Organic light emitting display device

• US 9,899,460 B2
• Filed: 06/30/2016
• Issued: 02/20/2018
• Est. Priority Date: 06/30/2015
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: Heo, JoonYoung, Kim, YoungMi, Park, YongMin, Jeong, Yoonseob
• Primary Examiner(s): Tran, Dzung
• Application Number:
  US15/199,048
• Publication Number:
  US 20170005153A1
• Time in Patent Office: 600 Days
• Field of Search: 257 40
• CPC Class Codes: H10K 50/813 characterised by their shape
• CPC Class Codes: H10K 59/1201 Manufacture or treatment
• CPC Class Codes: H10K 59/122 Pixel-defining structures or layers, e.g. banks
• CPC Class Codes: H10K 59/123 Connection of the pixel electrodes to the thin film transistors [TFT]
• CPC Class Codes: H10K 59/126 Shielding, e.g. light-blocking means over the TFTs
• CPC Class Codes: H10K 59/131 Interconnections, e.g. wiring lines or terminals
• CPC Class Codes: H10K 71/00 Manufacture or treatment specially adapted for the organic devices covered by this subclass
• CPC Class Codes: H10K 71/861 Repairing

Abstract

Discussed is an organic light emitting display device that can include a bank that defines the periphery of an emission area; a structure disposed on the bank; a first electrode disposed in the emission area; an organic layer disposed on the bank, the structure, and the first electrode, an organic layer disposed on the structure being separated from other organic layers; and a second electrode disposed on the organic layer.

Claims

1. An organic light emitting display device comprising:

a bank defining a border of an emission area;

a structure disposed on the bank;

a first electrode disposed in the emission area;

an organic layer disposed on the bank, the structure, and the first electrode, a height of the structure being such that the organic layer disposed on the structure is separated from the organic layers disposed on the bank and the first electrode;

a second electrode disposed on the organic layer; and

a first connection pattern disposed under the structure,

wherein the first connection pattern includes a gap under the structure.

2. The organic light emitting display device according to claim 1, wherein the structure has a reverse-tapered shape from the bank.

3. The organic light emitting display device according to claim 1, wherein the structure has a plane structure formed into a plane shape or a ring shape.

4. The organic light emitting display device according to claim 1, wherein a cutting point in which an electrical connection line is disconnected is located under the structure.

5. The organic light emitting display device according to claim 1, wherein a cutting point in which an electrical connection line is not to be disconnected is located under the structure.

6. The organic light emitting display device according to claim 5, further comprising:

a transistor disposed on a non-emission area to receive a high power voltage through a high power voltage line and supply a driving current to the first electrode, the organic layer, and the second electrode depending on a data voltage, under the organic layer,

wherein the line is a first connection pattern that electrically connects the transistor and the first electrode or a second connection pattern located between the transistor and a reference voltage line that applies a reference voltage to a source/drain of the transistor.

7. The organic light emitting display device according to claim 1, wherein a floating pattern insulated from the first electrode or a connection pattern formed by laser-welding the floating pattern and electrically connected to the first electrode is disposed under the structure.

8. The organic light emitting display device according to claim 7, wherein the floating pattern is located on a gate layer or a source-drain layer, or located on both of the gate layer and the source-drain layer.

9. The organic light emitting display device according to claim 7, wherein the floating pattern is formed of at least one of a gate material or a source-drain material.

10. An organic light emitting display device comprising:

an insulation layer;

a bank disposed on the insulation layer and defining a border of an emission area;

a structure disposed on the insulation layer;

a first electrode disposed in the emission area;

an organic layer disposed on the bank, the structure, and the first electrode, a height of the structure being such that the organic layer disposed on the structure is separated from the organic layers disposed on the bank and the first electrode;

a second electrode disposed on the organic layer; and

a first connection pattern disposed under the structure,

wherein the first connection pattern includes a gap under the structure.

11. The organic light emitting display device according to claim 10, wherein the bank further includes an open portion, and the structure is located at the open portion on the insulation layer.

12. The organic light emitting display device according to claim 11, wherein the structure has a plane structure formed into a plane shape or a ring shape.

13. The organic light emitting display device according to claim 11, wherein a cutting point in which an electrical connection line is disconnected is located under the structure.

14. The organic light emitting display device according to claim 11, wherein a cutting point in which an electrical connection line is to be disconnected is located under the structure.

15. The organic light emitting display device according to claim 12, wherein a floating pattern insulated from the first electrode or a connection pattern formed by laser-welding the floating pattern and electrically connected to the first electrode is disposed under the structure.

16. The organic light emitting display device according to claim 12, wherein the bank is a black bank.

17. The organic light emitting display device according to claim 11, wherein the structure has a reverse-tapered shape from the bank.

18. The organic light emitting display device according to claim 14, further comprising:

a transistor disposed on a non-emission area to receive a high power voltage through a high power voltage line and supply a driving current to the first electrode, the organic layer, and the second electrode depending on a data voltage, under the organic layer,

wherein the electrical connection line is a first connection pattern that electrically connects the transistor and the first electrode or a second connection pattern located between the transistor and a reference voltage line that applies a reference voltage to a source/drain of the transistor.