensing member comprises:
a third lower crack sensing line disposed on the same layer as the first lower crack sensing line,
a third upper crack sensing line disposed on the spacer, and
a third connecting member connecting the third lower crack sensing line and the third upper crack sensing line to each other.

12 . The organic light emitting diode display of claim 11 , wherein:
the second connecting member penetrates the second peripheral passivation layer and the second peripheral partition, and the third connecting member penetrates the third peripheral passivation layer, the third peripheral partition, and the spacer.

Assignees

• Samsung Display Co Ltd

Inventors

• Jeon Hee Chul

Classifications

• H10P74/27

  Structural arrangements therefor · CPC title

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• G09G3/006

  Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays (testing individual LED's G01R31/2635; testing lamps G01R31/44; testing of optical features of LCD displays G02F1/1309) · CPC title

• G09G2330/12

  Test circuits or failure detection circuits included in a display system, as permanent part thereof · CPC title

• H10K59/131

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