ORGANIC LIGHT EMITTING DISPLAY DEVICE

• US 20180083217A1
• Filed: 09/18/2017
• Published: 03/22/2018
• Est. Priority Date: 09/21/2016
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: CHUNG, Jin-Koo, KIM, Seong-Min, NAM, Eun-Kyoung, PARK, Jin-Hyun
• Granted Patent: US 10,230,067 B2
• Time in Patent Office: Days
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 3/3208 organic, e.g. using organic light-emitting diodes [OLED]
• CPC Class Codes: H10K 50/805 Electrodes
• CPC Class Codes: H10K 50/813 characterised by their shape
• CPC Class Codes: H10K 50/84 Passivation; Containers; Encapsulations
• CPC Class Codes: H10K 59/124 Insulating layers formed between TFT elements and OLED elements
• CPC Class Codes: H10K 59/131 Interconnections, e.g. wiring lines or terminals

Abstract

An organic light emitting display (OLED) device is disclosed. The OLED device may include a substrate comprising a display region and a peripheral region, the display region comprising a first transmission portion and at least one light emitting portion, the peripheral region comprising a second transmission portion and at least one electrode placement portion, a first electrode in the display region, an organic light emitting layer on the first electrode, a second electrode in the display region and the peripheral region, the second electrode opposite to the first electrode with respect to the organic light emitting layer, and a third electrode in the peripheral region. The first electrode may be patterned as an island shape to be separated per the light emitting portion. The third electrode may be patterned as an island shape to be separated per the electrode placement portion.

Claims

1. An organic light emitting display (OLED) device, the OLED device comprising:

a substrate comprising a display region and a peripheral region surrounding at least one side of the display region, the display region comprising a first transmission portion and at least one light emitting portion, the peripheral region comprising a second transmission portion and at least one electrode placement portion;

a pixel circuit on the substrate in the display region;

a passivation layer in the display region and the peripheral region, the passivation layer covering the pixel circuit;

a first electrode on the passivation layer in the display region, the first electrode being electrically connected to the pixel circuit;

an organic light emitting layer on the first electrode;

a second electrode in the display region and the peripheral region, the second electrode opposite to the first electrode with respect to the organic light emitting layer; and

a third electrode on the passivation layer in the peripheral region;

wherein the first electrode is patterned as an island shape to be separated per the at least one light emitting portion, and

wherein the third electrode is patterned as an island shape to be separated per the at least one electrode placement portion.

2. The OLED device of claim 1, wherein the third electrode is not overlapped with the second transmission portion.

3. The OLED device of claim 1, wherein the first electrode and the third electrode are disposed on a same level on the substrate and formed of a same material.

4. The OLED device of claim 1, further comprising a voltage transmissive line disposed in a wiring portion in the peripheral region, the voltage transmissive line transmitting a common voltage to the second electrode.

5. The OLED device of claim 4, wherein the voltage transmissive line is not overlapped with the second transmission portion.

6. The OLED device of claim 4, wherein the pixel circuit comprises an active pattern, a gate electrode insulated from the active pattern, and source and drain electrodes each connected to the active pattern, and

wherein the voltage transmissive line, and the source and drain electrodes are disposed on a same level on the substrate and formed of a same material.

7. The OLED device of claim 4, wherein the third electrode comprises a voltage transmissive electrode disposed in the wiring portion and an auxiliary electrode disposed in the peripheral region outside the wiring portion, and

wherein the voltage transmissive electrode is disposed between the voltage transmissive line and the second electrode to electrically connect the voltage transmissive line and the second electrode.

8. The OLED device of claim 7, further comprising a driving circuit in the peripheral region.

9. The OLED device of claim 8, wherein the driving circuit comprises at least one of a scan driving circuit, a light emitting control circuit, and an initialization voltage transmissive line.

10. The OLED device of claim 8, wherein the driving circuit is not overlapped with the second transmission portion.

11. The OLED device of claim 8, wherein at least a portion of the auxiliary electrode is overlapped with the driving circuit.

12. The OLED device of claim 4, wherein the third electrode is disposed between the voltage transmissive line and the second electrode to electrically connect the voltage transmissive line and the second electrode.

13. The OLED device of claim 12, wherein the third electrode is disposed only in the wiring portion, and is not disposed in a remaining portion of the peripheral region, the remaining portion being outside the wiring portion.

14. The OLED device of claim 1, wherein an area of the first transmission portion is a same area as an area of the second transmission portion.

15. An OLED device, comprising:

a display region;

a peripheral region surrounding at least one side of the display region;

a first transmission portion in the display region;

a first light emitting portion spaced apart from the first transmission portion in the display region, the first light emitting portion comprising a first electrode, an organic light emitting layer, and a second electrode;

a second transmission portion in the peripheral region; and

a first electrode placement portion spaced apart from the second transmission portion in the peripheral region, the first electrode placement portion comprising a third electrode,

wherein a distance between the second transmission portion and the first electrode placement portion is a same distance as a distance between the first transmission portion and the first light emitting portion.

16. The OLED device of claim 15, wherein a shape of the second transmission portion and a shape of the first electrode placement portion are respectively each of same shapes as a shape of the first transmission portion and a shape of the first light emitting portion.

17. The OLED device of claim 15, further comprising:

a second light emitting portion spaced apart from the first transmission portion and the first light emitting portion in the display region, the second light emitting portion comprising the first electrode, the organic light emitting layer, and the second electrode; and

a second electrode placement portion spaced apart from the second transmission portion and the first electrode placement portion in the peripheral region, the second electrode placement portion comprising the third electrode.

18. The OLED device of claim 17, wherein a distance between the second transmission portion and the second electrode placement portion is a same distance as a distance between the first transmission portion and the second light emitting portion.

19. The OLED device of claim 17, wherein a distance between the first electrode placement portion and the second electrode placement portion is a same distance as a distance between the first light emitting portion and the second light emitting portion.

20. The OLED device of claim 17, wherein a shape of the first electrode placement portion and a shape of the second electrode placement portion are respectively each of same shapes as a shape of the first light emitting portion and a shape of the second light emitting portion.