Transparent OLED device and display device employing same

Patent metadata

Field	Value
Publication number	US-RE48695-E
Application number	US-201916412454-A
Country	US
Kind code	E1
Filing date	May 15, 2019
Priority date	Dec 31, 2013
Publication date	Aug 17, 2021
Grant date	Aug 17, 2021

Abstract

The present invention discloses a transparent OLED device, which comprises a plurality of pixels, each pixel comprising an organic functional layer, a first transparent electrode and a second transparent electrode being disposed on both sides of the organic functional layer, a reflective electrode being disposed on one side of the organic functional layer, the area of the reflective electrode being less than that of the organic functional layer. With regard to the transparent OLED device, by providing a reflective electrode, a combination of a light-emitting device over a microdomain is combined with a transparent light-emitting device, such that the luminance on both sides of a transparent OLED device can be respectively adjusted to be the same or different as required. The present invention can be applied to the field of transparent illumination or display.

First claim

What is claimed is:

1. A transparent OLED device, comprising:
a plurality of pixels, each pixel including:
an organic functional layer having two sides,
a first transparent electrode, and
a second transparent electrode being disposed on both the two sides of the organic functional layer respectively, and
wherein a reflective electrode is disposed on one side of the sides of the organic functional layer, and the area of the reflective electrode is being less than that of the organic functional layer, and
wherein
the reflective electrode is located between the first transparent electrode and the organic functional layer, and an insulating layer is disposed between the reflective electrode and the first transparent electrode, or
the reflective electrode is located on a same side as the first transparent electrode, and is disposed in parallel to the first transparent electrode; and a slit is formed between the reflective electrode and the first transparent electrode.

2. The transparent OLED device according to claim 1 , wherein the reflective electrode is located between the first transparent electrode and the organic functional layer, and an insulting layer is disposed between the reflective electrode and the first transparent electrode.

3. The transparent OLED device according to claim 1 , wherein the area of the reflective electrode is 10% to 50% of the area of the organic functional layer.

4. The transparent OLED device according to claim 1 , wherein reflective electrodes between adjacent pixels in one direction are electrically connected, and the reflective electrodes are led out from pixels located at both ends and connected to a power supply.

5. The transparent OLED device according to claim 1 , wherein the reflective electrode is located on a same side as the first transparent electrode, and is disposed in parallel to the first transparent electrode; and a slit is formed between the reflective electrode and the first transparent electrode.

6. The transparent OLED device according to claim 5 1, wherein the slit is filled with an insulating material.

7. The transparent OLED device according to claim 5 1, wherein the second transparent electrode is divided into two portions, with one portion being disposed opposite to the reflective electrode and the other portion being disposed opposite to the first transparent electrode.

8. The transparent OLED device according to claim 1 , wherein the first transparent electrode is an anode, and the second transparent electrode is a cathode; or the first transparent electrode is a cathode, and the second transparent electrode is an anode.

9. The transparent OLED device according to claim 1 , wherein:
the average light transmittance of the first transparent electrode at a visible wavelength is 50% to 95%; and
the average light transmittance of the second transparent electrode at a visible wavelength is 5% to 95%.

10. An organic light emitting display device comprising a transparent OLED device according to claim 1 .

11. The transparent OLED device according to claim 2 , wherein reflective electrodes between adjacent pixels in one direction are electrically connected, and the reflective electrodes are led out from pixels located at both ends and connected to a power supply.

12. An organic light emitting display device comprising a transparent OLED device according to claim 2 .

13. An organic light emitting display device comprising a transparent OLED device according to claim 3 .

14. An organic light emitting display device comprising a transparent OLED device according to claim 4 .

15. An organic light emitting display device comprising a transparent OLED device according to claim 5 .

16. An organic light emitting display device comprising a transparent OLED device according to claim 6 .

17. An organic light emitting display device comprising a transparent OLED device according to claim 7 .

18. An organic light emitting display device comprising a transparent OLED device according to claim 8 .

19. An organic light emitting display device comprising a transparent OLED device according to claim 9 .

20. An organic light emitting display device comprising a transparent OLED device according to claim 11 .

Assignees

• Beijing Visionox Technology Co
• Univ Tsinghua

Inventors

• Zhang Guohui
• Li Mengzhen
• Li Man
• Duan Lian

Classifications

• H10K59/80518

  Reflective anodes, e.g. ITO combined with thick metallic layers · CPC title

• H10K59/131

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

• H10K59/121 Primary

  characterised by the geometry or disposition of pixel elements · CPC title

• H01L27/3276 Primary

  Electricity · mapped topic

• H01L2251/5323

  Electricity · mapped topic