OLED display panel and display

Patent metadata

Field	Value
Publication number	US-11031576-B2
Application number	US-201716081884-A
Country	US
Kind code	B2
Filing date	Dec 19, 2017
Priority date	Jun 22, 2017
Publication date	Jun 8, 2021
Grant date	Jun 8, 2021

Abstract

The present disclosure relates to the field of display technology and discloses an OLED display panel and a display. The OLED display panel includes a base substrate, an OLED unit disposed on the base substrate, an organic layer disposed on the base substrate and covering the OLED unit, and a package cover disposed on a side of the organic layer away from the base substrate and is cell aligned with the base substrate, wherein the organic layer includes an organic material and a metal nitride capable of reacting with moisture to release ammonia gas. In the above OLED display panel, the organic layer is used to absorb the moisture contained in the gas entering the OLED display panel, delays the aging rate of the OLED unit, and prolongs the life of the OLED unit.

First claim

What is claimed is:

1. An OLED display panel, comprising a base substrate, an OLED unit disposed on the base substrate, an organic layer disposed on the base substrate and covering the OLED unit, and a package cover disposed on a side of the organic layer away from the base substrate and is cell aligned with the base substrate, wherein:
the organic layer comprises an organic material and a metal nitride capable of reacting with moisture to release ammonia gas,
wherein a closed cavity is formed between the organic layer and the package cover, and the closed cavity is filled with nitrogen gas, and a pressure of the nitrogen gas in the closed cavity is higher than a standard atmospheric pressure,
wherein the pressure of the nitrogen gas in the closed cavity is 1.05 to 1.2 times higher than the standard atmospheric pressure.

2. The OLED display panel according to claim 1 , wherein the organic layer further comprises lignin.

3. The OLED display panel according to claim 2 , wherein a mass ratio of the lignin in the organic layer is more than 0% and less than or equal to 10%.

4. The OLED display panel according to claim 1 , wherein the metal nitride is magnesium nitride, and the magnesium nitride accounts for 1% to 15% by mass in the organic layer.

5. The OLED display panel according to claim 1 , wherein a silicon nitride layer is further disposed between the organic layer and the OLED unit, and the silicon nitride layer is used for isolating a gas and the OLED unit.

6. The OLED display panel according to claim 1 , further comprising a light shielding layer disposed on a side of the package cover facing the base substrate.

7. The OLED display panel according to claim 1 , wherein the side of the organic layer away from the base substrate is further provided with a metal layer capable of forming a dense oxide film when oxidized by oxygen.

8. The OLED display panel according to claim 7 , wherein the metal layer is non-transparent metal.

9. A display, comprising an OLED display panel, wherein the display panel comprises: a base substrate, an OLED unit disposed on the base substrate, an organic layer disposed on the base substrate and covering the OLED unit, and a package cover disposed on a side of the organic layer away from the base substrate and is cell aligned with the base substrate, wherein:
the organic layer comprises an organic material and a metal nitride capable of reacting with moisture to release ammonia gas,
wherein a closed cavity is formed between the organic layer and the package cover, and the closed cavity is filled with nitrogen gas, and a pressure of the nitrogen gas in the closed cavity is higher than a standard atmospheric pressure, and
wherein the pressure of the nitrogen gas in the closed cavity is 1.05 to 1.2 times higher than the standard atmospheric pressure.

10. The display according to claim 9 , wherein the organic layer further comprises lignin.

11. The display according to claim 10 , wherein a mass ratio of the lignin in the organic layer is more than 0% and less than or equal to 10%.

12. The display according to claim 9 , wherein the metal nitride is magnesium nitride, and the magnesium nitride accounts for 1% to 15% by mass in the organic layer.

13. The display according to claim 9 , wherein a silicon nitride layer is further disposed between the organic layer and the OLED unit, and the silicon nitride layer is used for isolating a gas and the OLED unit.

14. The display according to claim 9 , wherein the OLED display panel further comprises a light shielding layer disposed on a side of the package cover facing the base substrate.

15. The display according to claim 9 , wherein the side of the organic layer away from the base substrate is further provided with a metal layer capable of forming a dense oxide film when oxidized by oxygen.

16. The display according to claim 15 , wherein the metal layer is non-transparent metal.

Assignees

• Boe Technology Group Co Ltd
• Hefei Boe Optoelectronics Tech

Inventors

• Wang Chuanyan

Classifications

• H10K59/873

  Encapsulations · CPC title

• H10K59/8722

  Peripheral sealing arrangements, e.g. adhesives, sealants · CPC title

• H10K50/846

  comprising getter material or desiccants · CPC title

• H10K59/874 Primary

  including getter material or desiccant · CPC title

• H01L51/524

  Electricity · mapped topic