Organic light-emitting display devices and methods of manufacturing organic light-emitting display devices

Patent metadata

Field	Value
Publication number	US-9853250-B2
Application number	US-201615178342-A
Country	US
Kind code	B2
Filing date	Jun 9, 2016
Priority date	Aug 17, 2015
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

An organic light-emitting display (OLED) device is disclosed. In one aspect, the OLED device includes a substrate including a display region and a peripheral region and a transistor disposed in the display region and including an active pattern, a gate insulation layer, a gate electrode, a source electrode, and a drain electrode. The OLED device also includes an organic light-emitting structure disposed in the display region and electrically connected to the transistor, the organic light-emitting structure including a first electrode, an organic light-emitting layer, and a second electrode, and a first wiring and a second wiring disposed in the peripheral region and configured to generate heat. The OLED device further includes an encapsulation layer disposed over the first and second wirings and the organic light-emitting structure and a heat blocking layer disposed between the first and the second wirings and the encapsulation layer to block the heat generated from the first and the second wirings.

First claim

What is claimed is:

1. An organic light-emitting display (OLED) device, comprising:
a substrate having a display region and a peripheral region;
a transistor disposed in the display region, the transistor including an active pattern, a gate insulation layer, a gate electrode, a source electrode, and a drain electrode;
an organic light-emitting structure disposed in the display region and electrically connected to the transistor, the organic light-emitting structure including a first electrode, an organic light-emitting layer, and a second electrode;
a first wiring and a second wiring disposed in the peripheral region;
an encapsulation layer disposed over the first and second wirings and the organic light-emitting structure; and
a heat blocking layer disposed between the first and the second wirings and the encapsulation layer to block a heat generated from the first and the second wirings,
wherein the heat blocking layer and the first electrode are disposed on the same layer.

2. The OLED device of claim 1 , wherein the first and second wirings are disposed on the same layer.

3. The OLED device of claim 1 , wherein each of the first and the second wirings is configured to transfer an aging signal to a pixel of the OLED device.

4. The OLED device of claim 1 , wherein the first wiring is configured to transfer a red data signal or a blue data signal to a pixel of the OLED device, and wherein the second wiring is configured to transfer a green data signal to a pixel of the OLED device.

5. The OLED device of claim 1 , wherein each of the first and the second wirings includes at least one of molybdenum (Mo) and titanium (Ti).

6. The OLED device of claim 1 , wherein the encapsulation layer includes at least one organic film and at least one inorganic film.

7. The OLED device of claim 1 , wherein the encapsulation layer has a stacked structure including a first inorganic film, an organic film, and a second inorganic film.

8. The OLED device of claim 1 , wherein the heat blocking layer includes at least one of silver (Ag) and indium tin oxide (ITO).

9. The OLED device of claim 1 , wherein the first and second wirings and the gate electrode are disposed on the same layer.

10. The OLED device of claim 1 , further comprising:
an additional insulation layer disposed over the first and the second wirings in the peripheral region; and
a third wiring disposed over the additional insulation layer.

11. The OLED device of claim 10 , wherein the additional insulation layer has a contact hole exposing the second wiring, and wherein the third wiring contacts the second wiring through the contact hole.

12. The OLED device of claim 10 , wherein the third wiring includes at least one of aluminum (Al) and copper (Cu).

13. The OLED device of claim 10 , wherein the third wiring has a resistance less than that of the second wiring.

14. The OLED device of claim 10 , wherein the third wiring, the source electrode, and the drain electrode are disposed on the same layer.

15. A method of manufacturing an organic light-emitting display (OLED) device, comprising:
providing a substrate including a display region and a peripheral region;
forming a transistor in the display region, the transistor including an active pattern, a gate insulation layer, a gate electrode, a source electrode, and a drain electrode;
forming an organic light-emitting structure in the display region, the organic light-emitting structure being electrically connected to the transistor and including a first electrode, an organic light-emitting layer, and a second electrode;
forming a first wiring and a second wiring in the peripheral region;
forming a heat blocking layer to cover the first and the second wirings in the peripheral region; and
forming an encapsulation layer over the heat blocking layer and the organic light-emitting structure,
wherein the heat blocking layer and the first electrode are simultaneously formed.

16. The method of claim 15 , wherein the first and second wirings and the gate electrode are simultaneously formed.

17. The method of claim 15 , further comprising:
forming an additional insulation layer over the first and the second wirings in the peripheral region;
partially removing the additional insulation layer to form a contact hole exposing the second wiring; and
forming a third wiring over the additional insulation layer while filling the contact hole.

18. The method of claim 17 , wherein the third wiring, the source electrode, and the drain electrode are simultaneously formed.

Assignees

• Samsung Display Co Ltd

Inventors

• Hong Sang-Mok
• Kim Jung-Hwa

Classifications

• H01L27/3262

  Electricity · mapped topic

• H01L27/3276

  Electricity · mapped topic

• H01L51/529 Primary

  Electricity · mapped topic

• H01L51/5256

  Electricity · mapped topic

• H01L51/56

  Electricity · mapped topic