Flexible Organic Light Emitting Diode Display Panel

• US 20160064461A1
• Filed: 08/19/2015
• Published: 03/03/2016
• Est. Priority Date: 08/31/2014
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: Kim, YongChul, Lee, JongKyun, Jeong, Haeyeon, Kuk, SeungHee
• Granted Patent: US 9,570,524 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H10K 2102/311 Flexible OLED
• CPC Class Codes: H10K 59/122 Pixel-defining structures or layers, e.g. banks
• CPC Class Codes: H10K 77/111 Flexible substrates

Abstract

Provided is a flexible organic light emitting diode display panel including: a substrate in which an opening region and a non-opening region are defined; an organic light emitting diode disposed on the substrate; a bank layer disposed in the non-opening region; and a peeling reduction layer having a reverse-tapered shape disposed in the non-opening region.

Claims

1. A flexible organic light emitting diode display panel comprising:

a substrate in which an opening region and a non-opening region are defined;

an organic light emitting diode disposed on the substrate;

a bank layer disposed in the non-opening region; and

a peeling reduction layer having a reverse-tapered shape disposed in the non-opening region.

2. The flexible organic light emitting diode display panel according to claim 1, wherein the peeling reduction layer is disposed on the bank layer.

3. The flexible organic light emitting diode display panel according to claim 1, wherein a distance between adjacent opening regions is the same as a distance between adjacent peeling reduction layers.

4. The flexible organic light emitting diode display panel according to claim 1, wherein the peeling reduction layer has a zigzag shape.

5. The flexible organic light emitting diode display panel according to claim 4, wherein the peeling reduction layer has one shape selected from a triangle wave shape, a sine wave shape, and a pulse wave shape.

6. The flexible organic light emitting diode display panel according to claim 1, wherein the substrate includes a thin film transistor, and

the organic light emitting diode includes a pixel electrode connected with the thin film transistor, an organic light emitting layer, and a common electrode.

7. The flexible organic light emitting diode display panel according to claim 6, wherein the common electrode is disposed to cover a side surface and a top surface of the peeling reduction layer.

8. The flexible organic light emitting diode display panel according to claim 6, wherein the organic light emitting layer has discontinued portions adjacent to the peeling reduction layer.

9. The flexible organic light emitting diode display panel according to claim 1, further comprising:

an encapsulation layer disposed on the organic light emitting diode.

10. The flexible organic light emitting diode display panel according to claim 9, wherein the encapsulation layer is disposed to cover a side surface and a top surface of the peeling reduction layer.

11. The flexible organic light emitting diode display panel according to claim 1, wherein the bank layer includes at least one hole, and

the peeling reduction layer is inserted into the at least one hole.

12. The flexible organic light emitting diode display panel according to claim 11, wherein a depth of the at least one hole corresponds to a height of the bank layer.

13. The flexible organic light emitting diode display panel according to claim 12, wherein the depth of the at least one hole is lower than the height of the bank layer.